Entries |
Document | Title | Date |
20080206628 | LITHIUM SECONDARY BATTERY - There is disclosed a lithium secondary battery which is high in output characteristics and excellent in long-life properties. This battery comprises electrodes-wound bodies each constructed such that a lithium storable/releasable positive electrode and a lithium storable/releasable negative electrode are wound together with an electrolyte and a separator being interposed between these electrodes. The electrodes-wound bodies are electrically connected in parallel by making use of a collector to form a group of electrodes and the group of electrodes is housed in a square battery case. | 08-28-2008 |
20080241645 | Lithium ion secondary batteries - Secondary batteries are provided in which the cathode includes LiFePO | 10-02-2008 |
20080241646 | LITHIUM SECONDARY BATTERY - A lithium secondary battery has a wound electrode assembly ( | 10-02-2008 |
20080241647 | CYLINDRICAL LITHIUM SECONDARY BATTERY - A cylindrical lithium secondary battery includes a positive electrode ( | 10-02-2008 |
20080248375 | Lithium secondary batteries - Secondary batteries having fast charge times are provided. In some implementations, the cathode includes LiFePO | 10-09-2008 |
20080254348 | BATTERY PACK - A battery pack includes a non-aqueous electrolyte secondary battery, a rigid covering member, and a protection circuit board. The secondary battery includes a battery element and a flexible covering member formed of a first laminated film composed of a first heat-bonding layer, a first metal layer, and a first outer covering layer laminated successively. The flexible covering member is sealed along around the battery element while leaving electrode terminals of the positive and negative electrodes extended outside the battery element. The rigid covering member is formed of a second laminated film composed of a second heat-bonding layer, a second metal layer, and a second outer covering layer laminated successively. The flexible covering member and the rigid covering member are bonded with an adhesive strength equal to or higher than atmospheric pressure and with a peel strength equal to or lower than a breaking strength of the flexible covering member. | 10-16-2008 |
20080261105 | Nickel Hydrogen Storage Battery and Method for Manufacturing Negative Electrode Thereof - A nickel hydrogen storage battery is provided which includes an electrode assembly formed by winding spirally a strip-like negative electrode ( | 10-23-2008 |
20080280193 | SECONDARY BATTERY - A battery that can secure the sufficient capacity, reduces deviation of the pressure distribution inside a spirally wound electrode body, and shows the superior charge and discharge characteristics is provided. The battery includes: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead jointed to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body. | 11-13-2008 |
20080286635 | LAMINATED PACKAGING MATERIAL, AND BATTERY USING THE MATERIAL - A laminated packaging material and a battery using the material are disclosed. The material includes an inner layer composed of a resin film, a first adhesive layer, a metal layer, a second adhesive layer, and an outer layer composed of a resin film. At least one of the first adhesive layer or the second adhesive layer is composed of an adhesive composition, as an essential component, selected from the group consisting of a resin having an active hydrogen group in a side chain, polyfunctional isocyanates, and a polyfunctional amine compound. | 11-20-2008 |
20080292946 | PRISMATIC LITHIUM ION RECHARGEABLE BATTERY - The provided is a prismatic lithium ion battery including an electrode assembly having a wound structure of a stack of a positive electrode, a separator, and a negative electrode. The stack has a first side edge and a second side edge, and the wound structure of the stack is formed by winding the stack around the first side edge. The wound structure of the stack has a side surface that is substantially parallel to the first side edge, and a top surface and a bottom surface, each of which is substantially perpendicular to the first side edge. A first tape is coupled to the second side edge portion of the stack of the electrode assembly, and a second tape covers the bottom surface and part of the side surface of the wound structure of the stack in a manner that the second tape does not overlap the first tape. | 11-27-2008 |
20090023054 | Lithium cell - A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS | 01-22-2009 |
20090029240 | BATTERY CELL DESIGN AND METHODS OF ITS CONSTRUCTION - In some embodiments, a battery cell can include an assembly having an anode sheet and a cathode sheet separated by separator membranes, each sheet having an electroactive layer on a current collector. At least one of the current collectors can be in electrical communication with conducting tabs that extend from at least one of the anode sheet and the cathode sheet, the conducting tabs extends from an end face of the spirally wound assembly. In addition, the cell can include a first tab insulator having concentrically positioned outer and inner members, each of the outer and inner members having at least one slot that allows one or more of the plurality of conducting tabs to pass through. The inner and outer members are adjustable with respect to relative angular orientation of the at least one slot on the outer and inner members of the first tab insulator. | 01-29-2009 |
20090061293 | All-Temperature LiFeS2 Battery with Ether and Low Concentration LiI Electrolyte - A lithium electrochemical cell design incorporating a low molality electrolyte including LiI is disclosed. The resulting cell delivers excellent performance under a wide range of temperatures, conditions and drain rates. | 03-05-2009 |
20090075161 | ELECTRIC STORAGE DEVICE - A positive electrode | 03-19-2009 |
20090081532 | Electrochemical cell with improved internal contact - Electrochemical battery cells with strip-like electrodes and having a pressure contact between a lead from one of the electrodes and a side wall of the cell container. An electrochemical cell having a spiral wound electrode assembly having an internal lead in direct pressure contact with a lithium foil negative electrode free of a separate current collector and in contact with an inner portion of the cell container, wherein specified contact between the lead and lithium foil provides current flow between the container and foil. | 03-26-2009 |
20090081533 | METHOD AND APPARATUS FOR MANUFACTURING BATTERY ELECTRODE PLATE AND BATTERY USING THE SAME - A battery electrode plate ( | 03-26-2009 |
20090092889 | LITHIUM SECONDARY BATTERY - Provided is a lithium secondary battery which is stable to penetration of a sharp object, which may occur by external impact. The lithium secondary battery comprises an electrode assembly which is formed by winding a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate; and a can for receiving the electrode assembly, wherein the separator is formed of a ceramic material, a polarity of the first electrode plate is opposite to that of the can, and the outermost part of the first electrode plate is disposed further outside than the outermost part of the second electrode plate. | 04-09-2009 |
20090098446 | SECONDARY BATTERY - The secondary battery of this invention includes: an electrode assembly comprising a first electrode and a second electrode which are wound or laminated with only a heat-resistant porous insulating layer interposed between the first electrode and the second electrode; and a first current collector plate electrically connected to the first electrode. The first electrode includes a first electrode mixture layer formed on a first electrode core member. The second electrode includes a second electrode mixture layer formed on a second electrode core member. An end of the first electrode protrudes from an end of the second electrode and an end of the porous insulating layer at an end face of the electrode assembly. The protruding end of the first electrode has a part where the first electrode core member is exposed. The part where the first electrode core member is exposed is welded to the first current collector plate. The end of the porous insulating layer protrudes from an end of the first electrode mixture layer and an end of the second electrode mixture layer. The distance between the first current collector plate and the end of the porous insulating layer on the first current collector plate side is 3 mm or less. | 04-16-2009 |
20090136831 | BATTERY - A battery ( | 05-28-2009 |
20090136832 | ELECTRICAL ENERGY STORAGE CELL AND ELECTRICAL ENERGY STORAGE MODULE INCLUDING THE SAME - The storage cell comprises a flat roll electrode that includes a strip of positive electrode having a positive electrode current collector foil and a positive electrode layer formed thereon, a strip of negative electrode having an electrode current collector foil and a negative electrode layer formed, and a strip of electrically insulated separator, the strip of positive electrode and the strip of negative electrode being wound into a flat roll configuration with the strip of electrically insulated separator sandwiched therebetween; a sealed casing that hermetically seals the flat roll electrode impregnated with an electrolyte; a positive terminal and a negative terminal each electrically insulated from the sealed casing, connected to the positive current collector foil and the negative current collector foil, respectively. | 05-28-2009 |
20090142651 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery of the present invention includes a positive electrode plate | 06-04-2009 |
20090148756 | Lithium cell - A primary electrochemical cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS | 06-11-2009 |
20090162739 | ELECTROCHEMICAL STORAGE CELL - An electrochemical storage cell is disclosed that comprises a cathode sheet, an anode sheet, and a separator sheet between the cathode and anode sheets. A metal foil current collector extends from a longitudinal edge of the cathode sheet. A further metal foil current collector extends from a longitudinal edge of the anode sheet. The anode sheet, cathode sheet, and separator sheet are wound in a flattened coil shape to produce a core in which the metal foil current collector of the cathode sheet extends beyond the separator sheet at one end of the core and the metal current collector of the anode sheet extends beyond the separator sheet at an opposite end of the core. Overlying layers of the metal foil current collector of the cathode sheet are compressed together and placed in electrical communication with a positive terminal of the cell while overlying layers of the metal foil current collector of the anode sheet are compressed together and placed in electrical communication a negative terminal of the cell. | 06-25-2009 |
20090162740 | OPTIMIZED DIMENSIONAL RELATIONSHIPS FOR AN ELECTROCHEMICAL CELL HAVING A COILED CORE - An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length L | 06-25-2009 |
20090169979 | WOUND-TYPE ELECTROCHEMICAL DEVICE, AND METHOD FOR MANUFACTURING WOUND-TYPE ELECTROCHEMICAL DEVICE - The invention provides a wound-type electrochemical device capable of increasing the capacity. A wound-type electrochemical device comprises a wound body formed by winding a belt-like positive electrode and a belt-like negative electrode, each of the electrodes being a current collector having an active material layer formed on both sides thereof, so as to sandwich a belt-like separator therebetween, wherein both sides of an end on a center side of the wound body of the positive electrode adjoin the negative electrode via the separator, respectively, while both sides of an end on the center side of the wound body of the negative electrode adjoin the positive electrode via the separator, respectively. | 07-02-2009 |
20090176147 | Lithium Ion Secondary Battery - A lithium ion secondary battery which includes: a negative electrode plate | 07-09-2009 |
20090186263 | LITHIUM CELL - A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS | 07-23-2009 |
20090191448 | Battery Pack and Method For Producing The Same - A battery pack includes: a battery including a battery element covered with a packaging member, the battery element including a positive electrode and a negative electrode which are spirally wound together or stacked on one another through a separator; a protection circuit board for the battery; and a covering material collectively covering the battery and the protection circuit board. The covering material includes a shape-retaining polymer. The shape-retaining polymer contains an insulating curable polyurethane resin including polyol and polyisocyanate. | 07-30-2009 |
20090191449 | ALKALINE STORAGE BATTERY - An alkaline storage battery in which an actual reaction area is not reduced after increasing a reaction area is provided. A hydrogen storage alloy negative electrode | 07-30-2009 |
20090208825 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly and a secondary battery using the same, the electrode assembly including: first and second electrode plates, which are wound with a separator disposed therebetween; and first and second electrode tabs respectively adhered to the first and second electrode plates. The first electrode plate extends from a bottom surface of the electrode assembly, has a groove, and is bent at the groove. The secondary battery includes: the electrode assembly; a can to house the electrode assembly; and a cap assembly to seal the can. The first electrode tab is connected to the bottom of the can. | 08-20-2009 |
20090208826 | CYLINDRICAL SECONDARY BATTERY - A cylindrical secondary battery having improved performance in a compression test and a collision test. The cylindrical battery including a ceramic layer coated on at least one of a cathode plate and an anode plate, and a center pin having a wall thickness of 0.05 to 0.1 mm, which is inserted into the center of an electrode assembly of the battery. The ceramic layer can have a thickness of 6.0 μm to 8.0 μm. | 08-20-2009 |
20090214938 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery has a positive electrode ( | 08-27-2009 |
20090233160 | CYLINDRICAL SECONDARY BATTERY - A cylindrical secondary battery including: an electrode assembly including first and second electrode tabs; a can to house the electrode assembly; a cap assembly to seal an opening of the can; and an integrated assembly including a gasket, an insulation plate, and a central pin. An outer edge of the gasket is bent by the can, around an outer edge of the cap assembly. The insulation plate extends from the gasket, to cover a surface of the electrode assembly. The central pin extends from the center of the insulation plate, into the electrode assembly. | 09-17-2009 |
20090239133 | ROLLED ELECTRODE BATTERY AND MANUFACTURING METHOD THEREFOR - A rolled electrode battery includes a rolled electrode body including band-shaped positive and negative electrode plates formed individually with electrode active material layers, which are rolled with a band-shaped separator interposed between them and formed into a flat shape. Each of the electrode plates includes a band-shaped electrode portion formed with the electrode active material layer and contacting the separator and a side edge portion projecting from the separator and not formed with an electrode active material layer. The side edge portion forms lugs arranged at intervals along the lengths of the electrode plates. The positive and negative electrode plates are rolled in layers so that the lugs of the positive electrode plate are laminated to one another to form a positive electrode tab and that the lugs of the negative electrode plate are laminated to one another to form a negative electrode tab. | 09-24-2009 |
20090263707 | High Energy Lithium Ion Secondary Batteries - Lithium ion secondary batteries are described that have high total energy, energy density and specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. The improved batteries are based on high loading of positive electrode materials with high energy capacity. This capability is accomplished through the development of positive electrode active materials with very high specific energy capacity that can be loaded at high density into electrodes without sacrificing performance. The high loading of the positive electrode materials in the batteries are facilitated through using a polymer binder that has an average molecular weight higher than 800,000 atomic mass unit. | 10-22-2009 |
20090274951 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A nonaqueous electrolyte secondary battery includes an electrode group in which a positive electrode plate including a positive electrode active material formed on a positive electrode current collector and a negative electrode plate including a negative electrode active material formed on a negative electrode current collector are wound with a separator interposed therebetween, and a tensile elongation rate of the positive electrode plate is larger than a tensile elongation rate of the negative electrode plate. | 11-05-2009 |
20090291355 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY, NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THEM - The present invention provides a non-aqueous electrolyte battery, etc. that can reduce the manufacturing cost of the battery, meet the need for increased battery capacity, and at the same time improve various battery characteristics, such as high-rate charge-discharge capability, high-temperature cycle performance, and storage performance. | 11-26-2009 |
20090297929 | WINDING ELECTRODE BODY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING WINDING ELECTRODE BODY - A winding electrode body is provided which includes a belt-shaped positive electrode, a belt-shaped negative electrode, and two belt-shaped separators. In the above winding electrode body, the two separators are laminated with the positive electrode and the negative electrode are wound in the state that positive electrode and the negative electrode are interleaved by the intermediate portions of the two separators in the longitudinal directions thereof, start edges of the two separators extending past the intermediate portions are disposed to face each other in a free edge state at a position at which the positive electrode and the negative electrode are not provided, and end edges of the two separators extending past the intermediate positions are disposed and fixed to each other at a position at which the positive electrode and the negative electrode are not provided. | 12-03-2009 |
20090297930 | EXTERIOR MEMBER FOR BATTERY ELEMENT AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - An exterior member for a battery element includes: a first sheet piece made of a laminated sheet; a second sheet piece made of a laminated sheet; a bending part for partitioning the first sheet piece and the second sheet piece from each other; a sealing part which is formed by a peripheral part of the first sheet piece and a peripheral part of the second sheet piece corresponding to the peripheral part of the first sheet piece and which hermetically seals a battery element; and a thick-walled part formed so as to include at least a part of the bending part. | 12-03-2009 |
20090297931 | JELLY-ROLL TYPE ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab. | 12-03-2009 |
20090297932 | JELLY-ROLL TYPE ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly including a first electrode strip having a first electrode collector coated with at least a first electrode active material, an exposed portion of the first electrode collector attached with a first electrode tab; a second electrode strip having a second electrode collector coated with at least a second electrode active material and is rolled together with the first electrode strip, an exposed portion of the second electrode collector is attached with a second electrode tab; and at least one inter-electrode strip separator is positioned between the first and second electrode strips, wherein at least one sheet of protective separator, which is extended from the inter-electrode strip separator, is further positioned on a side of the first electrode strip attached with the first electrode tab. | 12-03-2009 |
20090305120 | SYSTEMS AND METHODS FOR RECHARGEABLE BATTERY COLLECTOR TAB CONFIGURATIONS AND FOIL THICKNESS - Systems and methods for configuring tabs on a rechargeable battery may include a current collector comprising one or more collector foil and one or more tabs connected to the collector foil for conveying generated current from the current collector. The tabs may be configured to extract greater capacity from the battery electrodes so that the resulting battery may exhibit higher performance. The tabs may be configured so that the length of the tab is greater than the height of the collector foil so the tab may cover the height of the collector foil and may protrude from the foil. | 12-10-2009 |
20090305121 | DOUBLE WINDING-TYPED ELECTRODE ASSEMBLY - Disclosed herein is a double winding type electrode assembly constructed in a structure in which a cathode and an anode are opposite to each other while a separator is disposed between the cathode and the anode, wherein the electrode assembly is manufactured by preparing a plurality of cell units, each cell unit having a cathode sheet and an anode sheet, of a predetermined size, wound, while a separator is disposed between the cathode sheet and the anode sheet, each cell unit being elliptical in section, and sequentially winding the cell units while arranging the cell units on a long separator sheet. | 12-10-2009 |
20090305122 | LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery capable of preventing an internal short-circuit due to application of possible vibrations without degradation of large-current discharge performance to ensure high reliability for a long time of use. | 12-10-2009 |
20090305123 | SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A secondary battery includes an electrode group | 12-10-2009 |
20090311585 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a positive electrode | 12-17-2009 |
20090317700 | Electrode assembly and secondary battery having the same - A secondary battery includes an electrode assembly designed to prevent an internal short circuit. The electrode assembly includes an electrode group formed by stacking and winding a first electrode plate, a separator and a second electrode plate, and a tape is attached to upper and lower parts of an end of the electrode group. An end of the separator is exposed externally, and the tape is attached to upper and lower parts of the end of the separator. Furthermore, a secondary battery having the electrode assembly is provided. | 12-24-2009 |
20090317701 | Electrode assembly and secondary battery having the same - A secondary battery includes an electrode assembly, an open-topped can accommodating the electrode assembly, and a cap assembly sealing the can. The electrode assembly includes a positive electrode plate having a positive electrode coated portion and positive electrode non-coating portions, a negative electrode plate having a negative electrode coated portion and negative electrode non-coating portions, and a separator interposed between the positive and negative electrode plates and wound with the electrode plates. The positive electrode non-coating portion has a region where the height of the positive electrode non-coating potion is lower than that of the positive electrode coating portions. | 12-24-2009 |
20090325045 | ELECTRODE PLATE FOR BATTERY, ELECTRODE GROUP FOR BATTERY, LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING ELECTRODE PLATE FOR BATTERY AND APPARATUS FOR PRODUCING ELECTRODE PLATE FOR BATTERY - An electrode plate includes a both-surface coated part | 12-31-2009 |
20100015510 | SEALED BATTERY - A sealed battery includes an electrode group formed by winding or stacking a positive electrode including a current collector carrying an active material layer thereon, a negative electrode including a current collector carrying an active material layer thereon and a separator interposed therebetween. The current collectors of the positive and negative electrodes are exposed at an end thereof and the exposed ends are welded to current collector terminals, respectively. The active material layers formed on the surfaces of the current collectors are covered with heat resistant porous films, respectively. An end face of the separator is flush with or positioned inside relative to end faces of the heat resistant porous films. The heat resistant porous films have a melting point higher than that of the separator and have a thermal conductivity lower than that of the current collectors. | 01-21-2010 |
20100015511 | High Capacity Battery Cell Employed with Two or More Unit Cells - Disclosed herein is a secondary battery including two or more stacking-folding type cells (‘unit cells’) manufactured by winding small-sized electrode assemblies (‘bicells’) constructed in a stacking type structure in which electrodes having the same polarity are located at opposite sides of each electrode assembly and small-sized electrode assemblies (‘full cells’) constructed in a stacking type structure in which electrodes having different polarities are located at opposite sides of each electrode assembly using a long separator sheet, wherein the unit cells are mounted in a battery case, each unit cell has one or more electrode terminals protruding from each end of each unit cell, and the unit cells are mounted in a receiving part of the battery case such that the unit cells are arranged in a stacking arrangement structure or a plane arrangement structure while the electrode terminals of the unit cells are connected with each other. According to the present invention, the electrical and physical coupling force between the unit cells is increased. Consequently, the high-capacity secondary battery according to the present invention exhibits an improved structural stability. In addition, it is possible to greatly increase the capacity of the secondary battery according to the present invention through a simple assembly process. | 01-21-2010 |
20100028762 | BATTERY - A battery includes an electrode assembly including a first electrode and a second electrode, a non-aqueous electrolyte, a battery case, a first lead connecting the first electrode with a bottom of the battery case, a seal member sealing an opening of the battery case, and a second lead connecting the second electrode with the seal member. At least one of the first lead and the second lead has a high resistant portion that has a higher resistance than the other portions per unit length. The high resistant portion is disposed at a position of the first lead closer to the first electrode than the portion connected to the bottom of the battery case or at a position of the second lead closer to the second electrode than the portion connected to the seal member. The high resistant portion is in contact with the battery case or the seal member. | 02-04-2010 |
20100035131 | ELECTROCHEMICAL DEVICE ENSURING A GOOD SAFETY - Disclosed is the structure of a center pin inserted into the winding center of a winding-type electrode assembly of an electrochemical device, which has a case containing the winding-type electrode assembly. The center pin can be manufactured through a simple process and can secure the safety of an electrochemical device when physical impact (e.g. squeezing, shock) is applied from the outside or when the internal temperature rises. The center pin is manufactured by winding a planar substrate, which has at least two protrusions formed in an embossing type or which has at least two scores formed in a predetermined shape, into a tubular shape. | 02-11-2010 |
20100035132 | Secondary battery - A secondary battery includes an electrode assembly in which a first electrode plate, a separator, and a second electrode assembly are sequentially stacked forming a stack and is wound about one edge of the stack, and a plurality of finishing tapes attached to the outer surface of the electrode assembly and spaced apart from each other along the winding direction of the electrode assembly. | 02-11-2010 |
20100040940 | ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD THEREOF - An electrode in sheet form includes a current collector and an electrode mixture layer carried on each side thereof. The electrode is bent in the longitudinal direction thereof, to cause a large number of cracks in at least the electrode mixture layer to be positioned on the inner side of the current collector when wound, such that the cracks extend from the surface of the electrode mixture layer to the current collector in the direction intersecting with the longitudinal direction of the electrode. This bending process includes the steps of: bending the electrode at a curvature that is smaller than that of the winding core at least once; and thereafter bending the electrode at a curvature that is equal to or larger than that of the winding core. For example, this process is performed by arranging rollers such that their diameters decrease gradually and pressing the electrode against these rollers. This invention provides an electrode that does not break when wound to form an electrode assembly. | 02-18-2010 |
20100055548 | Secondary Battery with a Spirally-Rolled Electrode Group - An electrode group E in which a positive electrode | 03-04-2010 |
20100068608 | BATTERY MODULE OF IMPROVED SAFETY AGAINST EXTERNAL IMPACT - Disclosed herein is a battery module including at least one battery cell constructed in a structure in which an electrode assembly of a cathode/separator/anode structure is mounted in a battery case such that electrode leads of the electrode assembly protrude outside, wherein, when external impacts are directly or indirectly applied to the battery cell, with the result that the electrode leads move toward the electrode assembly of the battery cell, the external impacts are absorbed by the deformation of the electrode leads or the deformation of predetermined regions (‘electrode lead facing parts’) of the module in direct contact with or adjacent to the electrode leads, whereby the occurrence of a short circuit due to the contact between the electrode assembly and the electrode leads is prevented. | 03-18-2010 |
20100068609 | HYBRID CELL CONSTRUCTION FOR IMPROVED PERFORMANCE - A hybrid lithium electrochemical cell comprising a spirally wound cathode, separator and anode in a generally cylindrical structure with the packaging materials and terminal structure of a pouch cell. The cell may also contain a welded metal grid outside the pouch cell packaging material to insure a cylindrical shape. The resultant hybrid cell features improved capacity and specific energy. | 03-18-2010 |
20100075210 | Hybrid-Typed Electrode Assembly of Capacitor-Battery Structure - Disclosed herein are a hybrid type electrode assembly including a plurality of electrode groups that can be charged and discharged, wherein the respective electrode groups are constructed in a structure in which a cathode and an anode are opposite to each other while a separator is disposed between the cathode and the anode, and at least one of the electrode groups is a capacitor type electrode group, and a secondary battery including the same. In the hybrid type electrode assembly according to the present invention, a coupled system of a capacitor and a secondary battery is embodied in a single cell through a simplified manufacturing process. Consequently, the present invention has the effect of reducing the manufacturing costs of the battery cell and improving the pulse charge and discharge characteristics without the degeneration of capacity. | 03-25-2010 |
20100081042 | SECONDARY BATTERY - An electrode body of a secondary battery is formed by superimposing a positive electrode and a negative electrode upon each other with a belt-shaped separator interposed between the electrodes, and rolling up the positive and negative electrodes and the separator into a spiral shape. At least one side edge of a positive electrode current collector of the positive electrode in the longitudinal direction thereof includes a plurality of step parts discontinuously formed in the longitudinal direction at unequal intervals, and extends at both sides of each step part with a deviation of 0.2 mm or more. At least one side edge of a negative electrode current collector of the negative electrode in the longitudinal direction thereof includes a plurality of step parts discontinuously formed in the longitudinal direction at unequal intervals, and extends on both sides of each step part with a deviation of 0.2 mm or more. | 04-01-2010 |
20100086837 | ENERGY DEVICE, METHOD FOR MANUFACTURING THE SAME, AND APPARATUS INCLUDING THE SAME - The present invention provides an energy device including a carbon nanotube electrode which prevents a carbon nanotube from peeling from an electric conductor. The energy device includes rolled electrode bodies, wherein at least one of the electrode bodies is formed such that a carbon nanotube layer is formed on the electric conductor, and concave regions are formed in a stripe shape on the carbon nanotube layer so as to extend in a direction parallel to a roll axis. | 04-08-2010 |
20100086838 | REFERENCE ELECTRODE, MANUFACTURING METHOD AND BATTERY COMPRISING SAME - A reference electrode having a casing with an inner cavity successively filled with a paste constituting an active material and a porous material impregnated with an electrolyte solution. The projecting end of a silver wire is embedded in the paste at the bottom of the inner cavity. The paste is constituted of a powder of a silver compound and of the alkaline electrolyte solution. The silver compound is any insoluble silver salt or oxide containing the negative ion of the electrolyte solution. The impregnated porous material is preferably constituted by a plurality of mat separator pieces mechanically and compressed by a closing plug, closing the inner cavity and forming a porous liquid junction. | 04-08-2010 |
20100104930 | JELLY-ROLL HAVING ACTIVE MATERIAL LAYER WITH DIFFERENT LOADING AMOUNT - Disclosed herein is a jelly-roll type electrode assembly (“jelly-roll”) of a cathode/separator/anode structure, wherein the jelly-roll is constructed in a structure in which each electrode has active material layers formed on opposite major surfaces of a sheet-type current collector, the loading amount of an active material for the inner active material layer, constituting the inner surface of each sheet when each sheet is wound, is less than that of an active material for the outer active material layer, constituting the outer surface of each sheet when each sheet is wound, and the loading amount of the active material for the inner active material layer gradually increases from the central region of each wound sheet to the outermost region of each wound sheet. | 04-29-2010 |
20100124694 | NONAQUEOUS ELECTROLYTE BATTERY, CUTTER AND METHOD OF MANUFACTURING ELECTRODE - A nonaqueous electrolyte battery includes a case, an electrode group, positive electrode tabs and negative electrode tabs. The electrode group comprises a positive electrode, a negative electrode and a separator. The positive electrode, the negative electrode and the separator are spirally coiled in a flat form. The positive electrode tabs are electrically connected to at least two positions among tab positions P | 05-20-2010 |
20100136393 | LITHIUM ION SECONDARY BATTERY - In a lithium ion secondary battery, a lithium-nickel-containing composite oxide that contains lithium and nickel is used as a positive electrode active material, and a negative electrode active material having a melting temperature of 1200° C. or less in a lithium-absorbed state is included in a negative electrode active material layer. By configuring as above, in the lithium ion secondary battery, it is possible to achieve higher capacity, higher output, and longer life, as well as further improved safety, and particularly in a nail penetration test, to suppress the heat generation due to internal short circuit and to reliably prevent the occurrence of thermal runaway. | 06-03-2010 |
20100136394 | SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A secondary battery includes an electrode plate group ( | 06-03-2010 |
20100143773 | LITHIUM SECONDARY BATTERY, SECONDARY BATTERY MODULE, AND SECONDARY BATTERY PACK - A lithium secondary battery having improved output power includes a plurality of wound electrode bodies in a battery can. Each wound electrode body is formed by winding a cathode and an anode with a separator placed the separator between the cathode and the anode. Each of the wound electrode bodies has a capacity of 1.5 Ah or less. The cathode includes a cathode current collector foil and cathode materials. End portions of the cathode are located on two end sides of the cathode current collector foil and include shorter sides of the cathode current collector foil, respectively. The active portion of the cathode has a cathode mixture deposited thereon and is sandwiched between the end portions. Cathode tabs extend from the end portions of the cathode current collector foil. The anode includes an anode current collector foil and anode materials, where both edges do not have an anode mixture. | 06-10-2010 |
20100143774 | RECHARGEABLE BATTERY AND ELECTRODE ASSEMBLY - A rechargeable battery includes an electrode assembly that includes a positive electrode, a negative electrode, a first bipolar electrode between the negative electrode and the positive electrode, and a second bipolar electrode between an outer surface of the electrode assembly and the positive electrode or between a center of the electrode assembly and the negative electrode, wherein the positive electrode, the negative electrode, and the first and second bipolar electrodes are stacked and wound together, and a lead electrically coupled with the electrode assembly. The electrode assembly may include separators between the positive electrode, the negative electrode, and the first and second bipolar electrodes. | 06-10-2010 |
20100151301 | BATTERY AND BATTERY PACK COMPRISING THE SAME - A battery and a battery pack including the battery. The battery includes: a frame; an electrode assembly disposed around the frame; a main body to house the electrode assembly; and electrode terminals extending from the electrode assembly in a first direction, through the main body. A cooling hole extends through opposing sides of the main body, in a second direction that is generally perpendicular to the first direction. | 06-17-2010 |
20100151302 | SECONDARY BATTERY, BATTERY ASSEMBLY, AND VEHICLE EQUIPPED WITH THE SECONDARY BATTERY - A secondary battery comprises a flat wound electrode body, a flat-type hard case housing the wound electrode body, and a film sandwiched between them. The film is formed with thick portions each of which is located at a boundary region between a flat portion and a curved portion of the surface of the wound electrode body. When a plurality of the secondary batteries are bound, therefore, load is applied widely on almost the entire wound electrode body, thereby enabling exertion of sufficient generation capability. Thus, a secondary battery with improved battery performance is provided in which load is sufficiently applied on an electrode body. The secondary battery can also be used as a battery assembly, a battery to be mounted on a vehicle, and a battery to be mounted on a battery mounting device. | 06-17-2010 |
20100151303 | High Discharge Capacity Lithium Battery - A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode. | 06-17-2010 |
20100167111 | CURRENT COLLECTOR FOR NON-AQUEOUS SECONDARY BATTERY, ELECTRODE PLATE FOR NON AQUEOUS SECONDARY BATTERY USING THE SAME, AND NON-AQUEOUS SECONDARY BATTERY - An object of the invention is to provide a current collector for a non-aqueous secondary battery in which the strength of the current collector is sufficient in forming an electrode plate and an active material can be efficiently disposed on the protrusions of the current collector, and to provide an electrode plate for a non-aqueous secondary battery and a non-aqueous secondary battery using the same. The invention relates to a current collector for a non-aqueous secondary battery, including a metal foil for carrying at least a positive electrode active material or negative electrode active material. Protrusions are formed in a predetermined arrangement pattern on at least one face of the metal foil and at least tops of the protrusions are not compressed. The arrangement pattern includes: a row direction in which the protrusions are aligned linearly at an equal pitch; and a column direction in which row units comprising a group of the protrusions aligned in the row direction are aligned in parallel at a predetermined interval. The respective protrusions of any one of the row units are displaced in the row direction from the protrusions of another row unit that is adjacent in the column direction. The invention also pertains to an electrode plate for a non-aqueous secondary battery and a non-aqueous secondary battery using the same. | 07-01-2010 |
20100167112 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery including: a positive electrode current collector; a positive electrode active material layer that is provided in contact with the positive electrode current collector; a separator layer that is provided on a side of the positive electrode active material layer on which the positive electrode current collector is not provided; a negative electrode active material layer that is provided on a side of the separator layer on which the positive electrode active material layer is not provided, that primarily contains silicon or tin, and that includes a opposing portion opposing the positive electrode active material layer and a non-opposing portion not opposing the positive electrode active material layer, the opposing portion and the non-opposing portion containing lithium produced by a thin film-forming method; and a negative electrode current collector that is provided on a side of the negative electrode active material layer on which the separator layer is not provided. Thereby, deformation of the negative electrode and deterioration in cycle characteristics accompanied by such deformation can be prevented. | 07-01-2010 |
20100167113 | RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly comprising a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode wound together and a case housing the electrode assembly, wherein the electrode assembly has an inner surface and an outer surface having a concave portion. | 07-01-2010 |
20100173184 | LITHIUM ION SECONDARY BATTERY - It has been found that when the potentials of the positive electrode and the negative electrode of the lithium ion secondary battery after the electrodes are short-circuited are each within a predetermined range, the battery produces high energy density. That is the present invention provides a lithium ion secondary battery having a positive electrode, a negative electrode and an electrolyte containing a lithium salt and an aprotic organic in which a positive electrode active material is a material allowing lithium ions and/or anions to be reversibly doped thereinto, and a negative electrode active material is a material allowing lithium ions to be reversibly doped thereinto, and the potentials of the positive electrode and the negative electrode after the positive electrode and the negative electrode are short-circuited are each selected to be within a range from 0.5 V to 2.0 V. | 07-08-2010 |
20100178541 | LITHIUM SECONDARY BATTERY - A lithium secondary battery having enhanced safety, which includes an electrode group, a non-aqueous electrolyte and a battery can for housing them. The electrode group includes: a positive electrode having a strip-shaped positive electrode current collector and a material mixture layer carried thereon; a negative electrode having a strip-shaped negative electrode current collector and a material mixture layer carried thereon; a separator; and a porous heat resistant layer. The positive and negative electrodes are spirally wound with the separator and the porous heat resistant layer interposed therebetween. An outermost surface of the electrode group includes an exposed portion of either of the positive and negative electrode current collectors. The exposed portion faces an inner surface of the battery can with the separator interposed therebetween, and has opposite polarity to that of the battery can. | 07-15-2010 |
20100203370 | Lithium cell with iron disulfide cathode - A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS | 08-12-2010 |
20100203371 | BATTERY - A battery ( | 08-12-2010 |
20100203372 | WIRE TYPE BATTERIES FOR WIRELESS CHARGE - The present invention relates to the wire type battery for wireless charging which is constructed by adding the coil for wireless charging to the wire type battery, by which the present invention can provide the wire type battery for wireless charging to easily carry out charging compared to the existing wire charging method and can solve the problem in the charging which is expected from the shape of the battery to improve the effect of charging. | 08-12-2010 |
20100203373 | BATTERY - A battery ( | 08-12-2010 |
20100209749 | SEALED SECONDARY BATTERY - A battery casing | 08-19-2010 |
20100209750 | BATTERY AND METHOD OF PRODUCING THE SAME - A battery includes an electrode body having a positive electrode and a negative electrode and also includes an exterior case for receiving the electrode body. An insulation film for isolating the exterior case and the electrode body from each other is placed between an inner wall surface of the exterior case and the electrode body. The insulation film has a bag-like shape in which the electrode body is inserted. The bag-like insulation film has a gap filling section on its surface facing a side surface of the electrode body, and the gap filling section closes a gap between the electrode body and the inner wall surface of the exterior case. | 08-19-2010 |
20100216000 | METHOD OF PRODUCING ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY - An active material layer | 08-26-2010 |
20100216001 | Rechargeable battery - A rechargeable battery including an electrode assembly including first and second electrode plates, each of which includes an electrode uncoated portion and a separator interposed between the first and second electrode plates, and at least one current collector plate, each current collector plate contacting one of the electrode uncoated portions of the first and second electrode plates, wherein each current collector plate includes a protrusion protruding toward the electrode assembly and having a contact portion contacting one of the electrode uncoated portions, and a slit in the contact portion disposed at a predetermined angle with respect to the direction of the electrode assembly. | 08-26-2010 |
20100216002 | FILM CASE TYPE ELECTRICITY STORAGE DEVICE - A film-case-type electricity storage device | 08-26-2010 |
20100221587 | WOUND-TYPE ELECTRIC STORAGE DEVICE - A positive electrode sheet including a positive electrode mixture layer formed on one surface is provided at one of the outermost layers of an electrode sheet group, while a positive electrode sheet including a positive electrode mixture layer formed at one surface is provided at the other outermost layer of the electrode sheet group. A negative electrode sheet including negative electrode mixture layers formed on both surfaces is provided between the positive electrode sheets. A lithium electrode sheet including metal lithium foils formed on both surfaces is overlapped onto the electrode sheet group formed by stacking the three sheets. When a wound-type electric storage device is produced, the electrode sheet group is wound together with the lithium electrode sheet. | 09-02-2010 |
20100221588 | High Discharge Capacity Lithium Battery - A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The positive electrode mixture containing the iron disulfide contains highly packed solid materials, with little space around the solid particles, to provide a high concentration of iron disulfide within the mixture. The separator is thin, to allow more space within the cell for active materials, yet strong enough to prevent short circuits between the positive and negative electrodes under abusive conditions, even when swelling of the cathode during cell discharge places additional stressed on the separator. As a result, the ratio of the interfacial capacity of the positive electrode to the electrode interfacial volume is high, as is the actual capacity on low rate/low power and high rate/high power discharge. | 09-02-2010 |
20100227207 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery having a high negative electrode energy density, good safety and high discharge characteristics is provided without damaging manufacturing facilities. The non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a porous heat-resistant layer interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode comprises a negative electrode current collector and a negative electrode mixture layer on a surface of the negative electrode current collector, and the negative electrode mixture layer has an active material density of 1.5 g/ml to 1.8 g/ml. The porous heat-resistant layer is carried on the negative electrode, and the porous heat-resistant layer comprises magnesium oxide particles having a mean particle size of 0.5 μm to 2 μm. | 09-09-2010 |
20100227208 | ELECTROCHEMICAL CELL HAVING QUASI-BIPOLAR STRUCTURE - Provided is an electrochemical cell having a quasi-bipolar structure, particularly, a case of the electrochemical cell in which an electrode assembly is accommodated. A reliable electrolyte isolation barrier wall is disposed between the case and the electrode assembly, and an electric connection part constructed using the case is provided for the electrochemical cell for voltage equalization. | 09-09-2010 |
20100227209 | ELECTROCHEMICAL CELL HAVING QUASI-BIPOLAR STRUCTURE - An electrolyte injection hole is formed in a current collector extension part between negative and positive active material layers of a quasi-bipolar electrode, and another electrolyte injection hole corresponding to the electrolyte injection hole of the quasi-bipolar electrode is formed in a sidewall of a hollow core around which the electrode is wound, so as to easily inject a predetermined amount of electrolyte into each unit cell of an electrode assembly through an electrolyte injection port and the core. Therefore, simple, reliable, and easy-to-manufacture electrochemical cell can be provided. | 09-09-2010 |
20100239897 | SECONDARY BATTERY - An electrode group is constructed by disposing a positive electrode current collector exposed portion on one end side and a negative electrode current collector exposed portion on the other end side. A positive electrode current collector terminal plate and a negative electrode current collector terminal plate are connected to the positive and negative electrode current collector exposed portions, respectively. A conductive coned disc spring is disposed compressed between the positive electrode current collector terminal plate and a sealing plate. The coned disc spring has a dead zone in which the elastic force does not change according to the amount of deformation, and urges the negative electrode current collector terminal plate toward a bottom portion of a battery case with a defined elastic force. | 09-23-2010 |
20100247989 | Rechargeable battery - A rechargeable battery including a case containing an electrode assembly, the electrode assembly having a coated region and an uncoated region, a lead member inside the case, the lead member surrounding at least a part of the uncoated region of the electrode assembly and having a first thickness, an electrode terminal connected to the lead member, and a current collecting plate having a second thickness that is thinner than the first thickness and coupled to the lead member and to the uncoated region. | 09-30-2010 |
20100247990 | BATTERY PACK - A battery pack | 09-30-2010 |
20100247991 | BATTERY AND METHOD FOR PRODUCING THE SAME - It is possible to ensure welding of an exposed portion of an electrode core member protruding from one end surface of an electrode group to a desired connection portion of a current collector plate by constituting a battery wherein an end portion of a first electrode is protruding from an end portion of a second electrode and an end portion of a separator on one end surface of an electrode group, the protruding end portion of the first electrode includes an exposed portion of a first electrode core member, the exposed portion of the first electrode core member is welded to a connection portion on one surface of the first current collector plate, and an insulating layer is formed in an area except for a reverse face portion of the connection portion on the other surface of the first current collector plate. | 09-30-2010 |
20100247992 | SEALED SECONDARY BATTERY, AND METHOD FOR MANUFACTURING THE BATTERY - An electrode group | 09-30-2010 |
20100247993 | Battery Electrodes - A cathode includes a foil current collector including a coating containing iron disulfide on one side that covers less than 100% of the side. | 09-30-2010 |
20100255356 | Electric storage device and its production method - When an electrode material having a weight-average mesopore/macropore specific surface area within a specific range is used, there arises an expansion of a cell caused by the generation of decomposed gas from a component of electrolyte solution during the pre-doping process of lithium ions. A potential drop upon the pre-doping process is adjusted so as to reduce or suppress the expansion of the cell. Specifically, since the pre-doping speed is increased, the negative electrode can speedily reach the potential by which an SEI component made of lithium alkyl carbonate can be produced on the surface of the negative electrode. Consequently, the absolute amount of the gas produced by the decomposition of the electrolyte solution can be reduced, whereby the expansion of the electric storage device can be reduced. | 10-07-2010 |
20100255357 | JELLY-ROLL OF STRUCTURE HAVING ELASTIC MEMBER ADHERED ON ACTIVE MATERIAL-NON-COATED PORTION AND SECONDARY BATTERY EMPLOYED WITH THE SAME - Disclosed herein are a winding type electrode assembly (‘jelly-roll’) constructed in a structure in which a cathode sheet and an anode sheet are wound in a circle while a separator is interposed between the cathode sheet and the anode sheet or the assembly is compressed in one direction after winding, wherein the jelly-roll includes an active material non-coated portion formed at the wound end of the jelly-roll, a conductive tape attached to the wound end of the jelly-roll for covering the wound outside of the jelly-roll including the active material non-coated portion, and an elastic member attached to the inside of the active material non-coated portion, the elastic member having a thickness equivalent to 50 to 200% of the height of an active material layer, and a secondary battery including the same. | 10-07-2010 |
20100255358 | CYLINDRICAL BATTERY AND MANUFACTURING METHOD THEREOF - The present invention mainly relates to a cylindrical battery provided with a wound-type electrode plate group, and to a manufacturing method thereof. An object of the present invention is to provide a manufacturing method by which a cylindrical battery can be produced at high productivity, without a welding electrode attaching to a current collector plate during connection of the current collector plate to a battery case. In the present invention, the maximum diameter of a hollow cylindrical portion of an electrode plate group is ⅙ or more and 2/6 or less of that of the electrode plate group; and a current collector having one first projection and a plurality of second projections are used. The one projection and the plurality of second projections are disposed on a face of the current collector plate facing an inner bottom face of the battery case, and protrude toward the inner bottom face side of the battery case. The height of the first projection is higher than that of the second projection. Further, the welding electrode used during connection of the current collector plate to the battery case has a maximum diameter of 60% or more and 100% or less of that of the hollow cylindrical portion of the electrode plate group, and is 4 mm. | 10-07-2010 |
20100266882 | Positive Electrode Mixture for Nonaqueous Battery and Positive Electrode Structure - A positive electrode mixture for nonaqueous batteries, is formed by adding 0.5 to 10 wt. parts of an organic acid per 100 wt. parts of an electroconductive additive, to a mixture of a composite metal oxide as a positive electrode active substance, a higher order-structured carbon black as the electroconductive additive, a binder of a fluorine-containing copolymer of at least three comonomers including vinylidene fluoride, tetrafluoroethylene and a flexibility-improving fluorine-containing monomer, and an organic solvent. Further, the mixture is applied on at least one side of an electroconductive sheet, and then dried and compressed to form a positive electrode mixture layer. As a result, it is possible to provide a positive electrode structure having a thick and sound positive electrode mixture layer of a high energy density. | 10-21-2010 |
20100273036 | Lithium-Iron Disulfide Cell Design with Core Reinforcement - A electrochemical cell design, with particular applicability to lithium-iron disulfide batteries, is disclosed. The cell includes a spirally wound electrode assembly with a central core. The core causes uniform expansion within the cathode. The core may also collapse and/or possess a cross sectional shape that differs from the cross sectional shape of the cylindrical container which houses the electrode assembly. | 10-28-2010 |
20100279158 | SECONDARY CELL AND ITS MANUFACTURING METHOD - A secondary battery includes an electrode group | 11-04-2010 |
20100279159 | Electrochemical Cell and Battery - The invention relates to an electrochemical single cell for a battery, and battery made from said single cells. The single cell comprises an electrode stack wound around a heat conducting bar and/or folded around a heat conducting bar. For the control of the single cell, the heat conducting bar is at least partly made from a highly heat-conductive material on the surface thereof turned towards the electrode stack and is formed as a solid. So as to ensure economical and simple temperature management of a battery, the heat conducting bar is connected to a temperature control unit in a heat conducting manner with the battery. | 11-04-2010 |
20100279160 | RECHARGEABLE SECONDARY BATTERY HAVING IMPROVED SAFETY AGAINST PUNCTURE AND COLLAPSE - A rechargeable battery according to embodiments of the present invention has improved safety against puncture and collapse. The secondary battery includes an electrode assembly, a case, a first electrode terminal and a second electrode terminal, a cap plate, and a short circuit member. The electrode assembly includes a first electrode, a separator, and a second electrode. The case contains the electrode assembly. The first electrode terminal and a second electrode terminal are electrically connected to the first electrode and the second electrode of the electrode assembly, respectively. The short circuit member extends from the end of one of the first electrode and the second electrode and is wound around the outermost periphery of the electrode assembly to short circuit the electrode assembly when the secondary battery is punctured or collapsed. | 11-04-2010 |
20100279161 | STACK AND FOLDING-TYPED ELECTRODE ASSEMBLY AND METHOD FOR PREPARATION OF THE SAME - Disclosed herein is a method of locating a plurality of pull cells constructed in a cathode/separator/anode structure, as basic units, on a separator sheet having a continuous length, further locating a unit electrode or a bi-cell on the separator sheet, and winding the pull cells and unit electrode or the bi-cell to continuously manufacture a stacking/folding type electrode assembly constructed in a structure in which anodes are located at the outermost electrodes forming the outside of the electrode assembly, respectively, wherein the method including a step of continuously supplying a cathode sheet, an anode sheet, a first separator sheet, and a second separator sheet, to manufacture the unit cells, successively arranging the unit cells on the second separator sheet from a first stage to an n stage, and winding the unit cells, a step of arranging cathode tabs and anode tabs at the respective stages, while the cathode tabs and the anode tabs are opposite to each other, and arranging electrode tabs having the same polarity between the neighboring stages, while the electrode tabs are opposite to each other, such that the electrode tabs having the same polarity are located all together at predetermined positions of the wound electrode assembly, and a step of supplying electrodes the number of which is odd from two electrode sheets and electrodes the number of which is even from one electrode sheet. | 11-04-2010 |
20100279162 | ELECTRIC ENERGY STORAGE DEVICE AND METHOD OF MANUFACTURING THE SAME - Provided is an electric energy storage device including: a terminal block for external connection ( | 11-04-2010 |
20100285341 | PREPARATION PROCESS FOR PREVENTING DEFORMATION OF JELLY-ROLL TYPE ELECTRODE ASSEMBLY - Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28. | 11-11-2010 |
20100285342 | BATTERY HAVING ENHANCED ELECTRICAL INSULATION CAPABILITY - Disclosed is a battery including a cathode in which cathode active-material coating layers provided on both surfaces of a cathode collector are longitudinally deviated from each other, and an anode having at least one anode active-material coating layer provided on an anode collector, the cathode and anode being wound to face each other with a separator interposed therebetween. At least one of a winding beginning portion and winding ending portion of the cathode is provided with a cathode uncoated part for installation of a cathode lead. An insulator tape is attached to the boundary of the cathode active-material coating layer at a position where the anode active-material coating layer faces a non-coating part of the cathode not containing the cathode active-material coating layer, achieving enhanced electrical insulation capability and consequential safety of the battery. | 11-11-2010 |
20100291424 | LiFeS2 Battery with Mixed Salt Electrolyte - An nonaqueous electrolyte blend for improved low temperature performance in lithium-iron disulfide cells is contemplated. The electrolyte has at least two solutes, including lithium iodide, wherein the lithium iodide is present at a concentration of 0.26 to 0.45 moles per liter of solvent and wherein the overall concentration of solutes is between 0.40 and 0.75 moles of total solute per liter of solvents. The solvents include DIOX and DME provided at a ratio of DIOX:DME between 50:50 and 70:30, and the solvents must include at least 80 volume percent of ethers. | 11-18-2010 |
20100291425 | SECONDARY BATTERY - A battery that can secure the sufficient capacity, reduces deviation of the pressure distribution inside a spirally wound electrode body, and shows the superior charge and discharge characteristics is provided. The battery includes: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead jointed to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body. | 11-18-2010 |
20100304196 | Secondary Electrochemical Cell - The invention provides a cylindrical electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to the first electrode, and an electrolyte. The first electrode includes a polyanion-based electrode active material. | 12-02-2010 |
20100304197 | Flexible foil prismatic battery having improved volumetric efficiency - A (e.g., 12-volt) lead acid battery having prismatic and wound prismatic battery cells that are arranged relative to one another within a standard battery casing to avoid wasted space whereby to improve the overall volumetric efficiency of the battery relative to conventional batteries having thick grids or cylindrical cell configurations. According to a first preferred embodiment, each battery cell includes a plurality of cathode and anode electrode plates, wherein each plate is manufactured from an electrically-conductive flexible foil covered on opposite sides thereof by one of a positively or negatively charged material. According to a second preferred embodiment, each battery cell includes flexible, electrically-conductive cathode and anode electrodes that are prismatically wound in an oval (i.e., flat) configuration, such that the battery cell is longer along the major axis thereof than along the minor axis. The batteries of this invention are capable of increasing their stored energy capability and maximizing their power performance by avoiding unused or wasted volume within the battery casing so as to improve the stored energy capacity and cold-cranking power. | 12-02-2010 |
20100304198 | ELECTRODE ASSEMBLY FOR SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - An electrode assembly for a secondary battery and a method of manufacturing the same are disclosed. The electrode assembly includes a first separator wound to form a plurality of stacked first separator members; a second separator wound with the first separator to form a plurality of stacked second separator members to be respectively positioned between the first separator members; and a plurality of electrode members positioned between the first separator members and the second separator members. An inner surface of one of the first separator members positioned at the innermost side and an inner surface of one of the second separator members positioned at the innermost side face each other. | 12-02-2010 |
20100304199 | SECONDARY BATTERY AND METHOD FOR MANUFACTURING SECONDARY BATTERY - An electrode group | 12-02-2010 |
20100310910 | Lithium-Iron Disulfide Cell Design - A lithium-iron disulfide electrochemical cell design is disclosed, relying on judicious selection of the electrolyte, a thicker lithium anode and a cathode with specific characteristics selected to cooperate with the electrolyte. The resulting cell has a reduced interfacial surface area between the anode and the cathode but, surprisingly, maintains excellent high drain rate capacity. | 12-09-2010 |
20100310911 | BATTERY PACK - A battery pack includes a plurality of batteries, each including a battery element formed by winding or stacking a positive electrode and a negative electrode with a separator therebetween, and a packaging material packaging the battery element; a connecting member that electrically connects the batteries to form a battery group; a holding unit that holds the batteries together; a protection circuit substrate connected to the battery group; and an outer packaging member that integrally covers the battery group and the protection circuit substrate, the outer packaging member being formed by filling a space in a molding die housing the battery group and the protection circuit substrate with a resin and curing the resin at a temperature of 100° C. or less. | 12-09-2010 |
20100310912 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly of a secondary battery includes an electrode group including a first electrode plate, a separator, and a second electrode plate that are stacked and wound, and a finishing tape attached to a predetermined region of a terminal portion of the electrode group. The finishing tape satisfies the equation Y | 12-09-2010 |
20100310913 | Rechargeable battery and method of manufacturing the same - A rechargeable battery and method of manufacturing the same, the rechargeable battery including an electrode assembly including a spirally wound separator, positive electrode, and negative electrode, a case housing the electrode assembly, a cap plate including a terminal hole and sealing an opening in one side of the case, an electrode terminal in the terminal hole of the cap plate and extending inwardly inside the case and outwardly from the case, and a lead tab having one side connected to the electrode terminal inside the case and another side connected to the electrode assembly, the lead tab including silver (Ag). | 12-09-2010 |
20100316896 | BATTERY FOR WIRELESS MOBILE COMMUNICATION DEVICE - A battery, comprising a case, an electrode assembly within the case, wherein the electrode assembly includes a positive electrode and a negative electrode, and positive and negative conductors electrically connected to the positive and negative electrodes, respectively, at a substantially similar point on the respective electrode assembly such that current flows in opposite directions through the positive and negative electrodes. The positive and negative conductors are closely routed so as to be aligned and in close proximity. As a result, magnetic fields generated by the positive and negative electrodes and the positive and negative conductors are substantially cancelled. | 12-16-2010 |
20100316897 | SECONDARY BATTERY - A secondary battery has a so-called tabless structure. An electrode group ( | 12-16-2010 |
20100316898 | LITHIUM-ION BATTERY - A lithium-ion battery includes a positive electrode having a first active material and a second active material and a negative electrode including a third active material. The second active material includes a lithiated form of a material that does not include electrochemically cyclable lithium in the as-provided state. | 12-16-2010 |
20100330405 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - [Purpose] A purpose of the present invention is to provide a nonaqueous electrolyte secondary battery with high safety in which breakage of a positive electrode plate and buckling of a negative electrode plate are reduced during charging and discharging. | 12-30-2010 |
20110008660 | Lithium-Iron Disulfide Cathode Formulation Having Pyrite Content and Low Conductive Additives - The invention relates to primary electrochemical cells having a jellyroll electrode assembly that includes a lithium-based negative electrode, a positive electrode with a coating comprising iron disulfide deposited on a current collector and a polymeric separator. More particularly, the invention relates to a cell designs and cathode formulations incorporating specific types of conductors to improve cell performance. | 01-13-2011 |
20110008661 | LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A lithium ion secondary battery of the invention includes an electrode structure including an electrode group composed of a strip-shaped laminate or winding including a positive electrode in which a positive electrode active material layer is attached to a positive electrode current collector, a negative electrode, and a separator; a positive electrode current collector plate including aluminum foil; and a negative electrode current collector plate electrically connected to the negative electrode. The positive electrode has, at one longitudinally extending end edge of the laminate, a positive electrode current collector-exposed portion protruding beyond the negative electrode. The positive electrode current collector plate is electrically connected to the positive electrode by applying a non-corrosive flux containing a fluoride to at least one of the positive electrode current collector-exposed portion and the positive electrode current collector plate, and then welding the positive electrode current collector plate to the positive electrode current collector-exposed portion. | 01-13-2011 |
20110008662 | POSITIVE ELECTRODE FOR NONAQUEOUS BATTERY, ELECTRODE GROUP FOR NONAQUEOUS BATTERY AND METHOD FOR PRODUCING THE SAME, AND RECTANGULAR NONAQUEOUS SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A positive electrode for a nonaqueous battery includes a double-coated part ( | 01-13-2011 |
20110014508 | Nickel Metal Hydride Rechargeable Battery And Method For Manufacturing Negative Electrode Thereof - A nickel metal hydride rechargeable battery has a closed-end tubular container containing a spiral-shaped electrode assembly formed by winding a negative electrode ( | 01-20-2011 |
20110014509 | RECHARGEABLE BATTERY - A rechargeable battery. A non-coating portion of an electrode plate, a coating portion of another electrode plate corresponding to the non-coating portion, and a separator are separated from each other through an insulating member to prevent a burr generated at the non-coating portion of the electrode plate from damaging the separator. Thus, the thickness of the separator can be reduced to improve battery capacity and reduce manufacturing costs. | 01-20-2011 |
20110014510 | ELECTRODE GROUP FOR NONAQUEOUS BATTERY AND METHOD FOR PRODUCING THE SAME, AND CYLINDRICAL NONAQUEOUS SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A positive electrode | 01-20-2011 |
20110020679 | WINDING TYPE BATTERY AND METHOD FOR MANUFACTURING THE WINDING TYPE BATTERY - Disclosed is a winding type battery comprising a center pin, and a wound power generation element formed by interposing a first separator in one interspace between a positive electrode plate and a negative electrode plate, interposing a second separator in another interspace between the positive electrode plate and the negative electrode plate, fixing the first and second separators to the center pin and then winding in one direction. Also disclosed is a method for manufacturing a winding type battery. A winding type battery belongs to batteries demand of which is increasing recently. A center pin of an inventive winding type battery is provided with an inside clamp portion and an outside clamp portion, portions to be clamped of first and second separators are clamped between the inside and outside clamp portions while being extended in the forward winding direction, and then the first separator is touched along the outside clamp portion. | 01-27-2011 |
20110027635 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - The nonaqueous electrolyte secondary battery of the invention includes: a wound-type electrode group including a long positive electrode, a long negative electrode, and a separator disposed between the positive electrode and the negative electrode; a nonaqueous electrolyte; and a prismatic battery case accommodating the electrode group and the nonaqueous electrolyte. A horizontal cross-section of the electrode group has a major axis and a minor axis. The positive electrode includes a positive electrode current collector and a positive electrode active material layer disposed thereon, and the negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed thereon. A tensile strength of the positive electrode when an elongation percentage in a longitudinal direction of the positive electrode is 1% is not greater than 15 N/cm. | 02-03-2011 |
20110027636 | BATTERY HAVING ENHANCED ELECTRICAL INSULATION CAPABILITY - Disclosed is a battery including a cathode and an anode wound to face each other with a separator interposed therebetween. Both surfaces of a cathode collector are provided with cathode active-material coating layers so as not to provide a cathode uncoated part at a winding beginning portion of the cathode. The cathode uncoated part for installation of a cathode lead is provided only at a winding ending portion of the cathode. An insulator tape is attached to the boundary of the cathode active-material coating layer facing the anode at the winding ending portion of the cathode. Providing the insulator tape to the boundary of the cathode active-material coating layer at a position where a non-coating part not containing the cathode active-material coating layer and an anode active-material coating layer face each other achieves enhanced electrical insulation capability and consequential safety of the battery. | 02-03-2011 |
20110033737 | ELECTRODE GROUP FOR NONAQUEOUS BATTERY AND METHOD FOR PRODUCING THE SAME, AND CYLINDRICAL NONAQUEOUS SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - An electrode group for a nonaqueous battery includes a positive electrode ( | 02-10-2011 |
20110039138 | Electrode plate of secondary battery and secondary battery having the same - An electrode plate for a secondary battery includes a collector having a coated portion on which an active material is coated; and an uncoated portion extending in a longitudinal direction along one or both sides of the coated portion, the uncoated portion having at least four crystalline directions. | 02-17-2011 |
20110039139 | METHOD OF MANUFACTURING NICKEL ZINC BATTERIES - Methods of manufacturing a rechargeable power cell are described. Methods include providing a slurry or paste of negative electrode materials having low toxicity and including dispersants to prevent the agglomeration of particles that may adversely affect the performance of power cells. The methods utilize semi-permeable sheets to separate the electrodes and minimize formation of dendrites; and further provide electrode specific electrolyte to achieve efficient electrochemistry and to further discourage dendritic growth in the cell. The negative electrode materials may be comprised of zinc and zinc compounds. Zinc and zinc compounds are notably less toxic than the cadmium used in NiCad batteries. The described methods may utilize some production techniques employed in existing NiCad production lines. Thus, the methods described will find particular use in an already well-defined and mature manufacturing base. | 02-17-2011 |
20110039140 | POSITIVE ELECTRODE FOR NONAQUEOUS BATTERY, ELECTRODE GROUP FOR NONAQUEOUS BATTERY AND METHOD FOR PRODUCING THE SAME, AND RECTANGULAR NONAQUEOUS SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A positive electrode | 02-17-2011 |
20110052952 | ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY HAVING AN ELECTRODE ASSEMBLY - An electrode assembly and a rechargeable battery having an electrode assembly. An electrode assembly for a rechargeable battery includes a first electrode; a second electrode; a first separator between the first electrode and the second electrode, the first separator having a plurality of first pores, each of the first pores elongated in a first direction; and a second separator on an opposite side of the first electrode from the first separator, the second separator having a plurality of second pores, each of the second pores elongated in a second direction crossing the first direction. | 03-03-2011 |
20110052953 | NEGATIVE ELECTRODE, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A negative electrode includes: a negative electrode collector; and a negative electrode active material layer covering at least one principal plane of the negative electrode collector and containing at least a negative electrode active material, wherein the negative electrode active material contained in a region of up to at least 50% of a thickness from the surface of the negative electrode active material layer is covered with a solid electrolyte interface coating, and the solid electrolyte interface coating contains a product with a crosslinked isocyanate group in an isocyanate compound. | 03-03-2011 |
20110052954 | BATTERY, METHOD OF MANUFACTURING THE SAME AND NON-AQUEOUS SECONDARY BATTERY USING THE SAME - To provide an electrode plate capable of retaining a larger amount of active material and having a composite material layer uniform in thickness, a positive electrode plate ( | 03-03-2011 |
20110059343 | HEAT SEALING SEPARATORS FOR NICKEL-ZINC CELLS - Embodiments are described in terms of selective methods of sealing separators and jellyroll electrode assemblies and cells made using such methods. More particularly, methods of selectively heat sealing separators to encapsulate one of two electrodes for nickel-zinc rechargeable cells having jellyroll assemblies are described. Selective heat sealing may be applied to both ends of a jellyroll electrode assembly in order to selectively seal one of two electrodes on each end of the jellyroll. | 03-10-2011 |
20110059344 | PRISMATIC CELL - This cell comprises an electrode unit | 03-10-2011 |
20110064980 | CATHODIC ACTIVE MATERIAL , CATHODE, AND NONAQUEOUS SECONDARY BATTERY - A cathodic active material according to the present invention has a composition represented by general formula (1): | 03-17-2011 |
20110070471 | RECHARGEABLE BATTERY - The present invention relates to a rechargeable battery that can use a negative electrode active material having a high volume expansion rate by receiving volume variation of an electrode assembly in a case. The rechargeable battery according to the present invention includes i) an electrode assembly including a positive electrode plate, a negative electrode plate, and a separator that are wound in a jelly roll shape to have a flat portion and curved portions disposed at both sides of the flat portion, ii) a case for receiving the electrode assembly, and iii) a cap assembly combined with the case to close and seal the case and that is electrically connected to the electrode assembly. When a direction that is perpendicular to a surface of the separator disposed in the flat portion is set to a first direction, the thickness of the flat portion measured along the first direction is smaller than the maximum thickness of the curved portion measured along the first direction. | 03-24-2011 |
20110076532 | SECONDARY BATTERY - A secondary battery includes an electrode assembly formed by winding a first electrode plate, a second electrode plate and a separator. The first and second electrode plates are connected to first and second electrode tabs at one side and another side of the electrode assembly, respectively. The separator is interposed between the first and second electrode plates. A can has one opened portion to accommodate the electrode assembly, and a cap assembly seals the opened portion of the can. In the secondary battery, at least one of the first and second electrode tabs includes a drawing portion protruding upward from the first or second electrode plate and a bonding portion formed by bending one region of the drawing portion to be attached to the cap assembly, and a length of the bonding portion is formed longer than a width of the drawing portion. | 03-31-2011 |
20110076533 | SECONDARY BATTERY - A secondary battery in which a fixing tape is attached to an electrode assembly, a positive electrode tab, a negative electrode tab, and a cap plate without use of an insulating case to prevent the electrode assembly from vibrating. The secondary battery includes an electrode assembly including a positive electrode plate to which a positive electrode tab is coupled, a negative electrode plate to which a negative electrode tab is coupled, and a separator interposed between the positive electrode plate and the negative electrode plate, a can having an opened part on one side to accommodate the electrode assembly, a cap assembly sealing the opened part of the can, and a fixing tape continuously attached from the electrode assembly to a bottom surface of the cap assembly while being attached to the positive electrode tab and the negative electrode tab. | 03-31-2011 |
20110076534 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery | 03-31-2011 |
20110076535 | SECONDARY BATTERY AND SECONDARY BATTERY MANUFACTURING METHOD - In a secondary battery, for providing a structure which can enable a welding operation even when a gap is formed between a current collecting plate and a winding assembly, recessed portions are formed in a positive current collecting plate. The recessed portions are disposed opposite to the winding assembly. A laser beam is irradiated to welding protrusions located between the recessed portions to melt the welding protrusions. Here, since the end surface of a positive electrode foil is uneven in height, the positive electrode foil does not contact the positive current collecting plate necessarily. The welding operation is performed by heating, melting, and dropping the welding protrusions by the use of a YAG laser under the welding condition of a laser power of 900 W and a welding speed 2 m/min. | 03-31-2011 |
20110081565 | Cylindrical secondary battery including center pin having improved structure - A cylindrical secondary battery including a center pin having an improved structure is disclosed. The center pin is disposed into a central opening of an electrode assembly of the cylindrical secondary battery. One end portion of the center pin has a larger diameter than a central opening of an electrode assembly, and the center pin is tapered from the one end portion to another end portion of the center pin. The center pin is forcibly pushed into the central opening of the electrode assembly. Because the center pin is coupled by forced insertion with the central opening of the electrode assembly, movement of the center pin is suppressed and noise generation is prevented. | 04-07-2011 |
20110081566 | CYLINDRICAL BATTERY AND METHOD OF MANUFACTURING THE SAME - A circular cylindrical battery and a method of manufacturing the circular cylindrical battery, wherein air can be more smoothly released in liquid charging operation in a manufacturing process of the battery. A circular cylindrical battery is formed by sealing an electrode wound body in a cylindrical case and has an outer terminal member mounted to one end of the battery so as to axially penetrate through a gasket. A neck is formed at the inner surface of the cylindrical case. A flange having an outer diameter greater than the inner diameter of the neck is formed on the outer terminal member. The gasket has a cylindrical portion and collar portions. To mount the outer terminal member to the cylindrical case, the gasket is mounted to the flange, liquid is charged from a through-hole with the flange held in a temporarily sealed state in which the flange is pressed into the cylindrical case until being in contact with the neck, and after that an end portion of the cylindrical case is bent to the inner surface side thereof. The bent section presses the collar portion to the flange to complete sealing. | 04-07-2011 |
20110086254 | Lithium-Iron Disulfide Cell Design - The invention relates to primary electrochemical cells having a jellyroll electrode assembly that includes a lithium-based negative electrode, a positive electrode with a coating comprising iron disulfide deposited on a current collector and a polymeric separator. More particularly, the invention relates to a cell design which optimizes cell capacity and substantially eliminates premature voltage drop-off on intermittent service testing. The resulting cell has a region of increased lithium thickness proximate to/under the terminal end of the outermost edge of the cathode strip. | 04-14-2011 |
20110091753 | Rechargeable lithium ion button cell battery - A rechargeable lithium ion button cell battery having a sealed housing comprises an inner casing and an outer casing, both casings have at least one flat area as top or bottom of the battery, and a round or oval side wall vertically formed to the flat area. Said side walls are single wall not folded double walls. An insulation gasket is positioned between said side walls, and the outer casing opening is mechanically crimped to complete the seal of the battery. Inside the sealed housing the anode & cathode electrodes are spiral wound with separator to be a round or oval roll. Said roll axis is vertical to the said flat areas of the casings. The two electrodes are tapered in width and comprise current collectors of metal foils coated with lithium-intercalating active materials, leaving small area of uncoated metal foils as welding tabs for connecting to the casings. The tabs are welded to the casings respectively, or for the tab of the electrode which connecting to outer casing, welded to an aluminum flake first and said flake is pressed on the outer casing by said gasket. Two insulation washers could be applied to inner side of the casings to prevent short circuit. Such battery has high energy density, low impedance, high reliability and long cycle life. | 04-21-2011 |
20110091754 | NEGATIVE ELECTRODE FOR NONAQUEOUS BATTERY, ELECTRODE GROUP FOR NONAQUEOUS BATTERY AND METHOD FOR PRODUCING THE SAME, AND CYLINDRICAL NONAQUEOUS SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A negative electrode | 04-21-2011 |
20110091755 | Battery module, method of fabricating the same, and vehicle having battery module - Each of battery cells ( | 04-21-2011 |
20110091756 | LITHIUM ION BATTERY AND ELECTRODE WOUND BODY FOR LITHIUM ION BATTERY - In a lithium ion battery, including: a battery case; and a wound electrode body formed by attaching an unwinding prevention tape to a circumference of a wound electrode structure which is formed by winding a laminate of a tape-form negative electrode and a tape-form positive electrode together with a tape-form separator interposed therebetween, and a non-aqueous electrolytic solution, sealed up together within the battery case; the unwinding prevention tape is formed of a composite material of a vinylidene fluoride resin and an aromatic polyester resin. As a result, it is possible to provide a lithium ion battery which can stably prevent the unwinding of the wound electrode structure and a decrease of power even under a high-temperature service condition as encountered in a large-power use, and also such a wound electrode body for the lithium ion battery. | 04-21-2011 |
20110097615 | BATTERY CELL OF CURVED SHAPE AND BATTERY PACK EMPLOYED WITH THE SAME - The present invention relates to a battery cell which is housed in a variable state cell case in which a pole assembly having an anode/separating film/cathode laminate configuration is impregnated with an electrolytic solution. The pole assembly and the cell case are curved together in the same direction at both their ends relative to their central parts in vertical cross section in the axial direction, and they provide a battery cell having a configuration whereby they are curved in a single plane. When such a battery cell is installed in a device having a curved appearance in a single plane or is installed in a location which is curved in a single plane on the inside of a device, there are advantages in that it is efficient, can minimise waste in the space required because of the intimately fined configuration, and it allows the development of devices which have an aesthetically pleasing appearance and which have a diversity of design tailored to consumer preferences. | 04-28-2011 |
20110104536 | ELECTRODE FOR ENERGY STORAGE MEANS - An energy storage unit, such as a galvanic cell, is composed of a first electrode ( | 05-05-2011 |
20110104537 | Current collecting plate and secondary battery including current collecting plate - A secondary battery includes an electrode assembly including a positive electrode, a negative electrode, and separators which are wound together, current collecting plates attached to the electrode assembly, a case configured to accommodate the electrode assembly and the current collecting plates, and a cap configured to cover an opening of the case and electrically connect to the current collecting plates. Each of the current collecting plates includes a current collecting part and a welding part. The current collecting parts electrically connect to the electrode assembly. The welding part is welded to the electrode assembly and the current collecting part. | 05-05-2011 |
20110104538 | Cylindrical secondary battery including a cap-up - A cylindrical secondary battery including a cap-up in which a surface region of the cap-up that is to be connected to an external device is partially coated with an insulating agent. Due to the structure of the cap-up, an unusual discharge caused due to an unusual contact of the cap-up with an external conductor, or a short between a positive electrode and a negative electrode of the secondary battery may be prevented. | 05-05-2011 |
20110104539 | LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD FOR SAME - A lithium secondary battery includes: a first electrode having a first current collector, and first active material patterns formed on the first current collector such that the first active material patterns are symmetrically disposed with a first center non-coated portion formed therebetween; a second electrode having a second current collector, and second active material patterns formed on the second current collector such that the second active material patterns are symmetrically disposed with a second center non-coated portion formed therebetween; a first electrode tab connected to the first center non-coated portion; and a second electrode tab connected to the second center non-coated portion. | 05-05-2011 |
20110104540 | RECHARGEABLE BATTERY - A rechargeable battery is disclosed. In one embodiment, the battery includes i) a current collecting plate, ii) a plurality of electrode assemblies electrically connected in parallel with each other via the current collecting plate, wherein each of the electrode assemblies comprises two opposing ends and an outer side formed between the two ends, and wherein the current collecting plate is electrically connected to one of the two ends of the electrode assemblies. The battery may further includes 1) a spacer and 2) a can configured to accommodate i) the current collecting plate, ii) the plurality of electrode assemblies and iii) the spacer, wherein the spacer is positioned i) between adjacent electrode assemblies and/or ii) between an inner surface of the can and at least one of the electrode assemblies, and wherein the spacer comprises at least one non-linear portion which contacts the outer side of at least one of the electrode assemblies. | 05-05-2011 |
20110104541 | SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SECONDARY BATTERY - A secondary battery and a method of manufacturing the secondary battery. A secondary battery includes an electrode assembly formed through winding a positive electrode plate including a positive electrode non-coating portion, a negative electrode plate including a negative electrode non-coating portion, and a separator between the positive and negative electrode plates. A part of the positive electrode non-coating portion and a part of the negative electrode non-coating portion are removed to form a positive electrode tab and a negative electrode tab at first and second ends, respectively, of the electrode assembly. | 05-05-2011 |
20110111275 | BATTERY - A battery ( | 05-12-2011 |
20110111276 | ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An electrode plate for a nonaqueous electrolyte secondary battery includes: a current collector made of metal foil in the shape of a band; a mixture layer containing an active material and provided on each surface of the current collector; and an extension lead connected to the current collector. The current collector has an exposed portion having first and second surfaces on each of which the mixture layer is not provided. The exposed portion extends perpendicularly to a longitudinal direction of the current collector. The extension lead is connected to the first surface of the exposed portion. A portion of the first surface on which the mixture layer is not provided has a width larger than that of a portion of the second surface on which the mixture layer is not provided. | 05-12-2011 |
20110111277 | CURRENT COLLECTOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PRODUCTION METHODS THEREOF, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A current collector includes a metal foil and protrusions formed on one face or both faces of the metal foil in a predetermined arrangement. The protrusions are substantially rhombic and aligned in a zigzag. Also, both end portions of each protrusion in each of two orthogonal axial directions protrude outward. Middle portions between the end portions are recessed inward. When columnar blocks of an active material are formed on the protrusions to form an active material layer, the gaps between the protrusions can be increased at portions where the interval between the protrusions is the smallest. As a result, internal stress of the active material layer created by charge/discharge of the battery can be alleviated, and the battery life can be increased. | 05-12-2011 |
20110117402 | Battery module - A battery including a battery case, an electrode assembly in the battery case, the electrode assembly including a plurality of windings that are wound about a winding axis, the winding axis being oriented parallel to a bottom surface of the battery case, and a deformable member between the electrode assembly and the bottom surface of the battery case, the deformable member being pressed between the electrode assembly and the bottom surface of the battery case. | 05-19-2011 |
20110117403 | Battery Cell with a Center Pin Comprised of a Low Melting Point Material - A battery is provided that includes a cell case, an electrode assembly and a center pin within the electrode assembly, where the electrode assembly is wrapped around the center pin, and where the center pin is comprised of a material that is rigid within the normal operating temperature range of the battery and deforms, and/or melts, when the battery temperature exceeds the normal operating temperature range of the battery. | 05-19-2011 |
20110117404 | Lithium Polymer Secondary Battery - A secondary battery includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a first electrode terminal electrically coupled to the first electrode plate and a second electrode terminal electrically coupled to the second electrode plate; an external member wrapped around side surfaces of the electrode assembly; and a first cover and a second cover coupled to the external member and covering a first end surface and a second end surface, respectively, of the electrode assembly, wherein the first electrode terminal and the second electrode terminal protrude from at least one of the first cover or the second cover. | 05-19-2011 |
20110117405 | SECONDARY BATTERY INCLUDING ELECTRODE ASSEMBLY HAVING EXCELLENT JELLY ROLL STRUCTURE - A secondary battery including an electrode assembly comprises: an outermost electrode an electrode assembly comprising an outermost electrode, an inner electrode, and a separator disposed between the outermost and inner electrodes, wherein the outermost electrode, the inner electrode and the separator are wound together; a case that accommodates the electrode assembly; and a cap assembly coupled to the case, wherein the outermost electrode and the separator disposed under the outermost electrode extend beyond the inner electrode disposed under the separator in a lengthwise direction of the winding by 3 cm or greater. | 05-19-2011 |
20110117406 | SECONDARY BATTERY - A secondary battery, including an electrode assembly including a first electrode plate, a second electrode plate, and a separator disposed between the first and second electrode plates, wherein the electrode assembly includes a first electrode tab including a plurality of stacked first unit tabs protruding from the first electrode plate; and a second electrode tab including a plurality of stacked second unit tabs protruding from the second electrode plate, wherein the first electrode tab has a width, the width being greater than widths of each of the first unit tabs. | 05-19-2011 |
20110117407 | THF-based Electrolyte for Low Temperature Performance in Primary Lithium Batteries - An electrochemical cell ( | 05-19-2011 |
20110123846 | Cylindrical secondary battery - A cylindrical secondary battery including a battery unit including a wound first electrode plate, separator, and second electrode plate, and first and second electrode tabs respectively protruding from the first and second electrode plates; a can for accommodating the battery unit; a cap assembly for sealing an opening of the can; and a first insulation plate in the can and on an upper portion of the battery unit, the first insulation plate being configured to prevent a short between the first electrode tab and the second electrode plate having different polarities, wherein the first insulation plate includes a linear small aperture through which the first electrode tab extends and a circular small aperture for injection of an electrolyte, and the linear and circular small apertures are disposed in a region equal to or less than 50% of the first insulation plate. | 05-26-2011 |
20110123847 | ALKALINE BATTERY - An alkaline battery which is superior in high-rate discharge characteristics and in moderate- and low-rate discharge characteristics is provided. | 05-26-2011 |
20110129706 | Lithium-Ion Secondary Battery - A lithium-ion secondary battery includes: a winding body in a coil formation at a battery container, the winding body wrapping a cathode film in which lithium ions store and from which lithium ions extract and a anode film in which lithium ions store and from which lithium ions extract, and the cathode film and the anode film being electrically separated from each other via a porous separator; and a heat sink disposed inside the battery container, which contacts the battery container and transmits heat inside the winding body to the battery container. | 06-02-2011 |
20110129707 | SECONDARY BATTERY - A secondary battery including an electrode assembly. The electrode assembly includes a first electrode including a plurality of first electrode tabs extending to a side of the first electrode, a second electrode including a plurality of second electrode tabs extending to a side of the second electrode, and a separator between the first electrode and the second electrode and insulating the first electrode and the second electrode from one another. The electrode assembly is in a wound jelly roll shape. The plurality of first electrode tabs are in one of four quadrants formed by a long axis and a short axis of the wound electrode assembly. The plurality of second electrode tabs are in a different one of the four quadrants. | 06-02-2011 |
20110129708 | RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly in which a separator is arranged between a positive electrode and a negative electrode, an electrolyte disposed in the electrode assembly, a can accommodating the electrode assembly and the electrolyte, an upper insulation plate disposed on an upper portion of the electrode assembly to contact the upper portion of the electrode assembly, a cap assembly coupled to the upper portion of the can, and a gasket arranged to form a seal between the cap assembly and the upper portion of the can and contacting an upper surface of the upper insulation plate. A rotation restricting portion to restrict rotation of the upper insulation plate with respect to the gasket is formed at least any one of the upper surface of the upper insulation plate and a lower surface of the gasket contacting each other. | 06-02-2011 |
20110129709 | POUCH TYPE SECONDARY BATTERY WITH SAFETY MEMBER - A pouch type secondary battery including a safety member. The pouch type secondary battery includes an electrode assembly including first and second electrode plates having opposite electrical polarities and a first separator between the first and second electrode plates; and a safety member including a first conductive plate located on an outside of the electrode assembly and electrically connected to the first electrode plate, a second conductive plate located on an outside of the first conductive plate and electrically connected to the second electrode plate, and an insulating plate between the first and second conductive plates for insulating the first and second conductive plates from each other, and the first conductive plate has a puncture strength that is greater than a puncture strength of the second conductive plate. | 06-02-2011 |
20110129710 | WOUND ELECTROCHEMICAL DEVICE AND MANUFACTURING METHOD THEREOF - A resin layer RN is bonded to a corner of the other end of at least one of an anode electrode A and a cathode electrode K and an outer edge of a corner of the other end of the other of the anode electrode A and the cathode electrode K is not located on a straight line passing an outer edge of the corner of the other end of the at least one and being parallel to a thickness direction of the electrode. In another embodiment, an outer edge of a corner of the other end of at least one of the anode electrode A and the cathode electrode K consists of an arcuate curve when viewed from a direction parallel to the thickness direction thereof, and an outer edge of a corner of the other end of the other of the anode electrode A and the cathode electrode K is not located on a straight line passing the outer edge of the corner of the other end of the at least one and being parallel to the thickness direction. | 06-02-2011 |
20110129711 | Secondary Battery - A secondary battery including: an electrode assembly including a plurality of first and second electrode plates, and a plurality of separators between the first and second electrode plates; a first electrode tab on the first electrode plate, and a second electrode tab on the second electrode plate; a case housing the electrode assembly, and the first and second electrode tabs; and first and second external lead terminals at an outer side of the case and electrically coupled to the first and second electrode tabs, respectively. | 06-02-2011 |
20110129712 | MANDREL WITH DRIVE MEMBER FOR ELECTROCHEMICAL CELLS - A mandrel for an electrochemical cell includes an elongated hollow tube. At least one drive member is provided at an end of the hollow tube and is configured to receive a driver in order to rotate the mandrel. The drive member is configured to electrically insulate the hollow tube from an electrode that is wound around the hollow tube. | 06-02-2011 |
20110135981 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME - A negative electrode of a nonaqueous electrolyte secondary battery includes a negative electrode current collector ( | 06-09-2011 |
20110135982 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND FABRICATION METHOD THEREOF, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A negative electrode, whose tensile strength is 15 N/cm or lower when the percentage elongation in the longitudinal direction is 1%, is used in a non-aqueous electrolyte secondary battery including: a flat electrode group | 06-09-2011 |
20110143178 | SECONDARY BATTERY - A secondary battery including: a wound electrode assembly, including, a first electrode tab and a second electrode tab; a can to house the electrode assembly and an electrolyte, having a threaded neck and an opening; and a threaded cap to seal the can by mating with the neck. The neck may have an external threaded surface, and the cap may have an internal threaded surface that mates with the threaded surface of the neck. A sealing material may applied between the neck and the cap, to adhere the same. | 06-16-2011 |
20110151295 | Electrode assembly and secondary battery using the same - An electrode assembly includes a positive electrode plate including a positive electrode active material layer and positive electrode uncoated areas on a positive collector, a negative electrode plate including a negative electrode active material layer and negative electrode uncoated areas on a negative collector, the negative electrode active material layer having a negative electrode active material on the negative electrode collector, and the negative electrode uncoated areas having no negative electrode active material, a separator interposed between the positive electrode plate and the negative electrode plate, and a positive electrode tab set and a negative electrode tab set. The positive electrode tab set includes a plurality of positive electrode tabs being folded portions of the positive electrode uncoated areas and coupled to each other, and the negative electrode tab set includes a plurality of negative electrode tabs being folded portions of the negative uncoated areas and coupled to each other. | 06-23-2011 |
20110151296 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes an electrode group ( | 06-23-2011 |
20110151297 | BATTERY AND BATTERY PACK - A battery pack includes a plurality of batteries | 06-23-2011 |
20110159328 | SECONDARY BATTERY - A secondary battery includes an electrode assembly having a first electrode plate, a second electrode plate and a separator interposed therebetween. A pouch case includes an accommodating portion for accommodating the electrode assembly and a cover portion for sealing the accommodating portion. A reinforcing member is formed between the pouch case and the electrode assembly. In the secondary battery, the reinforcing member includes a first frame formed along one surface of the pouch case, which comes in contact with the electrode assembly, a support portion formed in form of a plate while being spaced apart from the first frame, and a second frame to connect the first frame and the support portion to each other. | 06-30-2011 |
20110159329 | NON-AQUEOUS ELECTROLYTE BATTERY - A manganese non-aqueous electrolyte battery having safety at a time of battery abnormality and having a long life span is provided. A battery | 06-30-2011 |
20110165444 | SORT OF LI-ION POWER CELL - A Li-ion power cell includes at least two winding cores produced by a winding process. Each of the winding cores has an anode tab and a cathode tab. The anode tabs and the cathode tabs of the respective winding cores are connected in parallel, respectively. The winding core is of cylindrical or diamond shape. The Li-ion power cell further includes a housing, an anode pole and a cathode pole which are disposed on the housing. The anode tabs of the respective winding cores are connected in parallel and then electrically connected to the anode pole, and the cathode tabs of the respective winding cores are connected in parallel and then electrically connected to the cathode pole. | 07-07-2011 |
20110165445 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME - An electrode group | 07-07-2011 |
20110171507 | SECONDARY BATTERY - A secondary battery includes an electrode assembly, a can, a cap assembly, and a gasket. The electrode assembly includes a wound stack of two mutually different electrodes and a separator interposed between the two electrodes. The can houses the electrode assembly. The cap assembly is assembled at an upper portion of the can. The gasket is interposed and pressed between the cap assembly and the upper portion of the can, to maintain insulation and a seal between the cap assembly and the can. An adhesive layer of an applied low-viscosity adhesive liquid is provided at an inner side of the gasket to increase sealing force between the cap assembly and the can. | 07-14-2011 |
20110171508 | SECONDARY BATTERY - A secondary battery is disclosed. The secondary battery includes an electrode assembly formed by stacking and winding two different electrodes and a separator disposed between the electrodes, a can accommodating the electrode assembly, a cap assembly coupled to an upper portion of the can accommodating the electrode assembly, a gasket compressed between the cap assembly and the upper portion of the can to insulate and seal a space between the cap assembly and the can, and an auxiliary sealing member disposed inside the gasket to increase sealing force between the cap assembly and the can. The secondary battery maintains sealing force of the gasket closely contacting the outer surface of the cap assembly to secure sufficient sealing force and inhibit the dispersion of sealing pressures. | 07-14-2011 |
20110171509 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - Disclosed is a non-aqueous electrolyte secondary battery including: an electrode assembly including a positive electrode including a belt-like positive electrode current collector and a positive electrode active material layer adhering to a surface of the positive electrode current collector, a negative electrode including a belt-like negative electrode current collector and a negative electrode active material layer adhering to a surface of the negative electrode current collector, and a separator for insulating the positive electrode from the negative electrode, the positive electrode, the negative electrode, and the separator being spirally wound together; and a non-aqueous electrolyte. The separator includes a heat resistant porous film including a heat resistant resin, a first polyolefin porous film covering entirely a surface of the heat resistant porous film on the positive electrode side, and a second polyolefin porous film covering entirely a surface of the heat resistant porous film on the negative electrode side. The heat resistant resin has a melting point or a heat deflection temperature higher than those of polyolefins included in the first and second polyolefin porous films. The heat resistant porous film has a thickness of 1 to 16 μm, each of the first and second polyolefin porous films has a thickness of 2 to 17 μm, and the separator has a thickness of 5 to 35 μm. | 07-14-2011 |
20110177369 | ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery including an electrode for a lithium ion secondary battery, the electrode including: a current collector | 07-21-2011 |
20110177370 | ELECTRODE BODY, ALL SOLID STATE BATTERY ELEMENT, AND ALL SOLID STATE BATTERY - An electrode body used for an all solid state battery element, having a bipolar electrode basic structure having: a current collector, a cathode active material layer formed on one surface of the above-mentioned current collector, an anode active material layer formed on a surface of the above-mentioned current collector and formed in a position not overlapping with the above-mentioned cathode active material layer in a plan view, and a current collector exposed portion, formed between the above-mentioned cathode active material layer and the above-mentioned anode active material layer, and exposing both surfaces of the above-mentioned current collector. | 07-21-2011 |
20110183169 | BATTERY WITH MULTIPLE JELLY ROLLS IN A SINGLE POUCH - The disclosed embodiments provide a battery cell which includes a set of jelly rolls enclosed in a pouch. Each jelly roll includes layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a first set of conductive tabs and a second set of conductive tabs. Each of the first set of conductive tabs is coupled to the cathode of one of the jelly rolls, and each of the second set of conductive tabs is coupled to the anode of one of the jelly rolls. At least one of the first set and one of the second set of conductive tabs extend through seals in the pouch to provide terminals for the battery cell. | 07-28-2011 |
20110183170 | ELECTRODE ASSEMBLY, METHOD OF MANUFACTURING ELECTRODE ASSEMBLY, AND SECONDARY BATTERY INCLUDING ELECTRODE ASSEMBLY - Disclosed are an electrode assembly, a method of manufacturing the electrode assembly, and a secondary battery including the electrode assembly. The electrode assembly includes a first electrode coated with a first active material, a second electrode coated with a second active material, and a separator located between the first and second electrodes for insulating the first electrode from the second electrode. The first and second electrodes and the separator are wound into a jelly-roll. At least one of the first and second electrodes includes a non-coated portion where an active material is not coated on a roll-starting end or a roll-finishing end of the at least one of the first and second electrodes, the non-coated portion is located at a region of a first side surface or a second side surface of the at least one electrode, and the region having the non-coated portion does not face an electrode having a different polarity from the at least one of the first and second electrodes with the separator interposed therebetween. | 07-28-2011 |
20110183171 | Secondary battery and method of manufacturing secondary battery - A secondary battery includes first and second collecting plates branching out from an electrode terminal, and first and second electrode assemblies rolled up in a jelly-roll type unit, the first electrode assembly having a first non-coating portion adhered to the first collecting plate, the second electrode assembly having a second non-coating portion adhered to the second collecting plate, and the first and second collecting plates being on facing surfaces of respective first and second non-coating portions. The first non-coating portion is spaced apart from a roll center of the first electrode assembly by a first predetermined distance along a direction directed away from the second non-coating portion, and the second non-coating portion is spaced apart from a roll center of the second electrode assembly by a second predetermined distance along a direction directed away from the first non-coating portion. | 07-28-2011 |
20110183172 | Sealed Battery Cell - A sealed battery cell includes: a coiled electrode group comprising a positive electrode, a negative electrode, and a separator wound around a winding core; a cylindrical battery cell container having an open end and a bottom surface, that contains the coiled electrode group; and a sealed cover swaged in the open end of the battery cell container, which seals the open end; wherein the winding core is squeezed between the bottom surface of the battery cell container and the sealed cover, the bottom surface of the battery cell container being elastically deformed outwards in the axial direction. | 07-28-2011 |
20110183173 | RECTANGULAR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A rectangular nonaqueous electrolyte secondary battery includes a positive electrode ( | 07-28-2011 |
20110189516 | ALKALINE DRY BATTERY - The present invention provides an alkaline dry battery improved in pulse discharge characteristic under high load in a low temperature atmosphere. The alkaline dry battery of the present invention includes: a hollow cylindrical positive electrode | 08-04-2011 |
20110189517 | ALKALINE BATTERY - An alkaline battery is provided in which the pulse discharge characteristic under high load is improved with a stable performance for drop impact or vibration. The alkaline battery includes a hollow cylindrical positive electrode | 08-04-2011 |
20110189518 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a high-output, and long-life nonaqueous electrolyte secondary battery. The nonaqueous electrolyte secondary battery includes: an electrode group which is formed by winding a positive electrode | 08-04-2011 |
20110195286 | Secondary Cell - A secondary cell includes: an electrode roll in which a positive foil on which a positive-electrode material is coated and a negative foil on which a negative-electrode material is coated are winded through a separator into a flat shape around a winding core; a case in which the electrode roll is housed; a cover which seals the case; a positive terminal and a negative terminal provided on the cover; a positive electrode current collector plate that is electrically connected to the positive foil of the electrode roll and the positive terminal and held by the cover; and a negative electrode current collector plate that is electrically connected to the negative foil of the electrode roll and the negative terminal and held by the cover. The positive electrode current collector plate and the negative electrode current collector plate are each connected to the winding core. | 08-11-2011 |
20110195287 | PRISMATIC SEALED SECONDARY CELL AND METHOD OF MANUFACTURING THE SAME - The present invention provides a prismatic sealed secondary cell that is excellent in current collection efficiency and current collection stability, and capable of high output discharge. | 08-11-2011 |
20110195288 | SEALED BATTERY AND METHOD FOR FABRICATING THE SAME - A sealed battery includes electrode group | 08-11-2011 |
20110200857 | LITHIUM-ION BATTERY AND METHOD OF MANUFACTURING THE SAME - A lithium-ion battery whose inner short circuit can be suppressed to improve reliability, and a method of manufacturing the same are provided. A filler is coated on an end portion of a first separator and an end portion of a second separator. In this manner, when a positive electrode, the first separator, a negative electrode, and the second separator are wound, for example, an end portion of a space formed between the positive electrode and the first separator and an end portion of a space formed between the first separator and the second separator adjacent to each other can be closed by the filler. As a result, by the filler, the entering of foreign substance (more particularly, metal foreign substance) into an electrode-wound body can be prevented. | 08-18-2011 |
20110200858 | BATTERY CELL - An electrochemical cell includes a cell element comprising at least one electrode. A portion of the at least one electrode extends outward from an end of the cell element. The portion of the at least one electrode is folded onto itself to provide a coupling surface for conductive connection to a terminal of the electrochemical cell. | 08-18-2011 |
20110206961 | RAPIDLY RECHARGEABLE BATTERY - Design of a rapidly rechargeable gas battery is disclosed. In one embodiment, a rapidly rechargeable gas battery is constructed of a plurality of high surface area, gas adsorbing electrodes and an electrolyte, wherein, during charging operation, gases are formed and adsorbed at the plurality of electrodes such that they generate an electrochemical potential for discharge of the cell formed by electrodes and electrolyte until the state-of-charge has become negligible (deep discharge). The rapidly rechargeable gas battery is designed such that it can withstand high charging current and a deep discharge without irreversible changes in the electrode materials. | 08-25-2011 |
20110206962 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - An aspect of the invention provides a nonaqueous electrolyte secondary battery including a flattened electrode assembly in which a positive electrode plate containing lithium transition metal composite oxide as positive electrode active material, and a negative electrode plate containing carbon material able to insert and extract lithium ions as negative electrode active material, are stacked and wound with a separator interposed therebetween, and a protective layer constituted of inorganic oxide and an insulative binding agent provided on a surface of the negative electrode plate. The arithmetic mean surface roughness Ra of a face of the separator that contacts with the protective layer is 0.40 to 3.50 μm. With the invention, a nonaqueous electrolyte secondary battery is obtained that has enhanced formability of the flattened electrode assembly and superior output characteristics and other battery characteristics. | 08-25-2011 |
20110206963 | INORGANIC OXIDE POWDER AND INORGANIC OXIDE-CONTAINING SLURRY, AND LITHIUM ION SECONDARY BATTERY USING THE SAME SLURRY AND METHOD OF PRODUCING THE SAME - An inorganic oxide powder suited to form an inorganic oxide porous film having insulating properties on a surface of at least one of a positive electrode, a negative electrode and a separator which are used configure a lithium ion secondary battery is provided. Disclosed is an inorganic oxide powder used to form an inorganic oxide porous film having insulating properties on a surface of at least one of a positive electrode, a negative electrode and a separator used in a lithium ion secondary battery, wherein | 08-25-2011 |
20110212351 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery including an electrode assembly having a positive electrode including a positive current collector partially coated with a positive active material to form a positive coated region and a positive uncoated region, a negative electrode including a negative current collector partially coated with a negative active material to form a negative coated region and a negative uncoated region and a separator between the positive electrode and the negative electrode. The electrode assembly is spirally wound a plurality of times with the positive uncoated region and the negative uncoated region together forming a core central to the spirally-wound electrode assembly and wound from 3 to 15 times. | 09-01-2011 |
20110217576 | WOUND ELECTRODE ASSEMBLY AND BATTERY - A wound electrode assembly | 09-08-2011 |
20110217577 | LITHIUM SECONDARY BATTERY - A lithium secondary battery comprises an electrode assembly and a non-aqueous electrolyte. The electrode assembly is made by winding a negative electrode, a positive electrode, and a separator interposed between the negative and positive electrodes. The negative electrode contains a negative electrode active material that is alloyed with lithium. The non-aqueous electrolyte is impregnated in the electrode assembly. At least one of the negative and positive electrodes is divided into a plurality of electrode units which are arranged at spaces for each other along the winding direction. | 09-08-2011 |
20110217578 | METHOD FOR HIGH VOLUME MANUFACTURE OF ELECTROCHEMICAL CELLS USING PHYSICAL VAPOR DEPOSITION - Embodiments of the present invention relate to apparatuses and methods for fabricating electrochemical cells. One embodiment of the present invention comprises a single chamber configurable to deposit different materials on a substrate spooled between two reels. In one embodiment, the substrate is moved in the same direction around the reels, with conditions within the chamber periodically changed to result in the continuous build-up of deposited material over time. Another embodiment employs alternating a direction of movement of the substrate around the reels, with conditions in the chamber differing with each change in direction to result in the sequential build-up of deposited material over time. The chamber is equipped with different sources of energy and materials to allow the deposition of the different layers of the electrochemical cell. | 09-08-2011 |
20110217579 | ALKALINE BATTERY - A negative electrode ( | 09-08-2011 |
20110223454 | PRISMATIC CELL AND PRODUCTION METHOD FOR THE SAME - A wound electrode body is fabricated by laminating and winding positive and negative electrode sheets together with a separator therebetween for insulation. On both positive and negative electrode side ends of the wound electrode body, laminates of current-collecting foil layered portions of the electrode sheets are bent or folded f toward the outer peripheral side to be separated into two. The separated laminates and forked connector leaves are overlapped and clamped between an ultrasonic chip and an anvil. Then, they are welded. The forked connector leaves are arranged such that no opposing forked connector leaf is present in the direction of a line normal to the forked connector leaf, so that the anvil does not have to be cantilevered. This allows welding by using the ultrasonic chip and the anvil without interfering with the collector rs. As a result, the quality of welding is improved. | 09-15-2011 |
20110223455 | LITHIUM-ION SECONDARY CELL - A lithium-ion secondary cell includes a winding electrode assembly. The exposed area of the positive-electrode metal current collector body is formed at one end in a winding axis direction of the winding electrode assembly, and the exposed area of the negative-electrode metal current collector body is formed at another end in the winding axis direction of the winding electrode assembly; and the negative-electrode metal current collector body is a copper foil rolled to a thickness between 6 μm and 15 μm in which one or more of additive elements of Zr, Ag, Au, Pt, Cr, Cd, Sn, Sb, and Bi are added to Cu having a purity of equal to or greater than 99.9%, and the negative-electrode active material mix layer has a cavity volume ratio of between 30% and 60%. | 09-15-2011 |
20110223456 | ELECTRODE, SECONDARY BATTERY, AND FABRICATION METHOD OF SECONDARY BATTERY - Disclosed is an electrode used in a wound electrode assembly, the electrode including: a current collector; a first material mixture layer including a first active material, which is formed on one surface of the current collector; and a second material mixture layer including a second active material, which is formed on the other surface of the current collector. When an electrode assembly is assembled, the first material mixture layer is wound in a manner such that it is positioned on the outer side of the second material mixture layer. In a part corresponding to a predetermined region of a cross section of said electrode assembly perpendicular to the winding axis thereof, the radius of curvature of the predetermined region being 3.0×10 | 09-15-2011 |
20110229747 | SECONDARY BATTERY CELL - The secondary battery cell according to the present invention includes a cylindrical winding core for winding the positive electrode and the negative electrode. This winding core has a hollow portion which pierces through the winding core coaxially from one end of the cylindrical winding core to the other end. The cross section of one side of the hollow portion is larger than that of the other end, so that a welding electrode rod is easily inserted from the side of the winding core with larger cross section of the hollow portion, and that the position of the welding electrode rod is well defined by the narrower hollow portion. The side of the winding core with larger cross section of the hollow portion is used for fitting a drive shaft of winding device. | 09-22-2011 |
20110229748 | CYLINDRICAL SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - The current-collecting lead for being welded to a collector welded to an upper portion of an electrode group and also to a sealing assembly of an cylindrical secondary battery includes: a flat surface part welded to the collector, and a top part formed to be curved and protrude approximately in the shape of a dome from the flat surface part and welded to the sealing assembly. A central opening is formed at a central portion of the top part. Around the central opening, a plurality of welding projections are formed to protrude toward the sealing assembly. The welding projections serve as welding spots to the sealing assembly. The top part is deformed by a pressing force from the sealing assembly to be brought into surface contact with a corner portion of a convex portion formed on a lower surface of the sealing assembly. | 09-22-2011 |
20110236737 | NON-AQUEOUS SECONDARY BATTERY - A non-aqueous secondary battery contains a positive electrode, a negative electrode, a separator and a non-aqueous electrolytic solution. The positive electrode contains a layered structure lithium-containing compound oxide, or a spinel lithium-containing compound oxide containing manganese as an active material. The non-aqueous electrolytic solution contains at least one additive selected from a sulfonic acid anhydride, a sulfonate ester derivative, a cyclic sulfate derivative and a cyclic sulfonate ester derivative, and a vinylene carbonate or a derivative of the vinylene carbonate. | 09-29-2011 |
20110244284 | Electrode assembly and rechargeable battery using the same - An electrode assembly includes a positive electrode including a positive electrode current collector and a positive electrode active material layer on the positive electrode current collector, a negative electrode including a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector, and a separator between the positive and negative electrodes, the separator including a heat-resistive unit and a lubrication unit, the heat-resistive unit having a heat-resistive material, and the lubrication unit being at an inner front end of the spirally winding separator and having a friction coefficient that is lower than that of the heat-resistive unit. | 10-06-2011 |
20110244285 | SECONDARY CELL AND METHOD OF MANUFACTURE THEREOF - In a secondary cell according to the present invention, one end portion of the electrically conductive lead is connected to the lid unit; and wherein other end portion of the electrically conductive lead is connected to the current collecting member; and the current collecting member and the lid unit are electrically connected together by a electrically conductive lead, of which one end portion that is connected to the lid unit is positioned opposite relative to a central plane of the container from the other end portion that is connected to the current collecting member, and that furthermore has one folded portion at a location partway therealong, or none. | 10-06-2011 |
20110244286 | ELECTROCHEMICAL CELL HAVING AN ELECTRICALLY INSULATED HOUSING - An electrochemical cell including a housing configured to receive a cell element. The housing has an electrically-insulating material including metal oxide particles provided on at least a portion of an inner surface thereof to prevent electrical contact between the housing and the cell element. A method of manufacturing an electrochemical cell including applying an electrically-insulating material including metal oxide particles to an inner surface of a housing for an electrochemical cell and inserting a cell element into the housing. | 10-06-2011 |
20110244287 | METHOD FOR MANUFACTURING SECONDARY CELL AND SECONDARY CELL - The present invention provides a method for manufacturing a secondary cell, comprising the steps of: disposing two sheets of separators ( | 10-06-2011 |
20110250479 | INTERWOVEN SEPARATOR - Provided is an electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, a negative portion and a removable portion. In some embodiments, the mandrel is planar having two faces with a groove on each of the positive and negative portions. The grooves can be on the same or different faces of the mandrel. The grooves are dimensioned to accommodate a positive and negative feedthrough pin. The electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. Once wrapped, the removable portion can be detached. The positive portion and the negative portion are left in the electrode assembly insulated from each other. The mandrel allows tighter wrapping of the jelly roll assembly, increasing battery miniaturization and also results in electrode assemblies in which after-placement of tabs does not result in burrs or shorting. | 10-13-2011 |
20110250480 | INTERCONNECT JOINT - Provided is an electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, a negative portion and a removable portion. In some embodiments, the mandrel is planar having two faces with a groove on each of the positive and negative portions. The grooves can be on the same or different faces of the mandrel. The grooves are dimensioned to accommodate a positive and negative feedthrough pin. The electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. Once wrapped, the removable portion can be detached. The positive portion and the negative portion are left in the electrode assembly insulated from each other. The mandrel allows tighter wrapping of the jelly roll assembly, increasing battery miniaturization and also results in electrode assemblies in which after-placement of tabs does not result in burrs or shorting. | 10-13-2011 |
20110250481 | COIL SEAL TO SECURE THE ELECTRODE WINDINGS OF AN ELECTROCHEMICAL CELL - Provided is an electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, a negative portion and a removable portion. In some embodiments, the mandrel is planar having two faces with a groove on each of the positive and negative portions. The grooves can be on the same or different faces of the mandrel. The grooves are dimensioned to accommodate a positive and negative feedthrough pin. The electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. Once wrapped, the removable portion can be detached. The positive portion and the negative portion are left in the electrode assembly insulated from each other. The mandrel allows tighter wrapping of the jelly roll assembly, increasing battery miniaturization and also results in electrode assemblies in which after-placement of tabs does not result in burrs or shorting. | 10-13-2011 |
20110256435 | Graphite/DSA assembled electrode for redox flow battery, method of manufacturing the same and redox flow battery including the same - Disclosed is a graphite/DSA assembled electrode for a redox flow battery, obtained by assembling a graphite electrode made of micro-sized graphite and a DSA electrode using rolling thus improving cell performance including electrode durability, corrosion resistance, power density, energy efficiency and cycle properties. A method of manufacturing the graphite/DSA assembled electrode is also provided, which includes preparing a mixture composed of a graphite active material, a conductive material and a binder into a slurry using an alcohol, evaporating the alcohol from the slurry thus preparing a paste, thinly spreading the paste into an electrode sheet, and rolling the electrode sheet along with a DSA electrode thus obtaining the assembled electrode. A redox flow battery including the electrode thus obtained is also provided, which has increased electrode durability and corrosion resistance and enhanced power properties, energy efficiency and cycle performance. | 10-20-2011 |
20110256436 | RECHARGEABLE BATTERY - A rechargeable battery including an electrode assembly including a positive electrode, a negative electrode, and a separator between the positive electrode and the negative electrode; a case housing the electrode assembly; a heat dissipating member including a heat collecting portion inserted in the electrode assembly and a heat dissipating portion protruding outside of the case; and a sealing member between the heat dissipating member and the case, the sealing member including a first polymer layer and a second polymer layer having a melting point that is lower than a melting point of the first polymer layer. | 10-20-2011 |
20110256437 | LITHIUM SECONDARY BATTERY POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY - A lithium secondary battery positive electrode of the present invention includes a positive electrode material mixture layer containing a positive electrode active material, a conductivity enhancing agent and a binder on one or both sides of a current collector, and the positive electrode active material contains a lithium-containing composite oxide represented by the general compositional formula: Li | 10-20-2011 |
20110256438 | WOUND-TYPE ACCUMULATOR - The invention has as its object the provision of a wound-type accumulator, by which arrangement of a lithium ion source is simplified, and the time required to inject an aprotic organic solvent electrolyte solution and the time required for predoping are shortened, and thus the assembly can be completed in a short period of time to achieve high productivity. | 10-20-2011 |
20110262787 | Electrochemical Cell with Reduced Magnetic Field Emission and Corresponding Devices - A battery pack having reduced magnetic emitted noise includes a housing having an electrode assembly ( | 10-27-2011 |
20110269002 | POWER SUPPLY APPARATUS - a formed article having two or more separate accommodating cavities; | 11-03-2011 |
20110269003 | LITHIUM PRIMARY BATTERY - A lithium primary battery | 11-03-2011 |
20110274953 | SECONDARY BATTERY CELL AND METHOD OF MANUFACTURING THE SAME - In a secondary battery cell including an electrode group that is manufactured by winding a positive electrode having a plurality of positive leads and a negative electrode having a plurality of negative leads, the lengths of the positive electrode and the negative electrode are respectively longer than the length satisfying the rated power generating capacity of the secondary battery cell and are cut not upon a positive lead and not upon negative lead, respectively. | 11-10-2011 |
20110274954 | THREAD-TYPE BATTERY AND CONNECTOR FOR CONNECTING SAME - Disclosed is a thread-type battery. The battery of the present invention comprises a flexible body unit, a first pole terminal which is formed at one end of the body unit, and which protrudes so as to be insertable into a first external terminal, and a second pole terminal which is formed at the other end of the body unit which has a shape in which a second external terminal is to be inserted, and which has a polarity opposite that of the first pole terminal. The present invention enables users to easily connect positive poles and negative poles. | 11-10-2011 |
20110274955 | POUCH TYPE CASE AND BATTERY PACK INCLUDING THE SAME - The present invention relates to a pouch type case having trimming portions formed on both sides or four corners thereof and a battery pack including the same. The trimming portions are formed on the corners of the pouch type case such that the trimming portions are indented toward an electrode assembly accommodating part to reduce a unit area so as to increase pressure applied to unit cells when a battery pack is assembled, thereby facilitating assembling of the battery pack and increasing cell capacity per unit area. Furthermore, the unit cells can be fixed in the battery pack more stably. The pouch type case reduces the unit area so as to include a relatively large number of cells for pressure applied to the cells when the battery pack is assembled to thereby increase the cell capacity. | 11-10-2011 |
20110281148 | NEGATIVE-LIMITED LITHIUM-ION BATTERY - A rechargeable lithium-ion battery includes a positive electrode having a first capacity and a negative electrode having a second capacity that is less than the first capacity such that the battery has a negative-limited design. The negative electrode includes a lithium titanate active material. A liquid electrolyte that includes a lithium salt dissolved in at least one non-aqueous solvent a porous polymeric separator are located between the positive electrode and negative electrode. The separator is configured to allow lithium ions to flow through the separator. | 11-17-2011 |
20110287288 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY FABRICATING METHOD - A nonaqueous electrolyte secondary battery includes an electrode group ( | 11-24-2011 |
20110287289 | Rechargeable battery and battery module - A rechargeable battery and a battery module, the rechargeable battery including an electrode assembly formed by winding a positive electrode and a negative electrode and a separator therebetween; a case accommodating the electrode assembly; a cap plate sealing an opening at one side of the case, the cap plate including a terminal hole therethrough; an electrode terminal in the terminal hole of the cap plate, the electrode terminal extending to an outside from an inside of the case and being connected to the electrode assembly; and a terminal cap including an electrical insulating material, the terminal cap covering the electrode terminal from the outside of the case. | 11-24-2011 |
20110287290 | Rechargeable battery - A rechargeable battery includes an electrode assembly including wound positive and negative electrodes with a separator therebetween, a case configured to contain the electrode assembly, a cap plate configured to seal an opening of the case, the cap plate including a terminal hole therethrough, an electrode terminal through the terminal hole of the cap plate, the electrode terminal including a terminal through-out portion extending through the terminal hole, a terminal plate connected to the terminal through-out portion outside the case, and a fastening portion including a terminal fastening portion connected to the terminal plate, and a lead tab inside the case, the lead tab connecting the terminal through-out portion of the electrode terminal to the electrode assembly. | 11-24-2011 |
20110287291 | RECHARGEABLE BATTERY - A rechargeable battery having improved supporting force of a lead tab and fastening force between the lead tab and an electrode terminal. A rechargeable battery according to an exemplary embodiment includes an electrode assembly formed by winding positive and negative electrodes formed at both sides of a separator together with the separator, a case housing the electrode assembly therein, a cap plate sealing an opening at one side of the case, an electrode terminal formed in a terminal hole of the cap plate, and a lead tab connecting the electrode terminal and the electrode assembly in the case. The electrode terminal includes an inner terminal plate formed at an inner side of the cap plate and a main coupling protrusion and a first auxiliary coupling protrusion protruding from the inner terminal plate and respectively coupled to a first fastening hole and a second fastening hole of the lead tab. | 11-24-2011 |
20110287292 | ALL-SOLID-STATE BATTERY - The present invention provides an all-solid-state battery capable of improving output power. The all-solid-state battery includes a wound solid electrolyte/electrode assembly and a case housing the solid electrolyte/electrode assembly with a pressurized fluid being filled between the inner periphery surface of the case and the solid electrolyte/electrode assembly. | 11-24-2011 |
20110287293 | Cell and Method for Manufacturing the Same, Method and Apparatus for Manufacturing Cell Core, and Cell Core - Disclosed is a method for manufacturing a cell which includes: a first step of manufacturing a core using a core manufacturing apparatus, the apparatus including a pair of winding shafts disposed with a rotation center of the apparatus interposed therebetween, the pair of winding shafts orbitally moving about the rotation center; and a second step of fabricating a laminated electrode member with a sheet-shaped positive electrode, a sheet-shaped negative electrode and a pair of sheet-shaped separators interposed thereto to be arranged alternately with the electrodes; and winding the laminated electrode member around a circumferential surface of the core. The first step includes: inserting a sheet having a higher strength than the separators between the winding shafts; orbitally moving the pair of winding shafts; and adhesively bonding or melt-bonding overlapped portions of the sheet at the winding shafts. | 11-24-2011 |
20110287294 | POUCH-TYPE SECONDARY BATTERY - A pouch-type secondary battery including: an electrode assembly comprising a positive electrode plate, a negative electrode plate and a separator; a negative electrode tab electrically connected to the negative electrode plate and having a first tab tape; and a positive electrode tab electrically connected to the positive electrode plate and having a second tab tape wherein one or two of end portions which the positive electrode tab crosses are located inside a sealing portion. | 11-24-2011 |
20110293976 | SEPARATOR AND BATTERY - A separator includes a first layer that has a first principal face and a second principal face, and a second layer that is formed on at least one of the first principal face and the second principal face. The first layer is a microporous membrane including a first polymer resin, and the second layer is a microporous membrane including inorganic particles having an electrically insulating property and a second polymer resin. | 12-01-2011 |
20110293977 | HIGH-POWER LITHIUM SECONDARY BATTERY - Provided is a secondary battery including an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive electrode non-coating portion that is not coated with an active material in a portion of a positive electrode collector. The negative electrode includes a negative electrode non-coating portion that is not coated with an active material in a portion of a negative electrode collector. The non-coating portions are disposed in at least one of upper and lower portions of the electrode assembly in a longitudinal direction of the electrodes. A positive electrode tab and a negative electrode tab are connected to the non-coating portions. The separator is a complex porous separator including a substrate coated with a binder polymer or an organic/inorganic mixture formed of a binder polymer and inorganic particles. | 12-01-2011 |
20110300423 | RECHARGEABLE BATTERY - A rechargeable battery prevents an electrolyte solution from being leaked from a can connector and improves the productivity of a can. A rechargeable battery constructed as an embodiment of the present invention includes an electrode assembly formed by stacking and winding a positive electrode, a separator, and a negative electrode; a can receiving the electrode assembly, and the can including a body formed by a polygonal tube and a bottom plate bent from at least one surface among multiple surfaces at an opening of the body and physically connected to the rest of the multiple surfaces of the body; and a cap assembly sealing another opening of the body and the cap assembly being disposed opposite to the bottom plate. | 12-08-2011 |
20110305931 | Secondary power source and method for manufacturing the same - Disclosed is a secondary power source and a manufacturing method thereof. The secondary power source includes a unit cell formed by sequentially laminating a first electrode, a separation film, and a second electrode, wherein the first electrode is formed by forming a first electrode material, into which lithium ions can be irreversibly occluded, on a first conductive sheet, and the first electrode is laminated in the unit cell after lithium ions are occluded into the first electrode material by using a metal that can supply lithium ions. | 12-15-2011 |
20110305932 | Heat transfer layered electrodes - A lithium secondary battery includes at least one thermal energy transfer element having a heat transfer plate and a heat transfer member. In addition, the battery includes a first electrode plate and a second electrode plate, and a first separator and a second separator. The first separator and second separators are located between the first and second electrode plates, and the heat transfer plate is located between the first separator and second separators. The electrode plates, separators, and the heat transfer plate are provided within a cell container. In one embodiment, at least part of the heat transfer member is located on the exterior of the cell container. | 12-15-2011 |
20110311851 | BATTERY - According to one embodiment, there is provided a battery. The battery includes a metallic outer can, a wound electrode group, a positive electrode-lead, a negative electrode-lead, a positive electrode insulating cover, and a negative electrode insulating cover. | 12-22-2011 |
20110311852 | LITHIUM ION SECONDARY BATTERY AND PRODUCTION METHOD FOR SAME - A lithium ion secondary battery ( | 12-22-2011 |
20110318620 | RECHARGEABLE BATTERY - A rechargeable battery including an electrode assembly that includes a positive electrode and a negative electrode and a separator and is configured of any one of a winding type and a stacking type and a case receiving the electrode assembly together with an electrolyte solution. A positive electrode includes a positive current collector and a negative electrode includes a negative current collector. At least one of a positive current collector and a negative current collector is positioned at a base layer to which an active material is applied and protruding portions that are positioned at one end of the base layer and are formed at a larger thickness than the base layer to surface-contact each other at the wound or stacked electrode assembly. | 12-29-2011 |
20110318621 | LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - An electrode assembly ( | 12-29-2011 |
20120009450 | Electrode assembly and rechargeable battery including the same - An electrode assembly and a rechargeable battery including the same, the electrode assembly including a first electrode, a second electrode, and a separator interposed therebetween, wherein the first electrode, the second electrode, and the separator are spiral-wound in a jelly-roll structure, the first electrode includes at least two first uncoated regions separated from each other and a first tab coupled to one of the first uncoated regions and a second tab coupled to another of the first uncoated regions, the first tab and the second tab protruding from one side of the jelly-roll structure, the first tab is disposed near a center of the jelly-roll structure and the second tab is disposed near an outer circumference of the jelly-roll structure, and a width of the first tab is smaller than a width of the second tab. | 01-12-2012 |
20120009451 | SECONDARY BATTERY - A secondary battery that can easily adjust power by disposing a plurality of jelly-rolls for the secondary battery in a case and connecting electrodes of the jelly-rolls in either electrical series or in electrical parallel, with corresponding welds. The secondary battery is constructed with a plurality of jelly-rolls each having a first electrode tab and a second electrode tab protruding from the jelly-roll, a case having an opening accommodating insertion of the jelly-rolls, and a cap plate sealing the opening of the case and bearing electrode terminals on a bottom side of the cap plate facing the jelly-rolls. The first electrode tabs protruding from the jelly-rolls are electrically connected to the electrode terminals and the second electrode tabs protruding from the jelly-rolls are electrically connected to the cap plate. | 01-12-2012 |
20120009452 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a nonaqueous electrolyte secondary battery wherein the energy density is improved by increasing the range of depth of discharge to be used. Specifically disclosed is a lithium ion secondary battery | 01-12-2012 |
20120015223 | BATTERY PACK WITH CELLS OF DIFFERENT CAPACITIES - The disclosed embodiments provide a battery pack for use with a portable electronic device. The battery pack includes a first set of cells with different capacities electrically coupled in a parallel configuration. Cells within the first set of cells may also have different thicknesses and/or dimensions. The first set of cells is arranged within the battery pack to facilitate efficient use of space within a portable electronic device. For example, the first set of cells may be arranged to accommodate components in the portable electronic device. | 01-19-2012 |
20120015224 | BUTTON CELLS AND METHOD FOR PRODUCING SAME - A button cell includes a housing cup and a housing top separated from one another by an electrically insulating seal and which form a housing with a flat bottom area and a flat top area parallel to it and an electrode-separator assembly within the housing including at least one positive and at least one negative electrode in the form of flat layers and connected to one another by at least one flat separator, wherein the electrode layers are aligned essentially at right angles to the flat bottom and top areas and the button cell is closed without being beaded over. | 01-19-2012 |
20120015225 | PRISMATIC SEALED SECONDARY BATTERY AND MANUFACTURING METHOD FOR THE SAME - A prismatic sealed secondary battery according to an embodiment of the present invention includes an electrode assembly having stacked or wound positive and negative electrode substrate exposed portions and a pair of collector members electrically joined to the respective electrode substrate exposed portions. At least one of the electrode substrate exposed portions is split into two groups, and therebetween is disposed an intermediate member made of resin material and holding a plurality of connective conducting members. The collector member for the substrate exposed portions split into two groups is disposed on at least one of the outermost faces of the substrate exposed portions, and is electrically joined by a resistance welding method to the substrate exposed portions, together with the connecting conductive members of the intermediate member. This configuration lowers resistance of the electrode substrate exposed portions and the collector members and curbs variation in the welding strength. | 01-19-2012 |
20120015226 | POUCH TYPE LITHIUM SECONDARY BATTERY - A pouch type lithium secondary battery including a medium- or large-sized battery module includes: a jelly-roll type electrode assembly; a resin-type first packing material that is formed of a two-layer structure having an inner resin layer and an outer resin layer, and for packing the jelly-roll type electrode assembly in the form of a unit cell; and a metal-type second packing material that integrally packs and contains two or more unit cells packed in the first packing material in the form of a module, and prevents moisture and gas penetration by a sealed structure. The pouch type lithium secondary battery is applicable particularly to medium- and large-sized batteries for EVs, p-HEVs, HEVs, and so on. | 01-19-2012 |
20120021264 | LITHIUM-ION BATTERY AND USE THEREOF - The lithium-ion battery provided by the present invention has an electrode assembly ( | 01-26-2012 |
20120021265 | NONAQUEOUS SECONDARY BATTERY AND NONAQUEOUS SECONDARY BATTERY PACK - In a flat nonaqueous secondary battery, an electrode assembly formed by stacking or winding a positive electrode and a negative electrode with a separator interposed therebetween is sealed in a laminated outer body together with a nonaqueous electrolyte, and a positive electrode tab and a negative electrode tab are led out from the laminated outer body. The separator has a rupture elongation of 50% or more in at least the TD direction or the MD direction. A metal plate connected to the positive electrode tab is placed on an outer principal surface of the laminated outer body. This structure provides a nonaqueous secondary battery and a nonaqueous secondary battery pack that are extremely safe, being unlikely to emit smoke or explode even when a nail penetrates the battery in a charged state. | 01-26-2012 |
20120021266 | High Discharge Capacity Lithium Battery - A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode. | 01-26-2012 |
20120021267 | BATTERY - The metal foil of the positive electrode | 01-26-2012 |
20120021268 | BIPOLAR BATTERY WITH IMPROVED OPERATION - A bipolar battery including unit cells fitted with an element including a first electronic conductive support, a second electronic conductive support, an electronic conductive connection connecting the first and the second support, with each support including a first and a second face separate from the first and second faces of the other support, a positive electrode material deposited on one of the faces of the first conductor, and a negative electrode material deposited on one of the faces of the other support. The positive electrode material is supported by the first support, and is positioned facing a negative electrode material, the negative electrode material is supported by the second support, and is positioned opposite a positive electrode material, where the facing electrode materials are separated by an insulator containing an electrolyte, thus forming two juxtaposed unit cells. | 01-26-2012 |
20120028091 | SECONDARY BATTERY - A secondary battery including a wound electrode assembly formed by winding a positive electrode plate having a positive electrode tab fixed thereto, a negative electrode plate having a negative electrode tab fixed thereto, and a separator interposed therebetween, and pressing them in one side direction thereof, the wound electrode assembly having a seam at one side thereof; a battery case having an opening through which the wound electrode assembly is accommodated; a cap plate sealing the opening of the battery case; and a protection tape covering at least a portion of the seam, the protection tape including an aramid fiber. | 02-02-2012 |
20120028092 | AA LITHIUM PRIMARY BATTERY AND AAA LITHIUM PRIMARY BATTERY - An AA lithium primary battery includes: an electrode group | 02-02-2012 |
20120028093 | IONIC CONDUCTIVE SIDE-CHAIN-TYPE POLYMER ELECTROLYTE, PRECURSOR THEREOF, AND LITHIUM SECONDARY BATTERY - This invention provides a side-chain-type polymer electrolyte exhibiting high ionic conductivity and a lithium secondary battery using the same. Such side-chain-type polymer electrolyte comprises a polymer structural unit represented by formula (1): | 02-02-2012 |
20120034504 | FLAT SECONDARY BATTERY ELECTRODE GROUP, METHOD FOR MANUFACTURING SAME, AND FLAT SECONDARY BATTERY WITH FLAT SECONDARY BATTERY ELECTRODE GROUP - Innermost parts ( | 02-09-2012 |
20120034505 | ANODE AND LITHIUM BATTERY WITH THE ANODE - An anode and a lithium battery comprising the same are disclosed. The anode comprises a current collector, and an anode material coated on or filled within the current collector. The anode material comprises a carbon material and an adhesive, and the adhesive comprises a hydrophobic polymer binder and a sodium carboxymethyl cellulose, in which an average molecular weight of the sodium carboxymethyl cellulose ranges from about 10×10 | 02-09-2012 |
20120040218 | SINGLE CELL AND POWER BATTERY PACK COMPRISING THE SAME - A single cell and a power battery pack comprising the same are provided. The single cell comprises: a shell; a cover board sealing an open end of the shell; an electrode core disposed inside the shell; an electrode terminal extending through the cover board, the electrode terminal comprising a first end portion connected with the electrode core inside the shell, a second end portion protruding outside the shell, and a middle portion between the first end portion and the second end portion; and an insulating member disposed between the electrode terminal and the cover board for insulating the electrode terminal; wherein each of the first end portion and the second end portion comprises a plurality of flexible conductive members. | 02-16-2012 |
20120045674 | JELLY ROLL AND ELECTRODE ASSEMBLY HAVING THE SAME - Embodiments of the present invention facilitate a winding process and enable auxiliary current collectors to be securely fixed to a main current collector, thereby minimizing deformation during battery charging and discharging and maintaining sufficient strength. The jelly roll includes a first auxiliary current collector, a second auxiliary current collector, a mandrel insulating layer, and an electrode plate. The first auxiliary current collector and the second auxiliary current collector are spaced apart from each other and each has a mandrel protrusion on an opposite end portion. The mandrel insulating layer insulates the auxiliary current collectors from each other and insulates the auxiliary current collectors from an exterior. The electrode plate is formed by layering a separator, a first electrode plate, a separator and a second electrode plate and is wound on an external surface of the mandrel insulating layer. | 02-23-2012 |
20120058373 | PRISMATIC BATTERY - A prismatic battery | 03-08-2012 |
20120058374 | SECONDARY BATTERY AND FABRICATION METHOD THEREOF - A secondary battery includes: a jelly roll that includes a positive and a negative electrode wound via a separator; a case; a lid; and electrically conductive input/output members, wherein: the electrically conductive input/output members include, at least; a positive and a negative electrode current collector plate with one end thereof connected to the positive and the negative electrode respectively; a positive and a negative electrode external conductive member with one end thereof connected to another end of the positive and the negative electrode current collector plate respectively and another end thereof extending to an outer side of the lid; the one end of the positive and the negative electrode external conductive member are respectively swage-fused to the other end of the positive and the negative electrode current collector plate; and an oxide layer is formed at a surface of each swage-fused area. | 03-08-2012 |
20120058375 | BATTERY - Provided is a battery which has less tendency to experience delamination or loss of short circuit prevention layer and/or active material layer during manufacture and use. | 03-08-2012 |
20120058376 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery comprising an inner electrode comprising at least two anodes arranged in parallel, the anode extending longitudinally and having a horizontal cross section of a predetermined shape, the anode having an electrolyte layer thereon serving as an ion channel; an outer electrode comprising a cathode including a cathode active material layer surrounding the inner electrode; and a protection coating surrounding the outer electrode. The cable-type secondary battery has free shape adaptation due to its linearity and flexibility. A plurality of inner electrodes within a tubular outer electrode lead to an increased contact area therebetween and consequently a high battery rate. It is easy to control the capacity balance between the inner and outer electrodes by adjusting the number of inner electrodes. A short circuit is prevented due to the electrolyte layer formed on the inner electrode. | 03-08-2012 |
20120058377 | ELECTRIC VEHICLE PROPULSION SYSTEM AND METHOD UTILIZING SOLID-STATE RECHARGEABLE ELECTROCHEMICAL CELLS - A vehicle propulsion system comprising a plurality of solid state rechargeable battery cells configured to power a drivetrain. In accordance with once aspect of the invention, a transportation system that is powered at least in part by electricity stored in the form of rechargeable electrochemical cells. According to an embodiment of the present invention, these cells are combined in series and in parallel to form a pack that is regulated by charge and discharge control circuits that are programmed with algorithms to monitor state of charge, battery lifetime, and battery health. | 03-08-2012 |
20120064382 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly includes a first electrode member; a second electrode member; a plurality of first guide portions, wherein at least one of the first guide portions is on the first electrode member; a plurality of second guide portions, wherein at least one of the second guide portions is on the second electrode member; and a separator located between the first electrode member and the second electrode member, wherein the electrode assembly has a first region at which the first guide portions are coupled together and a second region at which the second guide portions are coupled together. | 03-15-2012 |
20120070707 | Cylindrical secondary battery - A secondary battery includes an electrode assembly formed by winding two different electrodes and a separator interposed therebetween, a can housing the electrode assembly, a cap assembly at a upper opening of the can; and a gasket interposed between the cap assembly and the can. The gasket has a relaxed condition prior to compression between the cap assembly and an upper portion of the can and a compressed condition after compression between the cap assembly and the upper portion of the can. The gasket includes a sidewall portion bent inwardly from outside of the can when the gasket is in the compressed condition, a bottom portion at a bottom of the sidewall portion and extending inwardly from a periphery of the can, a protruding portion on which the cap assembly is seated, and a concave portion formed between the protruding portion and an inner surface of the sidewall portion. | 03-22-2012 |
20120070708 | CATHODE ACTIVE MATERIAL, CATHODE AND NONAQUEOUS SECONDARY BATTERY - A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, | 03-22-2012 |
20120070709 | LITHIUM SECONDARY BATTERY - The lithium secondary battery obtained by the present invention is a lithium secondary battery provided with a nonaqueous electrolyte and electrode body | 03-22-2012 |
20120077065 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery includes a flat-shaped electrode wound body. Positive and negative terminals are connected respectively to the body and placed to partially protrude from a battery lid. Assuming that the body length in a winding axial direction is W, the body size in a direction perpendicular to the axial direction and parallel to the flat surfaces is H, and a distance between a farthest position in a connecting range of one of the terminals, in which the terminal is connected to an uncoated portion, from the lid and the body edge located on the lid side is X, the values W, H, and X are determined so that a point defined in a plane (X/H, H/W) by values (X/H) and (H/W) is located in a triangle defined by joining three points, (0.50, 0.70), (0.32, 0.40), and (0.70, 0.40) in the same plane. | 03-29-2012 |
20120082877 | CATHODE, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE CATHODE - A cathode, a method of forming the cathode and a lithium battery including the cathode. The cathode includes a current collector and a cathode active material layer disposed on the current collector; the cathode active material layer includes a lithium transition metal oxide having a spinel structure, a conductive agent, and a binder; and at least a portion of a surface of the cathode active material layer is fluorinated. | 04-05-2012 |
20120088136 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a non-aqueous electrolyte secondary battery including: a cylindrical wound electrode group including a belt-like negative electrode, a belt-like positive electrode, and a belt-like separator interposed therebetween, the electrodes and separator being laminated and wound together; and a non-aqueous electrolyte. The cross section perpendicular to the winding axis of the electrode group has a radius of 3 mm or more. The negative electrode includes a current collector, an active material layer including a silicon-based active material and adhering to the surface of the current collector, and a strip-like lead connected to the current collector via an alloy layer comprising a copper-silicon alloy. The lead is connected at the round of winding radially 3 mm or more away from the winding axis of the electrode group, and includes a copper foil or copper alloy foil having a tensile strength per unit length of the short side width thereof of 3 N/mm to 50 N/mm. | 04-12-2012 |
20120088137 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A battery case houses an electrode group formed by winding a positive electrode plate where a positive electrode active material layer is provided on a positive electrode current collector and a negative electrode plate where a negative electrode active material layer is provided on a negative electrode current collector with a porous insulating layer interposed therebetween. The current collectors are made of metal foil of an identical material. An end of the positive electrode current collector has a first exposed portion provided with no positive electrode active material layer. An end of the negative electrode current collector has a second exposed portion provided with no negative electrode active material layer. The exposed portions and project from the porous insulating layer in opposite directions. The first and second exposed portions and are connected to positive and negative electrode current collector plates, respectively. | 04-12-2012 |
20120088138 | BATTERY CELL AND METHOD OF MANUFACTURING THE SAME - Provided is a battery cell that allow the inner surfaces of connection strips of a current collector to be brought into contact with the outermost circumferential surface of a layered electrode portion of a power generating element while preventing the connection strips from scratching the layered electrode portion. The battery cell includes: a power generating element formed of cathode and anode sheets that are wound up with a separator interposed between the cathode and anode sheets, the power generating element having a layered electrode portion on at least one side of the winding axis direction, the layered electrode portion being one of a cathode and an anode; a current collector having a connection strip arranged along an outermost circumferential surface of the layered electrode portion, the current collector being conductively connected to an external terminal; and a clamp including a first clamp portion that clamps the layered electrode portion and a second clamp portion that clamps the layered electrode portion clamped by the first clamp portion and the connection strip of the current collector together. | 04-12-2012 |
20120094159 | CYLINDRICAL ALKALINE BATTERY - Provided is a cylindrical alkaline battery in which the packing density Dc of the manganese dioxide in the positive electrode is 2.8 to 3.0 g/cm | 04-19-2012 |
20120094160 | RECHARGEABLE BATTERY AND MANUFACTURING METHOD OF THE SAME - A rechargeable battery having an electrode assembly formed by depositing/spiral-winding an positive electrode and a negative electrode on respective surfaces of a separator; a can including a pipe having a side seam portion to enclose the electrode assembly and a bottom plate bonded to a first opening of the pipe by a bottom seam portion to close and seal the first opening and facing an end portion of the electrode assembly; and a cap assembly bonded to a second opening of the pipe formed at the other side of the bottom plate to close and seal the second opening. | 04-19-2012 |
20120094161 | SINGLE CELL AND BATTERY PACK COMPRISING THE SAME - The present invention discloses a single cell comprising a shell, a cover and an electric core. The cover is connected with the shell in a sealed manner. The electric core is accommodated in the shell, and at least two electrode terminals having the same polarity penetrate through the cover respectively. The present invention further discloses a power battery pack comprising a plurality of the single cells as described above. | 04-19-2012 |
20120100406 | BUTTON CELL HAVING WINDING ELECTRODE AND METHOD FOR THE PRODUCTION THEREOF - A button cell includes a housing consisting of two metal housing halves, an electrode separator assembly in the form of a preferably spiral-shaped winding inside the housing, and metal conductors which electrically connect the electrodes of the assembly to the housing halves, wherein at least one of the conductors is connected to the respective housing half by welding. | 04-26-2012 |
20120100407 | ELECTRICAL STORAGE UNIT - An electrical storage unit includes an electrical storage section whose collector-exposed portion formed on both ends of an element is attached to a terminal plate or an outer case, and a pair of cooling plates making contact with an outer surface of the terminal plate or an outer bottom face of the outer case of the electrical storage section. This enables heat release from the electrical storage section to the cooling plate via a material with high heat conductivity, such as a metal member. Accordingly, the electrical storage section heated in charge and discharge cycles can be efficiently cooled. | 04-26-2012 |
20120107654 | RECHARGEABLE BATTERY WITH A JELLY ROLL HAVING MULTIPLE THICKNESSES - The disclosed embodiments relate to the design of a battery cell with multiple thicknesses. This battery cell includes a jelly roll enclosed in a pouch, wherein the jelly roll includes layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The jelly roll also includes a first conductive tab coupled to the cathode and a second conductive tab coupled to the anode. The jelly roll is enclosed in a flexible pouch, and the first and second conductive tabs are extended through seals in the pouch to provide terminals for the battery cell. Furthermore, the battery cell has two or more thicknesses, wherein the different thicknesses are created by removing material from one or more of the layers before winding the layers together. | 05-03-2012 |
20120107655 | SECONDARY BATTERY - A secondary battery comprises: a plurality of cylindrical electrode assemblies, wherein each electrode assembly comprises a positive electrode plate and a negative electrode plate rolled together with a separator interposed between the positive electrode plate and the negative electrode plate; a can housing the plurality of electrode assemblies; a cap assembly sealing the can; a positive electrode tab coupled to the positive electrode plate in each electrode assembly; and a negative electrode tab coupled to the negative electrode plate in each electrode assembly, wherein a first plurality of positive electrode tabs is aligned along a first line when viewed in one direction, and wherein a first plurality of negative electrode tabs is aligned along a second line when viewed in the one direction. | 05-03-2012 |
20120107656 | SEPARATOR FOR BATTERY, AND BATTERY AND METHOD FOR PRODUCING BATTERY INCLUDING THE SAME - A separator for a battery includes a porous polymer film having a first surface and a second surface opposite to the first surface, wherein the first surface has openings distributed thereon communicating with pores of the porous polymer film, and the ratio of the total area of the openings to the area of the first surface is 89% or more and 96% or less. The diameters of the openings may be within the range of 0.8 μm or more and 40 μm or less. A region with a predetermined thickness including at least the first surface of the porous polymer film preferably includes at least one selected from the group consisting of polypropylene, and a copolymer of propylene and another copolymerizable monomer. | 05-03-2012 |
20120107657 | CABLE-TYPE SECONDARY BATTERY - Provided is a cable-type secondary battery including an electrode assembly and a cover member surrounding the electrode assembly, the electrode assembly including first and second electrodes of an elongated shape and a separator or an electrolyte layer interposed between the first and second electrodes, each electrode including a current collector having a cross section of a circular, asymmetrical oval or polygonal shape perpendicular to the lengthwise direction thereof and an electrode active material applied onto the surface of the current collector, wherein the cover member has a preset pattern of continuous or discontinuous scratch grooves on the surface thereof. | 05-03-2012 |
20120107658 | CABLE-TYPE SECONDARY BATTERY - Provided is a cable-type secondary battery including an anode current collector having a horizontal cross section of a predetermined shape and extending longitudinally, an anode active material pattern layer having anode active material patterns spaced away at a predetermined interval on the anode current collector, an electrolyte layer surrounding the anode active material pattern layer and serving as an ion channel, a cathode active material pattern layer having cathode active material patterns spaced away at a predetermined interval on the electrolyte layer at locations corresponding to those of the anode active material patterns, and a cathode current collector surrounding the cathode active material pattern layer. | 05-03-2012 |
20120114995 | Method for Producing Assembled Battery and Assembled Battery - A method for producing an assembled battery, comprising the following steps: (a) producing a plurality of unit cells; (b) arranging the plurality of unit cells in a nested manner such that one unit cell is disposed within another unit cell; and (c) electrically connecting the plurality of unit cells with one another in parallel or in series. The problem that toroidal batteries with high capacity, high power density and small thickness may have a large volume and low energy density is solved by connecting in parallel a plurality of unit cells nested within one another, and heat dissipation of the battery is also further improved. An assembled battery produced by the method is also provided. | 05-10-2012 |
20120121954 | HERMETICALLY SEALED BATTERY AND METHOD FOR MANUFACTURING THE SAME - A sealed battery including: an electrode group | 05-17-2012 |
20120121955 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a positive electrode for non-aqueous electrolyte secondary batteries, the positive electrode including a positive electrode material mixture layer which includes positive electrode active material particles and a binder. A curve representing a correlation between a distance from a current collector in the thickness direction of the positive electrode material mixture layer and an amount of the binder has a first maximum point, a minimum point, and a second maximum point. The minimum point corresponds to a position in a center area of the positive electrode material mixture layer in a thickness direction thereof, and the first and second maximum points correspond to a position nearer the current collector and a position further away from the current collector than the position corresponding to the minimum point, respectively. A ratio W | 05-17-2012 |
20120135285 | NONAQUEOUS ELECTROLYTE BATTERY - There is provided a nonaqueous electrolyte battery including a first electrode having a strip shape, a second electrode having a strip shape, a first electrode lead, a second electrode lead, a separator having a strip shape that is disposed between the first electrode and the second electrode, and a nonaqueous electrolyte. A laminated electrode body, which is obtained by laminating the first electrode and the second electrode through the separator in such a manner that the second electrode lead is disposed at the other end portion of the second electrode not opposite to one end portion of the first electrode to which the first electrode lead is connected, is wound in a longitudinal direction with one end to which the first electrode lead is connected made as an initial end, and a wound electrode body is obtained. | 05-31-2012 |
20120135286 | LITHIUM ION BATTERY - A lithium ion battery is provided comprising a shell, an electric core disposed in the shell with a space formed therebetween, and a non-aqueous electrolyte housed in the shell, in which the space is filled with a non-aqueous electrolyte resistant filler. | 05-31-2012 |
20120141849 | Drop and Vibration Resistant Lithium-Ion Battery - The present invention relates generally to a metal canned battery that does not suffer reduced effectiveness in mechanical reliability upon dropping or vibration. More particularly, the invention pertains to a metal canned battery that has a substance therein that causes the electrode assembly to adhere to the exterior can. In one aspect, the battery is of a winding type wherein a cathode and an anode sheet are wound along with a polymer separator between them to form a jelly roll that is inserted into a cylindrical or prismatic metal can. The jelly roll is wrapped with an adhesive polymer layer or the inner wall of the metal can is coated with an adhesive polymer layer. The polymer layer is capable of swelling in a non-aqueous liquid electrolyte to provide a good adhesive between the metal can and the jelly roll and thereby improve the mechanical reliability and safety of the battery during drop or vibration. | 06-07-2012 |
20120141850 | MIDDLE OR LARGE SIZED BATTERY - Disclosed herein is a middle or large sized battery, more particularly, a middle or large sized battery that provides improved volume energy density provides an advantageous structure for preparing an end cell with large capacity, particularly by improving the structure of a can and internal connecting system of positive and negative electrodes in the middle or large sized battery. According to the present invention, a middle or large sized battery is provided which comprises a can having an open portion formed on two opposing sides; an electrode jelly roll disposed inside the can, and comprising a current collector of positive electrode, a separator, and a current collector of negative electrode being stacked in turn and wound therein; a lead tab connected to the current collector of positive and negative electrodes of opposing sides in the electrode jelly roll; and a lateral cap assembly electrically in contact with the lead tab and coupled to the opposing sides of the can. | 06-07-2012 |
20120148891 | BATTERY - An exemplary battery is provided in the present invention. The battery comprises a carbon rod, a positive-electrode structure, a separation structure, a negative-electrode structure and a housing. The positive-electrode structure, the separation structure, the negative-electrode structure and the housing encircle the carbon rod in sequence. At least one of the positive-electrode structure and the negative-electrode structure contains chlorophyll. The battery of the present invention stores hydrogen by the chlorophyll to generate electricity. Thus, not only is the manufacturing process of the battery simple, and economical, but also natural, non-toxic substances are employed, unlike the conventional batteries, the battery of the present invention will not cause environmental pollution even when discarding after being used. | 06-14-2012 |
20120164501 | SECONDARY BATTERY - A secondary battery includes a wound electrode assembly having a first electrode plate having a non-coating portion, a second electrode plate having a non-coating portion, and a separator between the first electrode plate and the second electrode plate; a collecting plate having a track accommodating and electrically coupled to the non-coating portion of one of the electrode plates; a case housing the electrode assembly and the collecting plate, the case comprising an upper opening; and a cap assembly sealing the upper opening of the case. | 06-28-2012 |
20120164502 | GALVANIC ELEMENT AND SEPARATOR HAVING IMPROVED SAFETY PROPERTIES - A galvanic element has a positive electrode, a negative electrode and a separator lying in between, wherein the separator consists at least partially of a polymer of which the melting and/or softening temperature is >200° C. A multi-layer separator for galvanic elements, in particular for lithium-ion batteries, includes at least one layer of the polymer with a melting and/or softening temperature >200° C. | 06-28-2012 |
20120164503 | FLAT NONAQUEOUS SECONDARY BATTERY - A flat nonaqueous secondary battery including: a positive electrode plate including a positive electrode active material; a negative electrode plate including a negative electrode active material; and a porous insulator arranged between the positive electrode plate and the negative electrode plate, wherein an electrode stack including the positive electrode plate and the negative electrode plate stacked with the porous insulator interposed therebetween is wound three or more times to form an electrode group which is flat when viewed in cross section, the electrode group includes a flat straight part, and a pair of curved parts, the electrode group is fixed with a fixing member not to become loosened, at least two gaps are provided between adjacent turns of the electrode stack in each of the curved parts, and one of the at least two gaps adjacent to each other inside the other gap is larger than the other gap. | 06-28-2012 |
20120171535 | Nickel-zinc battery and manufacturing method thereof - A cylindrical Ni—Zn battery includes a battery shell, an electrode assembly and a liquid electrolyte which are sealed within the shell. The electrode assembly, whose upper part is connected to a cap, includes a nickel cathode, zinc anode, and a composite membrane. The nickel cathode and zinc anode have an edge portion which are externally exposed and bent inwardly to form the anode and cathode conductive end respectively, and edges of the composite membranes are sealed together, so that the electrodes are contained in the membranes. The battery is characterized by the simple in structure, convenient installation, low cost, safety, characteristics of long-term storage, effectively preventing the growth of dendrite, long life, strong capability to resist shake, and good performance of large current discharging. | 07-05-2012 |
20120171536 | NON-AQUEOUS SECONDARY BATTERY AND ELECTRODE ASSEMBLY USED THEREFOR - A non-aqueous secondary battery including: a positive electrode plate including a positive electrode current collector in long strip form, and a positive electrode active material layer adhering to the surface of the positive electrode current collector; a negative electrode plate including a negative electrode current collector in long strip form, and a negative electrode active material layer adhering to the surface of the negative electrode current collector; a porous insulating layer interposed between the positive electrode plate and the negative electrode plate; a non-aqueous electrolyte; and a spacer in film form disposed at least between the positive electrode plate and the porous insulating layer or between the negative electrode plate and the porous insulating layer, the spacer being constituted of a resin dissolvable in the non-aqueous electrolyte. | 07-05-2012 |
20120171537 | MOLTEN SALT BATTERY - Provided is a molten salt battery which can be stably charged and discharged. A separator | 07-05-2012 |
20120177963 | JELLY-ROLL OF IMPROVED STRUCTURE AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a jelly-roll type electrode assembly (“jelly-roll”) configured by winding a cathode having a cathode active material coated portion formed at at least one side of a cathode current collector and an anode having an anode active material coated portion formed at at least one side of an anode current collector in a state in which the cathode and the anode are opposite to each other via a separator, wherein a cathode tab mounted at an uncoated portion of the cathode so that the cathode tab is inclined upward at a predetermined angle to a longitudinal direction of the cathode and an anode tab mounted at an uncoated portion of the anode so that the anode tab is inclined upward at a predetermined angle to a longitudinal direction of the anode are located so as to be adjacent to each other. | 07-12-2012 |
20120183825 | SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - An embodiment is directed to a battery, including a housing, an electrode assembly in the housing, the electrode assembly including a first electrode member, a separator, and a second electrode member wound about a first axis, the first axis extending in a first direction, the electrode assembly having a thickness in a second direction orthogonal to the first direction and having a length in a third direction orthogonal to the first and second directions, the length being greater than the thickness, the electrode assembly having a curvature about a second axis that is parallel to the first axis, and first and second electrode tabs, the first electrode tab and the second electrode tab being connected to the first electrode member and the second electrode member, respectively, the first and second electrode tabs protruding from the electrode assembly in a direction orthogonal to the first direction. | 07-19-2012 |
20120189888 | BATTERY CELL OF A LITHIUM ION BATTERY - A battery cell of a lithium ion battery includes a cathode plate and an anode plate spirally wounded together with a separator interposed therebetween. The cathode plate includes a cathode current collector and a cathode film containing cathode active material formed on the cathode current collector. The cathode current collector defines an exposed portion without cathode film formed thereon. The anode plate includes an anode current collector and an anode film containing anode active material formed on the anode current collector. Boundary of the exposed portion of the cathode current collector is formed with an insulatively isolating layer. | 07-26-2012 |
20120189889 | SECONDARY BATTERY - A secondary battery including an electrode assembly wound about an axis extending in a first direction and including a coating portion having an active material thereon, and a non-coating portion at a first end of the electrode assembly along the first direction; a can containing the electrode assembly; a cap plate sealing an opening of the can; a terminal protruding outside the can; and a flexible current collector electrically connected between the non-coating portion of the electrode assembly and the terminal. | 07-26-2012 |
20120189890 | FLAT-WOUND ELECTRICITY STORAGE DEVICE CELL AND FLAT-WOUND ELECTRICITY STORAGE DEVICE MODULE - A cathode terminal includes a cathode collector foil connector connected to the blank of a cathode collector foil, a cathode terminal external lead-out portion, and an intra-cell cathode terminal radiator located between the cathode collector foil connector and the cathode terminal external lead-out portion and covering approximately half of one of the wide side surfaces of a flat-wound electrode portion. An anode terminal includes an anode collector foil connector connected to the blank of an anode collector foil, an anode terminal external lead-out portion, and an in-cell anode terminal radiator located between the anode collector foil connector and the anode terminal external lead-out portion and substantially covering a remaining portion of the one of the wider side surfaces of the flat-wound electrode portion. | 07-26-2012 |
20120189891 | CATHODE ACTIVE MATERIAL, CATHODE, AND NONAQUEOUS ELECTROLYTE BATTERY - A cathode active material has: a lithium composite oxide which contains the highest proportion of nickel among constituent metal elements except lithium; and a phosphorus compound which is contained near the surface of the lithium composite oxide, and a cathode including the cathode active material. | 07-26-2012 |
20120196165 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING ELECTRODE ASSEMBLY - Provided is a secondary battery that can raise the strength of a case by including an electrode assembly that has a negative electrode plate in the outermost part. For example, illustrated is an electrode assembly including a negative electrode plate comprising a negative electrode collector, the negative electrode collector having a first negative electrode coating portion disposed on a side of the negative electrode collector and a second negative electrode coating portion disposed on the other side of the electrode collector, a positive electrode plate including a positive electrode collector, the positive electrode collector having a first positive electrode coating portion disposed on a side of the positive electrode collector and a second positive electrode coating portion disposed on the other side of the electrode collector, and a separator disposed between the negative electrode plate and the positive electrode plate, wherein the negative electrode plate is disposed in the outermost part when the negative electrode plate, the positive electrode plate, and the separator are wound. | 08-02-2012 |
20120196166 | Secondary battery - A secondary battery includes a plurality of electrode assemblies, a current collector electrically connected to each of the electrode assemblies, a case accommodating the plurality of electrode assemblies and the current collector, a cap plate sealing the case, and an electrode terminal electrically connected to the current collector and penetrating the cap plate, wherein the plurality of electrode assemblies are arranged such that an axis of each electrode assembly is parallel to a bottom surface of the case and the plurality of electrode assemblies are disposed in a longitudinal direction. | 08-02-2012 |
20120196167 | ELECTRODE ASSEMBLY FOR A BATTERY AND METHOD FOR MANUFACTURING SAME - The present invention provides an electrode assembly, which can be manufactured by alternately stacking cathode plates and anode plates while interposing a separator therebetween, and winding or folding the separator in one or both directions, and to a manufacturing method thereof. According to the invention, both sides or the lower sides of both edges of a cathode current collector is exposed to create a level difference between the edges and a cathode conductive layer, thereby forming a level-difference portion, and an adhesive is applied to the level-difference portion which is then adhered to a separator, whereby the thickness of the battery can be prevented from increasing due to the adhesive during the manufacture of the battery, and the assembly of the battery can be facilitated. Also, a level-difference portion may be formed at an anode current collector, thereby effectively preventing the thickness of the battery from being increased due to the build up of the adhesive. Thus, the performance of the battery can be prevented from being deteriorated due to the application of the adhesive, and the ability to be impregnated with an electrolytic solution can also be maintained intact. | 08-02-2012 |
20120202097 | LITHIUM ION SECONDARY CELL - In a lithium ion secondary cell including a wound group | 08-09-2012 |
20120208055 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly includes first and second electrode plates respectively comprising first and second active material portions on which first and second active materials are coated and first and second non-coating portions on which the first and second active materials are not coated; a separator interposed between the first and second electrode plates; and first and second electrode tabs respectively coupled to the first and second non-coating portions. In the electrode assembly, portions of the first and second non-coating portions are opposite to each other but the first and second electrode tabs are not opposite to each other in the electrode plates. The electrode assembly is formed by winding the first and second electrode plates from the portion at which the first and second non-coating portions are opposite to each other. A secondary battery includes the electrode assembly and a case accommodating the electrode assembly therein. | 08-16-2012 |
20120208056 | SECONDARY BATTERY - A battery including: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead joined to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body. | 08-16-2012 |
20120214036 | RECHARGEABLE BATTERY - In one aspect, a rechargeable battery for efficiently controlling a composite thickness on both edges of a coated unit when an uncoated region on an edge of an electrode plate is used for an electrode assembly is provided. The rechargeable battery can include: an electrode assembly including electrodes with opposite polarities on both ends of a separator; and an electrode terminal connected to the electrode assembly wherein the electrode includes a coated unit coated with a composite on an electrode plate and an uncoated region set on an edge of the electrode plate exposed on the coated unit. | 08-23-2012 |
20120214037 | LITHIUM SECONDARY BATTERY - The present invention provides a lithium secondary battery having: an electrode body ( | 08-23-2012 |
20120219835 | PRESSURE-SENSITIVE ADHESIVE TAPE FOR BATTERY AND BATTERY USING THE PRESSURE-SENSITIVE ADHESIVE TAPE - The present invention relates to a pressure-sensitive adhesive tape for battery containing: a substrate; and a pressure-sensitive adhesive layer provided on at least one side of the substrate, in which the pressure-sensitive adhesive tape has a thickness change ratio of 20% or less after immersion in a mixed solvent of ethylene carbonate/diethyl carbonate [former/latter (volume ratio)=1/1] at 60° C. for 8 hours; and a 180° peeling adhesive strength (against aluminum foil, peel temperature: 25° C., peel rate: 300 mm/minute) of 0.5 N/10 mm or more after the above immersion. | 08-30-2012 |
20120225336 | BATTERY UNIT AND LITHIUM SECONDARY BATTERY EMPLOYING THE SAME - A battery unit and a lithium secondary battery employing the same are provided. The battery unit includes a positive electrode plate having a positive current collector and a positive active material layer formed on at least one plane of the positive current collector, a positive electrode lead electrically connected with the positive current collector, a negative electrode plate having a negative current collector and a negative active material layer formed on at least one plane of the negative current collector, a negative electrode lead electrically connected with the negative current collector, and a separator interposed between the positive electrode plate and the negative electrode plate, having a width greater than that of each electrode plate, and having different widths of protruding portions which stick out on either side of the electrode plate. | 09-06-2012 |
20120225337 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - A non-aqueous electrolyte secondary battery comprising: an electrode group in which a long first electrode, a long second electrode, and a long separator disposed therebetween are wound spirally; and a non-aqueous electrolyte, is provided. The first electrode includes a sheet-like first current collector and a first active material layer disposed on a surface of the first current collector. The second electrode includes a sheet-like second current collector and a second active material layer disposed on a surface of the second current collector. An end portion of the first electrode on a winding-end side of the electrode group has a non-linear form and faces the second electrode placed on an outer circumferential side with the separator therebetween. The non-linear form is preferably a periodically continuous form, for example a waveform. | 09-06-2012 |
20120237809 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - There are provided an electrode assembly and a secondary battery using the same. An electrode assembly includes a first electrode plate having a first non-coating portion formed along one end portion in a length direction thereof; a second electrode plate having a second non-coating portion formed along the other end portion opposite to the first non-coating portion; and a separator interposed between the first and second electrode plates. In the electrode assembly, the first electrode plate, the second electrode plate and the separator are wound in a jelly-roll shape, and the electrode assembly further includes a clamping member that fixes at least one of the first and second non-coating portions. Accordingly, although the thickness of an electrode tab is increased, it is possible to simply manufacture high-power, high-capacity medium- and large sized batteries. | 09-20-2012 |
20120237810 | ELECTRIC STORAGE DEVICE - An electric storage device, includes an electrode assembly that includes a positive electrode and a negative electrode each including a current collector provided with an active material layer on a surface thereof except one end, the positive electrode and the negative electrode being wound or stacked with a separator interposed therebetween, wherein one end of one of the positive electrode and the negative electrode on at least one side of the electrode assembly protrudes, as active material layer-unformed parts, from a side end of the remaining electrode different in polarity; a case for housing the electrode assembly with the protruding direction of the one end oriented sideways; and an electrolytic solution being reserved in the case, wherein the active material layer-unformed parts include electrolytic solution-sucking-up layers that are porous and are formed along a direction orthogonal to the protruding direction of the one end. | 09-20-2012 |
20120237811 | LITHIUM ION BATTERY - A lithium ion battery includes an anode plate and a cathode plate spirally coiled with a separator set between the anode plate and the cathode plate. The cathode plate includes a cathode current collector and a cathode film on the cathode current collector. The cathode current collector is formed with a number of cathode extending portions along a length direction thereof. The anode plate includes an anode current collector and an anode film on the anode current collector. The anode current collector is formed with a number of anode extending portions along a length direction thereof. After the cathode plate, the anode plate and the separator are coiled as a battery cell, the cathode extending portions are combined to form a cathode lead, and the anode extending portions are combined to form an anode lead. Before manufacture, the compacted cathode plate/anode plate is baked. | 09-20-2012 |
20120244402 | SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY - A secondary battery includes a power generating electrode body, which is formed by stacking power generating elements having a separator, and a frame storing the stacked power generating electrode body wherein the power generating electrode body is stored in the frame in such a state that an electrolyte penetrates the separator at a predetermined speed and the separator is impregnated with the electrolyte supplied to the power generating electrode body in such a state that the inside of the frame is depressurized by a decompression device, and the frame sealed by a lid body while being depressurized is pressed from the stacking direction of the power generating elements by a pressing device, whereby the frame is formed into a predetermined shape. | 09-27-2012 |
20120251860 | Lithium-Iron Disulfide Cell Design - The invention relates to primary electrochemical cells, in addition to methods for manufacturing and discharging the same, having a jellyroll electrode assembly that includes a positive electrode with a coating comprising iron disulfide deposited on a current collector situated on the outermost circumference of the jellyroll, a lithium-based negative electrode and a polymeric separator. More particularly, the invention relates to a cell design which optimizes cell capacity and substantially eliminates premature voltage drop-off on intermittent service testing by eliminating the edge effect through, for example, deliberately relieving stack pressure and/or extending the distance lithium ions proximate to the terminal end of the positive electrode must travel to undergo an electrochemical reaction in that region. | 10-04-2012 |
20120258342 | ELECTRIC STORAGE DEVICE PROVIDED WITH CURRENT COLLECTING MEMBER, AND METHOD FOR MANUFACTURING CURRENT COLLECTING MEMBER - A current collecting member includes first and second portions. The second portion includes a base portion the first end portion of which is connected to the second end portion of the first portion, a twisted portion the first end portion of which is connected to the second end portion of the base portion, and an insertion portion the first end portion of which is connected to the second end portion of the twisted portion and which is inserted into a winding center of the electrode assembly, so as to be electrically connected to the electrode assembly. | 10-11-2012 |
20120258343 | LITHIUM SECONDARY BATTERY - A lithium secondary battery obtained by the present invention has a negative electrode sheet | 10-11-2012 |
20120258344 | RAPIDLY RECHARGEABLE BATTERY - Design of a rapidly rechargeable gas battery is disclosed. In one embodiment, a rapidly rechargeable gas battery is constructed of a plurality of high surface area, gas adsorbing electrodes and an electrolyte, wherein, during charging operation, gases are formed and adsorbed at the plurality of electrodes such that they generate an electrochemical potential for discharge of the cell formed by electrodes and electrolyte until the state-of-charge has become negligible (deep discharge). The rapidly rechargeable gas battery is designed such that it can withstand high charging current and a deep discharge without irreversible changes in the electrode materials. | 10-11-2012 |
20120263987 | HIGH ENERGY LITHIUM ION SECONDARY BATTERIES - Lithium ion secondary batteries are described that have high total energy, energy density and specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. The improved batteries are based on high loading of positive electrode materials with high energy capacity. This capability is accomplished through the development of positive electrode active materials with very high specific energy capacity that can be loaded at high density into electrodes without sacrificing performance. The high loading of the positive electrode materials in the batteries are facilitated through using a polymer binder that has an average molecular weight higher than 800,000 atomic mass unit. | 10-18-2012 |
20120270084 | SECONDARY BATTERY STRUCTURE - A secondary battery structure includes a jar body, a conductive stacked structure, and two end covers. The conductive stacked structure is configured in the jar body and at least includes a battery unit. The two end covers are respectively fixed at two ends of the jar body. The end covers are assembled to the jar body by inward compression in order to eliminate dimension errors of the conductive stacked structure in the jar body. The diameter of each end cover is smaller than or substantially equal to the inner diameter of the jar body. | 10-25-2012 |
20120270085 | SECONDARY BATTERY - By combining crimping fixing and laser welding, a collector attached to a substrate of an electrode assembly is fixed to a terminal. A negative electrode terminal | 10-25-2012 |
20120276429 | SPIRALLY-ROLLED ELECTRODES WITH SEPARATOR AND THE BATTERIES THEREWITH - Spirally-rolled electrodes for batteries wherein the electrodes having a concentric circle shape or an elliptic shape with positive electrode and negative electrode wound spirally via a separator therebetween has the characteristics as below:
| 11-01-2012 |
20120295144 | ANODE FOR CABLE-TYPE SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY INCLUDING THE ANODE - Disclosed is an anode for a lithium secondary battery. The anode includes a current collector in the form of a wire and a porous anode active material layer coated to surround the surface of the current collector. The three-dimensional porous structure of the active material layer increases the surface area of the anode. Accordingly, the mobility of lithium ions through the anode is improved, achieving superior battery performance. In addition, the porous structure allows the anode to relieve internal stress and pressure, such as swelling, occurring during charge and discharge of a battery, ensuring high stability of the battery while preventing deformation of the battery. These advantages make the anode suitable for use in a cable-type secondary battery. Further disclosed is a lithium secondary battery including the anode. | 11-22-2012 |
20120295145 | ELECTRODE ASSEMBLY AND LITHIUM RECHARGEABLE BATTERY USING THE SAME - An electrode assembly comprising an electrode tab or an electrode plate substrate which has an identification mark formed thereon and a lithium rechargeable battery using the same are disclosed. This identification mark makes it possible to easily check the record of the manufacturing processes of the battery, including production equipment, production date, line operators, and production lines when a battery malfunctions. This identification mark may prevent a replica of the defective component from being manufactured. | 11-22-2012 |
20120301759 | ELECTRIC STORAGE DEVICE AND INSULATION COVER - An electric storage device includes: an electrode assembly including a positive electrode sheet, a negative electrode sheet, and a separator for insulating between the electrode sheets; positive and negative current collectors disposed on both ends of the electrode assembly; a case in which the electrode assembly and the current collectors are housed and that fixes one ends of the positive and negative current collectors; and a support member extending from the positive current collector to the negative current collector. | 11-29-2012 |
20120301760 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY WITH AN ELECTROLYTE INCLUDING A LITHIUM BORON COMPOUND - A nonaqueous electrolyte secondary battery has a positive electrode containing a lithium complex oxide, a negative electrode which adsorbs/desorbs lithium, and an electrolyte, and not less than 0.1% by mass and not more than 2% by mass of one or more kinds of compounds selected from LiFOB and LiBOB, or not less than 0.01% by mass and not more than 2% by mass of LiBF | 11-29-2012 |
20120301761 | BATTERY CELL AND DEVICE PROVIDED WITH THE BATTERY CELL - The battery cell have a first and a second current collector, wherein the first current collector is connected to part of both of, part of any one of, or the whole of any one of a pair of positive-electrode layer stack sections of an electrode assembly, the second current collector is connected to part of both of, part of any one of, or the whole of any one of a pair of negative-electrode layer stack sections, and a connecting location between the first current collector and the positive-electrode layer stack sections and a connecting location between the second current collector and the negative-electrode layer stack sections are set so as to be asymmetrical to each other with respect to a second virtual plane. | 11-29-2012 |
20120308861 | METHOD OF MAKING ELECTRODES WITH DISTRIBUTED MATERIAL LOADING USED IN ELECTROCHEMICAL CELLS - A method of making electrodes with distributed material loadings used in rechargeable electrochemical cells and batteries is described. This method controls electrode material loading (mass per unit area) along the electrode's length while maintaining uniform compaction throughout the electrode. Such prepared electrode maintain sufficient mechanical flexibility for winding and are compact and robust to have high energy density and long cycle life in rechargeable cells and batteries. | 12-06-2012 |
20120308862 | BATTERY, MANUFACTURING METHOD OF THE SAME, AND MANUFACTURING APPARATUS OF THE SAME - A battery includes a positive plate, a negative plate and an insulative separator disposed between the positive plate and the negative plate. Each of the positive plate and the negative plate has a collector and an electrode layer disposed on a surface of the collector. The electrode layer contains an active material. At least one of the positive plate and the negative plate has cracks in a whole area of the electrode layer thereof or at a part of the electrode layer thereof, the part being away from a connector of the one to be coupled to an electrode at least by a predetermined distance. For example, the cracks are formed by drying the electrode layer at a predetermined drying rate. | 12-06-2012 |
20120308863 | WOUND TYPE BATTERY AND METHOD FOR FABRICATING SAME | 12-06-2012 |
20120315523 | ELECTROCHEMICAL CELLS WITH IMPROVED SPIRAL-WOUND ELECTRODE ASSEMBLY - A spiral-wound electrode assembly, an electrochemical cell with the spiral-wound electrode assembly, and a method of manufacturing an electrochemical cell with the spiral-wound electrode assembly are disclosed. The spiral-wound electrode assembly has a first electrode that has a first electrode active material, a leading edge and a trailing edge. The assembly has a second electrode that includes a second electrode active material, a leading edge and a trailing edge. A separator is located between the first electrode and the second electrode. The electrode assembly has an interfacial anode-to-cathode ratio of less than about 1.2. The first electrode, second electrode, and separator are wound so that the first electrode forms a layer at the outermost radius of the electrode assembly and so that the trailing edge of the second electrode extends past the trailing edge of the first electrode. | 12-13-2012 |
20120315524 | Negative Electrode for a Nickel-Hydrogen Rechargeable Battery and a Nickel-Hydrogen Rechargeable Battery Using the Same - A negative electrode for a nickel-hydrogen rechargeable battery is a strip-shaped negative electrode, the negative electrode being formed of a core body and a negative mixture layer covering the core body and containing hydrogen-storage alloy particles, including a main section, both sides of which face the positive electrode with the separator intervening therebetween as viewed in a rolled state where the negative electrode forms the electrode group with the positive electrode and the separator, and an outermost circumferential portion and an innermost circumferential portion that are protruding from ends of the main section in a rolling direction and facing the positive electrode with the separator intervening therebetween only with one side, wherein the hydrogen-storage alloy particles contained in the outermost circumferential portion and the innermost circumferential portion have an average diameter larger than an average diameter of the hydrogen-storage alloy particles contained in the main section. | 12-13-2012 |
20120315525 | SQUARE BATTERY AND MANUFACTURING METHOD OF THE SAME - A positive electrode sheet and a negative electrode sheet are laminated and wound around a shaft core | 12-13-2012 |
20120315526 | SEALED BATTERY - A sealed battery including: an electrode assembly | 12-13-2012 |
20120321923 | SECONDARY BATTERY - A secondary battery including: an electrode assembly including first and second electrode plates and a separator interposed between the electrode plates; and a battery case housing the electrode assembly, in which an end portion of the separator which is disposed at the outermost portion of the electrode assembly is housed toward a gas discharging direction. | 12-20-2012 |
20120321924 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - A secondary battery includes a jelly roll including a positive and negative electrode plates respectively having positive and negative electrode non-coating portions and at least one separator; positive and negative electrode terminals each having a contact portion, an electrode terminal and an extending portion; elastic members respectively provided between the positive and negative electrode non-coating portions and the contact portions; an outer case that accommodates the jelly roll and the terminal portions in the state that the outer case is connected to the negative electrode terminal portion; a cap plate that seals the outer case; a support portion that supports and insulates the contact portion of each of the terminal portions respectively provided at both ends of the jelly roll; and a positive lead provided in the state that the positive electrode lead is insulated from the cap plate, and electrically connected to the positive electrode terminal portion. | 12-20-2012 |
20120328921 | CURRENT COLLECTOR AND METHOD FOR PRODUCING THE SAME, BATTERY AND METHOD FOR PRODUCING THE SAME - The present invention provides a current collector, a battery including the current collector, which are capable of increasing energy density or output density and improving productivity or stability; it also provides a method for producing the current collector and a method for producing the battery. The current collector comprises: an insulating substrate; and electron-conducting portions respectively disposed on one face and the other face of the insulating substrate, at least two of the electron-conducting portions being disposed in a planar direction on the one face of the insulating substrate, the electron-conducting portions which is disposed on the other face of the insulating substrate being disposed in a manner to face at least one of the electron-conducting portions disposed on the one face of the insulating substrate so that the insulating substrate is interposed therebetween, and the electron-conducting portions disposed on the one face of the insulating substrate and the electron-conducting portions disposed on the other face of the insulating substrate, both of which face each other with the insulating substrate interposed therebetween, are connected to each other via electron conductors disposed in holes penetrating the insulating substrate. | 12-27-2012 |
20120328922 | ELECTROCHEMICAL CELL HAVING INTERRUPTED ELECTRODES - Provided herein are electrochemical cell element systems. One such system includes a first electrode having a desired length and an interrupted second electrode having one or more interruptions disposed between a plurality of electrode segments. The system also includes one or more separators positioned to separate the first electrode and the interrupted second electrode. The first electrode, the interrupted second electrode, and the one or more separators are wound along the length of the cell element. | 12-27-2012 |
20120328923 | ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - The present invention provides a negative-electrode material for a lithium secondary battery which has a very low resistance, allows the lithium secondary battery to be charged and discharged (high output) at a high current and have a high capacity, and achieve a cycle life to such an extent that the lithium secondary battery can be mounted on a vehicle. The electrode material is composed of (a) at least one active substance ( | 12-27-2012 |
20120328924 | BATTERY - A battery outer covering for housing the winding-type power generating element is formed by an outer covering main body having an open face and a lid body for closing the open portion of the outer covering main body. The current collecting members and external terminals are disposed inside and outside the lid body. The current collecting members are fixed to the lid body and electrically connected to the external terminals. The power generating element includes a winding core which serves as a winding center of the electrode sheets and has rigidity. The power generating element has the winding core having the rigidity at a winding center. At least one end of the winding core is supported on an inner wall face of the outer covering main body. | 12-27-2012 |
20130004814 | ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING ELECTROCHEMICAL DEVICE - An electrochemical device includes a wound laminated body with first and second electrodes, first and second separators, an electrolytic solution; and an outer package that houses the wound body and the electrolytic solution. The electrochemical device satisfies, at an outer end of the laminated body in a winding direction: the first and second separators protrude more outward in the winding direction than the second electrode; the first electrode protrudes more outward in the winding direction than the first and second separators; and an outer end of the first separator in the winding direction inclines toward a winding center and comes into contact with an upper surface of the second separator beyond the second electrode and an outer end of the first electrode in the winding direction inclines toward the winding center and comes into contact with the second separator and with the peripherally inner first electrode beyond the second electrode. | 01-03-2013 |
20130004815 | BATTERY AND MANUFACTURING METHOD THEREOF - A battery includes a plurality of power generating elements each including: a cathode layer; an anode layer; an electrolyte layer disposed between the cathode layer and the anode layer; a cathode current collector connected to the cathode layer; and an anode current collector connected to the anode layer, wherein the plurality of power generating elements are wound or folded; and the cathode current collector included in one of the power generating elements and the anode current collector included in another power generating element adjacent to that power generating element are directly or indirectly connected to each other in the entire longitudinal direction of the cathode current collector and the anode current collector before and after the power generating elements are wound or folded. | 01-03-2013 |
20130004816 | Battery Electrodes - A cathode includes a foil current collector including a coating containing iron disulfide on one side that covers less than 100% of the side. | 01-03-2013 |
20130004817 | ELECTRODE ASSEMBLY AND METHOD FOR CONSTRUCTING THE SAME - A jelly-roll type electrode assembly is disclosed. The jelly-roll type electrode assembly includes an anode, a cathode, and separators interposed between the anode and the cathode and having a greater length than width. Each of the separators is longer than the anode and the cathode. Each of the separators has a porous substrate and porous coating layers formed on both surfaces of the porous substrate. The porous coating layers include a mixture of inorganic particles and a binder polymer. The porous coating layers are formed only in areas where the separators are in contact with the anode and the cathode. The porous coating layers enhance the heat resistance of the separators. Due to the enhanced heat resistance, the separators can prevent the performance of a battery from deteriorating. In addition, the porous coating layers can be prevented from being separated from the separators during battery assembly processing. | 01-03-2013 |
20130011707 | WINDING-TYPE ELECTRIC STORAGE DEVICE - An object is to provide a winding-type electric age device capable of preventing swaying or movement of an electrode assembly. Provided is a winding-type electric storage device with a flat electrode assembly, which includes a core, and a case in which the electrode assembly is housed, the core including first and second curved sections which are disposed so that the inner circumferential surfaces thereof face to each other, and each of which is at least in part composed of a material stacked into two or more plies, and first and second opposed sections which connect the mutually-opposed first ends and second ends of the first and second curved sections to each other. | 01-10-2013 |
20130011708 | LITHIUM ION SECONDARY BATTERY, VEHICLE, AND BATTERY MOUNTING DEVICE - A lithium ion secondary battery includes a flat wound electrode body including a positive electrode sheet and a negative electrode sheet that are wound while interposing therebetween separators into a flat shape, and a battery case. In the flat wound electrode body, a central portion has a more constricted shape than end portions by pressing toward a winding axis in a short-side direction and each end portion includes an end-portion positive electrode sheet, an end-portion negative electrode sheet, and end-portion separators, and a core member arranged more inward than them. With tensile forces generated by pressing of the central portion in a central-portion positive electrode sheet, central-portion negative electrode sheet, and central-portion separators, the end-portion positive electrode sheet, end-portion negative electrode sheet, and end-portion separators are in pressure contact with each other and press the outer surfaces of the core member. | 01-10-2013 |
20130011709 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, VEHICLE, AND DEVICE USING BATTERY - Disclosed is a nonaqueous electrolyte secondary battery which comprises a flat wound electrode body wherein a positive electrode plate, which comprises a positive electrode collector foil and a positive electrode active material layer, and a negative electrode plate, which comprises a negative electrode collector foil and a negative electrode active material layer, are wound up with a separator being interposed therebetween. The positive electrode plate has a collector cover layer that has electrical insulation properties and covers at least a part of a facing collector portion in the longitudinal direction in a positive electrode collector portion. The collector cover layer covers at least an innermost semi-cylindrical facing collector portion which forms the innermost part of the facing collector portion and has a half-cylindrical shape. | 01-10-2013 |
20130017424 | SECONDARY BATTERY - A secondary battery comprises: an electrode assembly comprising a first plate, a second plate, and a separator disposed between the first and second plates, wherein the first plate comprises an active portion and a non-active portion extending from the active portion, wherein the second plate comprises an active portion and a non-active portion extending from the active portion; a ceramic material disposed on the non-active portion of the first plate; and a battery case housing the electrode assembly. | 01-17-2013 |
20130017425 | Storage Battery Cell, Assembled Battery, Assembled Battery Setup Method, Electrode Group, and Production Method of Electrode GroupAANM WATANABE; ErikaAACI Mito-shiAACO JPAAGP WATANABE; Erika Mito-shi JPAANM Togashi; ShigenoriAACI Abiko-shiAACO JPAAGP Togashi; Shigenori Abiko-shi JP - A storage battery cell includes: an electrode group in which a positive electrode including positive electrode current collector foil provided with a positive electrode layer containing a positive electrode active material, a negative electrode including negative electrode current collector foil provided with a negative electrode layer containing a negative electrode active material, and a separator that intervenes between the positive electrode and the negative electrode are laminated; a battery cell container; and an electrolyte, wherein: the positive electrode active material and the negative electrode active material respectively are substantially uniformly distributed, and the positive electrode layer and the negative electrode layer are provided respectively with regions in which respective quotients of the positive active material and the negative active material in the electrolyte are varied. | 01-17-2013 |
20130034760 | BIOCOMPATIBLE WIRE BATTERY - A rechargeable electrochemical battery in the form of a single or multi-stranded wire assembly may be utilized as a power source for any number of implantable or non-implantable medical devices. As the wire form battery may be scaled to micro size, it may be utilized to power medical devices that were traditionally non-active devices, but which may be enhanced with active components. The wire form battery may be cut to size for a particular application which provides the same open circuit voltage regardless of how the wire is ultimately configured and the length of the wire utilized. Although the battery is in wire form, various arrangements of the components within the battery are also possible. | 02-07-2013 |
20130034761 | Electrochemical Cell with Improved Internal Contact - Electrochemical battery cells with strip-like electrodes and having a pressure contact between a lead from one of the electrodes and a sidewall of the cell container. An electrochemical cell having a spiral wound electrode assembly having an internal lead in direct pressure contact with a lithium foil negative electrode free of a separate current collector and in contact with an inner portion of the cell container, wherein specified contact between the lead and lithium foil provides current flow between the container and foil. | 02-07-2013 |
20130034762 | High Discharge Capacity Lithium Battery - A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode. | 02-07-2013 |
20130040178 | RECHARGEABLE BATTERY - A rechargeable battery includes a plurality of electrode assemblies including positive and negative electrodes separated by a separator and a pair of electrode tabs protruding to both sides. A case receives the plurality of electrode assemblies. First and second current collecting plates cover openings formed on both sides of the case. First and second insulation plates are respectively disposed between the plurality of electrode assemblies and the first and second current collecting plates. The pair of electrode tabs at one side of the electrode assemblies pass through a first through hole formed in the first insulation plate and the pair of electrode tables at the other side of the electrode assemblies pass through a second through hole formed in the second insulation plate. | 02-14-2013 |
20130045405 | SECONDARY BATTERY - The secondary battery includes an electrode assembly including a first electrode plate and a second electrode plate whereon first and second electrode active materials, and first and second electrode tabs are formed, respectively, and including a separator disposed between the first and second electrode plates while overlapping with the first and second electrode plates; and a planarizing member disposed on at least one of first and second ends that are opposite to each other in a longitudinal direction of the electrode assembly, wherein the planarizing member covers a stepped surface exposed on the at least one of the first and second ends so as to planarize the stepped surface. In the secondary battery, the stepped surface of an end of the electrode assembly is planarized. | 02-21-2013 |
20130045406 | SECONDARY BATTERY - A secondary battery is disclosed. The secondary battery includes an electrode assembly comprising a first electrode plate and a second electrode plate that are rolled while having a separator interposed therebetween; and a finishing or protective conductive member formed on a periphery of the electrode assembly so as to surround a roll end of the electrode assembly, wherein the finishing member comprises a conductive layer that forms a conductive contact with a roll end of the first electrode plate and that is disposed to face a roll end of the second electrode plate. The secondary battery forms a short circuit path between positive and negative electrodes when the secondary battery is penetrated, and thus the secondary battery provides an improved degree of safety against a penetration shock caused by an external shock or a penetration test. | 02-21-2013 |
20130059183 | LITHIUM POLYMER BATTERY - A lithium polymer battery including: an electrode assembly including: a first electrode plate including a first electrode current collector electrically connected to a first electrode tab and a first electrode active material layer formed on at least one surface of the first electrode current collector, a second electrode plate including a second electrode current collector that is electrically connected to a second electrode tab and a second active material layer formed on at least one surface of the second electrode current collector, and a separator interposed between the first electrode plate and the second electrode plate; and a case for housing the electrode assembly, wherein the separator is attached to a portion of a first electrode uncoated area of a first electrode uncoated area of the first electrode current collector to prevent a short between the first electrode plate and the second electrode plate. | 03-07-2013 |
20130059184 | NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, a non-aqueous electrolyte battery includes an electrode group. The electrode group includes a positive electrode and a negative electrode. At least one of the positive electrode or the negative electrode has a first electrode part and a second electrode part. The first electrode part includes a first metal substrate and an active material-containing part. The second electrode part includes a second metal substrate and an active material-containing part. The first metal substrate has a tensile strength larger than a tensile strength of the second metal substrate. A part of the first electrode part is provided more outside of the electrode group than a part of the second electrode group. | 03-07-2013 |
20130071710 | SECONDARY BATTERY - In a lithium-ion secondary battery ( | 03-21-2013 |
20130071711 | BATTERY - The present invention provides a battery includes an exterior body formed of a laminate film, the exterior body | 03-21-2013 |
20130071712 | BATTERY - The invention allows a positive electrode plate and a negative electrode plate of a power generating element of a battery to function as effectively as possible. In the battery including the power generating element formed by winding the foil-shaped positive electrode plate | 03-21-2013 |
20130078491 | SECONDARY BATTERY ASSEMBLY - A secondary battery assembly of the present invention comprises: a secondary battery including a wound electrode body enclosed in a flat rectangular case; a contact member partly contacting a side surface having a maximum area (pressed surface) of outer surfaces of the battery; and a binding member for binding the battery and the contact member, the binding member binding the contact member to partly press against the pressed surface. The contact member includes: a plurality of contact parts arranged discretely, each contact part being in contact with the pressed surface; and a connecting part connecting the contact parts. The contact parts are protruding from the connecting part toward the pressed surface, and to press more strongly both one-side regions of the pressed surface corresponding to portions off the center of the wound body in the winding axis direction, and to press less strongly a central region between the one-side regions. | 03-28-2013 |
20130078492 | BATTERY - The present invention suppresses movement of a power generating element in a case of a battery while minimizing an increase in a workload in an assembly process of the battery. | 03-28-2013 |
20130084479 | SECONDARY BATTERY - A secondary battery with a flat wound electrode assembly includes a positive and negative electrode substrate exposed portions formed on the first and second end thereof, respectively. An end portion of a negative electrode active material mixture layer of a negative electrode plate on the negative electrode substrate exposed portion side protrudes more than an end portion of positive electrode active material mixture layer of an adjacent positive electrode plate. The negative electrode substrate exposed portion is converged on the central site in the thickness direction of the electrode assembly. A separator is located at the outermost surface of the electrode assembly, and the separator and the negative electrode substrate exposed portion of the adjacent negative electrode plate are fixed integrally with a fixing member. Thereby, semi-floating and peeling of the negative electrode active material mixture layer hardly occur at the end side of the negative electrode substrate exposed portion. | 04-04-2013 |
20130089766 | BATTERY AND METHOD OF MANUFACTURING BATTERY - The present invention maintains a power generating element in a flat shape as far as possible to thereby improve workability in a manufacturing process. In a battery including a power generating element formed into a flat shape and housed in a container, the power generating element formed by winding a foil-shaped positive electrode plate 24 | 04-11-2013 |
20130095357 | INCREASING THE STIFFNESS OF BATTERY CELLS FOR PORTABLE ELECTRONIC DEVICES - The disclosed embodiments relate to the manufacture of a battery cell. The battery cell includes a set of layers including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a pouch enclosing the layers, wherein the pouch is flexible. The layers may be wound to create a jelly roll prior to sealing the layers in the flexible pouch. The stiffness of the battery cell may be increased by applying a pressure of at least 0.13 kilogram-force (kgf) per square millimeter and a temperature of about 85° C. to the layers. | 04-18-2013 |
20130095358 | Lithium Iron Disulfide Battery - A lithium-iron disulfide battery with improved high temperature performance is disclosed. The separator characteristics are deliberately selected to be compatible with the electrolyte at the intended temperature. Additional or alternative modifications can be made in the form of a scaffold or laminated structure. A preferred polymer for such separators is polyimide. | 04-18-2013 |
20130101876 | LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME - A lithium secondary battery provided by the present invention includes a spirally wound electrode body in which a positive electrode sheet and a negative electrode sheet are spirally wound with a separator sheet | 04-25-2013 |
20130101877 | SECONDARY BATTERY - A secondary battery adapted to minimize deterioration attributable to temperature is provided. | 04-25-2013 |
20130108906 | NON-RECTANGULAR BATTERIES FOR PORTABLE ELECTRONIC DEVICES | 05-02-2013 |
20130108907 | CURVED BATTERY CELLS FOR PORTABLE ELECTRONIC DEVICES | 05-02-2013 |
20130108908 | POWER SUPPLY APPARATUS HAVING PLURALITY OF BATTERY CELLS | 05-02-2013 |
20130115494 | RECHARGEABLE BATTERY - A rechargeable battery including at least one electrode assembly, the at least one electrode assembly including a positive electrode and a negative electrode; a case accommodating the electrode assembly, the case having an installation surface; a terminal installed on the installation surface of the case; and a cap member coupled with the case. | 05-09-2013 |
20130115495 | LITHIUM PRIMARY BATTERY - Disclosed is a lithium primary battery including a positive electrode, a negative electrode, a separator interposed therebetween, and a non-aqueous electrolyte. The positive electrode includes: a positive electrode mixture layer which includes fluorinated graphite as a positive electrode active material; and a positive electrode current collector to which the positive electrode mixture layer is attached, the current collector including stainless steel which contains niobium. The negative electrode includes, as a negative electrode active material, lithium metal or a lithium alloy. The content of niobium in the stainless steel is preferably 0.2 mass % or more, and the separator thickness can be made 50 μm or less. | 05-09-2013 |
20130130083 | Electrode Assembly And Lithium Secondary Battery Including The Same - Provided is an electrode assembly, and more particularly, an electrode assembly having a structure wound in a state, in which a plurality of unit cells having a stacking structure is disposed on a long sheet type separation film, and including the unit cells having two or more types of configurations of electrode materials, wherein a separator stacked on the unit cell having a stacking structure has a coating material coated on both sides thereof and the long sheet type separation film has a coating material coated on one side thereof. According to the present invention, an electrode assembly improving processability of preparation of a battery while reducing initial resistance during the preparation of the battery as well as having battery lifetime equivalent to that of a conventional battery and a lithium secondary battery including the electrode assembly may be provided. | 05-23-2013 |
20130136966 | GRAPHENE HEAT DISSIPATORS IN PORTABLE ELECTRONIC DEVICES - The disclosed embodiments relate to techniques for facilitating thermal transfer in a portable electronic device. The portable electronic device includes a battery pack, which further includes a battery cell. The battery pack may supply power to a set of components in the portable electronic device. The portable electronic device also includes a heat dissipator composed of graphene. The heat dissipator may be in thermal contact with one or more of the components. The heat dissipator may also be disposed over a surface of the battery pack. | 05-30-2013 |
20130136967 | CURVED BATTERY CELLS FOR PORTABLE ELECTRONIC DEVICES - The disclosed embodiments relate to the manufacture of a battery cell. The battery cell includes a set of layers including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a pouch enclosing the layers, wherein the pouch is flexible. The layers may be wound to create a jelly roll prior to sealing the layers in the flexible pouch. A curve may also be formed in the battery cell by applying a pressure of at least 0.13 kilogram-force (kgf) per square millimeter to the layers using a set of curved plates applying a temperature of about 85° C. to the layers. | 05-30-2013 |
20130143087 | CORE/SHELL STRUCTURED ELECTRODES FOR ENERGY STORAGE DEVICES - An energy storage device can include at least one electrode that comprise a plurality carbon nanostructure (CNS)-infused fibers in contact with an active material and an electrolyte. | 06-06-2013 |
20130143088 | ELECTRODE ASSEMBLY OF NOVEL STRUCTURE AND PROCESS FOR PREPARATION OF THE SAME - Disclosed herein is an electrode assembly of a cathode/separator/anode structure, wherein a plurality of first unit electrodes and a second electrode sheet are wound so that the first unit electrodes are opposite to the second electrode sheet via a separator sheet, and a first electrode and a second electrode have opposite polarities. | 06-06-2013 |
20130143089 | SEPARATOR AND NONAQUEOUS ELECTROLYTIC SECONDARY BATTERY INCLUDING THE SAME - A separator for a battery according to the present disclosure (present separator) is held between a positive electrode and a negative electrode of the battery and includes an inorganic layer formation part and an inorganic layer non-formation part formed at an end. In addition, a nonaqueous electrolytic secondary battery according to the present disclosure includes: an electrode assembly including: a positive electrode having an active material layer including a positive electrode active material and a positive electrode current collector foil exposure part; a negative electrode having an active material layer including a negative electrode active material and a negative electrode current collector foil exposure part; and the present separator held between the positive electrode and the negative electrode; a case for housing the electrode assembly; and an electrolyte held between the positive electrode and the negative electrode. | 06-06-2013 |
20130143090 | SQUARE LITHIUM SECONDARY BATTERY - A square lithium secondary battery includes a wound body in which a collective sheet in which a positive electrode sheet and a negative electrode sheet overlap each other with a first separator interposed therebetween is wound while a second separator is put inside the collective sheet. An active material mixture layer on one or both surfaces of at least one of the positive electrode sheet and the negative electrode sheet includes a region with a plurality of openings and a region with no opening. At least a bent portion of the collective sheet is covered with the region with the plurality of openings. | 06-06-2013 |
20130143091 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery obtained by the present invention is a non-aqueous electrolyte secondary battery including an electrode body having a positive electrode sheet and a negative electrode sheet | 06-06-2013 |
20130149579 | SECONDARY BATTERY - An electrode assembly including a first electrode plate having a plurality of first electrode tabs, wherein each one of the first electrode tabs is attached to a region generally opposite to and facing each another of the first electrode tabs; a second electrode plate having a plurality of second electrode tabs, wherein each one of the second electrode tabs is attached to a region generally opposite to and facing each another of the second electrode tabs; and a separator located between the first electrode plate and the second electrode plate. | 06-13-2013 |
20130149580 | ELECTRODE ASSEMBLY HAVING FIBER-SHAPED STRUCTURES, AND BATTERY INCLUDING SAME - The present invention relates to an electrode assembly having fiber-shaped structures, and a battery including the same. According to one embodiment of the present invention, the electrode assembly comprises: a first electrode having one or two or more first fiber-shaped structures that have either a positive or negative pole; and a second electrode having one or two or more second fiber-shaped structures that have a different polarity from the structures and enclose said first structures in a spiral manner. | 06-13-2013 |
20130157094 | SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A secondary battery has: an electrode group which includes sheet-form positive and negative electrode plates each including a metallic foil having an active material applied onto both sides of the metallic foil, and a separator disposed between the positive and negative electrode plates, wherein the positive and negative electrode plates and the separator are spirally wound together around a winding core into a flattened shape, wherein the electrode group has, at the both ends thereof as viewed in the winding core direction, respectively formed metallic foil exposed portions of the positive and negative electrode plates onto which the active material is not applied; a battery container which contains the electrode group therein, wherein the battery container has a battery casing and a battery cap; and positive and negative external terminals electrically connected to the metallic foil exposed portions of the positive and negative electrode plates, respectively. Winding end portions in the metallic foil exposed portions of the positive and negative electrode plates are arranged opposite to the inner surface of the battery container through respective conducting members. | 06-20-2013 |
20130157095 | SECONDARY BATTERY AND METHOD OF PREPARING THE SAME - A shaft core includes a positive electrode shaft core portion having a positive electrode splaying portion at one end, a negative electrode shaft core portion having a negative electrode splaying portion at the other end, and an insulation portion that mutually insulates and integrates the positive and negative electrode shaft core portions. The positive electrode plate is electrically connected to the positive electrode collector in a state of being splayed through the positive electrode splaying portion, and the negative electrode plate is electrically connected to the negative electrode collector being splayed through the negative electrode splaying portion. The positive and negative electrode shaft core splaying portions press and open their respective electrode laminates at the end surfaces of the wound electrode group, the positive electrode connection piece and the positive electrode collecting portion are welded, and the negative electrode connection piece and the negative electrode collecting portion are also welded. | 06-20-2013 |
20130157096 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - Disclosed is a non-aqueous electrolyte secondary battery including: a spirally-wound electrode group including a continuous first electrode, a continuous second electrode, and a continuous separator interposed between the first electrode and the second electrode; and a non-aqueous electrolyte. The first electrode includes a sheet-like first current collector, and a first active material layer formed on a surface of the first current collector; and the second electrode includes a sheet-like second current collector, and a second active material layer formed on a surface of the second current collector. In the electrode group, the winding terminal end of the first electrode faces the second electrode on the further outer peripheral side, with the separator interposed therebetween. The facing site of the second electrode where the second electrode faces the winding terminal end of the first electrode is reinforced with a reinforcing component for supplementing the thickness of the second electrode. | 06-20-2013 |
20130164581 | SINGLE CELL AND POWER BATTERY PACK COMPRISING THE SAME - A single cell and a power battery pack comprising the same are provided. The single cell comprises: a shell; a cover board sealing an open end of the shell; an electrode core disposed inside the shell; an electrode terminal extending through the cover board, the electrode terminal comprising a first end portion connected with the electrode core inside the shell, a second end portion protruding outside the shell, and a middle portion between the first end portion and the second end portion; and an insulating member disposed between the electrode terminal and the cover board for insulating the electrode terminal; wherein each of the first end portion and the second end portion comprises a plurality of flexible conductive members. | 06-27-2013 |
20130164582 | ELECTRODE ASSEMBLY WITH HYBRID WELD - An electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, negative portion and removable portion. The mandrel has two faces with grooves dimensioned to accommodate positive and negative feedthrough pins. Electrodes are welded to the mandrel using an ultrasonic weld to the face on which the electrodes are attached. An additional weld is made to at least one ultrasonic weld using a through-mandrel laser weld, incident on the opposite face from which the ultrasonic weld. The laser melts the mandrel such that molten mandrel material fills the area under the foil at the area of the ultrasonic weld, the surface area of the foil being significantly increased by knurls formed by ultrasonic welding. Electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. The mandrel allows tighter wrapping of the jelly roll assembly increasing battery miniaturization. | 06-27-2013 |
20130164583 | THROUGH WELD INTERCONNECT JOINT - An electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, a negative portion and a removable portion. The mandrel can be planar, having two faces with grooves on the positive and negative portions. The grooves are dimensioned to accommodate positive and negative feedthrough pins. The mandrel is welded to the feedthrough pins by using a laser beam incident on the opposite face of the mandrel from the face on which the grooves and pins are located. The laser beam melts the mandrel such that molten mandrel material fills the grooves welding the feedthrough pins in place. Electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. The removable portion can be detached. The mandrel allows tighter wrapping of the jelly roll assembly and increasing battery miniaturization. | 06-27-2013 |
20130164584 | NEGATIVE-LIMITED LITHIUM-ION BATTERY - A rechargeable lithium-ion battery includes a housing including a titanium or a titanium alloy, a positive electrode having a first capacity and at least one positive active material selected from the group consisting of LiCoO | 06-27-2013 |
20130177792 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A main object of the present invention to provide a nonaqueous electrolyte secondary battery having high durability towards charge and discharge cycles, by preventing buckling of a wound electrode body. The secondary battery provided by the present invention comprises: a nonaqueous electrolyte; and a wound electrode body | 07-11-2013 |
20130183559 | LEAD-ACID BATTERY DESIGN HAVING VERSATILE FORM FACTOR - An electrochemical storage device comprises a plurality of layer electrodes, wherein each layer electrode includes a first charged sector and a second charged sector, wherein the second charged sector is charged oppositely compared to the first charged sector, and wherein the plurality of layer electrodes are assembled with respect to each other such that the first charged sector of a first plate of the plurality of layer electrodes is laid below the second charged sector of a second plate of the plurality of layer electrodes located immediately above the first plate, wherein the charges of the first charged sectors of the first and second plates have a first sign and the charges of the second charged sectors of the first and second plates have a second sign that is opposite the first sign; a separator sector located, and enabling ionic charge exchange between the first charged sector of the first plate and the second charged sector of the second plate. | 07-18-2013 |
20130183560 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly and a secondary battery including the same. The electrode assembly includes: a positive electrode plate including a positive electrode active material applied to a positive electrode collector; a negative electrode plate including a negative electrode active material applied to a negative electrode collector; a separator disposed between the positive electrode plate and the negative electrode plate; and a ceramic layer disposed on a portion of the positive or negative electrode plate, adjacent to an outer surface of the electrode assembly. The positive electrode plate, the negative electrode plate, ceramic layer, and the separator are wound together. The ceramic layer prevents a short-circuit between the positive electrode plate and the negative electrode plate, and extends along between about 40% and 90% of the length of the positive or negative electrode plate, from a winding end thereof. | 07-18-2013 |
20130196202 | METHOD AND DEVICE FOR PRODUCING AN ELECTROCHEMICAL ENERGY STORAGE CELL AND ALSO AN ENERGY STORAGE CELL - The invention relates to a method and a corresponding device for producing an electrochemical energy storage cell which exhibits at least one electrode stack ( | 08-01-2013 |
20130202931 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY COMPRISING THE SAME - An electrode assembly and a secondary battery comprising the same are provided. The secondary battery includes at least one electrode assembly formed by winding together a first electrode plate and a second electrode plate each coated with an active material layer, a current collector, and a case accommodating the electrode assemblies and the current collector. | 08-08-2013 |
20130202932 | POUCH TYPE BATTERY - A pouch type battery includes an electrode assembly having a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first electrode, second electrode and separator being wound together, an electrolyte, a pouch accommodating the electrode assembly and the electrolyte, and a fixing member fixing a winding end of the electrode assembly. The fixing member includes a base layer and an adhesive layer located at either side of the base layer, the fixing member making contact with external surfaces of the electrode assembly, and the base layer being a material that melts and acquires adhesiveness upon contact with the electrolyte. A portion of the base layer in contact with the electrolyte is in a melted condition and is separated from the adhesive layer. | 08-08-2013 |
20130202933 | LITHIUM PRIMARY BATTERY - A lithium primary battery includes a positive electrode 1 using iron sulfide as a positive electrode active material, a negative electrode 2 using a lithium alloy as a negative electrode active material, an electrode group 4 formed by winding the positive and negative electrodes 1, 2 with a separator 3 being interposed therebetween, and a non-aqueous electrolytic solution. The lithium alloy contains at least one of magnesium or tin in a range of 0.02-0.2 mol %. | 08-08-2013 |
20130209848 | DEVICE FOR FOLDING ELECTRODE ASSEMBLY - Disclosed herein is a folding device to manufacture a stacked/folded type electrode assembly having unit cells sequentially stacked in a state in which a separation film is disposed between the respective unit cells, the folding device including a web supply unit to supply a web having plate-shaped unit cells arranged at a top of a separation film at predetermined intervals, a winding jig to rotate the unit cells while holding a first one of the unit cells of the web so that the unit cells are sequentially stacked in a state in which the separation film is disposed between the respective unit cells, and a rotary shaft compensation unit to compensate for the position of a rotary shaft of the winding jig in an advancing direction of the web (X-axis direction), wherein the rotary shaft compensation unit periodically changes the position of the rotary shaft to compensate for the change in X-axis velocity (Vx) of the web caused during winding of the plate-shaped unit cells, thereby uniformly maintaining tension of the web. | 08-15-2013 |
20130209849 | PRISMATIC SECONDARY BATTERY - A prismatic secondary battery is provided with a negative/positive electrode collector ( | 08-15-2013 |
20130216879 | SECONDARY BATTERY - A battery includes a wound plate pack formed with a positive electrode comprising a positive electrode coated part having a positive foil and a positive electrode uncoated part, and a negative electrode comprising a negative electrode coated part having a negative foil and a negative electrode uncoated part; a battery container into which electrolyte is injected; a positive terminal and a negative terminal provided on the battery container; a positive current collector connecting the positive electrode uncoated part and the positive terminal; and a negative current collector connecting the negative electrode uncoated part and the negative terminal, having multiple through holes between a joining part with the positive current collector in the positive electrode uncoated part and the positive electrode coated part; and multiple through holes between a joining part with the negative current collector in the negative electrode uncoated part and the negative electrode coated part. | 08-22-2013 |
20130216880 | POUCH TYPE CASE AND BATTERY PACK INCLUDING THE SAME - The present invention relates to a pouch type case having trimming portions formed on both sides or four corners thereof and a battery pack including the same. The trimming portions are formed on the corners of the pouch type case such that the trimming portions are indented toward an electrode assembly accommodating part to reduce a unit area so as to increase pressure applied to unit cells when a battery pack is assembled, thereby facilitating assembling of the battery pack and increasing cell capacity per unit area. Furthermore, the unit cells can be fixed in the battery pack more stably. The pouch type case reduces the unit area so as to include a relatively large number of cells for pressure applied to the cells when the battery pack is assembled to thereby increase the cell capacity. | 08-22-2013 |
20130216881 | BUTTON CELL HAVING BURSTING PROTECTION - A button cell has a housing closed in a liquid-tight manner including a cup, cover and seal, the cell cup having a base, circumferential casing, an edge area connecting the base and casing, and an end cut edge, the cell cover has a base, a circumferential casing, an edge area connecting the base and casing, and an end cut edge, the cover is inserted into the cup with the cut edge in front such that the casing of the cup and casing of the cover at least partially overlap and form a double-walled casing area, the seal is arranged between the cup and cover between the overlapping casing area such that they are isolated from one another, and at least one hole passes through the casing of the cup in the area which overlaps the casing of the cover. | 08-22-2013 |
20130224543 | CATHODE FOR LITHIUM BATTERY WITH EXCELLENT OUTPUT PROPERTIES, METHOD OF MANUFACTURING THE CATHODE AND LITHIUM BATTERY USING THE SAME - The present disclosure provides a cathode for lithium batteries with a structure suited to high output properties, a method of manufacturing the same, and a lithium battery using the same. The cathode has a stack structure including a first cathode member, a separating member and a second cathode member stacked in sequence to have a pipe shape or a folded shape with spaced ends, wherein each of the first and second cathode members includes a current collector and a cathode active material formed on either side of the current collector. | 08-29-2013 |
20130224544 | ELECTRODE PLATE, WOUND ELECTRODE GROUP, AND CYLINDRICAL BATTERY - An electrode plate is configured by applying an active material onto a base member formed of a punching steel plate, the electrode plate being wound via a separator together with an electrode plate, which has a different polarity, and having an outermost peripheral portion positioned at the outermost periphery of an electrode assembly. The rate of hole area of the base member at a different electrode overlapping portion, which radially inwardly overlaps on a winding terminal end of the electrode plate having the different polarity, is smaller than that of the base member at the outermost peripheral portion. | 08-29-2013 |
20130224545 | CYLINDRICAL SECONDARY BATTERY - The present invention provides a cylindrical secondary electrode including a first electrode plate, a second electrode plate, a separator interposed between the first electrode plate and the second electrode plate, and a case having a space for receiving the electrode assembly, wherein the cylindrical secondary electrode may include a core element having a space at the center thereof and having a tubular shape with a circular cross section, which is inserted into a space at the center of an electrode assembly and has at least one slit including a bent portion. | 08-29-2013 |
20130224546 | Electrical Storage Device and Method of Manfacturig Electrical Storage Device - An electrochemical capacitor that is resistant to vibration is provided. A positive current collecting member | 08-29-2013 |
20130230756 | SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - A secondary battery and a manufacturing method thereof are disclosed. In one embodiment, the battery includes an electrode assembly and a case accommodating the electrode assembly. The electrode assembly may include i) a first electrode plate comprising a first collector and a first active material layer formed on at least one side of the first collector, ii) a second electrode plate comprising a second collector and a second active material layer formed on at least one side of the second collector and iii) a separator interposed between the first and second electrode plates. In one embodiment, a plurality of pores are formed only in part of the first and second collectors. | 09-05-2013 |
20130236756 | LITHIUM BOBBIN CELL WITH CATHODE USING WRAPPED METAL GRID AS CURRENT COLLECTOR - Improved structure and performance are disclosed for lithium cylindrical primary and secondary bobbin cells having an improved cathode and current collector. This collector can be a metal screen, mesh or grid, and may further be treated with carbon or cathode mix components and then wrapped around the cathode and embedded into its surface. This metal grid collector reduces cell impedance, and increases discharge rate capability as well as low temperature performance. The cathode for these cells is surrounded by the anode and may also have a hole through its center to provide improved manufacturability and reduced cost for the cells. | 09-12-2013 |
20130236757 | CELL ASSEMBLIES WITH NEUTRAL CASES - Provided are electrochemical cell assemblies and methods of fabricating thereof. A cell assembly includes an anode containing lithium titanium oxide and a cathode forming a jellyroll together with the anode. Each of the electrodes is connected to a separate cap and electrically insulated from the case. As such, the case is electrochemically neutral and may be made from a larger selection of materials. For example, a case may be made from steel that would otherwise dissolve if exposed to the anode potential during cycling of the battery. Some of these case materials simplify processing and sealing characteristics. In certain embodiments, a case may be crimped around each of the caps and corresponding gaskets to provide sealing interfaces. The caps or at least their surfaces exposed to the electrolyte are made from materials that are electrochemically stable at corresponding potentials of the electrodes. | 09-12-2013 |
20130244071 | BATTERY HAVING ENHANCED ELECTRICAL INSULATION CAPABILITY - Disclosed is a battery including a cathode in which cathode active-material coating layers provided on both surfaces of a cathode collector are longitudinally deviated from each other, and an anode having at least one anode active-material coating layer provided on an anode collector, the cathode and anode being wound to face each other with a separator interposed therebetween. At least one of a winding beginning portion and winding ending portion of the cathode is provided with a cathode uncoated part for installation of a cathode lead. An insulator tape is attached to the boundary of the cathode active-material coating layer at a position where the anode active-material coating layer faces a non-coating part of the cathode not containing the cathode active-material coating layer, achieving enhanced electrical insulation capability and consequential safety of the battery. | 09-19-2013 |
20130244072 | ENERGY STORAGE DEVICE, WINDING APPARATUS, AND WINDING METHOD - An energy storage device includes: a core; and a wound body including, layered and wound around the core: a positive electrode, a negative electrode, and two separators, one of which is interposed between the positive electrode and the negative electrode and each having a first surface and a second surface. The first surface has thermal bonding properties superior to thermal bonding properties of the second surface, and at least one of the two separators is bonded to the core via the first surface thereof. | 09-19-2013 |
20130244073 | NONAQUEOUS ELECTROLYTE BATTERY - It is an object of the present invention to provide a nonaqueous electrolyte battery in which a winding body is uniformly expanded, to thereby prevent undulation. A nonaqueous electrolyte battery ( | 09-19-2013 |
20130252053 | SECONDARY BATTERY - A secondary battery including: an electrode assembly including a first electrode plate that includes an uncoated portion, a second electrode plate that includes an uncoated portion, and a separator that is interposed therebetween, wherein the first and second electrode plates and the separator are wound so that the uncoated portion of the first electrode plate and the uncoated portion of the second electrode plate are arranged in different directions; a groove formed in at least one of the uncoated portions of the first and second electrode plates; and a current collector including a lead tab that is bent passing the groove in such a way that a portion of the lead tab contacts a side surface of at least one first uncoated portions and another portion of the lead tab contacts another side surface of the at least one uncoated portion. | 09-26-2013 |
20130252054 | INTEGRAL BATTERY TAB - One aspect of the present disclosure relates to a wound electromechanical storage device assembly including a negative electrode sheet, a plurality of negative electrode tabs which are integral to and extend from the negative electrode sheet, a positive electrode sheet, a plurality of positive electrode tabs which are integral to and extend from the positive electrode sheet, and a separator sheet disposed between the negative and positive electrode sheets, wherein the negative electrode sheet, positive electrode sheet, and separator sheet are wound around a common axis to form a plurality of windings, and wherein each winding includes one negative electrode tab and one positive electrode tab. | 09-26-2013 |
20130252055 | SECONDARY BATTERY OF EXCELLENT PRODUCTABILITY AND SAFETY - Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulating member is mounted on the top of the jelly-roll and the insulating member includes a perforated inlet enabling gas discharge and penetration of electrode terminals and a plurality of pores with a diameter of 100 μm or less provided over the entire surface of the insulating member. | 09-26-2013 |
20130252056 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides an optimal non-aqueous electrolyte secondary battery having high durability against high rate charging and discharging and excellent safety. The non-aqueous electrolyte secondary battery | 09-26-2013 |
20130260199 | DEVICE FOR FOLDING ELECTRODE ASSEMBLY - Disclosed herein is a folding device to manufacture a stacked/folded type electrode assembly having unit cells sequentially stacked in a state in which a separation film is disposed between the respective unit cells, the folding device including a web supply unit to supply a web having plate-shaped unit cells arranged at the top of a separation film at predetermined intervals, a winding jig to rotate the unit cells while holding a first one of the unit cells of the web so that the unit cells are sequentially stacked in a state in which the separation film is disposed between the respective unit cells, and a Y-axis directional rotary shaft compensation unit to compensate for a position of a rotary shaft of the winding jig in a direction (Y-axis direction) perpendicular to an advancing direction of the web, wherein the Y-axis directional rotary shaft compensation unit periodically changes the position of the rotary shaft in the direction (Y axis) perpendicular to the advancing direction (X axis) of the web to minimize vertical amplitude of the web during winding. | 10-03-2013 |
20130260200 | PREPARATION PROCESS FOR PREVENTING DEFORMATION OF JELLY-ROLL TYPE ELECTRODE ASSEMBLY - Provided is a method for fabrication of a jelly-roll type electrode assembly having a cathode/separation membrane/anode laminate structure, including: (a) coating both sides of a porous substrate with organic/inorganic composite layers, each of which includes inorganic particles and an organic polymer as a binder, so as to fabricate a composite membrane; and (b) inserting one end of a sheet laminate comprising a cathode sheet and an anode sheet as well as the composite membrane into a mandrel, winding the sheet laminate around the mandrel, and then, removing the mandrel, wherein the organic/inorganic composite layer includes microfine pores capable of moderating a variation in volume during charge/discharge of a secondary battery and an interfacial friction coefficient between the composite membrane and the mandrel is not more than 0.28. | 10-03-2013 |
20130260201 | Lithium-Iron Disulfide Cell Design - The invention relates to electrochemical cells having a jellyroll electrode assembly that includes a lithium-based negative electrode, a positive electrode with a coating comprising greater than about 94 wt. % of iron disulfide. | 10-03-2013 |
20130260202 | Lithium-Iron Disulfide Cell Design - A lithium-iron disulfide electrochemical cell design is disclosed, relying on judicious selection of the electrolyte, a thicker lithium anode and a cathode with specific characteristics selected to cooperate with the electrolyte. The resulting cell has a reduced interfacial surface area between the anode and the cathode but, surprisingly, maintains excellent high drain rate capacity. | 10-03-2013 |
20130260203 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - [Problem] To provide a rectangular nonaqueous electrolyte secondary battery for which the generation of a magnetic field due to current during use is suppressed and the danger of internal shorts between the positive electrode tab and negative electrode tab is reduced. [Solution] The positive electrode tab and negative electrode tab are both disposed at the beginning side of a winding for wound electrodes. An outer housing and sealing plate are welded in a state with the positive electrode tab sandwiched at a mating part of the outer housing and sealing plate. The negative electrode tab is electrically connected to a negative electrode terminal provided on the sealing plate. The positive electrode tab and negative electrode tab are divided by a space of 2-12 mm in the direction of battery width. | 10-03-2013 |
20130266834 | LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A lithium secondary battery and a method for producing the lithium secondary battery. The lithium secondary battery includes a negative electrode | 10-10-2013 |
20130280567 | THREE DIMENSIONAL SHAPED BATTERY - A three-dimensional shaped battery includes a cell structure including a first electrode layer, a second electrode layer, and a separation layer disposed between the first electrode layer and the second electrode layer, where the cell structure may include a plurality of pattern units having different sizes from each other and a connecting portion which connects the pattern units to each other. | 10-24-2013 |
20130280568 | ENERGY STORAGE DEVICE, WINDING APPARATUS, AND WINDING METHOD - Provided is an energy storage device which employs the use of a separator provided with a layer having poor thermal properties such as a heat resistant coated layer and is capable of inhibiting a decrease in performance. The energy storage device includes: a wound body including a positive electrode, a negative electrode, and separators which are layered and wound, the separators being interposed between the positive electrode and the negative electrode and having a first surface and a second surface, the first surface having thermal bonding properties superior to thermal bonding properties of the second surface; and an insulation sheet wound around an outermost layer of the wound body. At least one of the separators is bonded to the insulation sheet via the first surface thereof. | 10-24-2013 |
20130280569 | ELECTRIC STORAGE DEVICE - An element body having a plurality of positive electrode layers, a plurality of negative electrode layers, and separator layers each interposed between adjacent positive and negative electrode layers. A package includes a box-like package body portion containing the element body, and a flat package edge portion connected to the package body portion. A positive electrode terminal and a negative electrode terminal are bent at terminal body portions extending outward from the package edge portion to form a positive-electrode bent portion and a negative-electrode bent portion, respectively. The bent portions are joined to the package edge portion, with joining members. | 10-24-2013 |
20130280570 | ELECTRODE ASSEMBLY - An electrode assembly and a battery are provided. The electrode assembly may be effectively fixed inside a can as a pressure-sensitive adhesive tape attached to an outer circumferential surface of the electrode assembly is formed into a 3D shape by an electrolyte. Thus, the electrode assembly does not move and rotate inside the can due to external vibration or impact and damage of welded regions of a tab or disconnection of inner circuits can be prevented. | 10-24-2013 |
20130280571 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery is disclosed in which an electrode assembly is accommodated in a battery container, the electrode assembly including a positive electrode having a positive electrode mixture layer containing a lithium transition metal composite oxide, a negative electrode having a negative electrode mixture layer for occluding/releasing lithium ions, and a separator disposed to inner and outer peripheries of the positive electrode and the negative electrode. The lithium ion secondary battery being charged with a non-aqueous electrolyte containing a lithium salt, wherein the relation shown by the following formula (I) is satisfied: | 10-24-2013 |
20130288092 | ELECTRODE ASSEMBLIES INCLUDING INSULATIVE PORTIONS - An electrode assembly for use in a battery may include a mandrel and one or more insulative portions. The insulative portions may be formed about and may extend from one or more end regions of a battery mandrel. Further, insulative portions may electrically insulate one or more elements of the electrode assembly from each other. | 10-31-2013 |
20130288093 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a non-aqueous electrolyte secondary battery including: a plurality of electrode groups each formed by winding a positive electrode, a negative electrode, and a separator into a flat shape; a non-aqueous electrolyte; and a prismatic case accommodating the electrode groups and the non-aqueous electrolyte. The case has a rectangular cross-sectional shape. The electrode groups are accommodated in the case such that lateral directions of the cross-sectional shapes of the electrode groups are each perpendicular to the lateral direction of the cross-sectional shape of the case, and the axis directions of the electrode groups are each parallel with the height direction of the case. | 10-31-2013 |
20130295425 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an inner electrode comprising a wire-type inner current collector having a first metal tap formed to be extended in a predetermined length at one end thereof, and an inner electrode active material layer formed on the surface of the inner current collector; a separator layer formed on the outer surface of the inner electrode active material layer; and an outer electrode formed on the outer surface of the separator layer, and comprising an outer electrode active material layer and an outer current collector having a second metal tap formed to be extended in a predetermined length at one end thereof. | 11-07-2013 |
20130309533 | ELECTRIC STORAGE DEVICE, AND METHOD FOR PRODUCING THE SAME - An electric storage device according to the present invention is provided with a flat electrode assembly in which a positive electrode plate and a negative electrode plate are wound while being isolated from each other, and which includes a pair of folded-back portions opposed to each other with a center line therebetween and a flat portion positioned between the pair of folded-back portions; and a case for housing the electrode assembly, the case including, on an inner surface thereof, a raised portion having direct or indirect contact externally with a boundary region between one of the pair of folded-back portions and the flat portion of the electrode assembly, wherein a maximum external length of the folded-back portion in a direction orthogonal to the flat portion is greater than an external length of the boundary region in a direction orthogonal to the flat portion at a position thereof with which the raised portion has contact. | 11-21-2013 |
20130309534 | ELECTRIC STORAGE DEVICE - An electric storage device includes: an external terminal having an exposed face exposed outside from an outer covering; a current collector disposed inside the outer covering and connected to the external terminal; and an electrode assembly disposed inside the outer covering and connected to the current collector. The electrode assembly is formed by winding sheet-shaped positive electrode and negative electrode into a flat shape with a separator interposed therebetween and housed in the outer covering so that curved portions obtained by the winding are positioned on a lid body side and a bottom face side. A lid body has an electrolyte solution filling portion that opens to a clearance formed between the curved portion of the electrode assembly and the outer covering. | 11-21-2013 |
20130316204 | ELECTRODE ASSEMBLY, FABRICATING METHOD THEREOF, AND RECHARGEABLE BATTERY - A spirally-wound electrode assembly includes: a first electrode and a second electrode; a separator interposed between the first electrode and the second electrode; and a connection portion fixing first ends of portions of the separator, and the first electrode is adjacent to the connection portion and is between the portions of the separator. A rechargeable battery including a spirally-wound electrode assembly, and a method of manufacturing an electrode assembly are also provided. | 11-28-2013 |
20130316205 | CYLINDRICAL SECONDARY BATTERY OF IMPROVED SAFETY - Disclosed herein is a secondary battery having a jelly roll type electrode assembly (‘jelly roll’) of a cathode/separator/anode structure mounted in a battery container, wherein a seal tape is attached to an outer side of the jelly roll including a wound end of the jelly roll, and the seal tape reacts with an electrolyte with the result that the seal tape is gelled. | 11-28-2013 |
20130316206 | MANDREL FOR PREPARATION OF JELLY-ROLL TYPE ELECTRODE ASSEMBLY - Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel, a length ratio of a major axis to a minor axis of the mandrel being 1.5 or more, and a tilt of an outer side of the mandrel is continuously changed from an end of the minor axis of the mandrel to an end of the major axis of the mandrel in the section perpendicular to the rotational central axis of the mandrel. | 11-28-2013 |
20130316207 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The nonaqueous electrolyte secondary battery includes a wound electrode body in which a positive and a negative electrode plates are wound with a separator therebetween and an air gap portion is formed at the winding axis center. A negative electrode collector tab is joined to a negative electrode exposed portion on the winding start side. This collector tab is bent so as to be touched and joined to the inside bottom portion of a battery exterior can at the position corresponding to the air gap portion. In a plan view, the air gap portion of is formed in a shape having an arc portion and a chord portion. In a plan view, the negative electrode collector tab is made to be linear along the chord portion of the negative electrode exposed portion on the winding start side, and is joined to the negative electrode exposed portion at this chord portion. | 11-28-2013 |
20130316208 | Lithium-Ion Battery - The present invention provides a cylindrical lithium-ion secondary battery. The lithium-ion battery of the present invention has a structure in which the value of B/A is optimized, where the distance between an electrode pole to which strip-form lead pieces are welded, the lead pieces being formed intermittently in the winding direction, which is the longitudinal direction of the belt-like electrodes, and the inner wall of the battery can is represented by A, and the distance between the electrode pole and the wound electrode group is represented by B, in order to secure an exhaust passage for the gas generated upon occurrence of an abnormality in the battery. | 11-28-2013 |
20130316209 | BATTERY AND MANUFACTURING METHOD OF THE BATTERY - A battery includes a first electrode plate, a second electrode plate, a separator interposed between the first and second electrode plates, a closed-end cylindrical metal case accommodating these three elements, and a sealing member sealing an opening of the metal case with an insulating member interposed therebetween. The first and second electrode plates are wound with the separator interposed therebetween to form a wound electrode group. A center axis portion of the wound electrode group is substantially the same as a center axis of a cylinder of the metal case, and contains no power-generating element. A first current collector lead coupled to the first electrode plate extends toward the opening of the metal case, and joined to an inner sidewall surface of the metal case. A second current collector lead coupled to the second electrode plate extends toward the opening of the metal case, and joined to the sealing member. | 11-28-2013 |
20130316210 | SECONDARY BATTERY AND ASSEMBLED BATTERY - An assembled battery ( | 11-28-2013 |
20130323555 | LITHIUM-ION RECHARGEABLE BATTERY ANODE, LITHIUM-ION RECHARGEABLE BATTERY UTILIZING THE LITHIUM-ION RECHARGEABLE BATTERY ANODE, AND MANUFACTURING METHOD THEREOF - A lithium-ion rechargeable battery, and an anode for a lithium-ion rechargeable battery containing an anode mix layer including a high density anode mix layer formed over an anode current collector, and a low density anode mix layer formed over the high density anode mix layer; and in which the electrode density of the high density anode mix layer is larger than the electrode density of the low density anode mix layer, the upper surface and the side surfaces of the high density anode mix layer are covered by the low density anode mix layer; and the film thickness of the high density anode mix layer is 50 percent or less than the film thickness of the anode mix layer. | 12-05-2013 |
20130323556 | MANDREL FOR PREPARATION OF JELLY-ROLL TYPE ELECTRODE ASSEMBLY - Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel and is divided into a first mandrel part located at one side of a central region of the mandrel, in which an end of the sheet type stack is fixedly fitted, and a second mandrel part located at the other side of the central region of the mandrel, and the first mandrel part and the second mandrel part each include a main body part having a region in which the sheet type stack is fitted in an engaged state and an exchange part, detachably mounted to the main body part, having an end of a major axis of the mandrel. | 12-05-2013 |
20130323557 | SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME - A secondary battery includes a vessel exterior provided with positive and negative electrode external terminals; an electrode group in which positive and negative electrode plates are wound while allowing a separator to intervene therebetween, and collector portions are provided at the both ends thereof; a shaft core in which the positive and negative electrode plates are wound and which has positive and negative electrode shaft core portions at both ends thereof, the positive and negative electrode shaft core portions being insulated from each other by an insulation portion; and positive and negative electrode collectors which are supported by the vessel exterior and constitute a current path reaching the positive and negative electrode external terminals from the electrode group, the positive and negative electrode shaft core portions being joined with collecting portion of the positive and negative electrode plates and also welded to the positive and negative electrode collectors, respectively. | 12-05-2013 |
20130330585 | MECHANICAL SUPPORTS FOR IMPROVING RESISTANCE TO MECHANICAL STRESS IN BATTERY CELLS - The disclosed embodiments provide a battery cell. The battery cell includes a set of layers including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a pouch enclosing the layers, wherein the pouch is flexible. The resistance of the battery cell to mechanical stress may be improved by removing material from one or more of the layers to form one or more apertures within the battery cell and placing a mechanical support in each of the apertures. | 12-12-2013 |
20130330586 | BATTERY CELL - A battery cell including an electrode assembly; a taping portion on the electrode assembly, the taping portion including a first adhesive layer on the outer surface of the electrode assembly, a first base layer on the first adhesive layer, and a second base layer on the first base layer; and a case receiving the electrode assembly. | 12-12-2013 |
20130337303 | INCREASING THE ENERGY DENSITY OF BATTERY CELLS FOR PORTABLE ELECTRONIC DEVICES - The disclosed embodiments relate to the manufacture of a battery cell. The battery cell includes a set of layers including a cathode and an anode. The cathode includes a cathode substrate with a thickness in the range of 8-10 microns and a cathode active material. The anode includes an anode substrate with a thickness in the range of 4-6 microns and an anode active material. The cathode active material is coated on the cathode substrate at a rate of 2 mm/min to 3 mm/min, and the anode active material is coated on the anode substrate at a rate of 2 mm/min to 3.8 mm/min. Such substrate thicknesses and coating speeds may increase the energy density of the battery cell over that of a conventional battery cell with thicker cathode and anode substrates while avoiding manufacturing defects associated with the use of thinner substrates in battery cells. | 12-19-2013 |
20130337304 | POUCH CELL COMPRISING AN EMPTY-VOLUME DEFINING COMPONENT - Disclosed are pouch cells, for example lithium-ion pouch cells, where a portion of the inner volume of the pouch is substantially empty and there is subatmospheric pressure inside the pouch. In some embodiments gas released inside the pouch, for example during use of the cell, is accommodated in the substantially empty portion of the inner volume of the pouch, avoiding pouch bulging. | 12-19-2013 |
20130337305 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - It is an object of the present invention to provide a nonaqueous electrolyte secondary battery with superior high-temperature charge-discharge cycle characteristics as well as superior low-temperature high-rate charge-discharge cycle characteristics. A nonaqueous electrolyte secondary battery | 12-19-2013 |
20130344363 | LI-ION BATTERY AND BATTERY ACTIVE COMPONENTS ON METAL WIRE - A battery on a conductive metal wire and components of a battery on a conductive metal wire of circular cross section diameter of 5-500 micrometers and methods of making the battery and battery components are disclosed. In one embodiment, the battery features a porous anode or cathode layer which assist with ion exchange in batteries. Methods of forming the porous anode or cathode layer include deposition of an inert gas or hydrogen enriched carbon or silicon layer on a heated metal wire followed by annealing of the inert gas or hydrogen enriched carbon silicon layer. Energy storage devices having bundles of batteries on wires are also disclosed as are other energy storage devices. | 12-26-2013 |
20130344364 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery in which a winding type electrode group including a positive electrode having a positive electrode mix layer containing a lithium metal oxide, a negative electrode having a negative mix layer that stores and discharges lithium ions, and separators arranged on inner and outer peripheries of the positive electrode and the negative electrode is housed, and a nonaqueous electrolyte is poured, within a battery container, the positive electrode has one side edge along a longitudinal direction thereof exposed as a positive electrode mix unprocessed portion, and a positive electrode mix layer coated in the other area on both surfaces of a metal foil made of an aluminum alloy. | 12-26-2013 |
20130344365 | Lithium Secondary Battery - The purpose of the present invention is to examine a novel core material for a lithium secondary battery and to provide a battery in which there is minimal variation from initial battery characteristics over time during long-term storage of the battery. In order to enhance the high-temperature storage characteristics of a lithium battery, a resin composed primarily of a cellulose-containing polypropylene is used as a winding core material. | 12-26-2013 |
20140004399 | JELLY-ROLL TYPE ELECTRODE ASSEMBLY PATTERN-COATED WITH ACTIVE MATERIAL AND SECONDARY BATTERY INCLUDING THE SAME | 01-02-2014 |
20140004400 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND VEHICLE | 01-02-2014 |
20140011062 | SECONDARY BATTERY - A secondary battery including a first electrode assembly including first and second electrode plates stacked on each other; and a second electrode assembly including third and fourth electrode plates, wherein the second electrode assembly is wound along an outer circumference of the first electrode assembly. The secondary battery having a high energy density and capable of preventing damage of the electrode plates may be provided. | 01-09-2014 |
20140011063 | ELECTRIC STORAGE APPARATUS AND METHOD OF MANUFACTURING ELECTRIC STORAGE APPARATUS - adjacent to the reaction area of the power-generating element, in a state in which a portion of the collector plate of the electrode plate is wound in layers, is connected to the electrode terminal, the active material layer being not formed on the portion. The power-generating element has a bent portion provided by folding back the electrode plate and a cut portion at a position adjacent to the bent portion and formed by cutting a portion of the connecting region. The electrode terminal is fixed to the cut portion. | 01-09-2014 |
20140017534 | ELECTRODE ASSEMBLY AND ELECTRIC STORAGE DEVICE - Provided are an electrode assembly including a sheet-shaped current collector that has, on at least one face thereof, a mixture agent layer containing an active material and is spirally wound, in which the current collector has, in a portion on a side of at least one end of a winding axis, a non-mixture agent layer part having no mixture agent layer formed therein, and a mass per unit area of the mixture agent layer is larger in an edge portion on the side of the non-mixture agent layer part by 0.3% or more and 1.0% or less than in a portion other than the edge portion; and an electric storage device including the electrode assembly. | 01-16-2014 |
20140017535 | BATTERY - A battery includes: an electricity-generating element that is formed by winding an electrode plate and a separator and has a space at a winding axial portion; and a spacer having an inclined portion having a width that is gradually reduced toward the center of the electricity-generating element. At least a part of the spacer is disposed in the space at the winding axial portion of the electricity-generating element, the inclined portion of the spacer abutting against an end of an inner wall of the electricity-generating element. | 01-16-2014 |
20140023898 | NON-AQUEOUS ELECTROLYTE SECONDARY CELL - The present invention aims to productively provide a non-aqueous electrolyte secondary cell having excellent safety and high capacity. The above object can be achieved by adopting the following configuration. The non-aqueous electrolyte secondary cell comprises a wound electrode assembly formed by winding a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer and a separator separating the positive and negative electrodes, wherein: the filling density of the positive electrode active material layer is 2.0-2.8 g/cc; the filling density of the negative electrode active material layer is 1.0-1.5 g/cc; each thickness of the positive electrode and the negative electrode is 100-200 μm; the thickness of the separator is 10-30% of each thickness of the positive and negative electrodes; and the air permeability per unit thickness of the separator is 7.0-27.0 sec/100 cc•μm. | 01-23-2014 |
20140023899 | SECONDARY BATTERY, AND CURRENT COLLECTOR TERMINAL STRUCTURE OF SECONDARY BATTERY - A secondary battery has a wound electrode body, and two current collector terminals connected to opposite current collector foils of the electrode body. Bound portions in which the current collector foils are bound are opposed to each other in a compression direction in which the wound electrode body is compressed. Each current collector terminal has a current-collecting portion that has a solid structure and is inserted between the opposed bound portions for connection with the electrode body, and a current-carrying portion formed integrally with the current-collecting portion. The width of the current-carrying portion is substantially equal to the thickness of the electrode body in the compression direction, and the current-carrying portion extends along a corresponding one of opposite end faces of the electrode body as viewed in the direction of the winding center axis. | 01-23-2014 |
20140023900 | SECONDARY BATTERY - A secondary battery is provided. The secondary battery includes a positive electrode having a positive electrode active material layer provided on a positive electrode current collector, a negative electrode having a negative electrode active material layer provided on a negative electrode current collector, and an electrolyte, in which the positive electrode and the negative electrode are stacked and rolled up while placing a separator in between. A sum (A+B) of a total thickness “A” of the positive electrode current collector and the positive electrode active material layer, and a total thickness “B” of the negative electrode current collector and the negative electrode active material layer ranges from 161 μm to 220 μm. A ratio (A/B) of the total thickness “A” to the total thickness “B” ranges from 0.65 to 1.9. | 01-23-2014 |
20140030567 | HEAT SEALING SEPARATORS FOR NICKEL ZINC CELLS - Embodiments are described in terms of selective methods of sealing separators and jellyroll electrode assemblies and cells made using such methods. More particularly, methods of selectively heat sealing separators to encapsulate one of two electrodes for nickel-zinc rechargeable cells having jellyroll assemblies are described. Selective heat sealing may be applied to both ends of a jellyroll electrode assembly in order to selectively seal one of two electrodes on each end of the jellyroll. | 01-30-2014 |
20140030568 | CYLINDRICAL SECONDARY BATTERY - The cylindrical secondary battery includes a plurality conductive leads, which are formed to be tapered from a root portion to a tip portion, and when a tolerance of a pitch of the conductive leads is Δp and a difference of width dimension between the root portion and the tip portion of the conductive leads is Δw, the pitch of the conductive leads is set to fall within a proper region where a variation range of a numerical value obtained by dividing a standard deviation of the number of layers of the conductive leads when the conductive leads are wound around a current collecting member by an average value of the standard deviations of the number of layers of the conductive leads is a predetermined value or less, and a range of the proper region is larger than the sum of Δp and Δw. | 01-30-2014 |
20140030569 | CABLE-TYPE SECONDARY BATTERY - The present invention provides a cable-type secondary battery comprising an inner electrode which includes at least one first polarity electrode having a first polarity current collector with a long and thin shape, whose cross-section perpendicular to its longitudinal direction is a circular, oval or polygonal form; a first polarity electrode active material layer formed on an outer surface of the first polarity current collector; and an electrolyte layer filled to surround the first polarity electrode active material layer, and at least one wire-type second polarity electrode which wholly surrounds the inner electrode and is winding around the exterior thereof. | 01-30-2014 |
20140038013 | METHOD FOR MANUFACTURING A CONNECTING CONTACT FOR AN ELECTRODE OF AN ELECTROCHEMICAL STORE, METHOD FOR MANUFACTURING AN ELECTROCHEMICAL STORE, AND ELECTROCHEMICAL STORE - In a method for manufacturing a connecting contact for an electrode of an electrochemical store, the electrode having a first material, a contact element made of a second material is provided, the contact element having a section coated using the first material, and the coated section is electrically and mechanically connected to the electrode to manufacture the connecting contact. | 02-06-2014 |
20140038014 | CABLE-TYPE SECONDARY BATTERY - A cable-type secondary battery, includes an electrode assembly including first and second polarity electrodes with a thin and long shape, each electrode having a current collector whose cross-section perpendicular to its longitudinal direction is a circular, asymmetrical oval or polygonal shape, and an electrode active material applied onto the surface of the current collector, and a separator or an electrolyte layer interposed between the first and second polarity electrodes; and a cover member surrounding the electrode assembly. Also, the cable-type secondary battery is provided with a first polarity terminal and a second polarity terminal connected to the first polarity electrode and the second polarity electrode, respectively, at the end of the cable-type secondary battery; and a housing cap configured to fix the first and second polarity terminals and cover the end of the cable-type secondary battery. | 02-06-2014 |
20140038015 | CABLE-TYPE SECONDARY BATTERY - A cable-type secondary battery, includes an electrode assembly including first and second polarity electrodes with a thin and long shape, each having a current collector whose cross-section perpendicular to its longitudinal direction is a circular, asymmetrical oval or polygonal shape, an electrode active material applied onto the surface of the current collector, and a separator or an electrolyte layer interposed between the electrodes; and a cover member surrounding the electrode assembly, wherein the cable-type secondary battery is provided with a first polarity terminal and a second polarity terminal connected to the first polarity electrode and the second polarity electrode, respectively, at the first end of the cable-type secondary battery; a housing cap configured to fix the first and second polarity terminals and cover the first end of the cable-type secondary battery; and a length-adjustable coupling unit at a second end of the cable-type secondary battery. | 02-06-2014 |
20140045011 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide with high productivity a non-aqueous electrolyte secondary battery having superior battery characteristics and a high capacity. | 02-13-2014 |
20140045012 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide a non-aqueous electrolyte secondary battery having high capacity and superior safety and cycle characteristics. | 02-13-2014 |
20140045013 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide a non-aqueous electrolyte secondary battery having high capacity and superior safety. | 02-13-2014 |
20140045014 | BATTERY AND MANUFACTURE METHOD THEREOF - A battery includes a casing and a plurality of cell coils. The casing includes a bottom and a top, the bottom or the top surface of the casing are not symmetrical with each other and the multiple cell coils are placed in the casing and are electrically connected to each other. Each of the cell coils includes a positive node, a negative node and an insulation sheet, and the insulation sheet is between the positive node and the negative node. An outer diameter of the cell coil changes along with the shape of the casing. A manufacture method of a battery is provided. | 02-13-2014 |
20140045015 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a flat winding electrode assembly including a positive electrode substrate exposed portion on one end and a negative electrode substrate exposed portion on the other end. The winding numbers of the positive and the negative electrode substrate exposed portions are each 30 or more. The positive and negative electrode substrate exposed portions each have an outermost surface welded and connected with a positive and a negative electrode collectors, respectively. A nonaqueous electrolyte used to fabricate the battery contains a lithium salt having an oxalate complex as an anion. At the welded connection portions, all of the layers of the positive electrode substrate exposed portion are melted to be welded and connected to the positive electrode collector, and all of the layers of the negative electrode substrate exposed portion are melted to be welded and connected to the negative electrode collector. | 02-13-2014 |
20140045016 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery according to an embodiment of the invention includes: a flat electrode assembly including a positive electrode and a negative electrode; a bottomed prismatic hollow outer can storing the flat electrode assembly and a nonaqueous electrolyte and having an opening portion; and a sealing plate sealing the opening portion of the hollow outer can. The flat electrode assembly has a portion, other than the side facing the sealing plate, covered with an insulating sheet. The nonaqueous electrolyte contains lithium difluorophosphate (LiPF | 02-13-2014 |
20140045017 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a prismatic nonaqueous electrolyte secondary battery according to an embodiment of the invention, a flat winding electrode assembly and a nonaqueous electrolyte are housed in a prismatic outer body. A positive electrode includes a positive electrode substrate exposed portion formed along the longitudinal direction. A negative electrode includes a negative electrode substrate exposed portion formed along the longitudinal direction. The nonaqueous electrolyte contains a lithium salt having an oxalate complex as an anion at the time of making the nonaqueous electrolyte secondary battery. The winding electrode assembly has a winding end of the negative electrode disposed on a further outer side than that of the positive electrode. The winding number of the positive electrode and the negative electrode are each 15 or more. | 02-13-2014 |
20140045018 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly and a nonaqueous electrolyte. The electrode assembly is formed by winding a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The capacity of the battery is not less than 4 Ah. The number of stacked layers of the positive electrode in a section that includes the center of the nonaqueous electrolyte secondary battery is not less than 50. The positive and negative electrode opposed capacity ratio is 1.1 to 1.4. The nonaqueous electrolyte contains lithium difluorophosphate. | 02-13-2014 |
20140045019 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a flat winding electrode assembly formed by winding elongated positive and negative electrodes with an elongated separator interposed therebetween; and an outer body storing the flat winding electrode assembly and a nonaqueous electrolyte. The flat winding electrode assembly includes a positive electrode substrate exposed portion wound on one end, and a negative electrode substrate exposed portion wound on the other end. A positive electrode collector is welded and connected to both sides of the outermost surface of the wound positive electrode substrate exposed portion. A negative electrode collector is welded and connected to both sides of the outermost surface of the wound negative electrode substrate exposed portion. The nonaqueous electrolyte contains a lithium salt having an oxalate complex as an anion at the time of making the nonaqueous electrolyte secondary battery. This structure provides a nonaqueous electrolyte secondary battery that has excellent cycling characteristics. | 02-13-2014 |
20140045020 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery according to an embodiment of the invention includes: a flat electrode assembly including a positive electrode and a negative electrode; a bottomed prismatic hollow outer can storing the flat electrode assembly and a nonaqueous electrolyte and having an opening portion; and a sealing plate sealing the opening portion of the hollow outer can. The nonaqueous electrolyte contains at least one of a lithium salt having an oxalate complex as an anion and lithium difluorophosphate (LiPF | 02-13-2014 |
20140045021 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A prismatic nonaqueous electrolyte secondary battery includes: a flat electrode assembly including a positive electrode and a negative electrode; an outer can storing the flat electrode assembly and a nonaqueous electrolyte; and a sealing plate sealing an opening portion of the outer can. The flat electrode assembly has a portion thereof other than the side facing the sealing plate, covered with an insulating sheet. The nonaqueous electrolyte contains at least one of a lithium salt having an oxalate complex as an anion and lithium difluorophosphate (LiPF | 02-13-2014 |
20140045022 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a prismatic nonaqueous electrolyte secondary battery, a flat winding electrode assembly and a nonaqueous electrolyte are housed in a prismatic outer body. A positive electrode includes a positive electrode substrate exposed portion formed along the longitudinal direction. A negative electrode includes a negative electrode substrate exposed portion formed along the longitudinal direction. The nonaqueous electrolyte contains a lithium salt having an oxalate complex as an anion at the time of making the nonaqueous electrolyte secondary battery. The area of the negative electrode substrate exposed portion is 700 cm | 02-13-2014 |
20140045023 | RECHARGEABLE BATTERY WITH A JELLY ROLL HAVING MULTIPLE THICKNESSES - The disclosed embodiments relate to the design of a battery cell with multiple thicknesses. This battery cell includes a jelly roll enclosed in a pouch, wherein the jelly roll includes layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The jelly roll also includes a first conductive tab coupled to the cathode and a second conductive tab coupled to the anode. The jelly roll is enclosed in a flexible pouch, and the first and second conductive tabs are extended through seals in the pouch to provide terminals for the battery cell. Furthermore, the battery cell has two or more thicknesses, wherein the different thicknesses are created by removing material from one or more of the layers before winding the layers together. | 02-13-2014 |
20140050955 | MECHANICAL SUPPORT STRUCTURE IN A BATTERY POUCH - The described embodiments relate to the design of a package for a battery cell. This battery cell includes a jelly roll with layers that are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. Moreover, a pouch encloses the battery cell. Furthermore, a mechanical support structure, within the pouch, surrounds a portion of an outer surface of the jelly roll. | 02-20-2014 |
20140050956 | SINGLE WINDING CORE, LITHIUM CELL WITH SINGLE WINDING CORE AND SUCCESSIVE WINDING METHOD FOR SINGLE WINDING CORE - Provided include a single winding core, a lithium cell with a single winding core, and a successive winding method of a single winding core, where a positive area on a surface of a positive plate corresponds to a negative area on a surface of a negative plate of the single winding core; a plurality of positive tabs and a plurality of negative tabs are respectively disposed at one side of the positive plate and the negative plate, and the negative tabs and the positive tabs are arranged to be interlaced with each other. Thereby, after the positive plate, a first isolation film, the negative plate, and a second isolation film are sequentially stacked and then successively wound, the positive tabs and negative tabs respectively form a positive and a negative tab groups, rendering the single winding core capable of high-current discharge. | 02-20-2014 |
20140050957 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - Disclosed are an improved electrode assembly which may allow an electrode plate to be more easily impregnated with an electrolyte and also ensure gas to be easily discharged, and a secondary battery having the electrode assembly. The electrode assembly includes at least one cathode plate formed by coating an electrode current collector with a cathode active material, at least one anode plate formed by coating an electrode current collector with an anode active material, and a separator interposed between the cathode plate and the anode plate and having at least one vent formed therein. | 02-20-2014 |
20140050958 | ELECTRODE ASSEMBLY HAVING STEPPED PORTION, AS WELL AS BATTERY CELL, BATTERY PACK, AND DEVICE INCLUDING THE ELECTRODE ASSEMBLY - There is provided an electrode assembly comprising at least one stacked and folded type electrode stack in which a plurality of electrode units having electrode tabs are stacked in a state that the electrode units are separated by a sheet of separating film. The stacked and folded type electrode stack includes at least one stepped portion formed of electrode units having different areas and stacked on one another. | 02-20-2014 |
20140050959 | STEPWISE ELECTRODE ASSEMBLY HAVING VARIOUSLY-SHAPED CORNER AND SECONDARY BATTERY, BATTERY PACK AND DEVICE COMPRISING THE SAME - There is provided an electrode assembly having steps including: a first electrode stair including at least one first electrode unit; and a second electrode stair including at least one second electrode unit having an area different from that of the first electrode unit, wherein the first electrode stair and the second electrode stair are stacked to be adjacent, separated by at least one separator as a boundary therebetween and including one or more electrode laminates having steps formed by a difference between areas of the first electrode stair and the second electrode stair, and shapes of the corners of the first electrode stair and the second electrode stair having steps are different. There is also provided a secondary battery including the electrode assembly. Secondary batteries having various designs without restriction in shapes of corners of electrode units can be provided. | 02-20-2014 |
20140057147 | Method and Apparatus For Flexible Battery - In accordance with an example embodiment of the present invention, an apparatus is disclosed. The apparatus includes a single battery ribbon and vacuum packaging. The single battery ribbon includes a first portion, a second portion, and an interconnecting portion between the first portion and the second portion. The first portion includes a first block. The second portion includes a second block. The first portion, the second portion, and the interconnecting portion form a continuous single layer including an anode and a cathode. The vacuum packaging surrounds the single battery ribbon. The vacuum packaging includes a middle connecting portion configured to contact a first side of the interconnecting portion and a second opposite side of the interconnecting portion. | 02-27-2014 |
20140065457 | MULTIPLE ELECTRODE SUBSTRATE THICKNESSES IN BATTERY CELLS FOR PORTABLE ELECTRONIC DEVICES - The disclosed embodiments provide a battery cell. The battery cell includes an electrode containing an active material and a continuous substrate. The continuous substrate includes a first thickness to maintain a tensile strength of the continuous substrate and a second thickness that is less than the first thickness to accommodate the active material. The first and second thicknesses may thus improve the energy density and/or rate capability of the battery cell without producing manufacturing defects associated with the use of thinner electrode substrates in battery cells. | 03-06-2014 |
20140072848 | LITHIUM-ION SECONDARY CELL AND METHOD FOR MANUFACTURING SAME - The cell has a wound electrode assembly | 03-13-2014 |
20140072849 | ELECTRIC STORAGE DEVICE - An electric storage device includes an electrode assembly, in which a positive electrode and a negative electrode in the shape of a sheet are wound with a separator sandwiched therebetween. The electrode assembly has a flat shape and includes a first flat portion and a second flat portion, which are opposed to each other, and a first curved portion and a second curved portion which connect end portions of the first and second flat portions together. One of the positive electrode and the negative electrode covers an inner-circumferential end portion of the other electrode and is disposed on an innermost circumference of the electrode assembly. An inner-circumferential end portion of the one of the electrodes causes an elastic force to act outwardly on the other electrode. | 03-13-2014 |
20140072850 | STEPPED ELECTRODE ASSEMBLY HAVING PREDETERMINED A THICKNESS RATIO IN THE INTERFACE BETWEEN ELECTRODE UNITS, BATTERY CELL AND DEVICE COMPRISING THE SAME - There are provided an electrode assembly, and a battery cell, a battery pack, and a device. The electrode assembly includes a combination of two or more types of electrode units having different areas, wherein the electrode units are stacked such that steps are formed, and electrode units are formed such that a positive electrode and a negative electrode face one another at an interface between the electrode units. | 03-13-2014 |
20140072851 | SECONDARY BATTERY OF NOVEL STRUCTURE - Disclosed is a secondary battery having a novel structure in which a jelly-roll type electrode assembly (“jelly-roll”) in which a cathode including a cathode active material coated portion on at least one surface of a cathode current collector, an anode including an anode active material coated portion on at least one surface of an anode current collector, and a separator disposed therebetween are wound and an electrolyte are accommodated in a battery case, and at least one of a cathode lead coupled to a cathode uncoated portion and an anode lead coupled to an anode uncoated portion includes a first metal layer used for coupling with an electrode uncoated portion and/or coupling with a battery case and a second metal layer having a relatively lower resistance than that of the first metal layer, wherein the first and second metal layers are coupled to each other. | 03-13-2014 |
20140072852 | ANODE FOR SECONDARY BATTERY AND SECONDARY BATTERY HAVING THE SAME - The present invention relates to an anode for a secondary battery, comprising at least two anode wires which are parallel to each other and spirally twisted, each of the anode wires having an anode active material layer coated on the surface of a wire-type current collector; and a secondary battery comprising the anode. The anode of the present invention has an increased surface area to react with Li ions during a charging and discharging process, thereby improving the rate characteristics of a battery, and also release stress or pressure applied in the battery, e.g., the volume expansion of active material layers to prevent the deformation of the battery and ensure the stability thereof, thereby improving the life characteristic of the battery. | 03-13-2014 |
20140079971 | LITHIUM BATTERY STRUCTURE - A lithium battery structure mainly comprises a case having a cover plate connected with a first terminal component and a second terminal component. The first terminal component is electrically connected to a top end of the anode plate, a bottom end of the anode plate is extended and bent downwardly to form an anode coupling portion, and the anode coupling portion is connected to at least an anode tab at a top end of the winding core. The second terminal component is electrically connected to a top end of the cathode plate, a bottom end of the cathode plate is extended and bent downwardly to form a cathode coupling portion, and the cathode coupling portion is connected to at least a cathode tab at the top end of the winding core. | 03-20-2014 |
20140079972 | ANODE BALANCED LITHIUM-IRON DISULFIDE PRIMARY CELL - A primary electrochemical cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS | 03-20-2014 |
20140087222 | ELECTRIC STORAGE ELEMENT - An electrode assembly has a positive sheet, a negative sheet, and separators that are stacked and wounded. A joint portion is formed by thermally fusion bonding or compression bonding of the separators at one end in a width direction thereof so that one end of the positive sheet on an opposite side in a width direction with respect to a positive lead is wrapped by the separators. Arranged outside of the joint portion in the width direction is a separating portion where the separators are separated from each other. A protecting layer made of an insulating material is formed on the end face of the positive sheet. The positive sheet is reliably prevented from being in contact with a foreign material. | 03-27-2014 |
20140087223 | ELECTRIC STORAGE ELEMENT - A battery includes positive and negative external terminals having exposed portions exposed from a casing to the outside, positive and negative current collectors connected to the external terminals, and electrode assemblies having positive and negative electrodes and a separator. The positive and negative electrodes are wound with the separator being interposed so as to have positions shifted to opposite sides in a width direction to the separator. Formed in the casing is a narrowly elongated gap extending between the positive current collector side and the negative current collector side. The positive electrode side of the gap is closed by a closure member. A foreign material is prevented from moving without decreasing an electric capacity of the battery and deteriorating injection property of an electrolytic solution. | 03-27-2014 |
20140087224 | ELECTRODE ASSEMBLY HAVING STEP, BATTERY CELL, BATTERY PACK AND DEVICE INCLUDING THE SAME - There is provide an electrode assembly including an electrode laminate having a plurality of electrode units rolled up to be stacked on one another in at least two rectangularly shaped separation films, the electrode assembly being characterized in that at least one of two rectangularly shaped separation films is disposed on upper and lower surfaces of the respective electrode unit, at least one separation film disposed on one surface being different from a separation film disposed on another surface, and the electrode laminate includes at least one step formed by stacking an electrode unit having a difference in area from an electrode unit adjacent thereto, having one of the rectangularly shaped separation films as a boundary therebetween. | 03-27-2014 |
20140087225 | High-capacity Cylindrical Lithium Ion Battery and Production Method Thereof - The invention discloses a high-capacity cylindrical lithium ion battery. Tab-position end face is shaped; a high frequency oscillation and pressure are applied on to make the foil bodies softened in the scope of 0.1-6.5 mm. At the instant of high-frequency oscillation, the rigidity of the foil body is greatly decreased; and the foil bodies are mutually wound and compressed together, so that the weight density of the foil body in unit volume is increased and meanwhile, the rigidity of the compressed foil body at the Tab-position end face is greatly increased, thereby laying a firm foundation for laser welding of the 1 Tab-position end face and a current collector, increasing a laser welding effective area of the Tab-position end face and the current collector, and improving the welding strength. | 03-27-2014 |
20140087226 | Secondary-Battery Electrode Group Unit and Method of Manufacturing the Same - A secondary-battery electrode group unit with its electrodes and current collecting members reliably fixed to each other and enabling a large current flow is provided, and a method of manufacturing the secondary-battery electrode group unit is also provided. A conductive member is mechanically and electrically connected to a current collecting portion of a current collecting member and a terminal forming portion to form, besides a current path passing through the current collecting portion and the terminal forming portion, another current path allowing a current to flow from a part of the current collecting portion to the terminal forming portion. | 03-27-2014 |
20140093762 | BATTERY CELL OF CURVED SHAPE AND BATTERY PACK EMPLOYED WITH THE SAME - Disclosed herein is a battery cell configured such that an electrode assembly of a cathode/separator/anode stack structure is mounted in a changeable cell case in a state in which the electrode assembly is impregnated with an electrolyte, wherein the electrode assembly and the cell case are curved in the same direction on axial vertical sections thereof in a state in which opposite ends of the electrode assembly and opposite ends of the cell case are directed in the same direction about a middle part of the electrode assembly and a middle part of the cell case. When the battery cell is mounted in an electronic device the external shape of which is curved or in an electronic device configured such that a battery mounting region thereof is curved, the tight contact between the battery cell and the electronic device is achieved, thereby maximizing space utilization and thus providing high efficiency. Also, electronic devices having aesthetically pleasing appearance and various designs satisfying liking of consumers are developed using the battery cell. | 04-03-2014 |
20140099525 | ELECTRODE ASSEMBLY HAVING STEPPED PORTION, AS WELL AS BATTERY CELL, BATTERY PACK, AND DEVICE INCLUDING THE ELECTRODE ASSEMBLY - There is provided an electrode assembly. The electrode assembly includes a stack of unit cells respectively including at least one negative electrode and at least one positive electrode, alternately stacked, wherein at least one separator is placed on each of both sides of the electrodes, and at least one of the unit cells has an area different from that of an adjacent unit cell to form at least one stepped portion on the electrode assembly. In addition, there are also provided a battery cell, a battery pack, and a device that include the electrode assembly. | 04-10-2014 |
20140106193 | ELECTRODE ASSEMBLY WITH POROUS STRUCTURE AND SECONDARY BATTERY INCLUDING THE SAME - The present invention relates to an electrode assembly of a porous structure and a secondary battery including the same. In an electrode assembly including a plurality of anodes, cathodes, and separators, the present invention provides a secondary battery including an electrode assembly including one or more through holes, and a passing sealing portion supplementarily sealed on positions corresponding to the through holes. The secondary battery according to the present invention may prevent the inner short and increase safety by including the fused portion of an electrode assembly and a battery case, stably fixing them, and holding back the movement of the electrode assembly. In addition, the present invention has an effect of being capable of greatly enhancing impregnation on electrolyte since the electrode assembly has a porous structure. | 04-17-2014 |
20140106194 | BATTERY WITH MULTIPLE JELLY ROLLS IN A SINGLE POUCH - The disclosed embodiments provide a battery cell which includes a set of jelly rolls enclosed in a pouch. Each jelly roll includes layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a first set of conductive tabs and a second set of conductive tabs. Each of the first set of conductive tabs is coupled to the cathode of one of the jelly rolls, and each of the second set of conductive tabs is coupled to the anode of one of the jelly rolls. At least one of the first set and one of the second set of conductive tabs extend through seals in the pouch to provide terminals for the battery cell. | 04-17-2014 |
20140120394 | STEPPED ELECTRODE ASSEMBLY HAVING PREDETERMINED A REVERSIBLE CAPACITANCE RATIO IN THE INTERFACE BETWEEN ELECTRODE UNITS, BATTERY CELL AND DEVICE COMPRISING THE SAME - There are provided an electrode assembly, and a battery cell, a battery pack, and a device. The electrode assembly includes a combination of two or more types of electrode units having different areas, wherein the electrode units are stacked such that steps are formed, and electrode units are formed such that a positive electrode and a negative electrode face one another at an interface between the electrode units. | 05-01-2014 |
20140120395 | CELL COIL OF A LITHIUM ION RECHARGEABLE BATTERY AND METHOD FOR PRODUCING A CELL COIL - The invention relates to a cell coil of a lithium ion rechargeable battery, including at least two conductors ( | 05-01-2014 |
20140120396 | RECHARGEABLE BATTERY - A rechargeable battery includes a battery pack, a battery lid, and an electrode and an external terminal connected by an electricity connector. A laminated portion of the electrodes comprising a lump of wound electrodes is separated into two bundle electrode connecting portions from a center side of the wound electrodes in the thickness direction outward of the battery pack. The electricity collector is provided with a main plate joined to the bundles, a rib plate bent from the main plate and extending outward of the battery pack, a mounting plate extending along the inside of the battery lid, and a connecting plate bent from of the mounting plate and extending toward a bottom surface of the battery pack. A coupling plate is inclined from this bottom end of the connecting plate toward the bundles and is coupled to one end of a joint plate on the battery lid side. | 05-01-2014 |
20140120397 | ELECTRODE ASSEMBLY HAVING EXCELLENT ELECTRODE TAB CONNECTIVITY AND BATTERY CELL AND DEVICE INCLUDING ELECTRODE ASSEMBLY - An electrode assembly and a method of manufacturing the same are provided. The electrode assembly includes an electrode stack including at least one anode, at least one cathode, and at least one separation film and a plurality of cathode tabs and a plurality of anode tabs for electrically connecting the electrode stack. In this case, the electrode tabs are arranged to allow the electrode tabs having the same polarity to be electrically connected to one another while a portion of the electrode tabs having the same polarity are arranged so as not to overlap one another on the same plane. | 05-01-2014 |
20140141303 | BATTERY, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE APPARATUS, AND ELECTRIC POWER SYSTEM - An anode includes an anode double side coating section; a first anode single-side coating section; and an anode double side non-coating section, the anode double side non-coating section, the first anode single-side coating section, and the anode double side coating section are provided in this order from a first end on the side of spiral winding start of the anode, and in an anode, (“Area density of an anode mixture layer on the first main surface side of the first anode single-side coating section”)/(“Area density of the anode mixture layer on the first main surface side of sections other than the first anode single-side coating section”) is equal to or more than about 1.2. | 05-22-2014 |
20140141304 | LITHIUM ION SECONDARY BATTERY AND METHOD OF MANUFACTURING LITHIUM ION SECONDARY BATTERY - In a lithium ion secondary battery, a negative electrode sheet is made of a metal foil and an active material layer containing active material particles. The negative active material layer includes a facing portion that faces a positive active material layer and a non-facing portion that does not face the same. The negative active material particles can be oriented in a magnetic field direction. When an angle between an extending direction of a major axis of the cross section of each particle and the metal foil is θ, the number of particles with the angle θ of 60°-90° is MA, the number of negative active material particles with the angle θ of 0°-30° is MB, and a value MA/MB is assumed to be an orientation degree (AL) of particles, the negative active material layer is made such that an orientation degree (AL | 05-22-2014 |
20140141305 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a wound electrode group, a positive electrode | 05-22-2014 |
20140147714 | ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY HAVING THE SAME - An electrode assembly includes a positive electrode including a positive active material layer on each of first and second surfaces of a positive electrode current collector, a negative electrode including a negative active material layer on each of first and second surfaces of a negative electrode current collector, and an inner separator between the positive electrode and the negative electrode, wherein each of the positive electrode and the negative electrode includes a side end uncoated region at respective side ends of the positive electrode and the negative electrode, the side end uncoated regions of each of the positive and negative electrodes including no active material layers on respective electrode current collectors, and wherein at least one of the positive electrode and the negative electrode has an inner uncoated region positioned at a center of the electrode assembly, the inner uncoated region including no active material layer thereon. | 05-29-2014 |
20140147715 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery includes an electrode group formed by winding a positive electrode having a positive electrode current collector and a positive electrode active material layer, and a negative electrode having a negative electrode current collector and a negative electrode active material layer, with a separator interposed between the electrodes. A wound positive electrode current collector exposing section faces a wound negative electrode current collector exposing section with the separator interposed therebetween, thereby forming a heteropolar electrode current collector facing zone corresponding to at least one turn in the electrode group. A unipolar electrode current collector facing zone, in which adjacent portions of the wound current collector exposing section or the wound current collector exposing section face each other directly or with the separator interposed therebetween corresponds to at least one turn in the electrode group. | 05-29-2014 |
20140147716 | JELLY-ROLL OF IMPROVED PRODUCTIVITY AND BATTERY CELL COMPRISING THE SAME - Disclosed herein is a jelly roll for a secondary battery configured by winding a cathode sheet, a separator, and an anode sheet, wherein electrode tabs are connected to uncoated portions of the electrode sheets, to which electrode active materials are not applied, by welding, and each of the electrode tabs is configured to have an embossed structure protruding toward the uncoated portion to improve weldability. | 05-29-2014 |
20140154543 | SECONDARY BATTERY OF EXCELLENT PRODUCTIVITY AND SAFETY - Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a woven fabric or a knit fabric made of fibers. | 06-05-2014 |
20140154544 | RECTANGULAR BATTERY - Disclosed is a rectangular battery in which an electrode group formed by winding a first electrode and a second electrode with a separator interposed therebetween is housed in a battery case having an opening sealed by a sealing plate. The first electrode is electrically connected to the sealing plate, and the second electrode is electrically connected to a current collector plate provided between the sealing plate and the electrode group and extending along a longer side direction of the sealing plate. The sealing plate has a lower-strength portion configured to be deformed prior to the other portions of the sealing plate to provide a contact between the sealing plate and the current collector plate when the sealing plate receives an external pressure along the longer side direction of the sealing plate. | 06-05-2014 |
20140162102 | SECONDARY BATTERY WITH EXCELLENT PRODUCTIVITY AND SAFETY - Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a molded article made of a polymer resin or a polymer composite and a plurality of fine pores is perforated through the molded article. | 06-12-2014 |
20140170452 | NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY, CURRENT COLLECTOR AND VEHICLE - A nonaqueous electrolytic solution secondary battery includes an electrode body that contains a positive electrode and a negative electrode. An upper limit operating potential of the positive electrode is 4.5 V or more based on metallic lithium. The positive electrode includes a current collector and an active material layer formed on the current collector. The current collector includes a base material and a surface layer disposed on a surface of the base material. The surface layer is disposed at least in a region where the active material layer is not formed on the surface of the base material. The surface layer is formed of an aluminum material having an aluminum content of 99.85% by mass or more. The base material is formed of a conductive material having strength larger than strength of the surface layer. | 06-19-2014 |
20140170453 | ANODE FOR SECONDARY BATTERY AND SECONDARY BATTERY HAVING THE SAME - The present invention relates to an anode for a secondary battery, comprising: a spiral anode having at least two anode wires which are parallel to each other and spirally twisted, each of the anode wires having an anode active material layer coated on the surface of a wire-type current collector; and a conductive layer formed to surround the spiral anode. | 06-19-2014 |
20140170454 | ANODE FOR SECONDARY BATTERY AND SECONDARY BATTERY HAVING THE SAME - The present invention relates to an anode for a secondary battery, comprising: a wire-type current collector; a metal-based anode active material layer formed on the surface of the wire-type current collector, and comprising a metallic active material; and a graphite-based anode composite layer formed on the surface of the metal-based anode active material layer, and comprising a mixture of a graphite-based active material, a conductive material and a first polymer binder. | 06-19-2014 |
20140170455 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core for supplying lithium ions, an inner electrode active material layer formed on the surface of the inner current collector, and an electrolyte-absorbing layer formed on the outer surface of the inner electrode active material layer; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector. | 06-19-2014 |
20140170456 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an inner electrode having an inner current collector and an inner electrode active material layer surrounding the outer surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer, and having an outer electrode active material layer and an outer current collector comprising at least one of a conductive paste and a carbon fiber. | 06-19-2014 |
20140178725 | SECONDARY BATTERY WITH EXCELLENT PRODUCTIVITY AND SAFETY - Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case and a plate-shaped insulator is mounted on top of the jelly-roll, wherein the insulator has a porous structure in which a plurality of fine pores communicate in a longitudinal direction, or in traverse and longitudinal directions. | 06-26-2014 |
20140178726 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions; an inner electrode, comprising a spiral electrode formed by spirally twisting two or more wire-type inner current collectors coated with an inner electrode active material on the surface thereof; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer, and comprising an outer electrode active material layer and an outer current collector. | 06-26-2014 |
20140178727 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery comprising a polymer electrolyte having a first electrolyte layer comprising a mixture of a first polymer and a first organic electrolyte solution in a weight ratio of 50:50 and 80:20; and a second electrolyte layer formed on at least one surface of the first electrolyte layer and comprising a mixture of a second polymer and a second organic electrolyte solution in a weight ratio of 20:80 and 50:50. Since the multiple-layered polymer electrode film of the present invention exhibits good characteristics in terms of both mechanical property and ionic conductivity, the cable-type secondary battery comprising the same according to the present invention has superior battery performances and flexibility, as well as good strength for withstanding external impact. | 06-26-2014 |
20140178728 | ENERGY STORAGE DEVICE WITH POROUS ELECTRODE - A method of fabricating an energy storage device with a large surface area electrode comprises: providing an electrically conductive substrate; depositing a semiconductor layer on the electrically conductive substrate, the semiconductor layer being a first electrode; anodizing the semiconductor layer, wherein the anodization forms pores in the semiconductor layer, increasing the surface area of the first electrode; after the anodization, providing an electrolyte and a second electrode to form the energy storage device. The substrate may be a continuous film and the electrode of the energy storage device may be fabricated using linear processing tools. The semiconductor may be silicon and the deposition tool may be a thermal spray tool. Furthermore, the semiconductor layer may be amorphous. The energy storage device may be rolled into a cylindrical shape. The energy storage device may be a battery, a capacitor or an ultracapacitor. | 06-26-2014 |
20140178729 | FLEXIBLE JELLY-ROLL TYPE SECONDARY BATTERY - There is provided a jelly-roll type electrode assembly. In the jelly-roll type electrode assembly including a cathode including a cathode active material coating layer and an anode including an anode active material coating layer, with a separation film interposed therebetween, and formed to be rolled, the jelly-roll type electrode assembly is characterized in that the anode and the cathode include uncoated portions, the uncoated portions are overlapped and include mirror images formed on a front surface and a rear surface, and the jelly-roll type electrode assembly is flexible in the uncoated portion. A pouch-type secondary battery, a battery pack and a device including the electrode assembly are provided. A flexible jelly-roll type secondary battery may be reversibly flexible while blocking the separation of an electrode active material from a current collector surface. | 06-26-2014 |
20140178730 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery is disclosed. The non-aqueous electrolyte battery include a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. The negative electrode includes an anode mixture layer having a volume density of 1.70 to 1.90 g/cm | 06-26-2014 |
20140178731 | BATTERY AND METHOD OF MANUFACTURING BATTERY - It is a task of the invention to provide a battery that allows a gas produced inside a flat wound electrode body to be easily discharged to the outside of the electrode body, and restrains an electrolytic solution (a retained electrolytic solution) extruded from the flat wound electrode body through charge/discharge from directly flowing out to the outside of the flat wound electrode body, and a method of manufacturing this battery. The battery is equipped with a flat wound electrode body, a collector member, and a retained electrolytic solution. The flat wound electrode body has an active material layer wound portion that is obtained by winding an electrode plate, has a flat oval cross-section, and has a wound active material layer forming portion, and an exposed wound portion that has a wound foil exposed portion. An exposed wound central portion is detached from at least one of two exposed wound end portions while maintaining contact with an active material layer wound portion that is adjacent to the exposed wound central portion in an axial direction. The collector member is joined to the exposed wound central portion. | 06-26-2014 |
20140178732 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a non-aqueous electrolyte secondary battery having a high capacity and an improved cycle life. The battery includes an electrode group and a non-aqueous electrolyte, and has a volume energy density of 650 Wh/L or more. The electrode group includes wound positive and negative electrodes with a separator interposed therebetween. The positive and negative electrodes each include a current collector and a material mixture layer adhering thereto. The positive and negative electrode material mixture layers each have a porosity P | 06-26-2014 |
20140186671 | SECONDARY CELL - The present invention provides a method for manufacturing a secondary cell, comprising the steps of: disposing two sheets of separators ( | 07-03-2014 |
20140186672 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core, and an inner electrode active material layer formed on the surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector. | 07-03-2014 |
20140186673 | CABLE-TYPE SECONDARY BATTERY AND METHOD OF PREPARING THE SAME - Provided is a cable-type secondary battery having a predetermined-shaped horizontal cross section and extending in a longitudinal direction, which includes a hollow core portion having a gel polymer electrolyte injected thereinto, an inner electrode which includes an inner current collector surrounding an outer surface of the hollow core portion and an inner electrode active material layer formed on a surface of the inner current collector, a separation layer surrounding an outer surface of the inner electrode, an outer electrode which includes an outer electrode active material layer surrounding an outer surface of the separation layer and an outer current collector surrounding an outer surface of the outer electrode active material layer, and a protective coating layer. | 07-03-2014 |
20140193681 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an inner electrode having an inner current collector and an inner electrode active material layer surrounding the outer surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and having an outer electrode active material layer and an open-structured outer current collector. | 07-10-2014 |
20140193682 | LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING LITHIUM ION SECONDARY BATTERY - A ratio La/Lb between lengths La and Lb is defined as a first ratio, and a ratio Sa/Sb between areas Sa and Sb is defined as a second ratio. The first and second ratios are positioned within a region surrounded by lines connecting five points P1 to P5 in a coordinate system in which the first and second ratios are taken as the respective coordinate axes thereof. The point P1 has a first ratio of 0.273 and a second ratio of 0.099. The point P2 has a first ratio of 0.636 and a second ratio of 0.099. The point P3 has a first ratio of 0.836 and a second ratio of 0.496. The point P4 has a first ratio of 0.545 and a second ratio of 0.496. The point P5 has a first ratio of 0.236 and a second ratio of 0.215. | 07-10-2014 |
20140199571 | RECHARGEABLE BATTERY - A rechargeable battery includes: an electrode assembly formed by winding a positive and negative electrode plate and a separator between the electrode plates, and including a cavity along an axial direction of the electrode assembly; a center pin along the axial direction and housed in the cavity; a can having an opening; and a cap assembly configured to close the opening, wherein the center pin includes: a center portion along a radial direction of the center pin; a first perimeter portion coupled to a first end portion of the center portion and extending from the first end portion toward a second end portion of the center portion; and a second perimeter portion coupled to the first end portion of the center portion and extending from the first end portion toward the second end portion in a circumferential direction opposite to a circumferential direction of the first perimeter portion. | 07-17-2014 |
20140205879 | BATTERY CELL OF NOVEL STRUCTURE - Disclosed herein is a battery cell configured to have a structure in which an electrode assembly is mounted in a battery case formed of a laminate sheet including a resin layer and a metal layer in a state in which the electrode assembly are connected to electrode terminals protruding outward from the battery case. The electrode assembly is configured such that separators are respectively disposed between cathodes and anodes, each of which is formed by applying a compound including an electrode active material to a current collector. At least a portion of an inside of the battery case corresponding to an outer circumference of the electrode assembly has an upward sloping structure in which a width of the battery case increases upward in vertical section or a downward sloping structure in which the width of the battery case increases downward in vertical section. | 07-24-2014 |
20140212715 | RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly including a separator and electrode layers on opposite sides of the separator, the electrode assembly being wound such that curved surface portions are at opposing sides of the electrode assembly and a plane surface portion is between the curved surface portions, a pressing member that presses at least one part of the curved surface portions and the plane surface portion, a case containing the pressing member and the electrode assembly, and a cap plate electrically connected to the electrode assembly and coupled to the case. | 07-31-2014 |
20140212716 | Monolithic three-dimensional electrochemical energy storage system on aerogel or nanotube scaffold - A monolithic three-dimensional electrochemical energy storage system is provided on an aerogel or nanotube scaffold. An anode, separator, cathode, and cathodic current collector are deposited on the aerogel or nanotube scaffold. | 07-31-2014 |
20140212717 | LITHIUM-ION SECONDARY BATTERY AND MANUFACTURING METHOD FOR SAME - An object of this present invention is to provide: a lithium-ion secondary battery | 07-31-2014 |
20140212718 | PRISMATIC BATTERY - Provided is a prismatic battery resistant to the development of short circuits. The prismatic battery has a structure in which a flat electrode including a positive electrode collector with a positive electrode substrate exposed portion and a negative electrode collector with a negative electrode substrate exposed portion is accommodated in an outer can. At least one of the positive electrode collector and the negative electrode collector has a rib. The rib is provided with an easily bendable part (a thin wall, groove, opening, or notch). The rib is bent at the easily bendable part when force is applied to the tip of the rib to prevent the tip from reaching the outer can by means of an insulation sheet to avoid the development of short circuits between the negative electrode collector and the outer can. | 07-31-2014 |
20140212719 | CABLE-TYPE SECONDARY BATTERY - Described herein is a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode surrounding the outer surface of the core for supplying lithium ions, and comprising an inner current collector in the form of a pipe having a three-dimensional network structure, the inner current collector being coated with an inner electrode active material on the outer surface thereof; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector. | 07-31-2014 |
20140212720 | CABLE-TYPE SECONDARY BATTERY - Disclosed herein is a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core for supplying lithium ions, an inner electrode active material layer formed on the surface of the inner current collector, and a first electrolyte-absorbing layer formed on the outer surface of the inner electrode active material layer; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; a second electrolyte-absorbing layer formed on the surface of the separator; and an outer electrode surrounding the outer surface of the second electrolyte-absorbing layer and comprising an outer electrode active material layer and an outer current collector. | 07-31-2014 |
20140220399 | LITHIUM SECONDARY CELL ARRAY - The invention relates to a lithium secondary cell array in a cylindrical design, comprising a winding mandrel and a winding packet, which contains foil-like coated strips and contacting strips that form the electric cell structure consisting of anode, cathode and separator. The cell array further comprises outer electrical connecting means that comprise pole caps. According to the invention, the winding mandrel consists of an insulating material and has a through-channel extending in the longitudinal axis direction. The winding mandrel is connected to an inner pole cap at each end, the pole caps likewise having a respective through-channel. In addition, one outer pole cap having a through-passage is respectively provided, which surrounds the winding packet circumferentially at leat in the edge region, wherein several radially arranged force-fit connecting means, each acting between the outer and the inner pole cap, are used to fix the winding packet and achieve the electrical contacting between the contacting strips and the outer pole cap. | 08-07-2014 |
20140220400 | CABLE-TYPE SECONDARY BATTERY CAPABLE OF WIRELESS CHARGE - The present invention provides a cable-type secondary battery capable of wireless charge. The cable-type secondary battery according to the present invention can be applied in a wireless charging method, thereby being conveniently charged as compared with conventional batteries which are charged with wires, and has an outer current collector configured in a wound form, which can overcome the problem of local charge caused by the shape of conventional cable-type batteries. Also, the outer current collector configured in a wound form acts as a current of electrodes, and also can act as a charger which generates a current by external magnetic field, thereby simplifying battery configuration. | 08-07-2014 |
20140220401 | BATTERY HAVING ENHANCED ELECTRICAL INSULATION CAPABILITY - Disclosed is a battery including a cathode in which cathode active-material coating layers provided on both surfaces of a cathode collector are longitudinally deviated from each other, and an anode having at least one anode active-material coating layer provided on an anode collector, the cathode and anode being wound to face each other with a separator interposed therebetween. At least one of a winding beginning portion and winding ending portion of the cathode is provided with a cathode uncoated part for installation of a cathode lead. An insulator tape is attached to the boundary of the cathode active-material coating layer at a position where the anode active-material coating layer faces a non-coating part of the cathode not containing the cathode active-material coating layer, achieving enhanced electrical insulation capability and consequential safety of the battery. | 08-07-2014 |
20140220402 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The nonaqueous electrolyte secondary battery | 08-07-2014 |
20140234679 | ELECTRODE ASSEMBLY, BATTERY CELL INCLUDING THE ELECTRODE ASSEMBLY, AND METHOD OF PREPARING THE BATTERY CELL - An electrode assembly is prepared by stacking and winding a first electrode, a second electrode, and a separator disposed between the first and second electrodes. The electrode assembly is curved to the center of an axis that is substantially parallel to a length direction of the electrode assembly, and the separator has a coated layer of a thermoplastic polymer on at least one side thereof. A battery cell including the electrode assembly, and a method of preparing the battery cell have also been disclosed. The battery cell including the electrode assembly may have a high strength. | 08-21-2014 |
20140234680 | ELECTRODE STRUCTURE HAVING ROLL SHAPE, ELECTRODE AND ELECTRIC DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE ELECTRODE STRUCTURE - An electrode structure includes a rolled graphene film which is wound about a central axis, and a nanomaterial dispersed on a surface of the rolled graphene film. | 08-21-2014 |
20140234681 | ANODE FOR CABLE-TYPE SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present invention relates to an anode for a cable-type secondary battery, more specifically an anode for a cable-type secondary battery, comprising a spiral electrode consisting of at least two wire-type electrodes which are spirally twisted with each other, each of the wire-type electrodes comprising a wire-type current collector, an anode active material layer formed by coating on the outer surface of the wire-type current collector, and a polymer resin layer formed by coating on the outer surface of the anode active material layer; and a cable-type secondary battery comprising the anode. The anode for a cable-type secondary battery according to the present invention comprises a polymer resin layer formed by coating on the outer surface of an anode active material layer, thereby preventing the release of the anode active material layer from a wire-type current collector and eventually preventing the deterioration of battery performances. | 08-21-2014 |
20140234682 | ELECTRODE ASSEMBLY INCLUDING ELECTRODE UNITS HAVING THE SAME WIDTH AND DIFFERENT LENGTHS, AND BATTERY CELL AND DEVICE INCLUDING THE ELECTRODE ASSEMBLY - There are provided an electrode assembly, a battery cell including the electrode assembly, and a device including the electrode assembly. The electrode assembly includes a combination of two or more electrode units having the same width and different lengths, wherein the electrode units are stacked so that a stepped portion is formed between the electrode units, and electrodes having different polarities face each other at an interface between the electrode units. | 08-21-2014 |
20140242433 | ELECTRODE ASSEMBLY WITH TAPE AND ELECTROCHEMICAL DEVICE COMPRISING THE SAME - The present disclosure relates to an electrode assembly for preventing a phenomenon of a separator being pressed and/or disconnected from occurring when a free edge electrode is wound into a jelly roll, and an electrochemical device comprising the electrode assembly. | 08-28-2014 |
20140242434 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY - Provided are negative electrode for lithium ion secondary batteries, which is capable of realizing a lithium ion secondary battery having characteristics such as stable output and stable capacity, and a lithium ion secondary battery having characteristics such as stable output and stable capacity. The negative electrode for lithium ion secondary batteries includes a laminated body of a negative electrode material layer that is mainly constituted by a carbonaceous material, and a negative electrode current collector. When the negative electrode material layer is in a dry state, a limit radius of curvature of a negative electrode is 15 mm or less. Content of the hard carbon in the carbonaceous material is preferably 5% by weight to 45% by weight. | 08-28-2014 |
20140255739 | ELECTROCHEMICAL CELL WITH MULTI-FACETED GEOMETRY - An electrochemical cell includes a cathode ( | 09-11-2014 |
20140255740 | SECONDARY BATTERY - A secondary battery includes an electrode assembly, a case having an opening at an upper portion to accommodate the electrode assembly, a cap plate for covering the opening of the case, and a retainer surrounding a corner portion of the electrode assembly, the retainer being disposed between the electrode assembly and a bottom of the case. | 09-11-2014 |
20140255741 | ELECTRODE FOR SECONDARY BATTERY, SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present invention provides an electrode for a secondary battery, more specifically an electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on at least one surface or the whole outer surface of the current collector; a conductive material-coating layer formed on the top surface of the electrode active material layer and comprising a conductive material and a first polymer binder; and a porous coating layer formed on the top surface of the conductive material-coating layer and comprising a second polymer binder. Also, the present invention provides a secondary battery and a cable-type secondary battery comprising the electrode | 09-11-2014 |
20140255742 | ELECTRODE FOR SECONDARY BATTERY, SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present invention provides an electrode for a secondary battery, more specifically an electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on at least one surface or the whole outer surface of the current collector; a graphite-based coating layer formed on the top surface of the electrode active material layer and comprising graphite, a conductive material and a first polymer binder; and a porous coating layer formed on the top surface of the graphite-based coating layer and comprising a second polymer binder. Also, the present invention provides a secondary battery and a cable-type secondary battery comprising the electrode. | 09-11-2014 |
20140255743 | BALANCED STEPPED ELECTRODE ASSEMBLY, AND BATTERY CELL AND DEVICE COMPRISING THE SAME - There are provided an electrode assembly, and a battery cell, a battery pack, and a device. The electrode assembly includes a combination of two or more types of electrode units having different areas, wherein the electrode units are stacked such that steps are formed, and electrode units are formed such that a positive electrode and a negative electrode face one another at an interface between the electrode units. | 09-11-2014 |
20140255744 | JELLY ROLL OF BATTERY CELL FOR SECONDARY BATTERY - Provided is a secondary battery, and more particularly, is a jelly roll of a battery cell for a secondary battery having an electrode plate and a separator as basic components. The jelly roll of a battery cell for a secondary battery of the present invention enables the manufacture of a battery cell having improved insulation resistance, thereby improving the reliability of the battery cell, and the electrolyte wetting of the jelly roll, which may be deteriorated due to the contractile tube, can be facilitated. | 09-11-2014 |
20140272503 | DROP AND VIBRATION RESISTANT ELECTROCHEMICAL CELL - An electrochemical cell including an electrode assembly including a winding core, a first electrode, a second electrode, and a separator, the first electrode, the second electrode, and the separator being wound around the winding core, a current collector connected to the first electrode, and a case that accommodates the wound electrode assembly and the current collector. The winding core is welded to the current collector. | 09-18-2014 |
20140272504 | WOUND THERMAL BATTERIES AND METHODS OF MANUFACTURING THE SAME - A thermal battery includes a first conductive layer containing an anode material separated from a second conductive layer containing a cathode material by a separator layer containing a separator material; and a flexible pyrotechnic heat source, wherein the first conductive layer, the separator layer, and the second conductive layer are rolled together to form the spiral wound configuration. A method of manufacturing a thermal spiral wound battery includes preparing three slurries, each containing one of an anode material, a cathode material, and a separator material, depositing each of the materials from the slurries onto conductive substrates to form three layers, stacking the layers, and winding the layers together into a spiral wound configuration. | 09-18-2014 |
20140272505 | ELECTRODE ASSEMBLY AND MANUFACTURING METHOD OF SECONDARY BATTERY USING THE SAME - An electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator interposed between the positive and negative electrode plates, the separator having a polymer binder coating thereon, the positive electrode plate, the separator, and the negative electrode plate being sequentially stacked and wound in the shape of a jelly-roll, the jelly-roll being pressed through a heat press process. | 09-18-2014 |
20140272506 | CABLE-TYPE SECONDARY BATTERY - Disclosed is a cable-type secondary battery comprising at least one inner electrode layer including an inner electrode active material formed on a surface of an inner current collector having a horizontal cross section of a predetermined shape and extending in a lengthwise direction, a separation layer formed to surround the inner electrode layer, and an outer electrode layer formed to surround the separation layer and including an outer electrode active material formed on a surface of an outer current collector, and the cable-type secondary battery further comprises a first connection terminal that is electrically connected to the outer current collector and formed at one end of the cable-type secondary battery, and a second connection terminal that is electrically connected to the inner current collector and formed at the other end of the cable-type secondary battery. | 09-18-2014 |
20140272507 | ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL INCLUDING THE SAME - An electrode assembly according to the present disclosure includes an electrode stack part formed by stacking at least one radical unit having a four-layered structure of a first electrode, a separator, a second electrode and a separator, and an electrode fixing part for wrapping and fixing the electrode stack part. The electrode assembly according to the present disclosure may be fabricated by means of a stacking process other than a folding process, and may accomplish accurate alignment and stable fixing. | 09-18-2014 |
20140295232 | RECHARGEABLE BATTERY AND METHOD OF MANUFACTURING THE SAME - A rechargeable battery including; an electrode assembly including a separator; a first electrode on a first surface of the separator; a second electrode on a second surface of the separator; and an electrolyte solution at a first interface of the first electrode and the separator and a second interface of the second electrode and the separator, the electrode assembly being spiral-wound and being impregnated with an electrolyte solution; an insulation tape wrapping the electrode assembly; a case housing the electrode assembly that is coated with the insulation tape; and a cap plate coupled to the case and electrically connected to the electrode assembly. | 10-02-2014 |
20140295233 | LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery includes: an electrode body in which a positive electrode and a negative electrode are stacked or wound through a separator; a plurality of positive electrode tabs drawn from the electrode body; a plurality of negative electrode tabs drawn from the electrode body; a joint portion between the positive electrode tabs and a positive electrode lead tab; and a joint portion between the negative electrode tabs and a negative electrode lead tab. Apart of a metal plate is disposed on a surface of the positive electrode tab or positive electrode lead tab in the joint portion and on a surface of the negative electrode tab or negative electrode lead tab in the joint portion and joined integrally thereto, and a remaining part of the metal plate is wound around the joint portions. | 10-02-2014 |
20140302365 | Electrode Assembly of Secondary Battery - There is provided an electrode assembly of a secondary battery in which first and second electrode plates are sequentially stacked, a first separator is interposed between the first and second electrode plates, and the first and second electrode plates and the first separator are wound. The first electrode plate has one surface on which first electrode tabs are formed and an other surface on which the first electrode tabs are not formed, the second electrode plate has one surface on which second electrode tabs are formed and an other surface on which the second electrode tabs are not formed, and the first and second electrode plates further include a stacking surface formed between one surface and the other surface thereof and having a width increased by a predetermined interval whenever they are wound. | 10-09-2014 |
20140302366 | NONAQUEOUS ELECTROLYTE SECONDARY CELL - A nonaqueous electrolyte secondary battery includes: an electrode group including a positive electrode plate, a negative electrode plate, and a separator. The positive and negative electrode plates are wound with the separator interposed therebetween. The positive electrode plate includes a first current collector exposed portion where a portion of the positive electrode current collector corresponding to an outermost portion of the electrode group is exposed over a length of greater than or equal to one turn in a winding direction of the electrode group, and a second current collector exposed portion where a portion of the positive electrode current collector corresponding to a middle portion of the electrode group is exposed over a length of greater than or equal to one turn in the winding direction. A positive electrode lead is provided on the second current collector exposed portion so as to be connected to an external electrode. | 10-09-2014 |
20140302367 | BATTERY INCLUDING SPIRAL ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a battery comprises winding a separator to a winding core, and forming an area in which the separator is overlapped in equal to or more than two layers of the separator, joining the two layers mutually in pressure contact by pressing a projecting portion formed in a jig to the overlapped area, after the step of the joining, providing a positive electrode plate and a negative electrode plate to the winding core, and winding into a spiral form the positive electrode plate and the negative electrode plate interposing the separator therebetween, and after the step of the winding, forming a spiral electrode assembly by removing the winding core from a winding body wound into the spiral form. | 10-09-2014 |
20140308554 | COLLECTOR PLATE FOR ENERGY STORAGE DEVICE AND METHODS OF MANUFACTURING - This disclosure provides collector plates for an energy storage device, energy storage devices with a collector plate, and methods for manufacturing the same. In one aspect, a collector plate includes a body. One or more apertures extend into the body. The apertures are configured to allow a portion of a free end of a spirally wound current collector of a spirally wound electrode for an energy storage device to extend into the one or more apertures. | 10-16-2014 |
20140308555 | SQUARE-SHAPED SEALED SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME - In a prismatic sealed secondary battery provided with an outer can made of a metal, the ability of inserting the electrode assembly into the outer can is improved to restrain the displacement and damages of the insulation member when inserting the electrode assembly into the outer can. The prismatic sealed secondary battery of the present invention includes an insulation member having a bottomed box shape which is a shape obtained by eliminating the upper surface from the surfaces of a hexahedron having a cuboid form, wherein each width of at least a pair of side surfaces facing each other in the insulation member is smaller than the width of the electrode assembly facing the pair of side surfaces. | 10-16-2014 |
20140308556 | SECONDARY BATTERY ASSEMBLY - A secondary battery assembly includes: a secondary battery including a wound electrode body enclosed in a flat rectangular case; a contact member partly contacting a side surface as a pressed surface having a maximum area of outer surfaces of the secondary battery; and a binding member for binding the secondary battery and the contact member to partly press against the pressed surface. The contact member includes: contact parts arranged discretely in contact with the pressed surface; and a connecting part connecting the contact parts. The contact parts are formed to protrude from the connecting part toward the pressed surface, and into an arrangement or a shape to press more weakly both one-side regions of the pressed surface in a winding axis direction and more strongly a central region between the one-side regions. | 10-16-2014 |
20140315061 | Rechargeable Lithium Ion Button Cell Battery - A rechargeable lithium ion button cell battery having a sealed housing comprises an inner casing and an outer casing, both casings have at least one flat area as top or bottom of the battery, and a round or oval sidewall vertically formed to the flat area. An insulation gasket is positioned between said sidewalls, and the outer casing opening is mechanically crimped to complete the seal of the battery. Inside the sealed housing the anode and cathode electrodes are spiral wound with separator to be a round or oval roll. Said roll axis is vertical to the said flat areas of the casings. The two electrodes are tapered in width to fully utilize the inner space. The electrodes comprise current collectors of metal foils coated with lithium-intercalating active materials, leaving small area of uncoated metal foils as conductor tabs for connecting the electrodes to the casings. The tabs could be welded or by tight contacting to the casings, in several options. Insulation washers or tapes are applied to the naked metal surfaces of the electrodes or casings inside of the housing to prevent short circuit and enable the battery to have longer cycle life. | 10-23-2014 |
20140322575 | MULTIPLE CONDUCTIVE TABS FOR FACILITATING CURRENT FLOW IN BATTERIES - The disclosed embodiments provide a battery cell. The battery cell includes a set of layers which are wound together to form a jelly roll, including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a pouch enclosing the layers, wherein the pouch is flexible. To increase a current flow in the battery cell, a first set of conductive tabs is coupled to a cathode substrate of the cathode, and a second set of conductive tabs is coupled to an anode substrate of the anode. | 10-30-2014 |
20140322576 | Lithium Ion Battery - A high-input and high-output battery having a large capacity while guaranteeing safety is provided. As a composition of an electrolytic solution, a composition ratio of ethylene carbonate (EC) is 20 vol % or more and 30 vol % or less, and a composition ratio of dimethyl carbonate (DMC) is 36 vol % or more and 50 vol % or less, and a composition ratio η (DMC/EMC) of dimethyl carbonate (DMC) and ethyl methyl carbonate (EMC) is 1.05≦η≦1.7. Furthermore, a composition ratio of an additive is 0.1 wt. % or more and 1.0 wt. % or less, and a concentration of lithium salt is 1.0 mol/L or more and 1.5 mol/L or less. | 10-30-2014 |
20140322577 | ENERGY STORAGE DEVICE WITH SPIRAL ELECTRODE GROUP - An energy storage device including a spiral electrode group in which a first electrode plate and a second electrode plate having polarity reverse to that of the first electrode plate are spirally wound with a separator interposed therebetween, wherein the second electrode plate is opposed to an inner circumference and an outer circumference of the first electrode plate, portions of the separator are reinforced, the reinforced portions of the separator include a first reinforced portion formed between a winding-start end of the first electrode plate and the second electrode plate located on a radially outer side of the winding-start end, and a second reinforced portion formed between the winding-start end of the first electrode plate and the second electrode plate located on a radially inner side of the winding-start end, and the first reinforced portion and the second reinforced portion are arranged apart from each other. | 10-30-2014 |
20140322578 | BATTERY WITH WOUND ELECTRODE GROUP AND POSITIVE AND NEGATIVE ELECTRODE INSULATING COVERS - According to one embodiment, there is provided a battery. The battery includes a metallic outer can, a wound electrode group, a positive electrode-lead, a negative electrode-lead, a positive electrode insulating cover, and a negative electrode insulating cover. | 10-30-2014 |
20140322579 | METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY (AS AMENDED) - The present invention provides a method for producing a nonaqueous electrolyte secondary battery in which the drop in capacity retention rate is controlled by forming a coating in a more favorable state on the surface of the negative electrode active material. This production method comprises a step S | 10-30-2014 |
20140329122 | CELL - A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal. | 11-06-2014 |
20140335391 | PACKAGING FOR CABLE-TYPE SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure relates to a packaging for a cable-type secondary battery, surrounding an electrode assembly in the cable-type secondary battery, the packaging having a moisture-blocking layer comprising sealant polymer layers on both outer surfaces of a moisture-blocking film and a moisture-blocking film disposed between the sealant polymer layers, wherein the moisture-blocking layer is a tube form surrounding the electrode assembly, and the sealant polymer layers in both ends of the moisture-blocking layer are overlapped and adhered with each other in a predetermined part. The packaging according to the present disclosure can be used in a cable-type secondary battery to block moisture from being infiltrated into an electrode assembly, thereby improving the life characteristics of the battery and preventing the deterioration of battery performances. | 11-13-2014 |
20140342205 | SPIRALLY WOUND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A spirally-wound non-aqueous electrolyte secondary battery including a staked electrode assembly is disclosed. The stacked electrode assembly has first and second current collectors facing region disposed at a winding start end and at a winding terminal end, respectively. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion face each other through the separator in each of the first and second current collector facing regions. At least one of the positive or negative electrode current collector exposed portion has a first insulating member formed thereon in the first current collector facing region at the winding start end. At least one of the positive or negative electrode current collector exposed portion has a second insulating member formed thereon in the second current collector facing region at the winding terminal end. The second insulating member has a melting point lower than that of the first insulating member. | 11-20-2014 |
20140349158 | CYLINDRICAL BATTERY - A cylindrical battery includes a cylindrical battery case and a cylindrical element including a positive electrode, a negative electrode, and a separator. A space is formed on an inner side of the element. The positive electrode or the negative electrode is split into a plurality of electrode pieces in a circumferential direction. | 11-27-2014 |
20140356672 | BATTERY PACK - A battery pack includes a battery cell and a frame having an opening in which the battery cell is installed, an edge of the opening including a support portion contacting a side of the battery cell, the support portion having a surface corresponding to a surface of the battery cells. | 12-04-2014 |
20140356673 | SECONDARY BATTERY - There is provided a secondary battery which can implement a high-density electrode plate and prevent fracture of the electrode plate. The secondary battery includes a metallic base material, a first active material coated on one surface of the metallic base material, and a second active material coated on the other surface of the metallic base material. In the secondary battery, the difference in loading level between the first and second active materials ranges from 2 mg/cm | 12-04-2014 |
20140356674 | ANODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME - Provided are an anode for a secondary battery including an anode collector, an anode active material coated on the anode collector, and a non-coating portion (anode tab) which protrudes from one side of the anode collector and is not coated with an anode active material, wherein the anode includes a metal member which is bonded to the non-coating portion and has higher reactivity or reducibility with respect to a metal oxide than the anode collector, and a secondary battery including the anode. | 12-04-2014 |
20140363712 | Hard Shell Housing Comprising Superhydrophobic Material - Hard shell housings for electrochemical elements include a main housing element that has an interior space configured to accommodate cell components, at least one electrochemical cell, and a housing lid configured to close off the interior space of the main housing element. The main housing element is formed at least substantially from plastic, and the main housing element comprises at least one superhydrophobic material. | 12-11-2014 |
20140363713 | ELECTRICAL ENERGY STORAGE CELL AND METHOD FOR PRODUCING AN ELECTRICAL ENERGY STORAGE CELL - The invention relates to an electrical energy storage cell comprising a multiplicity of first electrode elements with parallel surfaces, a multiplicity of second electrode elements with parallel surfaces which run parallel to the surfaces of the first electrode elements, which second electrode elements are galvanically isolated from the first electrode elements, a first planar contact element, which makes electrical contact with the multiplicity of first electrode elements, a second planar contact element, which makes electrical contact with the multiplicity of second electrode elements, at least one first planar contact connector, which makes electrical contact with the first contact element, a first pole contact, which makes electrical contact with the first planar contact connector, and a second pole contact, which is electrically connected to the second planar contact element. | 12-11-2014 |
20140363714 | LITHIUM SECONDARY BATTERY WITH EXCELLENT PERFORMANCE - Disclosed is a lithium secondary battery including an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode and an electrolyte, wherein the cathode includes a spinel-structure lithium manganese composite oxide represented by Formula 1 below as a cathode active material, and the lithium secondary battery has a charge cut-off voltage of 3.3 to 4 V and, when the charge cut-off voltage is reached, the anode has a potential of 0.75 to 1.545 V within a range within which a potential of the cathode does not exceed 4.95 V: | 12-11-2014 |
20140363715 | BINDER FOR STORAGE BATTERY DEVICE - To provide a binder for a storage battery device, whereby good adhesion in an electrode and flexibility are obtainable, and it is possible to realize good charge and discharge characteristics when used for a secondary battery. | 12-11-2014 |
20140370345 | SEGMENTED ENERGY STORAGE ASSEMBLY - An assembly includes a receiver housing ( | 12-18-2014 |
20140370346 | Lithium Ion Battery - A high-input and high-output battery having a large capacity while guaranteeing safety is provided. In a lithium ion battery having an electrode wound group in which a positive electrode, a negative electrode, and a separator are wound and an electrolytic solution provided in a battery container, a discharge capacity of the battery being 30 Ah or more, the positive electrode has a current collector and a positive electrode composite applied to both surfaces of the current collector, and the positive electrode composite has following configuration. The positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn), a density of the positive electrode composite is 2.4 g/cm | 12-18-2014 |
20140370347 | FLEXIBLE BATTERY - A battery includes a flexible case, an electrode assembly in the flexible case, the electrode assembly having a length in a first direction, a width in a second direction perpendicular to the first direction, and a thickness in a third direction perpendicular to the first direction and the second direction, the length being greater than the width and greater than the thickness, and a flexible sealing member between the flexible case and the electrode assembly, the flexible sealing member being wrapped around the electrode assembly. The battery is flexible. | 12-18-2014 |
20140370348 | ELECTRICAL ENERGY STORAGE MODULE AND METHOD FOR PRODUCING AN ELECTRICAL ENERGY STORAGE MODULE - The invention relates to an electrical energy storage module, comprising at least one storage cell stack ( | 12-18-2014 |
20140370349 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; and a first porous supporting layer formed on the electrode active material layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surface thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery. | 12-18-2014 |
20140370350 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; and a first porous supporting layer formed on the electrode active material layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surface thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery. | 12-18-2014 |
20140370351 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and comprising a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery. | 12-18-2014 |
20140377607 | SECONDARY BATTERY - A secondary battery includes improved insulation properties between an electrode group and a battery container against an external force can be improved without lowering the battery capacity. The secondary battery of the present invention has: a wound electrode group formed by winding electrodes in which mixture layers are formed on metal foils; a battery container for housing the wound electrode group; and an insulator interposed between the wound electrode group and the battery container. The insulator has a section interposed between the battery container and a mixture layer laminated region formed at the center of the wound electrode group in the winding axis direction, and a section interposed between the battery container and a pair of metal foil exposed portions formed on both sides of the wound electrode group in the winding axis direction, wherein the latter region is thicker than the former region. | 12-25-2014 |
20140377608 | MANGANESE DIOXIDE AND ALKALINE DRY BATTERY - Disclosed is manganese dioxide having a peak intensity ratio between a peak intensity I | 12-25-2014 |
20140377609 | CABLE-TYPE SECONDARY BATTERY AND PREPARATION THEREOF - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; and a sheet-form laminate of separation layer-outer electrode, spirally wound to surround the outer surface of the inner electrode, the laminate being formed by carrying out compression for the integration of a separation layer for preventing a short circuit, and an outer electrode. | 12-25-2014 |
20140377610 | CABLE-TYPE SECONDARY BATTERY AND PREPARATION THEREOF - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; and a sheet-form laminate of separation layer-outer electrode, spirally wound to surround the outer surface of the inner electrode, the laminate being formed by carrying out compression for the integration of a separation layer for preventing a short circuit, and an outer electrode. | 12-25-2014 |
20140377611 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a porous organic-inorganic layer formed on the electrode active material layer and comprising inorganic particles and a polymer binder; and a first porous supporting layer formed on the porous organic-inorganic layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery. | 12-25-2014 |
20140377612 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a porous organic-inorganic layer formed on the electrode active material layer and comprising inorganic particles and a polymer binder; and a first porous supporting layer formed on the porous organic-inorganic layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery. | 12-25-2014 |
20140377613 | CABLE-TYPE SECONDARY BATTERY - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode supporter; and a sheet-form laminate of inner electrode-separation layer-outer electrode, spirally wound on the outer surface of the inner electrode supporter, wherein the laminate of inner electrode-separation layer-outer electrode is formed by carrying out compression for the integration of an inner electrode, a separation layer for preventing a short circuit, and an outer electrode. In the cable-type secondary battery of the present disclosure, since the electrodes and the separation layer are adhered to each other and integrated, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery. | 12-25-2014 |
20140377614 | CABLE-TYPE SECONDARY BATTERY - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode supporter; and a sheet-form laminate of inner electrode-separation layer-outer electrode, spirally wound on the outer surface of the inner electrode supporter, wherein the laminate of inner electrode-separation layer-outer electrode is formed by carrying out compression for the integration of an inner electrode, a separation layer for preventing a short circuit, and an outer electrode. In the cable-type secondary battery of the present disclosure, since the electrodes and the separation layer are adhered to each other and integrated, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery. | 12-25-2014 |
20140377615 | CABLE-TYPE SECONDARY BATTERY - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode supporter; and a sheet-form laminate of inner electrode-separation layer-outer electrode, spirally wound on the outer surface of the inner electrode supporter, wherein the laminate of inner electrode-separation layer-outer electrode is formed by carrying out compression for the integration of an inner electrode, a separation layer for preventing a short circuit, and an outer electrode. In the cable-type secondary battery of the present disclosure, since the electrodes and the separation layer are adhered to each other and integrated, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery. | 12-25-2014 |
20140377616 | CABLE-TYPE SECONDARY BATTERY - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode supporter; and a sheet-form laminate of inner electrode-separation layer-outer electrode, spirally wound on the outer surface of the inner electrode supporter, wherein the laminate of inner electrode-separation layer-outer electrode is formed by carrying out compression for the integration of an inner electrode, a separation layer for preventing a short circuit, and an outer electrode. In the cable-type secondary battery of the present disclosure, since the electrodes and the separation layer are adhered to each other and integrated, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery. | 12-25-2014 |
20140377617 | CABLE-TYPE SECONDARY BATTERY - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and a sheet-form outer electrode spirally wound to surround the separation layer or the inner electrode. | 12-25-2014 |
20140377618 | CABLE-TYPE SECONDARY BATTERY - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and a sheet-form outer electrode spirally wound to surround the separation layer or the inner electrode. | 12-25-2014 |
20140377619 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a porous polymer layer formed on the electrode active material layer; and a first porous supporting layer formed on the porous polymer layer. | 12-25-2014 |
20140377620 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a porous polymer layer formed on the electrode active material layer; and a first porous supporting layer formed on the porous polymer layer. | 12-25-2014 |
20150010797 | LITHIUM POUCH BATTERY - A lithium pouch battery that includes an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode; and an oriented polystyrene (OPS) film attached to at least one external side of the electrode assembly, wherein the separator includes a porous substrate and a coating layer formed on at least one external side of the porous substrate, and the coating layer includes a polymer, a ceramic, or a combination thereof. | 01-08-2015 |
20150010798 | ELECTROLYTE HOLDER FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - The present invention provides an electrolyte holder for a lithium secondary battery capable of holding an electrolytic solution inside electrodes or at an interface between the separator and each of the electrodes, preventing electrolyte shortage inside the electrodes, and restraining dendrite from precipitating and growing and also provide the lithium secondary battery, using the electrolyte holder, which is capable of achieving a cycle life to such an extent that the lithium secondary battery can be used for industrial application. An electrolyte holder ( | 01-08-2015 |
20150010799 | STEPPED ELECTRODE ASSEMBLY HAVING PREDETERMINED A THICKNESS RATIO IN THE INTERFACE BETWEEN ELECTRODE UNITS, BATTERY CELL AND DEVICE COMPRISING THE SAME - There are provided an electrode assembly, and a battery cell, a battery pack, and a device. The electrode assembly includes a combination of two or more types of electrode units having different areas, wherein the electrode units are stacked such that steps are formed, and electrode units are formed such that a positive electrode and a negative electrode face one another at an interface between the electrode units. | 01-08-2015 |
20150010800 | ELECTRODE ASSEMBLY, BATTERY AND DEVICE INCLUDING THE SAME - The present disclosure relates to an electrode assembly formed by stacking a plurality of electrode units, the electrode assembly including: two or more steps formed by stacking three or more types of the electrode units having different areas, wherein an array of electrode units having a maximum area among the electrode units is positioned in the interior of the electrode assembly, and electrodes having different polarities face each other at an interface between the electrode units having different areas. | 01-08-2015 |
20150017499 | Lithium Ion Battery - In a lithium ion battery having an electrode wound group in which a positive electrode, a negative electrode, and a separator are wound and an electrolytic solution provided in a battery container, a discharge capacity of the battery being 30 Ah or more and 125 Ah or less, the positive electrode has a current collector and a positive electrode composite applied to both surfaces of the current collector, and the positive electrode composite has following configuration. The positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and olivine lithium iron phosphate (LFP), a density of the positive electrode composite is 2.0 g/cm | 01-15-2015 |
20150017500 | ELECTRODE FOR SECONDARY BATTERY, PREPARATION THEREOF, AND SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and comprising a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery. | 01-15-2015 |
20150024243 | ELECTRODE AND POWER STORAGE DEVICE COMPRISING SAID ELECTRODE - This electrode is provided with a thin metal sheet and an active substance layer containing, on the surface of the thin metal sheet, multiple active substance particles of a prescribed average particle diameter. The surface of the thin metal sheet includes a forming region where the active substance layer is located. In the forming region, the thin metal sheet has a depressed section in the surface. A portion of the active substance particles is present in at least a part of the depression, and the average distance between the centers of two neighboring particles of these active substance particles present in at least a part of the depression is 60-98% of the aforementioned average particle diameter. | 01-22-2015 |
20150024244 | ELECTRIC STORAGE DEVICE PROVIDED WITH CURRENT COLLECTING MEMBER, AND METHOD FOR MANUFACTURING CURRENT COLLECTING MEMBER - An electric storage device includes a case, an electrode assembly housed in the case and including a positive electrode plate and a negative electrode plate which are wound together while being isolated from each other, an external terminal arranged outside the case and a current collecting member arranged inside the case to electrically connect the electrode assembly with the external terminal. The current collecting member includes a first portion including a first end portion and a second end portion, and electrically connected to the external terminal, and a second portion extending out of the second end portion of the first portion and electrically connected to the electrode assembly. The second portion includes a base portion including a first end portion and a second end portion, the first end portion of the base portion being connected to the second end portion of the first portion, and a twisted portion. | 01-22-2015 |
20150024245 | ELECTRODE ASSEMBLY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed herein is an electrode assembly including 2n (n being a natural number equal to or greater than 1) polar bodies which are stacked. | 01-22-2015 |
20150037637 | RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly including spiral-wound a first electrode, a first separator, second electrode, and a second separator, the first electrode, first separator, second electrode, and second separator being sequentially disposed around a center, a case receiving the electrode assembly, and a cap assembly coupled to an opening of the case, wherein the first separator and the second separator enclose first ends of the first electrode and the second electrode at the center, portions of the first and second separators defining a re-spiral-wound region having at least a first portion disposed between the first electrode and the second electrode in a diameter direction of the electrode assembly. | 02-05-2015 |
20150037638 | SECONDARY BATTERY - A secondary battery includes a high-capacity electrode portion, a high-power electrode portion, an electrolyte and a battery case. The high-capacity electrode portion includes a first positive electrode plate, a first negative electrode plate opposite to the first positive electrode plate, and a separator between the first positive electrode plate and the first negative electrode plate. The high-power electrode portion includes a second positive electrode plate, a second negative electrode plate opposite to the second positive electrode plate, and a separator between the second positive electrode plate and the second negative electrode plate. The electrolyte contacts the high-capacity electrode portion and the high-power electrode portion. The battery case accommodates the high-capacity electrode portion, the high-power electrode portion and the electrolyte therein. In the secondary battery, the power density of the high-power electrode portion is at least four times greater than that of the high-capacity electrode portion. | 02-05-2015 |
20150037639 | PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET - Disclosed is a pressure-sensitive adhesive tape or sheet which does not cause deterioration of an electrolytic solution even when immersed in the electrolytic solution and which can be smoothly unwound even after being wound. The pressure-sensitive adhesive tape or sheet includes a substrate and, on one surface thereof, a pressure-sensitive adhesive layer. The substrate has a wetting tension of from 30 to 35 mN/m in the surface to face the pressure-sensitive adhesive layer, where the wetting tension is measured by a method according to JIS K 6768:1999. The pressure-sensitive adhesive layer includes a pressure-sensitive adhesive containing substantially no polar group. A pressure-sensitive adhesive in the pressure-sensitive adhesive layer is preferably a rubber pressure-sensitive adhesive such as a polyisobutylene rubber and/or an isobutylene-isoprene rubber. | 02-05-2015 |
20150044533 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A prismatic nonaqueous electrolyte secondary battery includes a flat winding electrode assembly formed by winding an elongated positive and negative electrodes with an elongated separator interposed therebetween, and an outer body storing the flat winding electrode assembly and a nonaqueous electrolyte. The positive electrode includes a positive electrode substrate exposed portion formed along a longitudinal direction. The negative electrode includes a negative electrode substrate exposed portion formed along a longitudinal direction. The nonaqueous electrolyte contains at least one of a lithium salt having an oxalate complex as an anion and lithium difluorophosphate (LiPF | 02-12-2015 |
20150044534 | Lithium Ion Battery - A high-input and high-output battery having a large capacity while guaranteeing safety is provided. In a lithium ion battery having an electrode wound group in which a positive electrode, a negative electrode, and a separator are wound and an electrolytic solution provided in a battery container, a discharge capacity of the battery being 30 Ah or more, the positive electrode has a current collector and a positive electrode composite applied to both surfaces of the current collector, and the positive electrode composite has following configuration. The positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn), a density of the positive electrode composite is 2.4 g/cm | 02-12-2015 |
20150044535 | LITHIUM SECONDARY BATTERY - A lithium secondary battery which is unlikely to be deformed during charging and discharging. A lithium secondary battery includes a spiral-shaped electrode assembly and a cylindrical battery container. The battery container receives the electrode assembly. The electrode assembly includes a negative electrode, a positive electrode, and a separator. The negative electrode includes a negative electrode collector and a negative electrode active material layer. The negative electrode active material layer is disposed on the negative electrode collector. The negative electrode active material layer contains a negative electrode active material forming an alloy with lithium. The positive electrode faces the negative electrode. The separator is disposed between the negative electrode and the positive electrode. When A is a proof stress of the negative electrode collector multiplied by the thickness thereof and a capacity to be charged per unit area of the negative electrode is represented by B, A≧0.075×B−3 is satisfied. | 02-12-2015 |
20150044536 | COMPACT BATTERY CELL HAVING IMPROVED DURABILITY AND BATTERY PACK COMPRISING THE SAME - Disclosed herein are a battery cell including an electrode assembly configured to have a structure including cathodes, anodes, and separators respectively disposed between the cathodes and the anodes, the electrode assembly being provided with a through hole in a direction in which the electrodes are stacked, and a battery case provided at each side thereof with an opening communicating with the through hole and a battery pack including the same. | 02-12-2015 |
20150050535 | LITHIUM ION BATTERIES WITH HIGH CAPACITY ANODE ACTIVE MATERIAL AND GOOD CYCLING FOR CONSUMER ELECTRONICS - Battery designs are provided that exhibit commercially suitable cycling properties for consumer electronics with silicon based active materials in the electrodes. The batteries can have stacked or wound electrodes and suitable electrode designs. | 02-19-2015 |
20150056485 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery includes an electrode assembly including a positive electrode, a first separator, a negative electrode, and a second separator that are sequentially stacked. The first separator includes a first substrate including a first side facing the positive electrode and a second side facing the negative electrode. The second separator includes a second substrate including a third side facing the negative electrode and a fourth side facing the positive electrode. At least one of the first side to the fourth side includes an organic layer including an organic material, and at least one of the second side or the third side includes an inorganic layer including an inorganic material. | 02-26-2015 |
20150064528 | BATTERY STRUCTURE, ELECTRONIC DEVICE AND MANUFACTURING METHOD OF BATTERY STRUCTURE - A battery structure including a first battery unit, a second battery unit, a separation membrane and a packing is provided. The first and the second battery units respectively include at least one anode, at least one cathode and a dielectric layer located between the at least one anode and the at least one cathode close to each other. The at least one anode and the at least one cathode are alternately stacked with each other. The second battery unit is stacked on the first battery unit. A dimension of the first battery unit is smaller than that of the second battery unit. The separation membrane is disposed between the first and the second battery units. The packing covers the first and the second battery units and the separation membrane. An electronic device including the battery structure, and a manufacturing method of the battery structure, are further provided. | 03-05-2015 |
20150064529 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a nonaqueous electrolyte secondary battery | 03-05-2015 |
20150064530 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions; an inner electrode, comprising a spiral electrode formed by spirally twisting two or more wire-type inner current collectors coated with an inner electrode active material on the surface thereof; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer, and comprising an outer electrode active material layer and an outer current collector. The core for supplying lithium ions is disposed in the inner electrode, from which the electrolyte of the core for supplying lithium ions can be easily penetrated into an electrode active material, thereby facilitating the supply and exchange of lithium ions. | 03-05-2015 |
20150072201 | CYLINDRICAL SECONDARY BATTERY - A conductive lead | 03-12-2015 |
20150072202 | ELECTROCHEMICAL DEVICE - The present disclosure provides an electrochemical device, which comprises a plurality of cells which are stacked in a step configuration, electrode tabs of the same polarity of the plurality of cells are electrically connected together. Compared with only using a single wound-type cell or only using a single laminated-type cell, the plurality of cells stacked in the step configuration of the present disclosure can more flexibly adapt to an irregular inner space of an electronic device using the electrochemical device, so that the inner space in the electronic device is fully used, the performance of the electrochemical device for use in the electronic device is improved, and the manufacturing process is more simple, flexible and efficient. | 03-12-2015 |
20150072203 | ELECTRODE ASSEMBLY AND BATTERY PACK INCLUDING THE SAME - An electrode assembly includes a structure including a first electrode plate and a second electrode plate that are wound together, and a separator between the first electrode plate and the second electrode plate, a first electrode tab that is electrically connected to the first electrode plate, and a second electrode tab that is electrically connected to the second electrode plate. The structure includes a pair of grooves at opposite sides of the structure, the grooves being formed by compression of the structure at the opposite sides in a direction perpendicular to a winding surface. The structure including a first part and a second part that are oppositely located with respect to a reference line connecting the pair of grooves, and the second part is shifted in a first direction such that the second part is partially misaligned with the first part. | 03-12-2015 |
20150072204 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly includes an electrode jelly-roll, which includes a winding including a first electrode plate, a second electrode plate, and a separator disposed between the first and second electrode plates; an outer surface parallel to a winding axis of the prismatic electrode jelly-roll, side surfaces perpendicular to the winding axis; a first electrode tab, which is electrically connected to the first electrode plate and extends in a winding axis direction of the prismatic electrode jelly-roll; a second electrode tab, which is electrically connected to the second electrode plate and extends in a winding axis direction of the electrode jelly-roll, wherein an end portion of at least one of the first electrode tab and the second electrode tab is bent in a direction opposite to the direction in which the corresponding electrode tab extends and faces an outer surface of the prismatic electrode jelly-roll. | 03-12-2015 |
20150072205 | BATTERY ASSEMBLY HAVING SINGLE ELECTRODE TERMINAL CONNECTION PART - Disclosed herein is a battery assembly including at least two battery cells connected in series or in parallel. Each of the battery cells includes an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode and a battery case in which the electrode assembly is mounted. An electrode terminal of a first battery cell and an electrode terminal of a second battery cell are formed as a single member at a series or parallel connection portion between the first and second battery cells. | 03-12-2015 |
20150079440 | PRODUCING ELECTRODES FOR LEAD-ACID BATTERIES - The invention relates to a method for producing electrodes ( | 03-19-2015 |
20150079441 | CYLINDRICAL NONAQUEOUS ELECTROLYTE BATTERY - A cylindrical nonaqueous electrolyte secondary battery includes: a wound electrode unit as a wound electrode laminate of belt-like positive and negative electrodes laminated via a separator, the positive electrode including a positive electrode collector and a positive electrode active material layer, and the negative electrode including a negative electrode collector and a negative electrode active material layer; an adhesive member provided to cover the wound electrode laminate at a terminating end portion lying on an outer side of the wound electrode unit; and a battery canister housing the wound electrode unit, the adhesive member including a base material, and an adhesive layer provided on a whole surface or on at least a part of the surface on one side of the base material, and the base material being a mixture of a resin material of high swellability and a resin material of high melting point. | 03-19-2015 |
20150086820 | SECONDARY BATTERY - A secondary battery includes: a case; and an electrode assembly accommodated in the case and including a positive electrode plate, a negative electrode plate, and a separator between the positive and negative electrode plates. At least one of the positive and negative electrode plates includes: a first sub-electrode plate including a first coating surface coated with an active material and a first non-coating surface facing oppositely away from the first coating surface and not coated with the active material; and a second sub-electrode plate including a second coating surface coated with an active material and a second non-coating surface facing oppositely away from the second coating surface and not coated with the active material. The first non-coating surface of the first sub-electrode plate faces the second non-coating surface of the second sub-electrode plate to allow the first and the second sub-electrode plates to slip relative to each other. | 03-26-2015 |
20150086821 | FLAT WOUND SECONDARY BATTERY AND METHOD FOR PRODUCING SAME - A flat wound secondary battery and a method for producing the same provides for the suppression of wrinkles formed on an electrode by irregularities on a welded portion. A secondary battery has a wound electrode body including a positive electrode and a negative electrode that are wound flat around a shaft core with a separator interposed between the electrodes, and a battery container that contains the wound electrode body. The shaft core includes a wound resin sheet having higher flexural rigidity than the positive electrode, the negative electrode, and the separator. The shaft core includes an innermost portion that forms the innermost periphery of the shaft core and an extended portion to a winding terminal end from the innermost portion. The separator includes a bonded portion to the extended portion and a separator winding portion that winds only the separator at least one turn around the shaft core. | 03-26-2015 |
20150086822 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an inner electrode having an inner current collector and an inner electrode active material layer surrounding the outer surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer, and having an outer electrode active material layer, an open-structured outer current collector and a conductive paste layer. | 03-26-2015 |
20150093616 | RECHARGEABLE BATTERY - A rechargeable battery including an electrode assembly that is chargeable and dischargeable, the electrode assembly including a first assembly portion and a second assembly portion; a case accommodating the electrode assembly therein; a cap plate coupled to the case; and an electrode terminal group connected to the electrode assembly through a lead tab, the electrode terminal group being in a terminal hole of the cap plate, wherein the electrode terminal group includes three electrode terminals that are selectively connected to first electrodes and second electrodes of the first assembly portion and the second assembly portion. | 04-02-2015 |
20150093617 | LITHIUM ION PRISMATIC CELL COMPRISING MULTIPLE JELLY ROLLS WITH ADDITIONAL MATERIAL BETWEEN JELLY ROLLS - Techniques disclosed herein include systems and methods that improve the speed of jelly roll assembly for large format and high capacity cells as compared to a stack-folding production method. In one embodiment, a higher speed winding process is achieved, and, in addition, a higher capacity and energy can be achieved by adding at least one (additional) cathode layer between the jelly roll. Such an addition minimizes the loss of use of an anode outer layer. | 04-02-2015 |
20150093618 | ALKALINE STORAGE BATTERY, AND METHOD FOR PRODUCING ALKALINE STORAGE BATTERY - An alkaline storage battery includes a spiral electrode group with a positive plate and a negative plate spirally wound with a separator interposed therebetween. The separator includes a plurality of sulfone group-containing regions. The plurality of sulfone group-containing regions are separated from one another in a winding direction, and disposed to face the positive plate or the negative plate. | 04-02-2015 |
20150093619 | BATTERY AND METHOD FOR MANUFACTURING BATTERY - A battery includes a case and an electrode group disposed in the case and formed by winding electrodes. Lengths of the electrodes in a direction of a winding axis of the electrode group are smaller than a length of a housing space in the case in the direction of the winding axis of the electrode group. The electrode group is formed by helically winding the electrodes. | 04-02-2015 |
20150093620 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE APPARATUS - An electric storage device includes: an electrode assembly in which electrodes are wound such that paired curved portions and a straight portion connecting the paired curved portions are formed; a case which houses the electrode assembly, the case comprising a convex part protruding toward the straight portion of the electrode assembly to support the straight portion; and a support portion which supports the curved portion toward an inside of the electrode assembly. | 04-02-2015 |
20150093621 | LI-ION BATTERY AND BATTERY ACTIVE COMPONENTS ON METAL WIRE - A battery on a conductive metal wire and components of a battery on a conductive metal wire of circular cross section diameter of 5-500 micrometers and methods of making the battery and battery components are disclosed. In one embodiment, the battery features a porous anode or cathode layer which assist with ion exchange in batteries. Methods of forming the porous anode or cathode layer include deposition of an inert gas or hydrogen enriched carbon or silicon layer on a heated metal wire followed by annealing of the inert gas or hydrogen enriched carbon silicon layer. Energy storage devices having bundles of batteries on wires are also disclosed as are other energy storage devices. | 04-02-2015 |
20150104684 | SECONDARY BATTERY - Provided are a finishing tape, which can prevent a short circuit while preventing impacts applied to an electrode assembly, and a secondary battery including the same. The secondary battery includes a case having an opening defining an internal space, an electrode assembly in the internal space of the case, and a cap assembly coupled to the opening of the case sealing the case. The electrode assembly may include a finishing tape on an outer surface of the electrode assembly between the case and the electrode assembly. The finishing tape may include a first substrate and a second substrate. The cap assembly may include a cap plate coupled to the opening of the case. The secondary battery may further include an insulation case between the electrode assembly and the cap assembly. | 04-16-2015 |
20150104685 | CABLE-TYPE SECONDARY BATTERY - The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: a core for supplying lithium ions, which comprises an electrolyte; an inner electrode, comprising an open-structured inner current collector surrounding the outer surface of the core for supplying lithium ions, an inner electrode active material layer formed on the surface of the inner current collector, and an electrolyte-absorbing layer formed on the outer surface of the inner electrode active material layer; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer and comprising an outer electrode active material layer and an outer current collector. | 04-16-2015 |
20150111078 | SQUARE LITHIUM SECONDARY BATTERY - A square lithium secondary battery includes a wound body in which a collective sheet in which a positive electrode sheet and a negative electrode sheet overlap each other with a first separator interposed therebetween is wound while a second separator is put inside the collective sheet. An active material mixture layer on one or both surfaces of at least one of the positive electrode sheet and the negative electrode sheet includes a region with a plurality of openings and a region with no opening. At least a bent portion of the collective sheet is covered with the region with the plurality of openings. | 04-23-2015 |
20150118532 | RECHARGEABLE BATTERY - A rechargeable battery includes: a case; a first electrode assembly accommodated in the case; and second and third electrode assemblies accommodated in the case at positions adjacent to the case with the first electrode assembly being disposed therebetween. The second and third electrode assemblies have thicknesses different from that of the first electrode assembly. | 04-30-2015 |
20150118533 | SECONDARY BATTERIES AND METHODS OF MANUFACTURING THE SAME - Provided is a secondary battery. The secondary battery includes: an electrode assembly including a positive electrode plate, a separator, and a negative electrode plate wound around a first axis extending in a first direction, having a thickness in a second direction perpendicular to the first direction and a length in a third direction perpendicular to the first direction and the second direction, and having a curvature with respect to the first axis while the length is greater than the thickness; an electrode case including a body and a cover having a curvature corresponding to the curvature of the electrode assembly and having different stiffnesses; and a first electrode tab and a second electrode tab connected respectively to the positive electrode plate and the negative electrode plate and protruding from the electrode assembly in a direction perpendicular to the first direction. | 04-30-2015 |
20150132625 | SEALED SECONDARY BATTERY - A sealed secondary battery comprises a bottomed cylindrical battery case having an opening, a sealing member sealing the opening of the battery case, and a spiral electrode assembly in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween, and an annular thin portion is formed in the bottom of the battery case, and the ratio of the area of a region surrounded by the annular thin portion to the area of the bottom portion of the battery case is equal to or more than 10%, and a volume energy density is equal to or more than 500 Wh/L. | 05-14-2015 |
20150132626 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE ELECTRODE ASSEMBLY - An electrode assembly and a secondary battery using the same are disclosed. The electrode assembly includes a positive electrode, a negative electrode, and a lithium ion conductor layer disposed at least in one of between the positive electrode and the negative electrode, on an outer surface of the positive electrode, and on an outer surface of the negative electrode, to improve thermal safety of the secondary battery. | 05-14-2015 |
20150140381 | RECHARGEABLE BATTERY - A rechargeable battery with improved safety and increased capacity of a cell including: an electrode assembly including a first electrode, a second electrode, and a separator between the first and second electrodes; a case comprising an opening configured to receive the electrode assembly; a cap assembly coupled to the sides of the opening of the case; and a lead tab connecting the first electrode to the cap assembly, wherein the first electrode includes a coating region where an active material is coated on both surfaces of a current collector, a first uncoated region where the active material is not coated on the current collector, and a second uncoated region where the active material is not coated on one surface of the current collector. | 05-21-2015 |
20150140382 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE DEVICE MODULE - An electric storage device includes an electrode assembly including a winding core and electrodes, and a case. The case and the winding core each have a rigidity satisfying 0.01≦P | 05-21-2015 |
20150140383 | ANODE FOR SECONDARY BATTERY AND SECONDARY BATTERY HAVING THE SAME - The present invention relates to an anode for a secondary battery, comprising at least two anode wires which are parallel to each other and spirally twisted, each of the anode wires having an anode active material layer coated on the surface of a wire-type current collector; and a secondary battery comprising the anode. The anode of the present invention has an increased surface area to react with Li ions during a charging and discharging process, thereby improving the rate characteristics of a battery, and also release stress or pressure applied in the battery, e.g., the volume expansion of active material layers to prevent the deformation of the battery and ensure the stability thereof, thereby improving the life characteristic of the battery. | 05-21-2015 |
20150147615 | POUCH FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - Provided is a structure of a pouch which may be used in a high-capacity battery having high capacity and high stiffness, wherein the pouch may include an upper housing module which includes a metallic base plate having a concave-shaped accommodation space and polymer layers formed on one surface or both surfaces of the base plate, and a lower pouch sheet which is combined with a lower surface of the upper housing module to seal the accommodation space. | 05-28-2015 |
20150147616 | BUTTON CELL CASINGS SUITABLE FOR NON-AQUEOUS CELLS - Provided herein are button cell housing components configured to be suitable for lithium ion battery cells. | 05-28-2015 |
20150147617 | ANODE FOR SECONDARY BATTERY AND SECONDARY BATTERY HAVING THE SAME - The present disclosure provides an anode for a secondary battery, comprising a wire-type current collector; a metallic anode active material layer formed on the surface of the wire-type current collector and comprising a metallic anode active material; and an inert metal layer formed on the surface of the metallic anode active material layer and having no reactivity with lithium. | 05-28-2015 |
20150295209 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is provided, including a battery element having a positive electrode, a negative electrode and a separator; an exterior member for the battery element including: a first layer; a second layer; a bending part for partitioning the first layer and the second layer from each other; a sealing part which is formed by a peripheral part of the first layer in contact with a peripheral part of the second layer and which seals the battery element; a thick-walled part that is a portion of the sealing part and includes at least a part of the bending part, wherein the thick-walled part has a greater thickness in a thickness direction of the battery element than a thickness of a portion of the sealing part other than the thick-walled part, and wherein the thickness direction of the battery element corresponds to a stacking direction of the battery element. | 10-15-2015 |
20150295270 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly includes: a positive electrode plate including a positive electrode collector having, on its first side, a positive electrode coating portion having a positive electrode active material thereon and a first positive electrode non-coating portion; a positive electrode tab on the first positive electrode non-coating portion; a negative electrode plate including a negative electrode collector having, on its first side facing the first side of the positive electrode collector, a negative electrode coating portion having a negative electrode active material thereon and a first negative electrode non-coating portion; and a separator between the positive and negative electrode plates. The first positive electrode non-coating portion is between ends of the positive electrode plate, and the first negative electrode non-coating portion overlaps the first positive electrode non-coating portion. | 10-15-2015 |
20150295271 | ANODE FOR CABLE-TYPE SECONDARY BATTERY AND CABLE-TYPE SECONDARY BATTERY COMPRISING THE SAME - The present invention relates to an anode for a cable-type secondary battery, more specifically an anode for a cable-type secondary battery, comprising a spiral electrode consisting of at least two wire-type electrodes which are spirally twisted with each other, each of the wire-type electrodes comprising a wire-type current collector, an anode active material layer formed by coating on the outer surface of the wire-type current collector, and a polymer resin layer formed by coating on the outer surface of the anode active material layer; and a cable-type secondary battery comprising the anode. The anode for a cable-type secondary battery according to the present invention comprises a polymer resin layer formed by coating on the outer surface of an anode active material layer, thereby preventing the release of the anode active material layer from a wire-type current collector and eventually preventing the deterioration of battery performances. | 10-15-2015 |
20150297898 | POWER SOURCE FOR AN IMPLANTABLE MEDICAL DEVICE - A battery having an electrode assembly located in a housing that efficiently utilizes the space available in many implantable medical devices is disclosed. The battery housing includes a cover and a case. The electrode assembly includes an anode tab and a cathode tab that are coupled to the cover and to a feedthrough pin disposed on the cover. The coupling of the anode tab to the cover defines an anode terminal while the coupling of the cathode tab to the feedthrough pin defines the cathode terminal. The anode and cathode tabs are aligned with the feedthrough pin and the connection point at the cover such that the tabs and feedthrough pin overlap each other along a common plane that is perpendicular to a plane that is defined by a major surface of the cover. | 10-22-2015 |
20150303416 | BATTERY PACK WITH CELLS OF DIFFERENT CAPACITIES ELECTRICALLY COUPLED IN PARALLEL - The disclosed embodiments provide a battery pack for use with a portable electronic device. The battery pack includes a first set of cells with different capacities electrically coupled in a parallel configuration. Cells within the first set of cells may also have different thicknesses and/or dimensions. The first set of cells is arranged within the battery pack to facilitate efficient use of space within a portable electronic device. For example, the first set of cells may be arranged to accommodate components in the portable electronic device. | 10-22-2015 |
20150303485 | ELECTRODE WITH IMPROVEMENT OF BIASED MOVEMENT AND SECONDARY BATTERY COMPRISING THE SAME - The present disclosure refers to a secondary battery comprising a reinforcing material in the fore part of an electrode current collector used in a jelly-roll type electrode assembly, thereby making the jelly-roll type electrode assembly wound in the predetermined position and eventually solving the problem an internal short-circuit due to biased movement. | 10-22-2015 |
20150303526 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a non-aqueous electrolyte secondary battery that can achieve both battery characteristics during normal usage and resistance to overcharging at high levels. In this non-aqueous electrolyte secondary battery, an electrode body, which includes a positive electrode and a negative electrode, and a non-aqueous electrolyte are housed in a battery case. The battery case is provided with a current interrupt mechanism that activates when the pressure inside the case increases. The non-aqueous electrolyte contains cyclohexylbenzene and 4,4′-difluorobiphenyl as gas generating agents that decompose and generate gas when the battery reaches an overcharged state. In addition, when the overall quantity of the non-aqueous electrolyte is taken to be 100 mass %, a ratio of the content (mass %) of the 4,4′-difluorobiphenyl (W2) relative to the content (mass %) of the cyclohexylbenzene (W1) (W2/W1) is 0.025 to 0.25. | 10-22-2015 |
20150307752 | SWELLING TAPE FOR FILLING GAP - The present invention relates to swelling tape for filling a gap and its use. The swelling tape is, for example, applied between gaps in which a fluid is present, thereby being deformed into a three-dimensional shape to fill the gap and fix an object separated by gaps as needed. | 10-29-2015 |
20150311484 | BATTERY, BATTERY PACK, AND METHOD OF MANUFACTURING BATTERY - A battery including a plurality of cells housed in a battery container, wherein the battery container is formed of an insulating material and includes a plurality of housing portions formed by an inner wall portion of the battery container, each of the housing portions housing an associated one of the cells, and a conductive member for use in connecting the plurality of cells is embedded in a wall portion of the battery container. The housing portion has a shape conforming to an outer face of the cell and is in contact with the outer face of the cell. | 10-29-2015 |
20150325832 | BATTERY - A flat electrode body of a battery has a first-side curved end positioned on a first side of an electrode body width direction and a second-side curved end positioned on a second side. A positive electrode innermost curved portion of a positive electrode sheet is disposed inside the first-side curved end. When the dimension from a positive electrode connecting portion to the end on the first side of the electrode body is defined as a distance and the dimension from the positive electrode connecting portion to the end on the second side of the electrode body is defined as a distance, the positive electrode connecting portion being in the positive electrode protrusion wound portion and connected to a terminal connecting portion of a positive terminal member, the terminal connecting portion is connected to the positive electrode connecting portion at a position satisfying the condition Ha≧1.1Hb. | 11-12-2015 |
20150325838 | LITHIUM SECONDARY BATTERY AND VEHICLE WITH THE SAME - A lithium secondary battery includes an electrode body containing a positive electrode and a negative electrode, a non-aqueous electrolytic solution, and a battery case in which the electrode body and the non-aqueous electrolytic solution are housed, wherein the positive electrode includes a positive electrode active material particle of a hollow structure having a shell portion formed of a lamellar lithium transition metal oxide and a hollow portion formed therein, the long diameter of a primary particle of the lithium transition metal oxide based on SEM observation is 1 μm or less, the thickness of the shell portion based on SEM observation is 2 μm or less, the negative electrode is provided with a negative electrode active material particle formed of a carbon material, and a krypton adsorption amount of the negative electrode active material particle is 3.5 m | 11-12-2015 |
20150325885 | METHOD FOR PRODUCING ELECTRICAL STORAGE DEVICE, AND ELECTRICAL STORAGE DEVICE - A method for producing an electrical storage device includes winding a positive electrode, a negative electrode, and a lithium ion source to form a wound element that has a flat part and a curved part, the lithium ion source including a plurality of parts that are arranged in a winding direction through a gap, the wound element being formed so that the gap is situated in the curved part. | 11-12-2015 |
20150333299 | CURVED BATTERY AND MANUFACTURING METHOD THEREOF - A curved battery includes an arc protection member and a battery unit. The battery unit is disposed in the arc protection member and has a shape corresponding to the arc protection member. The battery unit includes a first electrode layer, a second electrode layer, a conductive material, a first conductive handle and a second conductive handle. The battery unit is winded from one end away from the first conductive handle and the second conductive handle towards directions of the first conductive handle and the second conductive handle. The first conductive handle and the second conductive handle point to directions perpendicular to an axial direction of the battery unit and extend out of the arc protection member via two openings of the arc protection member. Thus, the curved battery is allowed with a large curvature that is less likely to cause damages of the battery unit. | 11-19-2015 |
20150340662 | BATTERY CELL HAVING ELECTRODE ASSEMBLY OF STAGGERED ARRAY STRUCTURE - Disclosed herein is a battery cell configured to have a structure in which two or more electrode assemblies, each including positive electrodes, negative electrodes, and separators disposed respectively between the positive electrodes and the negative electrodes, are mounted in a battery case, wherein the electrode assemblies are stacked such that electrode terminals of the electrode assemblies are aligned in a vertical direction, one side lower edge of an upper one of the electrode assemblies is disposed in contact with a top surface of a lower one of the electrode assemblies, and one side upper edge of the lower electrode assembly is disposed in contact with a bottom surface of the upper electrode assembly at an interface between the electrode assemblies, and the battery case has an internal shape corresponding to an external shape of the stacked electrode assemblies. | 11-26-2015 |
20150340726 | ENERGY STORAGE DEVICE - An energy storage device comprising: an electrode assembly that includes a sheet-like first electrode and a sheet-like second electrode, the first electrode and the second electrode being alternately layered, wherein each of the first electrode and the second electrode includes a sheet-like current collecting substrate, the current collecting substrate of the first electrode is bent toward one side in a layered direction in at least a part of an end portion of the first electrode, the electrode assembly includes an extension portion formed in such a manner that the current collecting substrate of the second electrode extends outward more than the end portion of the first electrode, the extension portion includes a bundle portion formed by bundling the current collecting substrate at a leading end side in an extending direction of the extension portion, and a central position in the layered direction of the bundle portion is shifted from a center in the layered direction of the extension portion toward the one side in the layered direction. | 11-26-2015 |
20150340730 | ELECTRODE STRUCTURE AND LITHIUM BATTERY INCLUDING THE SAME - Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, and a first separator disposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode have active material layers having different loading levels. A lithium battery may have improved high rate characteristics and lifespan characteristics by including the electrode structure. | 11-26-2015 |
20150340731 | ELECTRODE STRUCTURE AND LITHIUM BATTERY INCLUDING THE SAME - Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, a first separator, and a second separator having a thickness that is different from a thickness of the first separator, wherein the positive electrode and the negative electrode respectively include active material layers having different loading levels. The lithium battery may have high rate characteristics and life characteristics by including the electrode structure. | 11-26-2015 |
20150340732 | ELECTRODE STRUCTURE AND LITHIUM BATTERY INCLUDING THE SAME - Provided are an electrode structure and a lithium battery including the same. The electrode structure may include a positive electrode, a negative electrode, and a first separator disposed between the positive electrode and the negative electrode, wherein the positive electrode and the negative electrode have active material layers having different loading levels and current densities. A lithium battery may have improved high rate characteristics and lifespan characteristics by including the electrode structure. | 11-26-2015 |
20150349340 | ANODE AND BATTERY - An anode capable of preventing expansion of an anode active material layer and a battery using it are provided. The anode includes an anode current collector, and an anode active material layer containing silicon (Si) as an element, wherein the anode active material layer therein contains at least one selected from the group consisting of a fluoride of an alkali metal and a fluoride of an alkali earth metal. | 12-03-2015 |
20150349372 | STACKED ELECTROCHEMICAL CELL WITH INCREASED ENERGY DENSITY - An electrochemical cell assembly ( | 12-03-2015 |
20150349382 | STEPPED ELECTRODE GROUP STACK - Disclosed herein is an electrode group stack including a stacked structure of electrode groups, each including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, in which the electrode groups are stacked in a height direction on the basis of a plane such that the positive electrode and the negative electrode face each other in a state in which the separator is disposed between the positive electrode and the negative electrode, wherein the stacked structure of the electrode groups includes electrode groups having different areas at an interface between the electrode groups, and a ratio of capacity to area of the positive electrode and the negative electrode at the interface between the electrode groups (N/P ratio) is equal to or greater than a ratio of capacity to area of a positive electrode and a negative electrode constituting an electrode group having a relatively large area (N/P ratio). | 12-03-2015 |
20150357679 | LITHIUM ION SECONDARY BATTERY - There is provided a cylindrical pin-type lithium-ion secondary battery having excellent high temperature storage characteristics and charge-discharge cycle characteristics. The battery includes: a bottom-closed cylindrical battery case having an opening portion; a wound-type electrode assembly and a non-aqueous electrolyte housed in the battery case; and a sealing plate sealing the opening portion. The battery has: an outer diameter R of 3 to 6.5 mm; a height H of 15 to 65 mm; an amount of the non-aqueous electrolyte per discharge capacity of 1 mAh of 1.7 to 2.8 μL; and a packing ratio of 71 to 85%. | 12-10-2015 |
20150364727 | RECHARGEABLE BATTERY - A rechargeable battery including an electrode assembly having a first electrode tab upwardly protruding from the electrode assembly and a second electrode tab upwardly protruding from the electrode assembly; a first support body surrounding a side portion of the electrode assembly; a case accommodating the electrode assembly and the first support body, the case having a top opening; and a cap assembly sealing the top opening of the case, wherein the first support body includes a plate-shaped main body contacting one long side surface of the electrode assembly, and a side surface part bent from the main body, the side surface part having elasticity and surrounding short side surfaces of the electrode assembly. | 12-17-2015 |
20150364731 | RECHARGEABLE BATTERY - A rechargeable battery including a case; a cap plate installed on the case; and a terminal, the terminal including a terminal pillar protruding from the cap plate, and a terminal plate coupled to the terminal pillar, wherein the terminal pillar includes a first pillar coupled to the terminal plate; second pillar coupled to the first pillar, and a welding member on an exterior of the first pillar or the second pillar. | 12-17-2015 |
20150372336 | MANDREL FOR ELECTRODE ASSEMBLIES - A mandrel for use in a battery assembly may include a positive mandrel portion and a negative mandrel portion. Each of the mandrel portions may include a connector element coupling region and an electrode coupling region. The connector element coupling region may be configured to be coupled to a connector element and the electrode coupling region may be configured to be coupled to an electrode. | 12-24-2015 |
20150372337 | BATTERY CELL INCLUDING STEPPED STRUCTURE - Disclosed herein is a battery cell including an electrode assembly configured to have a structure in which two or more electrode rolls are stacked in a height direction on the basis of a plane, wherein the electrode rolls have the same size or at least two of the electrode rolls have different sizes, and the electrode rolls having different sizes are stacked to form one or more stepped structures in width and/or height. | 12-24-2015 |
20150372338 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING POSITIVE ELECTRODE SHEET OF NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes an electrode wound body formed by winding positive and negative electrode sheets with separators interposed therebetween. The positive electrode sheet is manufactured through a coating process wherein a positive electrode mixture paste is applied to a current collecting sheet to form a mixture layer. Prior to the coating process, sections of the current collecting sheet to be uncoated and to be coated are differentiated in terms of wettability. Alternatively, a positive electrode mixture paste with viscosities at slow and fast shear velocities within a predetermined range is used. Thus, the cross-sectional shape of the width-direction end of the mixture layer includes a steep cross-sectional shape, wherein the width of a section as thin as or thinner than 50% of a thickness of a width-direction center flat portion of the mixture layer is 100 μm or less. | 12-24-2015 |
20150372339 | BUTTON CELLS AND METHOD OF PRODUCING SAME - A button cell includes a housing cup and a housing top separated from one another by an insulating seal and which form a housing with a flat bottom and a flat top parallel to it, and an electrode-separator assembly within the housing including flat layer positive and negative electrodes and connected to one another by a flat separator, wherein the layers are aligned essentially at right angles to the flat bottom and the flat top and the electrode-separator assembly is a spiral winding having end faces defining side surfaces of the spiral winding facing in an axial direction relative to the flat bottom and the flat top, and one of the electrodes connects to the flat bottom or the flat top via an output conductor including a thin film resting flat between an end face of the spiral winding and the flat top or the flat bottom. | 12-24-2015 |
20160006077 | Lithium Ion Battery - A high-input and high-output battery having a large capacity while guaranteeing safety is provided. As a composition of an electrolytic solution, a composition ratio of ethylene carbonate (EC) is 20 vol % or more and 30 vol % or less, and a composition ratio of dimethyl carbonate (DMC) is 36 vol % or more and 50 vol % or less, and a composition ratio η (DMC/EMC) of dimethyl carbonate (DMC) and ethyl methyl carbonate (EMC) is 1.0≦η≦1.7. Furthermore, a composition ratio of an additive is 0.1 wt. % or more and 1.0 wt. % or less, and a concentration of lithium salt is 1.0 mol/L or more and 1.5 mol/L or less. | 01-07-2016 |
20160020483 | Cable-Type Battery And Method For Fabricating a Cable-Type Battery - A cable-type battery comprising:
| 01-21-2016 |
20160043358 | SECONDARY BATTERY - A secondary battery includes an electrode assembly including a first electrode plate, a second electrode plate facing the first electrode plate, and a separator between the first electrode plate and the second electrode plate, and a case accommodating the electrode assembly, wherein the first electrode plate includes a first base material having a sloped end and a first active material layer positioned on the first base material, the first active material layer having a sloped end. | 02-11-2016 |
20160043406 | POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME - A power storage device is reduced in weight. A metal sheet serving as a negative electrode current collector is separated and another negative electrode current collector is formed. For example, through the step of forming silicon serving as a negative electrode active material layer over a titanium sheet and then performing heating, the titanium sheet can be separated. Then, another negative electrode current collector with a thickness of more than or equal to 10 nm and less than or equal to 1 μm is formed. Thus, light weight of the power storage device can be achieved. | 02-11-2016 |
20160043428 | BATTERY AND METHOD OF MANUFACTURING BATTERY - The present invention maintains a power generating element in a flat shape as far as possible to thereby improve workability in a manufacturing process. In a battery including a power generating element formed into a flat shape and housed in a container, the power generating element formed by winding a foil-shaped positive electrode plate | 02-11-2016 |
20160049620 | BATTERY - A battery is provided including a battery element including a positive electrode, a negative electrode, and an electrolyte; and a laminate film for packaging the battery element, wherein the laminate film includes a first portion including a first portion thickness, a second portion including a second portion thickness and a third portion including a third portion thickness, wherein the second portion is located between the first portion and the third portion, wherein a first side of the third portion is not in contact with a second side of the third portion, and the third portion thickness includes a thickness of the first side and the second side of the third portion, wherein the first portion thickness of at least a part of the first portion is thinner than the second portion thickness, wherein the third portion thickness of at least a part of the third portion is thicker than the first portion thickness, and wherein the third portion includes an edge portion of the laminate film. | 02-18-2016 |
20160049683 | SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A secondary battery and method of manufacturing the same are disclosed. In one aspect, the secondary battery includes an electrode assembly including a first current collector, a second current collector, and an isolation layer interposed between the first and second current collectors, the first current collector, the second current collector, and the isolation layer being wound, each of the first and second current collectors including a body portion and an extension portion extending from the body portion, and the extension portions of the first and second current collectors extending in substantially opposite directions. The battery also includes a first auxiliary current collector formed over the electrode assembly and electrically connected to the extension portion of the first current collector. The battery further includes a second auxiliary current collector formed below the electrode assembly and electrically connected to the extension portion of the second current collector. | 02-18-2016 |
20160049684 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes battery element formed by laminating and winding positive electrode and negative electrode via separator. Positive electrode includes a positive electrode current-collector-exposed portion, in which the positive electrode current collector is exposed over a length dimension of not less than one turn of the winding of battery element in the outermost circumference and an intermediate layer portion of the winding. The negative electrode in a part facing the positive electrode current collector exposed in the intermediate layer portion includes the negative electrode active material layer laminated on the negative electrode current collector. Negative electrode can be provided with a slit at an exposed side with respect to both exposed ends of the positive electrode current-collector-exposed portion. | 02-18-2016 |
20160049685 | ENERGY STORAGE DEVICE - An energy storage device includes: a flattened electrode assembly formed by winding electrodes such that a hollow portion is formed, the electrode assembly including a pair of curved portions opposed manner in a major axis direction and a pair of flat portions opposed in a minor axis direction; and a case storing the electrode assembly therein, wherein assuming a thickness of the flat portion in the minor axis direction as A, a thickness of the curved portion in a radial direction as B, and a thickness of the hollow portion in the minor axis direction as W, the electrode assembly satisfies A+(W/2)≦B in a state where the electrode assembly is discharged. | 02-18-2016 |
20160049686 | CABLE-TYPE SECONDARY BATTERY - Provided is a cable-type secondary battery extending longitudinally including a lithium ion supplying core comprising an electrolyte, an inner electrode support of a hollow structure formed to surround an outer surface of the lithium ion supplying core, an inner electrode formed on a surface of the inner electrode support and including an inner current collector and an inner electrode active material, a separation layer formed to surround an outer surface of the inner electrode to prevent a short circuit between electrodes, and an outer electrode formed to surround an outer surface of the separation layer and including an outer electrode active material layer and an outer current collector. | 02-18-2016 |
20160056472 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME - Provided is a non-aqueous electrolyte secondary battery in which the effect achieved by adding an oxalate complex compound is suitably exhibited and which can achieve battery characteristics during normal usage and resistance to overcharging at high levels. This battery is provided with an electrode body obtained by laminating a positive electrode having a positive electrode active material layer and a negative electrode having a negative electrode active material layer. A coating film which is derived substantially from an oxalate complex compound and which contains boron atoms and/or phosphorus atoms is formed on the negative electrode active material layer. In addition, in the negative electrode active material layer that constitutes the electrode body, the standard deviation (σ) of resistance values, which are measured at a plurality of points at equal intervals in a line direction extending linearly from one prescribed layering surface to the layering surface on the opposite side, is 3.0 to 7.2. | 02-25-2016 |
20160079584 | RECHARGEABLE BATTERY - One or more embodiments of the present invention provide a rechargeable battery for allowing electrode terminals and electrode tabs to be easily coupled. A rechargeable battery according to one or more embodiments of the present invention include: an electrode assembly having first and second electrodes at opposite surfaces of a separator and wound about an axis; a first terminal coupled to the first electrode through a first tab; a second terminal coupled to the second electrode through a second tab; a case accommodating the electrode assembly and defining first and second openings at its opposite ends; a first gasket between the first terminal and the first opening sealing the first opening and allowing the first terminal to protrude outside of the case; and a second gasket between the second terminal and the second opening sealing the second opening and allowing the second terminal to protrude outside of the case. | 03-17-2016 |
20160079630 | CABLE-TYPE SECONDARY BATTERY AND PREPARATION THEREOF - The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; and a sheet-form laminate of separation layer-outer electrode, spirally wound to surround the outer surface of the inner electrode, the laminate being formed by carrying out compression for the integration of a separation layer for preventing a short circuit, and an outer electrode. | 03-17-2016 |
20160093851 | BATTERY MODULE WITH INDIVIDUALLY RESTRAINED BATTERY CELLS - The present disclosure includes a battery module that includes a plurality of lithium ion battery cells disposed within a battery module packaging. Each of the plurality of lithium ion battery cells is individually held in place within the battery module packaging by a restraining medium. The restraining medium conformally covers a substantial portion of the surface of each of the plurality of lithium ion battery cells and prevents each of the plurality of lithium ion battery cells from expanding during operation of the battery module. | 03-31-2016 |
20160099456 | COMPLEX ELECTRODE ASSEMBLY INCLUDING PLURALITY OF ELECTRODE ASSEMBLIES AND ELECTROCHEMICAL DEVICE COMPRISING THE COMPLEX ELECTRODE ASSEMBLY - A complex electrode assembly includes a first sheet-type wiring which extends in a lengthwise direction of the first sheet-type wiring and comprises a sheet region of which a width that is perpendicular to the lengthwise direction is greater than a thickness that is perpendicular to the lengthwise direction and a width direction of the first sheet-type wiring, and electrode assemblies which are arranged separate from each other in the lengthwise direction of the first sheet-type wiring and are electrically connected to the first sheet-type wiring. The first sheet-type wiring may be disposed to face an outer surface of each of the electrode assemblies. | 04-07-2016 |
20160099457 | RECHARGEABLE BATTERY AND MANUFACTURING METHOD THEREOF - A rechargeable battery includes: a first electrode assembly and a second electrode assembly, each of the first and second electrode assemblies including a first electrode and a second electrode, each of the first and second electrodes including an electrode plate and an electrode uncoated region; a case accommodating the first and second electrode assemblies; a cap assembly sealing the case; a first current collecting member electrically connecting the first electrode of the first electrode assembly and the first electrode of the second electrode assembly; and a second current collecting member electrically connecting the second electrode of the first electrode assembly and the second electrode of the second electrode assembly. Each of the first and second current collecting members includes a first current collecting plate coupled with a connecting terminal, and a second current collecting plate, one surface of the second current collecting plate contacting at least one of the electrode uncoated regions. | 04-07-2016 |
20160104914 | RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly having first and second electrodes at opposite sides of a separator and wound about an axis; a first terminal coupled to the first electrode through a first tab; a second terminal coupled to the second electrode through a second tab; a case accommodating the electrode assembly and including first and second openings at its opposite ends; a first gasket between the first terminal and the first opening, the first gasket sealing the first opening and allowing the first terminal to protrude outside of the case; and a second gasket between the second terminal and the second opening, the second gasket sealing the second opening and allowing the second terminal to protrude outside of the case. The case may further include a fixing portion at its inner side that protrudes toward the electrode assembly. | 04-14-2016 |
20160111728 | ELECTRODE FOR USE IN A NONAQUEOUS ELECTROLYTE SECONDARY CELL, METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY CELL - An electrode ( | 04-21-2016 |
20160118681 | RECHARGEABLE BATTERY - A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator, the first and second electrodes being located on either side of the separator and wound together; a center pin located within the electrode assembly and electrically connected to an uncoated region of the first electrode; a case accommodating the electrode assembly and electrically connected to an uncoated region of the second electrode; a terminal extending to the outside of the case from the center pin; and a gasket located between the terminal and an opening of the case and sealing the opening. | 04-28-2016 |
20160118682 | FLAT-WINDING TYPE SECONDARY BATTERY - An object of the present invention is to provide a flat-winding type secondary battery having a simple structure and thus capable of being manufactured in a simplified manufacturing process. A flat-winding type secondary battery according to the present invention is a flat-winding type secondary battery having a flat-shaped winding group obtained by winding positive and negative electrodes with separators interposed therebetween. The winding group has a shaft core having a configuration in which leading end portions of a sheet member at both sides in a winding direction are folded in an a mutually approaching direction and disposed at positions separated from each other, the sheet member having a higher bending rigidity than that of any of the positive and negative electrodes and separators. | 04-28-2016 |
20160118684 | ELECTROPHORETIC DEPOSITION OF THIN FILM BATTERIES - Methods for forming three-layer thin-film battery (TFB) structures by sequential electrophoretic deposition (EPD) on a single conductive substrate. The TFBs may be two-dimensional or three-dimensional. The sequential EPD includes EPD of a first battery electrode followed by EPD of a porous separator on the first electrode and by EPD of a second battery electrode on the porous separator. In some embodiments of a Li or Li-ion TFB, the separator includes a Li ion conducting solid. In some embodiments of a Li or Li-ion TFB, the separator includes an inorganic porous solid rendered ionically conductive by impregnation with a liquid or polymer. In some embodiments, the TFBs are coated and sealed with an EPDd PEEK layer. | 04-28-2016 |
20160126528 | RECHARGEABLE BATTERY - A rechargeable battery includes a wound electrode assembly comprising a separator between a first electrode and a second electrode, wherein the first and second electrodes each include uncoated regions and coated regions; a case accommodating the electrode assembly; and a first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, wherein an uncoated region of the first electrode includes inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and wherein the second electrode includes an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region. | 05-05-2016 |
20160126555 | ELECTRODE COMPOSITE, AND SECONDARY BATTERY AND CABLE TYPE SECONDARY BATTERY INCLUDING THE SAME - Provided is a sheet type separation layer-electrode composite including a current collector, an electrode active material layer formed on one surface of the current collector, and a porous first support layer formed on an upper surface of the electrode active material layer, and a secondary battery and a cable type secondary battery including the same. | 05-05-2016 |
20160126584 | RECHARGEABLE BATTERY - A rechargeable battery includes a wound electrode assembly having first and second electrodes at opposite surfaces of a separator; a first case accommodating a first side of the electrode assembly and being coupled to the first electrode; a second case accommodating a second side of the electrode assembly and coupled to the second electrode; and a gasket engaged by the electrode assembly and combined at the first and second openings to seal the first and second openings. | 05-05-2016 |
20160126585 | RECHARGEABLE BATTERY - A rechargeable battery that includes: an electrode assembly with a first electrode and a second electrode that include uncoated regions and coated regions; a case; a first electrode tab and a second electrode tab coupled to the first and second electrodes; and a laminating tape attached to opposite surfaces of a front end portion disposed at a center of the electrode assembly and opposite surfaces of a terminal end portion disposed at an outermost side of the electrode assembly. The second electrode tab is coupled to the uncoated region of the second electrode toward the uncoated region of the first electrode in the terminal end portion that is disposed at the outermost side of the electrode assembly, the first electrode tab is coupled to the uncoated region of the first electrode while being disposed closer to the coated region than the second electrode tab in the terminal end portion that is disposed at the outermost side of the electrode assembly, and an insulating laminating tape for preventing the second electrode tab and the uncoated region of the first electrode from electrically contacting each other is further included. | 05-05-2016 |
20160126586 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - Provided is a nonaqueous electrolyte secondary battery in which a flat wound electrode body, a nonaqueous electrolytic solution, and an insulating film are accommodated in a quadrilateral battery case. The insulating film is formed into a bag shape corresponding to a shape of the electrode body and is arranged between an inner wall of the battery case and the electrode body. An entire surface of a bottom-side R portion of two R portions of the electrode body, which faces a bottom surface of the battery case, and an inside of the bag-shaped insulating film, which faces the bottom-side R portion of the electrode body, are joined to each other. | 05-05-2016 |
20160126597 | STEPWISE ELECTRODE ASSEMBLY HAVING VARIOUSLY-SHAPED CORNER AND SECONDARY BATTERY, BATTERY PACK AND DEVICE COMPRISING THE SAME - There is provided an electrode assembly having steps including: a first electrode stair including at least one first electrode unit; and a second electrode stair including at least one second electrode unit having an area different from that of the first electrode unit, wherein the first electrode stair and the second electrode stair are stacked to be adjacent, separated by at least one separator as a boundary therebetween and including one or more electrode laminates having steps formed by a difference between areas of the first electrode stair and the second electrode stair, and shapes of the corners of the first electrode stair and the second electrode stair having steps are different. There is also provided a secondary battery including the electrode assembly. Secondary batteries having various designs without restriction in shapes of corners of electrode units can be provided. | 05-05-2016 |
20160133942 | CABLE-TYPE SECONDARY BATTERY - Disclosed is a cable-type secondary battery including an inner electrode including an inner current collector and an inner electrode active material layer formed surrounding an outer surface of the inner current collector, a separation layer formed surrounding an outer surface of the inner electrode to insert the inner electrode inside, an outer electrode active material structure formed surrounding an outer surface of the separation layer to insert the separation layer inside, the outer electrode active material structure including a porous polymer support and an outer electrode active material layer formed on at least one of an upper surface and a lower surface of the porous polymer support, and an outer electrode including an outer current collector formed surrounding the outer electrode active material structure to insert the outer electrode active material structure inside. | 05-12-2016 |
20160133985 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a nonaqueous electrolyte secondary battery including a flat wound electrode body. The flat wound electrode body has a flat portion, a first R portion, and a second R portion. The second R portion is provided on a bottom side of a battery case when a nonaqueous electrolytic solution is put into the battery case at least in a battery construction step. Opposite end portions of the second R portion in the winding axial direction are squashed in a thickness direction of the electrode body to a larger extent than opposite end portions of the first R portion in the winding axial direction. | 05-12-2016 |
20160141560 | RECHARGEABLE BATTERY - A rechargeable battery includes: an electrode assembly having first and second electrodes of different polarities; a finishing tape that covers a side and a lower end of the electrode assembly with respect to a virtual longitudinal center line perpendicular to a bottom face of the electrode assembly; a case that holds the electrode assembly and has an opening; a cap assembly coupled to the opening and sealing the case; a first current collecting member and a second current collecting member located within the case and connected to the first electrode and the second electrode, respectively; and a first terminal and a second terminal located on top of the cap assembly and connected to the first current collecting member and the second current collecting member, respectively. | 05-19-2016 |
20160141563 | LITHIUM SECONDARY BATTERY - The present application relates to the field of energy storage devices, in particular to a lithium secondary battery. The battery comprises a shell having a bottom, a cap assembly, a positive terminal, a negative terminal, an electrode assembly and electrolyte, wherein a side wall of the shell comprises a pair of main planes and a pair of side faces, and the opening is arranged opposite to the bottom; the electrode assembly is formed by winding a positive plate, a negative plate and a composite separation film comprising a polymer microporous film layer and a ceramic composite material layer; a first extension portion extends from one end of the positive plate facing the cap assembly and is electrically connected with the positive terminal; a second extension portion extends from one end of the positive plate facing the cap assembly and is electrically connected with the negative terminal; and the air permeability of the composite separation film and the thickness of the side faces satisfy the relationship of 0.05 s/(100 mL·μm)≦A/B≦1.0 s/(100 mL·μm). The present application provides a lithium secondary battery capable of improving the safety performance of the battery effectively. | 05-19-2016 |
20160141564 | RECHARGEABLE BATTERY - A rechargeable battery includes an electrode assembly having a first electrode and a second electrode of different polarities, a case with an opening that houses the electrode assembly, the case having a pair of opposing first side walls, each first side wall of the pair of first side walls including at least one groove extending from the opening of the case to an opposite side of the case, a cap assembly coupled to the opening of the case to seal the case, a first current collecting member and a second current collecting member inside the case, the first and second current collecting members being connected to the first electrode and the second electrode, respectively, and a first terminal and a second terminal on the cap assembly, the first and second terminals being connected to the first current collecting member and the second current collecting member, respectively. | 05-19-2016 |
20160141736 | ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING THE SAME - Disclosed are an electrochemical device and a method for manufacturing the same. The electrochemical device includes an electrode assembly that is formed in such a manner that a first electrode, a separator, and a second electrode are wound in the form of a jelly-roll shape, and includes a hollow portion in a center thereof, a first tap plate that is installed on an upper surface of the electrode assembly to be electrically connected to the first electrode, and includes a first through-hole corresponding to the hollow portion in a center thereof, and a second tap plate that is installed on a lower surface of the electrode assembly to be electrically connected to the second electrode, and includes a second through-hole corresponding to the hollow portion in a center thereof. | 05-19-2016 |
20160149167 | RECHARGEABLE BATTERY - A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly including a first electrode and a second electrode wound with a separator interposed between the first and second electrodes and a case accommodating the electrode assembly. The battery also includes a cap assembly including a cap plate coupled to the case to close an opening formed on one side of the case, a first terminal placed at the cap plate and electrically connected to the first electrode, and a second terminal placed at the cap plate and electrically connected to the second electrode. The case includes a concave portion formed on one outer surface. | 05-26-2016 |
20160149261 | ALL-SOLID-STATE LITHIUM-SULFUR POLYMER ELECTROCHEMICAL CELLS AND PRODUCTION METHODS THEREOF - All-solid-state lithium-sulfur electrochemical cells and production methods thereof are described. The Li—S electrochemical cells comprise at least one multilayer component which comprises an ion-conductive solid electrolyte film, a positive electrode film containing a sulfur composite, and a negative electrode film containing lithium. Positive electrodes films, prefabricated electrolyte-positive electrode elements, their uses as well as methods of their production are also described. | 05-26-2016 |
20160155995 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND PACK BATTERY | 06-02-2016 |
20160155998 | SECONDARY BATTERY | 06-02-2016 |
20160156061 | SQUARE LITHIUM SECONDARY BATTERY | 06-02-2016 |
20160164107 | ELECTRIC POWER GENERATOR USING POTABLE WATER, WITH OXYGEN AND HYDROGEN RELEASE - An electricity generator utilizing drinking water which discharges oxygen and hydrogen based on the differential electronegativity phenomenon of chemical elements, and which uses drinkable water to transfer the electrical loads. By using electrodes having a particular physical structures and which is made of different materials, and which also uses a condenser, an alternative impulse generator and a doubler or a voltage multiplier, stronger power is achieved. In this process, water electrolysis takes place concomitantly wherein gas bubbles appear in the two electrodes. Oxygen is discharged to the anode which is made of an aluminum electrode, and hydrogen is discharged to the cathode which is made of a copper electrode. With a larger generator, oxygen and hydrogen gases may be collected and used to produce heat energy. In the agriculture, medicine, household and other related industries, the electricity generator may also be used. | 06-09-2016 |
20160172646 | ENERGY STORAGE APPARATUS | 06-16-2016 |
20160172705 | WOUND ELECTRODE ASSEMBLY FOR NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY, NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY INCLUDING THE SAME, AND METHOD FOR MANUFACTURING THE SAME | 06-16-2016 |
20160172712 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY | 06-16-2016 |
20160181618 | ELECTRODE WINDING ELEMENT FOR NON-AQUEOUS ELECTROLYTE RECHAREABLE BATTERY, NON-AQUEOUS ELECTROLYTE RECHARGEABLE LITHIUM BATTERY INCLUDING SAME, METHOD OF PREPARING SAME | 06-23-2016 |
20160181652 | ELECTRODE BODY AND ELECTRODE BODY MANUFACTURING METHOD | 06-23-2016 |
20160181668 | LITHIUM-ION SECONDARY BATTERY | 06-23-2016 |
20160181669 | ELECTRODE WINDING ELEMENT FOR NON-AQUEOUS ELECTROLYTE RECHAREABLE BATTERY, NON-AQUEOUS ELECTROLYTE RECHARGEABLE LITHIUM BATTERY INCLUDING SAME, METHOD OF PREPARING SAME | 06-23-2016 |
20160190533 | ELECTRODE BODY - An electrode body includes a positive and a negative electrode, and insulating layer. The positive electrode includes a positive electrode current collector and a positive electrode mixture layer formed both sides of the positive electrode current collector. The negative electrode includes a negative electrode current collector and a negative electrode mixture layer formed both sides of the negative electrode current collector. The insulating layer is provided between the positive and the negative electrode. The insulating layer includes a first and a second insulating layer. The first insulating layer contains ceramic particles and resin particles. A mass ratio of the ceramic particles to the resin particles is 100:0 to 50:50. The second insulating layer is formed of resin particles. The first insulating layer is arranged between the positive electrode mixture layer and the second insulating layer or between the negative electrode mixture layer and the second insulating layer. | 06-30-2016 |
20160190593 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, AND WINDING ELEMENT RECHARGEABLE LITHIUM BATTERY - A positive electrode for a rechargeable lithium battery includes a positive current collector; a high elastic modulus layer on the positive current collector and including a first positive active material and a high elastic modulus binder; and a low elastic modulus layer on the high elastic modulus layer and including a second positive active material and a low elastic modulus binder, wherein the low elastic modulus binder has a lower tensile modulus than the high elastic modulus binder. A winding element includes the positive electrode. A rechargeable lithium battery includes the winding element. | 06-30-2016 |
20160190633 | CURRENT COLLECTOR, NEGATIVE ELECTRODE AND BATTERY - A current collector including a first principal plane and a second principal plane. In the current collector, the roughness of the first principal plane and second principal plane being mutually different. | 06-30-2016 |
20160190634 | BATTERY PACK - A battery pack includes a plurality of non-aqueous electrolyte single cells, each single cell being such that a rolled electrode body is housed in a flat case; a plurality of spacers; and a banding member. The rolled electrode body includes a collector portion, and a power generating portion. Each spacer has a recessed portion provided on at least one surface that faces the adjacent single cell. A side plate of the case that faces the surface of the spacer on which the recessed portion is provided includes a thick portion that contacts the power generating portion of the rolled electrode body inside the case, and a thin portion that is thinner than the thick portion and is continuous with both sides of the thick portion in the rolling axis direction. The surface of the spacer on which the recessed portion is provided abuts against only the thick portion. | 06-30-2016 |
20160190653 | Spirally-Wound Lithium Battery - A spirally-wound lithium battery includes: a bottomed cylindrical cell can doubling as an anode current collector; and a strip-shaped electrode body including an anode and a cathode arranged faced each other via a separator, the anode including an anode active material of lithium metal or alloy, the cell can being sealed, with a non-aqueous organic electrolyte, containing the electrode body wound in a longitudinal direction, the electrode body being wound from a winding axis side around the axis in a vertical direction, an extending direction of a cell can cylindrical axis, such that the anode is arranged at an outermost circumference, the electrode body is attached with a conductor, continuously extending in the longitudinal direction thereof, on an outer circumferential surface of the anode, from a winding end of the anode to an area thereof opposed to an inner surface of the cathode on its winding end side. | 06-30-2016 |
20160190654 | NON-AQUEOUS ELECTROLYTE RECHARGEABLE BATTERY - Aspects of the present disclosure are directed toward a new and improved non-aqueous electrolyte rechargeable battery that is capable of suppressing or reducing non-uniformity of pressure during the manufacturing process, and thus suppressing or reducing a thickness increase during cycling, as well as a manufacturing method thereof. The present disclosure provides a non-aqueous electrolyte rechargeable battery including: an stacked electrode assembly in which electrodes and a separator are sequentially stacked; current collecting tabs attached to portions of some surfaces of the electrodes; and filling members positioned in vicinities of the current collecting tabs along the surface directions. | 06-30-2016 |
20160197379 | SECONDARY BATTERY | 07-07-2016 |
20160204393 | NONAQUEOUS ELECTROLYTE BATTERY AND MANUFACTURING METHOD THEREOF | 07-14-2016 |
20160204437 | ELECTRODE, POWER STORAGE DEVICE, AND ELECTRONIC EQUIPMENT | 07-14-2016 |
20160254565 | SECOND BATTERY AND METHOD OF PRODUCING THE SAME | 09-01-2016 |
20160254569 | ASSEMBLED BATTERY | 09-01-2016 |
20160380299 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND BATTERY PACK - A nonaqueous electrolyte secondary battery includes a wound electrode body, and the wound electrode body includes two curved portions and a center flat portion which has flat surfaces. A positive electrode winding end, a negative electrode winding end, and separator winding ends are positioned on the same curved portion. The negative electrode winding end is arranged at an advanced position from the positive electrode winding end in a winding direction, and at least one of the separator winding ends is positioned at an advanced position from the negative electrode winding end in the winding direction. A distance a (mm) from the negative electrode winding end to the separator winding end and a distance b (mm) from the positive electrode winding end to the negative electrode winding end satisfy relationships 0.5≦a×(a+b)≦104 and 0≦b≦11. | 12-29-2016 |
20160380300 | SECONDARY BATTERY - A wound electrode body includes a negative electrode core body exposed portion on one of the end portions of the wound electrode body in a winding axis direction, which is layered by being wound. A core body connection of a negative electrode collector is disposed on one of the outer surfaces of the layered negative electrode core body exposed portion, and a negative electrode collector receiving component is disposed on the other one of the outer surfaces. Furthermore, tapes are each disposed between the core body connection and the negative electrode core body exposed portion and between the negative electrode collector receiving component and the negative electrode core body exposed portion. Each tape includes a base material layer, and an adhesion layer containing a coloring agent. | 12-29-2016 |
20160380302 | CURVED SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - A manufacturing method of a curved secondary battery includes fabricating an electrode assembly such that the electrode assembly includes a first electrode plate having a first electrode tab, a second electrode plate having a second electrode tab, and a separator interposed between the first electrode plate and the second electrode plate, inserting the electrode assembly into a pouch and injecting a liquid-type gel electrolyte to form a basic secondary battery, wherein the first electrode tab and the second electrode tab protrude from the pouch in a direction, carrying out a first molding to form a curved secondary battery having a curvature, the first molding including placing the basic secondary battery in a jig and pressing, and carrying out a second molding to gel the liquid-type gel electrolyte, the second molding including heating the curved secondary battery in a state in which the curved secondary battery is pressed by the jig. | 12-29-2016 |
20170237068 | ACTIVE MATERIAL FOR BATTERY, NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK, AND VEHICLE | 08-17-2017 |
20170237109 | MULTILAYER CABLE-TYPE SECONDARY BATTERY | 08-17-2017 |
20170237125 | Method for Producing a Prismatic Battery Cell | 08-17-2017 |
20180023199 | ELECTROCATALYTIC HYDROGEN EVOLUTION AND BIOMASS UPGRADING | 01-25-2018 |
20180026263 | BATTERY WITH A SPECIFIC LIQUID CATHODE WHICH MAY OPERATE AT HIGH TEMPERATURES | 01-25-2018 |
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