Entries |
Document | Title | Date |
20080241686 | Lead Storage Battery - A lead storage battery of the present invention has an electrode plate pack comprising a plurality of negative electrode plates in each of which a negative electrode active material layer is retained by a negative electrode grid, a plurality of positive electrode plates in each of which a positive electrode active material layer is retained by a positive electrode grid, and a plurality of separators separating the positive electrode plate and the negative electrode plate; a positive electrode connecting member connected to each positive electrode plate of the electrode plate pack, and a negative electrode connecting member connected to each negative electrode plate of the electrode plate pack. The positive and negative electrode grids, and the positive and negative electrode connecting members comprise a Pb alloy including at least one of Ca and Sn; the negative electrode active material layer includes Sb; and the separator includes silica. | 10-02-2008 |
20080292962 | 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. | 11-27-2008 |
20090035657 | Electrode for Hybrid Energy Storage Device and Method of Making Same - An electrode for a hybrid energy storage device includes a current collector; an active material adhered to and in electrical contact with at least one surface of the current collector; and a tab element, wherein the thickness of the tab element is greater than the thickness of the current collector. | 02-05-2009 |
20090035658 | ASSEMBLED BATTERY AND BATTERY PACK - According to an aspect of the invention, there is provided an assembled battery including: a conductive filler; a first cell comprising a flat first electrode tab made of aluminum or an aluminum alloy; a second cell comprising a flat second electrode tab formed of aluminum or an aluminum alloy. The second electrode tab is electrically connected to the first electrode tab through the conductive filler intervening between the first cell and the second cell and through weld surfaces of the first cell and the second cell which are at least partly welded to each other. | 02-05-2009 |
20090297946 | Soft Packaged And High Capacity Lithium Ion Battery And The Manufacture Method Of The Same - A soft packaged and high capacity lithium ion battery and the manufacture method of the same, wherein the said battery comprises a battery core sealed by a complex film of aluminum-plastic. The said battery core is laminated by positive electrode plates, negative electrode plates and separators alternatively. The said positive electrode plates and negative electrode plates are divided into coating area and uncoating area along the length direction. The uncoating area of the said plurality positive electrode plates extends from the one side of the said laminated structure and folds over the top surface of the laminated structure to form positive current collector. The uncoating area of the said plurality negative electrode plates also extends from the other side of the said laminated structure and folds over the top surface of the laminated structure to form negative current collector. A large area thin aluminum plate is used as positive and negative electrode tab to confirm sufficient contact with the positive and negative current collectors in the large area. Thus the battery inner resistance is reduced and the ability of charge and discharge in large current of the battery is improved. | 12-03-2009 |
20090305134 | Electrode Assembly Having Stable Lead-Tap Joint and Electrochemical Cell Containing Them - Disclosed herein is a stacking or stacking/folding type electrode assembly of a cathode/separator/anode structure, wherein the electrode assembly is constructed in a structure in which tabs (electrode tabs), having no active material applied thereto, protrude from electrode plates constituting the electrode assembly, electrode leads are located at one-side ends of the stacked electrode tabs such that the electrode leads are electrically connected to the electrode tabs, and the electrode leads, joined to the electrode tabs, have rounded ends. An electrochemical cell including the electrode assembly is also disclosed. | 12-10-2009 |
20090317717 | Electrode Assembly Having Tab-Lead Joint Portion of Minimized Resistance Difference Between Electrodes and Electrochemical Cell Containing The Same - Disclosed herein is a stacking or stacking/folding type electrode assembly of a cathode/separator/anode structure, wherein the electrode assembly is constructed in a structure in which tabs (electrode tabs), having no active material applied thereto, protrude from electrode plates constituting the electrode assembly, the electrode tabs are electrically connected to an electrode lead, and the pluralities of electrode tabs are joined to the top and the bottom of the electrode lead at an electrode lead-electrode tabs joint portion such that the resistance difference between electrodes at the electrode lead-electrode tabs joint portion is minimized. Also disclosed is an electrochemical cell including the electrode assembly. | 12-24-2009 |
20100003600 | SOLID-STATE STRUCTURE COMPRISING A BATTERY AND A VARIABLE RESISTOR OF WHICH THE RESISTANCE IS CONTROLLED BY VARIATION OF THE CONCENTRATION OF ACTIVE SPECIES IN ELECTRODES OF THE BATTERY - Presently, many variations of possible integrated resistors are utilized in IC design. However, depending on the electrical circuit it is often desirable that a resistor does not have a constant value, but rather that such a resistor has a variable controllable value. The invention relates to a solid-state variable resistor. The invention also relates to an electronic device, comprising such a solid-state variable resistor. The invention further relates to a method for producing a solid-state variable resistor. | 01-07-2010 |
20100021816 | Flexible Circuit Having an Integrally Formed Battery - A method and apparatus of forming a battery enabled flexible circuit. The invention includes forming a first insulating layer and positioning a battery on the first insulating layer, the battery having at least a first and a second terminal. A second insulating layer is then formed on the first insulating layer and the battery. The second insulating layer has vias that are in electrical contact with at least one of the first and the second terminals. | 01-28-2010 |
20100040950 | Negative Electrode for Hybrid Energy Storage Device - A negative electrode for a hybrid energy storage device includes a current collector; a corrosion-resistant conductive coating secured to at least one face of the current collector; a sheet comprising activated carbon adhered to the corrosion-resistant conductive coating; a tab portion extending from a side of the negative electrode; and a lug comprising a lead or lead alloy that encapsulates at least part of the tab portion. | 02-18-2010 |
20100081052 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE USED FOR SECONDARY BATTERY, AND METHOD OF MANUFACTURING ELECTRODE - A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H | 04-01-2010 |
20100086850 | SECONDARY BATTERY WITH TERMINAL PLATE - A secondary battery including: an electrode assembly including two electrode taps; and a cap assembly including a terminal plate. The terminal plate includes a tap connecting portion that is laser welded to one of the electrode taps. The tap connecting portion includes a curved portion that has an apex that extends along the length of the terminal plate, to which the one electrode tap is welded. | 04-08-2010 |
20100112438 | ENERGY CELL PACKAGE - An energy cell package includes an energy cell, a first metal substrate, a second metal substrate, at least one first jointing component, at least one second jointing component, and an insulating structure. The energy cell has at least one positive contact and at least one negative contact. The first metal substrate has an end functioning as an external positive contact. The second metal substrate has an end functioning as an external negative contact. The at least one first jointing component joints the at least one positive contact and the first metal substrate, and the at least one second jointing component joints the at least one negative contact and the second metal substrate. Except the external positive contact and external negative contact, the insulating structure coats the energy cell, first metal substrate, second metal substrate, at least one first jointing component, and at least one second jointing component. | 05-06-2010 |
20100167123 | SECONDARY BATTERY - A secondary battery including a pouch; an electrode assembly in the pouch, the electrode assembly comprising a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate; and a first electrode tab and a second electrode tab extending from the electrode assembly, wherein a portion of at least one of the first electrode tab or the second electrode tab protruding from the pouch is non-planar along its length. | 07-01-2010 |
20100178559 | NICKEL-COPPER CLAD TABS FOR RECHARGEABLE BATTERY ELECTRODES AND METHODS OF MANUFACTURING - The invention provides nickel-copper clad tabs for rechargeable battery negative electrodes and methods of manufacturing thereof. 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 a negative electrode tab may be clad with a nickel layer and a copper layer. | 07-15-2010 |
20100183921 | Battery - The invention relates to a battery, comprising at least one battery cell connecting element ( | 07-22-2010 |
20100190055 | BATTERY CELL CONNECTION METHOD AND APPARATUS - A battery module includes an electrochemical battery cell having a pair of cell tabs and conductive interconnecting members having one or more interconnect extensions. The cell tabs are welded to different interconnecting members to form welded joints, and each interconnect extension is hemmed with respect to the cell tabs to overlap and reinforce the welded joint. The welded joint can be ultrasonically-welded, while the interconnecting member can have a generally U-shaped profile with side walls formed integrally with the interconnect extensions. A method of minimizing effects of a shearing stress in the battery module includes fusing a cell tab or tabs to the interconnecting member to form a welded joint, and then hemming an interconnect extension of the interconnecting member to form a hem seam overlapping the cell tabs. Fusing can include ultrasonically welding the cell tabs to the side walls or other suitable means. | 07-29-2010 |
20100190056 | Battery Tab Structure - Cathode and anode structures for a battery each include one or more tabs welded to a substrate. A method of making a battery may include providing tabs welded to a substrate of each of a cathode and anode of the battery. Tabs for a cathode or anode structure may be provide from the same or similar material as the substrate of a corresponding cathode or anode. | 07-29-2010 |
20100216021 | ELECTRODE PLATE - An electrode plate (Ib) for a lead acid battery comprises an electrode material supported on a metal support in which the metal support comprises a body portion and a tab portion ( | 08-26-2010 |
20100233536 | SAFETY APPARATUS USING HIGH POWER BATTERY - Disclosed is a safety apparatus for responding to a battery short-circuit, and more particularly a safety apparatus for use in the event of a short-circuited of a high power battery, in which a PTC function is integrated into a tab of a high power battery. The safety apparatus for responding to a short-circuit of a high power battery comprises a casing, a battery part including a first electrode plate, a separator, and a second electrode plate arranged in that order and disposed inside the casing, a first tab connected to one of four edges of the first electrode plate via a first tab welding part and protruding from the casing, and a second tab connected to one of four edges of the second electrode plate via a second tab welding part and protruding from the casing, wherein a portion of the first tab ruptures when the first tab and the second tab are short-circuited, thus preventing the first electrode plate and the second electrode plate from being short-circuited. | 09-16-2010 |
20100248029 | METHODS OF WELDING BATTERY TERMINALS - A method of manufacturing a battery including: supplying a busbar having a U-shaped portion defining a channel and characterized by a bend corner at one end of the U-shaped portion, wherein the busbar has a reduced-reflectivity treatment at least in the vicinity of the bend corner; positioning a single battery terminal in the channel formed by the U-shaped portion so that the top end of the terminal is proximate to the bend corner; directing a laser beam at the bend corner of the U-shaped portion; and with the laser beam, melting the busbar at the bend corner and forming a metallurgical bond between the busbar and the top end of the single terminal. | 09-30-2010 |
20100248030 | ELECTRODE ASSEMBLY HAVING TAB-LEAD JOINT PORTION OF MINIMIZED RESISTANCE DIFFERENCE BETWEEN ELECTRODES AND ELECTROCHEMICAL CELL CONTAINING THE SAME - Disclosed herein is a stacking or stacking/folding type electrode assembly of a cathode/separator/anode structure, wherein the electrode assembly is constructed in a structure in which tabs (electrode tabs), having no active material applied thereto, protrude from electrode plates constituting the electrode assembly, the electrode tabs are electrically connected to an electrode lead, and the pluralities of electrode tabs are joined to the top and the bottom of the electrode lead at an electrode lead-electrode tabs joint portion such that the resistance difference between electrodes at the electrode lead-electrode tabs joint portion is minimized. Also disclosed is an electrochemical cell including the electrode assembly. | 09-30-2010 |
20110059359 | HIGH RATE CAPABILITY DESIGN OF LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery includes LiFePO | 03-10-2011 |
20110081574 | SECONDARY BATTERY AND METHOD OF FABRICATING SECONDARY BATTERY - An electrode assembly of a secondary battery and a method of fabricating the electrode assembly of the secondary battery. An electrode assembly of a secondary battery includes a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates, the first electrode plate including a first electrode collector and a first electrode tab coupled thereto, and the second electrode plate including a second electrode collector and a second electrode tab coupled thereto; and a protective member surrounding an end of one of the first and second electrode tabs, and a portion of the one of the first and second electrode tabs is exposed from the protective member and is coupled to a non-coating portion of a respective one of the first and second electrode plates. | 04-07-2011 |
20110104566 | Terminal unit for secondary battery and method of manufacturing the same - A terminal unit of a secondary battery and a method of manufacturing the same, the terminal unit including an electrode rivet, the electrode rivet being connected to an electrode assembly; a rivet terminal, the rivet terminal including a metal different from a metal of the electrode rivet; and a medium plate, the medium plate including a same metal as the electrode rivet, and being disposed between the electrode rivet and the rivet terminal so as to be overlap-weldable to the rivet terminal. | 05-05-2011 |
20110104567 | Rechargeable battery and method of manufacturing the same - A method of manufacturing a rechargeable battery includes continuously supplying a first electrode plate, the first electrode plate including a plurality of first active material portions with gaps therebetween on a first current collector, continuously supplying a first separator and a second separator to respective surfaces of the first electrode plate, bending the first electrode plate with the first and second separators to form a zigzag structure with bent portions, supplying a second electrode plate to an inside of each bent portion of the zigzag structure, the second electrode plate including a second active material portion on a second current collector, aligning and stacking the first electrode plate, the first separator, the second separator, and the second electrode plate, and taping the aligned and stacked first electrode plate, first separator, second separator, and second electrode plate at an outermost side thereof. | 05-05-2011 |
20110177389 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly and a secondary battery including the electrode assembly are disclosed. The electrode assembly includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. A film is disposed on at least one edge of at least one of the first and second electrodes. | 07-21-2011 |
20110195306 | NANOSCALE ION STORAGE MATERIALS INCLUDING CO-EXISTING PHASES OR SOLID SOLUTIONS - Nanoscale ion storage materials are provided that exhibit unique properties measurably distinct from their larger scale counterparts. For example, the nanoscale materials can exhibit increased electronic conductivity, improved electromechanical stability, increased rate of intercalation, and/or an extended range of solid solution. Useful nanoscale materials include alkaline transition metal phosphates, such as LiMPO | 08-11-2011 |
20110195307 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME - A nonaqueous electrolyte secondary battery includes a positive electrode ( | 08-11-2011 |
20110217591 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly according to an embodiment of the present invention comprises: at least one first electrode plate comprising a first electrode tab extending from the first electrode plate; at least one second electrode plate comprising a second electrode tab extending from the second electrode plate; at least one first intermediate electrode comprising a first intermediate electrode tab extending from the first intermediate electrode; at least one second intermediate electrode comprising a second intermediate electrode tab extending from the second intermediate electrode; and a separator disposed between the first electrode plate and the second electrode plate, and a separator disposed between the first intermediate electrode and the second intermediate electrode; wherein the first electrode plate is disposed at an outermost side in the electrode assembly with respect to the first intermediate electrode, and the second electrode plate is disposed at an outermost side in the electrode assembly with respect to the second intermediate electrode; and wherein the first electrode tab and the first intermediate electrode tab together constitute a first electrode lead, and the second electrode tab and the second intermediate electrode tab together constitute a second electrode lead. | 09-08-2011 |
20110223478 | SECONDARY BATTERY AND SECONDARY BATTERY MODULE USING THE SAME - A secondary battery includes a cell body having an electrode assembly disposed therein; and an electrode tab extending from each electrode of the electrode assembly to an outside of the cell body in a specified direction, and having at least one flexed part at an intermediate portion thereof. | 09-15-2011 |
20110244322 | CORE-SHELL TYPE ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, METHOD FOR PREPARING THE SAME AND LITHIUM SECONDARY BATTERIES COMPRISING THE SAME - Provided are a core-shell type anode active material for lithium secondary batteries including a carbonaceous material core; and a shell formed outside the carbonaceous material core, the shell including a PTC (Positive Temperature Coefficient) medium. The core-shell type anode active material for lithium secondary batteries has the shell including the PTC medium, and thus has the improved conductivity and high output density, exhibiting excellent electrical characteristics. And, a lithium secondary battery manufactured using the anode active material has excellent safety, in particular safety against overcharge and external short circuit. | 10-06-2011 |
20110244323 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME - A nonaqueous electrolyte secondary battery includes a positive electrode | 10-06-2011 |
20110244324 | LI-ION BATTERY CATHODE MATERIALS WITH OVER-DISCHARGE PROTECTION - A lithium-ion battery having over-discharge protection includes an anode comprising at least an electrochemically active anode material, said anode having an anode irreversible capacity loss during a first charge of the lithium-ion battery; and a cathode comprising at least an electrochemically active cathode material characterized by the formula: | 10-06-2011 |
20110244325 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR FABRICATING THE SAME - A nonaqueous electrolyte secondary battery includes a positive electrode ( | 10-06-2011 |
20110262806 | BATTERY PARTS HAVING RETAINING AND SEALING FEATURES, AND ASSOCIATED METHODS OF MANUFACTURE AND USE - Battery parts, such as battery terminals and bushings providing both top and front access for connection, and associated methods of manufacture and use are described herein. In one embodiment, a battery terminal can include one or more features for interlocking or engaging the adjacent battery container material to prevent or reduce separation between the battery part and the container material and prevent or reduce acid leakage. In one embodiment, the engagement feature can include raised, parallel lips, rims or flanges that extend upwardly along outer edges of a groove or channel formed in a surface of the battery part. The flanges can be deformed by a tool or otherwise so that they bend inwardly toward each other to at least partially close off the opening to the channel. When battery container material flows into the channel and hardens, it forms a bead or elongate bulb that interlocks and engages the battery part. | 10-27-2011 |
20110262807 | Carbon Nanotube Augmented Sulfur Cathode for an Elemental Sulfur Battery - An electrode for a battery is augmented with vertically aligned carbon nanotubes, allowing both improved storage density of lithium ions and the increase electrical and thermal conductivity. Carbon nanotubes are extremely good electrical and thermal conductors, and can be grown directly on the electrode (e.g., anode or cathode) current collector metals, allowing direct electrical contact. Additionally carbon nanotubes have an ideal aspect ratio, having lengths potentially thousands of times as long as their widths, 10 to 1,000 nanometers. In an embodiment, the carbon nanotube electrode (e.g., a cathode) comprises embedded elemental sulfur, allowing both the improved retention of elemental sulfur and increase electrical conductivity. The surface of carbon nanotubes are nearly chemically identical to carbon, binding the sulfur atoms to the carbon nanotubes, preventing the “loss” of sulfur with the formation of LiS intermediate products. | 10-27-2011 |
20110262808 | BATTERY GRID - A battery grid includes a frame that includes a top element, a bottom element, a first side element, and a second side element. The battery grid also includes a plurality of wires provided within the frame and defining a plurality of open areas and a current collection lug extending from the top element in a first direction. The battery grid further includes at least one feature provided in the battery grid that is configured to reduce the amount of growth of the battery grid in the first direction due to corrosion of the battery grid during the life of the battery grid. | 10-27-2011 |
20110262809 | NON-STOICHIOMETRIC TITANIUM COMPOUND, CARBON COMPOSITE OF THE SAME, MANUFACTURING METHOD OF THE COMPOUND, ACTIVE MATERIAL OF NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY CONTAINING THE COMPOUND, AND LITHIUM-ION SECONDARY BATTERY USING THE ACTIVE MATERIAL OF NEGATIVE ELECTRODE - Provided is a highly safe lithium-ion secondary battery with a gradual voltage decrease, high charge/discharge capacity, and ease of handling, in which explosion due to expansion, heat generation, ignition, and the like is prevented. | 10-27-2011 |
20110281160 | ALL-SOLID-STATE BATTERY AND MANUFACTURING METHOD THEREOF - An all-solid-state battery, and manufacturing method thereof. The all-solid-state battery has a plurality of laminated bodies including: a cathode layer; an anode layer; and a solid electrolyte layer sandwiched therebetween, when neighboring two laminated bodies are defined as a first and second laminated body, the solid electrolyte layer of the first and second laminated body being connected through an insulating layer, to a pair of side surfaces of the laminated plurality of the laminated bodies, a first current collector which is connected with the cathode layer but not connected with the anode layer and a second current collector which is connected with the anode layer but not connected with the cathode layer being arranged respectively, a plurality of insulating layers connected to the solid electrolyte layers being arranged between the cathode layer and the second current collector and between the anode layer and the first current collector. | 11-17-2011 |
20110281161 | LITHIUM SECONDARY BATTERY - The lithium secondary battery provided by the present invention includes an electrode provided with an insulating particle-containing layer ( | 11-17-2011 |
20110281162 | Negative Electrode for Hybrid Energy Storage Device - A negative electrode for a hybrid energy storage device includes a current collector; a corrosion-resistant conductive coating secured to at least one face of the current collector; a sheet comprising activated carbon adhered to the corrosion-resistant conductive coating; a tab portion extending from a side of the negative electrode; and a lug comprising a lead or lead alloy that encapsulates at least part of the tab portion. | 11-17-2011 |
20110287315 | CATHODE ACTIVE MATERIAL PROVIDING IMPROVED EFFICIENCY AND ENERGY DENSITY OF ELECTRODE - Provided is a cathode active material having a composition represented by the following Formula I: LiFe(P | 11-24-2011 |
20110294009 | POWER STORAGE DEVICE - An object is to provide a power storage device with high discharge capacity and high energy density. The power storage device includes a positive electrode in which a positive electrode active material is formed over a positive electrode current collector; and a negative electrode which faces the positive electrode with an electrolyte interposed therebetween. The positive electrode active material includes a film-form first region which includes a compound containing lithium and nickel; and a film-form second region which includes a compound containing lithium and one or more of iron, manganese, and cobalt, but not containing nickel. The first region is covered with the second region. Since a superficial portion of the positive electrode active material does not contain nickel, nickel is not in contact with an electrolyte solution; thus, generation of a catalyst effect of nickel can be suppressed, and a high discharge potential of nickel can be utilized. | 12-01-2011 |
20110294010 | POWER STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - It is an object to perform insertion and extraction of lithium ions effectively at a positive electrode of a power storage device so as to increase the reaction speed. Further, it is an object to increase the capacitance per unit volume of an active material of a positive electrode. A layer containing carbon and an active material layer are stacked at a positive electrode, whereby insertion and extraction of lithium ions are effectively performed at the positive electrode and reaction speed can be increased, even when the thickness of the positive electrode is increased. The active material layer interposed between the layers each containing carbon includes particulate crystals and therefore has high density, so that the active material can have large capacitance per unit volume. | 12-01-2011 |
20110300441 | POWER STORAGE DEVICE - A power storage device including a positive electrode in which a positive electrode active material is formed over a positive electrode current collector and a negative electrode which faces the positive electrode with an electrolyte interposed therebetween is provided. The positive electrode active material includes a first region which includes a compound containing lithium and one or more of manganese, cobalt, and nickel; and a second region which covers the first region and includes a compound containing lithium and iron. Since a superficial portion of the positive electrode active material includes the second region containing iron, an energy barrier when lithium is inserted into and extracted from the surface of the positive electrode active material can be decreased. | 12-08-2011 |
20110305949 | TRANSITION METAL OXIDENITRIDES - An electrode comprises a conductor and an electrode coating, said electrode coating comprising as electronically active material a transition metal (T) oxidenitride of formula Li | 12-15-2011 |
20110305950 | POWER STORAGE DEVICE - An electrode for a power storage device with less deterioration due to charge and discharge and a power storage device using the electrode are provided. In the electrode for a power storage device and the power storage device, a region including a metal element which functions as a catalyst is selectively provided over a current collector, and then, an active material layer is formed. By selectively providing the region including the metal element, a whisker can be effectively generated in the active material layer over the current collector, and the whisker generation region can be controlled. Accordingly, the discharge capacity can be increased and the cycle characteristics can be improved. | 12-15-2011 |
20110311867 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY - Disclosed is a negative electrode active material for a lithium ion secondary battery, which is capable of further improving the charge/discharge cycle characteristics. Also disclosed is a lithium ion secondary battery which uses the negative electrode active material for a lithium ion secondary battery. The negative electrode active material for a lithium ion secondary battery is composed of composite particles each of which has a core/shell structure configured of a core part that is formed from a polymer and a shell part that is formed of a metal layer. The metal layer of the shell part is formed by metal plating. Preferably, the metal layer comprises at least a metal layer (a1) that is formed by electroless plating and a metal layer (a2) that is formed by electrolytic plating, in this order from the core part side. | 12-22-2011 |
20110311868 | ACTIVE MATERIAL, ELECTRODE CONTAINING SAME, LITHIUM-ION SECONDARY BATTERY WITH THE ELECTRODE, AND METHOD OF MANUFACTURING ACTIVE MATERIAL - The method of manufacturing an active material in accordance with the first aspect of the invention yields an active material containing LiVOPO | 12-22-2011 |
20110311869 | POSITIVE ELECTRODE ACTIVE MATERIAL WITH HIGH CAPACITY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A high capacity lithium secondary battery includes a lithium manganese oxide having a layered structure exhibiting a great irreversible capacity in the event of overcharging at a high voltage and a spinel-based lithium manganese oxide. Because it is activated at a high voltage of 4.45 V or higher based on a positive electrode potential, additional lithium for utilizing a 3V range of the spinel-based lithium manganese oxide can be provided and an even profile in the entire SOC area can be obtained. Because the lithium secondary battery includes the mixed positive electrode active material including the spinel-based lithium manganese oxide and the lithium manganese oxide having a layered structure, and is charged at a high voltage, its stability can be improved. Also, the high capacity battery having a large available SOC area and improved stability without causing an output shortage due to a rapid voltage drop in the SOC area can be implemented. | 12-22-2011 |
20110318637 | LITHIUM SECONDARY BATTERY - An objective of the present invention is to provide a lithium secondary battery which can achieve a higher capacity and a longer life without reduction in a lower voltage in the battery. In the present invention, a compound represented by general formula (I) described below is used as a cathode active material, and a compound represented by general formula (II) described below is used as an anode active material; | 12-29-2011 |
20120003529 | ELECTRODE MATERIAL AND METHOD FOR FORMING ELECTRODE MATERIAL - An object is to provide an electrode material with high electrical conductivity and a power storage device using the electrode material. An object is to provide an electrode material with high capacity and a power storage device using the electrode material. Provided is a particulate electrode material including a core containing a compound represented by a general formula Li | 01-05-2012 |
20120003530 | MANUFACTURING METHOD OF POWER STORAGE DEVICE - It is an object to improve performance of a power storage device, such as cycle characteristics. A power storage device includes a current collector and a crystalline semiconductor layer including a whisker, which is formed on and in close contact with the current collector. Separation of the crystalline semiconductor layer is suppressed by an increase of adhesion, whereby cycle characteristics in which a specific capacity of a tenth cycle number with respect to a first cycle number is greater than or equal to 90% is realized. In addition, cycle characteristics in which a specific capacity of a hundredth cycle number with respect to a first cycle number is greater than or equal to 70% is realized. | 01-05-2012 |
20120003531 | LITHIUM-ION BATTERY - A lithium-ion battery includes a positive electrode having a current collector and a first active material and a negative electrode comprising a current collector, a second active material, and a third active material. The second active material comprises a lithium titanate material and the third active material comprises a sulfide. The third active material exhibits charging and discharging capacity below a corrosion potential of the current collector of the negative electrode and above a decomposition potential of the first active material. | 01-05-2012 |
20120009470 | LITHIUM SECONDARY BATTERY AND CATHODE OF THE LITHIUM SECONDARY BATTERY - To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode active material layer formed of a sintered lithium composite oxide sheet. The cathode active material layer is bonded to the cathode collector by the mediation of a conductive bonding layer. A characteristic feature of the present invention resides in that the cathode active material layer has a thickness of 30 μm or more, a mean pore size of 0.1 to 5 μm, and a voidage of 3% or more and less than 15%. | 01-12-2012 |
20120009471 | LITHIUM SECONDARY BATTERY AND CATHODE OF THE LITHIUM SECONDARY BATTERY - To provide a lithium secondary battery which has high capacity while maintaining excellent cycle characteristic. The lithium secondary battery cathode of the present invention includes a cathode collector formed of a conductive substance, and a cathode active material layer formed of a sintered lithium composite oxide sheet. The cathode active material layer is bonded to the cathode collector by the mediation of a conductive bonding layer. A characteristic feature of the present invention resides in that the cathode active material layer has a thickness of 30 μm or more, a voidage of 3 to 30%, and an open pore ratio of 70% or higher. | 01-12-2012 |
20120009472 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A negative electrode for a nonaqueous electrolyte secondary battery includes a negative-electrode current collector, a first negative-electrode active material layer, and a second negative-electrode active material layer. The first negative-electrode active material layer is formed on the negative-electrode current collector. The first negative-electrode active material layer contains graphite as a first negative-electrode active material. The second negative-electrode active material layer is formed on the first negative-electrode active material layer. The second negative-electrode active material layer contains a lithium titanate composite oxide as a second negative-electrode active material. | 01-12-2012 |
20120021280 | COMPOSITE ELECTRODE AND ELECTRONIC DEVICE INCLUDING THE SAME - A composite electrode includes a plate-shaped conductor; a plurality of auxiliary electrodes disposed such that ends of the plurality of auxiliary electrodes are connected to a surface of the plate-shaped conductor and the plurality of auxiliary electrodes extend from the surface of the plate-shaped conductor; and an active material layer formed between the plurality of auxiliary electrodes so as to be in contact with the plate-shaped conductor. When the height of the plurality of auxiliary electrodes is defined as h, the center-to-center spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes or the spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes is h or more and 2h or less. | 01-26-2012 |
20120021281 | CURRENT CARRIER FOR AN ENERGY STORAGE DEVICE - A current collector plate for an energy storage device comprising a first current collector, a bonding layer connected to the first current collector; and, at least one current carrier disposed at least partially between the first current collector and the bonding layer. | 01-26-2012 |
20120021282 | POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - A positive electrode for a nonaqueous electrolyte secondary battery, which has excellent nonaqueous electrolyte permeability, a nonaqueous electrolyte secondary battery including the positive electrode, and a method for producing the same. A positive electrode for a nonaqueous electrolyte secondary battery includes a positive electrode current collector, and a positive electrode active material layer. The positive electrode active material layer is formed on the positive electrode current collector and contains a positive electrode active material, a binder, and an acid anhydride. | 01-26-2012 |
20120028114 | ELECTRODE COMPOSITE MATERIAL, METHOD FOR MAKING THE SAME, AND LITHIUM ION BATTERY USING THE SAME - A cathode composite material includes a cathode active material particle having a surface, and a continuous aluminum phosphate layer coated on the surface of the cathode active material particle. A material of the cathode active material particle is spinel type lithium manganese oxide. The present disclosure also relates to a lithium ion battery and a method for making the cathode composite material. | 02-02-2012 |
20120028115 | ELECTRODE COMPOSITE MATERIAL, METHOD FOR MAKING THE SAME, AND LITHIUM ION BATTERY USING THE SAME - A cathode composite material includes a cathode active material particle having a surface, and a continuous aluminum phosphate layer coated on the surface of the cathode active material particle. A material of the cathode active material particle is layered type lithium nickel oxide. The present disclosure also relates to a lithium ion battery and a method for making the cathode composite material. | 02-02-2012 |
20120028116 | COMPOSITION FOR PRODUCING POSITIVE ELECTRODE FOR ELECTRICITY STORAGE DEVICE, POSITIVE ELECTRODE FOR ELECTRICITY STORAGE DEVICE MADE WITH SAID COMPOSITION, AND ELECTRICITY STORAGE DEVICE COMPRISING SAME - This invention relates to a composition for producing a cathode for an electricity storage device, including carbon nanofibers prepared by electrospinning a spinning solution including a cathode active material, a conductive material and a carbon fiber precursor; and a binder, and to a cathode for an electricity storage device made with the composition and to an electricity storage device including the cathode. The composition for producing a cathode includes carbon nanofibers instead of part or all of a conductive material, a dispersant and/or a binder, so that the cathode has remarkably increased specific surface area and electrical conductivity (decreased resistance), thus maximizing the efficiency of the cathode active material and the capacity. | 02-02-2012 |
20120028117 | FLUORINATED BINDER COMPOSITE MATERIALS AND CARBON NANOTUBES FOR POSITIVE ELECTRODES FOR LITHIUM BATTERIES - The present invention relates to a positive electrode composite material for Li-ion battery, to the preparation method thereof, and to the use thereof in a Li-ion battery. The composite material according to the invention includes: a) at least one conductive additive including carbon nanotubes at a content between 1 and 2.5 wt %, preferably between 1.5 and 2.2 wt %, relative to the total weight of the composite material; b) an active electrode material capable of reversibly forming an insertion compound with lithium, having an electrochemical potential greater than 2V relative to the Li/Li | 02-02-2012 |
20120034521 | CURRENT COLLECTOR FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - A current collector for a secondary battery ( | 02-09-2012 |
20120040242 | ANODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, ELECTRIC TOOL, BATTERY CAR, AND ELECTRIC POWER STORAGE SYSTEM - A lithium ion secondary battery having more superior cycle characteristics is provided. The lithium ion secondary battery includes a cathode, an anode, and an electrolyte. The anode has an anode active material layer in which a first layer containing silicon as an anode active material, and a second layer containing silicon and a metal element as an anode active material are alternately layered on an anode current collector. At least one of a lamellar oxide-containing region and a lamellar nitrogen-containing region is inserted in at least one of the first layer and the second layer. | 02-16-2012 |
20120040243 | ELECTRODE FORMATION FROM A POWDERED MIXTURE - Particles of active electrode material, such as a fibrillized mixture of carbon, and binder are deposited onto a surface of a current collector sheet. The current collector sheet and the particles are processed in a high-pressure nip, such as a calender. As a result of the high-pressure processing, a film of active electrode material is formed on and bonded to the surface of the current collector sheet. The process is then repeated to form a second film on the second surface of the current collector sheet. In an embodiment, the particles are applied to both surfaces of the current collector sheet at the same time, followed by a pass through a calender. The current collector sheet with the bonded films is shaped into electrodes suitable for use in various electrical devices, including double layer capacitors. | 02-16-2012 |
20120040244 | ANODE COMPOSITION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME - An anode composition for a lithium secondary battery includes an anode active material, a binder, and a conductive material. The active material includes a plurality of anode active material particles, each of which includes a core made of metal or metalloid allowing alloying or dealloying with lithium, or a compound containing the metal or metalloid; and a shell formed at an outer portion of the core and having Ketjen black. The conductive material includes carbon nano fiber. The anode composition uses a metal-based anode active material that may controls the volume expansion, and also uses conductive material with excellent dispersion so that the life characteristic of the battery may be improved. | 02-16-2012 |
20120040245 | ELECTRODE COMPOSITIONS AND METHODS - Provided is an electrode composition comprising an active material that includes cobalt, tin, and carbon along with methods of making and using the same. Also provided are electrodes that include the provided electrode compositions, electrochemical cells that include the provided electrodes, and battery packs that include at least one of the provided electrochemical cells. In some embodiments, the composition also includes iron. | 02-16-2012 |
20120045690 | HIGH MANGANESE POLYCRYSTALLINE ANODE MATERIAL, PREPARATION METHOD THEREOF AND DYNAMIC LITHIUM ION BATTERY - Provided are a high manganese polycrystalline anode material, preparation method thereof and dynamic lithium ion battery. The general formula of the high manganese polycrystalline anode material is LiwMnx(CoNi)yOz, wherein x=0.4-2.0, y=0.1-0.6, x+y<2, z≧2, and w≧1. The weight of Mn is not less than 40% of the weight of LiwMnx(CoNi)yOz, and the particle size thereof is 7-20 microns. The high manganese polycrystalline anode material has more than two lattice structures selected from LiMn | 02-23-2012 |
20120045691 | CARBON NANOTUBE BASED ELECTRODE MATERIALS FOR HIGH PERFORMANCE BATTERIES - Improved battery materials, and a process for producing such improved battery materials are disclosed. The materials and methods employ battery components based on porous lightweight non woven substrate materials that are coated with dispersions comprised of carbon nanotubes, conductive secondary particles (usually with an approximate diameter between about 0.5 nm to 100 microns), a binder and a solvent. The dispersions permeate the substrate's pores, and when cured, the carbon nanotubes form conductive bridges between the conductive secondary particles, and these in turn are held on the substrate by the binder. The net effect is to increase the battery's total active material and energy density. The permeated substrate may then be further treated to achieve the desired conductivity as needed. These materials and methods can produce improved lead acid and silver zinc batteries, as well as other types of batteries. | 02-23-2012 |
20120058394 | BATTERY GRID - A grid network for a battery plate is provided. The grid network includes a plurality of spaced apart grid wire elements, each grid wire element having opposed ends joined to one of a plurality of nodes. Each node includes the juncture of one of the opposed ends of a plurality of the grid wire elements to define a plurality of open spaces in the grid network. At least one of the grid wire elements has a first transverse cross-section intermediate its opposed ends that is a different shape than a second transverse cross-section at at least one of the grid wire element's opposed ends. | 03-08-2012 |
20120064402 | LEAD-ACID BATTERY AND METHOD FOR MANUFACTURING CURRENT COLLECTOR FOR LEAD-ACID BATTERY - Provided herein is a lead-acid battery for which the risk of breakage of a current collecting lug part of a plate while in use is eliminated by simple means. At least a positive plate group of the lead-acid battery includes: one or more plates each including a current collector having a current collecting portion formed by expanding or punching a lead alloy sheet manufactured by cold rolling, and one or more current collecting lug parts unitarily formed with the current collecting portion; and a strap formed by a cast-on strap casting method and coupled to the one or more current collecting lug parts. The current collecting lug part is formed with an elongated protrusion extending in a direction away from the current collecting portion. The elongated protrusion continuously extends in a direction toward the current collecting portion of the plate from inside the strap. | 03-15-2012 |
20120064403 | NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - A mixed carbon material is useful for an electrode of a nonaqueous secondary battery. The material has two component materials: carbon material A and carbon material B. Both materials have high capacity and rapid charge-discharge characteristics. Carbon material A, a multilayer-structure material containing an amorphous carbon covering the surface of a graphitic particle, has particularly excellent charging-discharging properties. Carbon material B has particularly excellent electrical conductivity properties. A battery with an electrode having the mixed carbon material can have both rapid charge-discharge characteristics and high cycle characteristics. | 03-15-2012 |
20120064404 | BATTERIES UTILIZING CATHODE COATINGS DIRECTLY ON NANOPOROUS SEPARATORS - Provided is a separator/cathode assembly for use in an electric current producing cell, wherein the assembly comprises a cathode current collector layer interposed between a first cathode layer and a second cathode layer and a porous separator layer on the side of the first cathode layer opposite to the cathode current collector layer, wherein the first cathode layer is coated directly on the separator layer. Also provided are methods of preparing such separator/cathode assemblies. | 03-15-2012 |
20120070732 | NEGATIVE ACTIVE MATERIAL FOR SECONDARY BATTERY, AND ELECTRODE AND SECONDARY BATTERY INCLUDING THE SAME - A negative active material for a secondary battery includes a core carbon material, and a carbide layer formed on at least a portion of an edge of the core carbon material, and has a specific surface area ratio of 1.6 or less and a sphericity ratio of 0.6 or more when the negative active material is compressed with a pressure of 1.3 ton per 1 cm | 03-22-2012 |
20120070733 | CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERY - To provide a negative electrode material capable of giving a lithium ion secondary battery that is sufficiently small in the charge/discharge irreversible capacity observed at the initial cycle stage, has excellent high-temperature storage characteristics, and reduced in the gas generation at the initial cycle stage as well as during high-temperature storage. | 03-22-2012 |
20120070734 | LITHIUM SECONDARY BATTERY AND ANODE THEREFOR - The present invention provides an anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a laminar structure without an opening, the active material layer has a network structure with an opening, and the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle. The anode of the present invention can achieve charge-discharge-cycle property superior to that of the prior art. | 03-22-2012 |
20120070735 | METHOD FOR PRODUCING POROUS METAL BODY, POROUS ALUMINUM BODY, BATTERY ELECTRODE MATERIAL INCLUDING POROUS METAL BODY OR POROUS ALUMINUM BODY, AND ELECTRODE MATERIAL FOR ELECTRICAL DOUBLE LAYER CAPACITOR - A porous metal body containing continuous pores and having a low oxygen content is provided by decomposing a porous resin body that contains continuous pores and has a layer of a metal thereon by heating the porous resin body at a temperature equal to or less than the melting point of the metal while the porous resin body is immersed in a first molten salt and a negative potential is applied to the metal layer; and a method for producing the porous metal body is provided. | 03-22-2012 |
20120070736 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND BATTERY USING SAME - There is provided a negative electrode for a lithium-ion secondary battery, including a conductive substrate, a negative electrode active material layer containing a negative electrode active material capable of absorbing and desorbing lithium ions and a conductive member having a lower elastic modulus than that of the conductive substrate, wherein at least part of the negative electrode active material is connected to the conductive substrate via the conductive member. There is also provided a lithium-ion secondary battery with such a negative electrode. | 03-22-2012 |
20120077083 | ELECTRODE MIX, ELECTRODE MIX PASTE, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - An electrode mixture containing a particulate electrode active material, an electrically conductive material and a binder, wherein the electrode active material comprises a particulate core material and a coating material adhering in the form of particles or a layer to the surface of the core material, the core material is obtained by a method comprising a step of coprecipitating two or more transition metal elements, and the binder comprises a water-soluble macromolecule or a water-dispersible macromolecule or both. An electrode comprising the electrode mixture and an electrode collector. An electrode mixture paste containing the electrode mixture and water. A nonaqueous electrolyte secondary battery comprising a positive electrode, a negative electrode and an electrolyte, wherein the positive electrode is the electrode. | 03-29-2012 |
20120082891 | SECONDARY BATTERY - Disclosed are a secondary battery including an electrode assembly which includes a first electrode plate and a second electrode plate arranged as a stack, and a separator interposed between the first electrode plate and the second electrode plate, the first electrode plate including a first active material coating part formed by coating a base with a first active material and a first non-coating part, the second electrode plate including the second active material coating part formed by coating a base with a second active material and a second non-coating part, and the first non-coating part including an insulating member in a portion corresponding to the second electrode plate. | 04-05-2012 |
20120082892 | LITHIUM SECONDARY BATTERY - A lithium secondary battery has a positive electrode, a separator, and a negative electrode having a negative electrode current collector and a negative electrode mixture layer formed on a surface of the negative electrode current collector. The negative electrode mixture layer contains a negative electrode active material including a metal element capable of alloying with lithium. The negative electrode current collector includes a substrate made of a Cu—Fe—P alloy foil, and a surface layer provided on both surfaces of the substrate and made of pure copper. The surface layer has a Vickers hardness of 120 and less than that of the substrate. The negative electrode current collector has a proof stress of 308 MPa. | 04-05-2012 |
20120088150 | Electrode for lithium secondary battery and lithium secondary battery including the same - An electrode for a lithium secondary battery and a lithium secondary battery including the same, the electrode including a polyamide imide (PAI)-based binder, wherein a 1,3-benzenediamine peak is not observed when a composition including components extracted from the electrode by a solvent capable of dissolving the polyamideimide (PAI)-based binder is analyzed with pyrolysis-gas chromatography (Py-GC) under conditions of a pyrolysis temperature of about 750 to about 780° C., a pyrolysis time of about 5 seconds to about 15 seconds, and increasing a gas chromatography oven temperature from about 40° C. to about 300° C. at a rate of about 10° C./min. | 04-12-2012 |
20120088151 | POSITIVE-ELECTRODE ACTIVE MATERIAL AND POWER STORAGE DEVICE - A positive-electrode active material with improved electrical conductivity, and a power storage device using the material are provided. A positive-electrode active material with large capacity, and a power storage device using the material are provided. A core including lithium metal oxide is used as a core of a main material of the positive-electrode active material, and one to ten pieces of graphene is used as a covering layer for the core. A hole is provided for graphene, whereby transmission of a lithium ion is facilitated, resulting in improvement of use efficiency of current. | 04-12-2012 |
20120088152 | ELECTRODE PLATE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - An electrode plate for a non-aqueous electrolyte secondary battery includes a current collector, and an electrode active material layer formed on at least part of the surface of the current collector. The electrode active material layer contains a particulate electrode active material, a binding material, and carbonic matter distinct from conductive materials. The binding material is a crystalline metal oxide that does not cause alkaline metal ion intercalation and deintercalation reactions. | 04-12-2012 |
20120088153 | METHOD FOR PRODUCING ALUMINUM FOIL - An object of the present invention is to provide a method for producing a high-ductility, high-purity aluminum foil at a high film formation rate by electrolysis using a plating solution having a low chlorine concentration. A method for producing an aluminum foil of the present invention as a means for achieving the object is characterized in that an aluminum film is formed on a surface of a substrate by electrolysis using a plating solution at least containing (1) a dialkyl sulfone, (2) an aluminum halide, and (3) at least one nitrogen-containing compound selected from the group consisting of an ammonium halide, a hydrogen halide salt of a primary amine, a hydrogen halide salt of a secondary amine, a hydrogen halide salt of a tertiary amine, and a quaternary ammonium salt represented by a general formula: R | 04-12-2012 |
20120094176 | Power-Optimized And Energy-Density-Optimized Flat Electrodes For Electrochemcal Energy Stores - The invention relates to an electrode layer composite for forming planar electrodes ( | 04-19-2012 |
20120094177 | POSITIVE ELECTRODE FOR LITHIUM ION BATTERTY, FABRICATION METHOD THEREOF, AND LITHIUM ION BATTERY USING THE SAME - An object of the present invention is to provide: a positive electrode including a lithium-containing nickel oxide which serves as a positive electrode active material and having excellent input/output characteristics, durability, and reliability; and a lithium ion battery which uses this positive electrode. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer formed on the surface of the positive electrode current collector. The positive electrode active material layer includes: a lithium-containing nickel oxide represented by the general formula (1): Li | 04-19-2012 |
20120107683 | COMPOSITES OF SELF-ASSEMBLED ELECTRODE ACTIVE MATERIAL-CARBON NANOTUBE, FABRICATION METHOD THEREOF AND SECONDARY BATTERY COMPRISING THE SAME - A composite of electrode active material including aggregates formed by self-assembly of electrode active material nanoparticles and carbon nanotubes, and a fabrication method thereof are disclosed. This composite is in the form of a network in which at least some of the carbon nanotubes connect two or more aggregates that are not directly contacting each other, creating an entangled structure in which a plurality of aggregates and a plurality of carbon nanotube strands are intertwined. Due to the highly conductive properties of the carbon nanotubes in this composite, charge carriers can be rapidly transferred between the self-assembled aggregates. This composite may be prepared by preparing a dispersion in which the nanoparticles and/or carbon nanotubes are dispersed without any organic binders, simultaneously spraying the nanoparticles and the carbon nanotubes on a current collector through electrospray, and then subjecting the composite material formed on the current collector to a heat treatment. | 05-03-2012 |
20120107684 | NEGATIVE ELECTRODE FOR LITHIUM-ION BATTERY, PRODUCTION METHOD THEREFOR, AND LITHIUM-ION BATTERY - A negative electrode for a lithium ion battery | 05-03-2012 |
20120115029 | BATTERIES UTILIZING ELECTRODE COATINGS DIRECTLY ON NANOPOROUS SEPARATORS - Provided are lithium batteries utilizing electrode coatings directly on nanoporous separators, the batteries comprising (a) a separator/cathode assembly, (b) a separator/anode assembly, and (c) an electrolyte, where the batteries comprise alternating layers of the separator/cathode assembly and the separator/anode assembly. Preferably, a portion of the separator/cathode assembly is not in contact with the separator/anode assembly and a portion of the separator/anode assembly is not in contact with the separator/cathode assembly, and electrically conductive edge connections are made through these portions. Also provided are methods of preparing such lithium batteries. | 05-10-2012 |
20120115030 | Electrode for electricity-storing device, electricity-storing device employing such electrode, and method of manufacturing electrode for electricity-storing device - An electricity-storing device electrode comprises a current collector foil, an active material layer formed on a surface of the current collector foil, and a high-resistance layer formed on the surface of the current collector foil so as to be adjacent to and in direct contact with the active material layer. At least a portion of the interface between the active material layer and the high-resistance layer, mixed phase is formed where constituents from the two layers intermingle. Presence of the mixed phase at the interface between the active material layer and the high-resistance layer improves the bond between the two adjacent layers. During manufacture and use, there is therefore reduced tendency to experience delamination or loss of the active material layer, the high-resistance layer, and/or other layer(s), such as layer(s) provided for short circuit prevention. | 05-10-2012 |
20120121980 | ALKALINE STORAGE BATTERY ELECTRODE AND ALKALINE STORAGE BATTERY - An alkaline storage battery electrode includes a conductive core member as a current collector. A plurality of through holes are formed in the core member so as to be arranged linearly in parallel with a longitudinal direction of the core member. Each of the through holes has a substantially rectangular shape. The through holes are arranged so as to be shifted in the longitudinal direction of the core member at each of lines of the linearly-arranged through holes. A displacement amount between the through holes of adjacent lines in a width direction is less than a half of a sum of a size of the through hole in the longitudinal direction of the core member and a distance between the adjacent through holes in the longitudinal direction of the core member. | 05-17-2012 |
20120129047 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery comprising electrodes including a positive electrode and a negative electrode, a separator positioned between the electrodes, and a non-aqueous electrolyte, wherein the electrodes have a collector carrying an active substance material, and the collector of at least one of the positive electrode and the negative electrode is a three-dimensional structure formed of a resin fiber covered with a metal film. | 05-24-2012 |
20120135303 | CORE-SHELL TYPE ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - The present invention relates to a core-shell type anode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery according to the present invention comprises a carbon based material core portion; and a shell portion formed outside of the carbon based material core portion by coating the carbon based material core portion with a spinel-type lithium titanium oxide. The anode active material for a lithium secondary battery according to the present invention has the metal oxide shell portion, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics. | 05-31-2012 |
20120135304 | BATTERY ELECTRODE PRODUCTION METHOD - According to the present invention, formation of a compound material layer is carried out by a method that includes a step of forming a binder solution layer | 05-31-2012 |
20120135305 | Positive Active Material for Rechargeable Lithium Battery, Method of Preparing the Same, and Rechargeable Lithium Battery Including the Same - A positive active material of a positive electrode of a rechargeable lithium battery, the positive active material includes a core and a composite surrounding a surface of the core and including a phosphate-based compound and a carbon-based compound. The core being a nickel-based oxide having the chemical formula Li | 05-31-2012 |
20120135306 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A negative electrode for a non-aqueous electrolyte secondary battery of the invention includes: a sheet-like current collector with a plurality of through-holes; a carbon layer formed on a surface of and in the through holes of the current collector; and a mixture layer formed on a surface of the carbon layer. The mixture layer includes an active material and a conductive agent, and the active material includes a lithium-titanium containing composite oxide with a spinel crystal structure. The current collector has a void ratio of 20 to 60%. The carbon layer has an average density of 0.05 to 0.4 g/cm | 05-31-2012 |
20120141871 | NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE - A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li | 06-07-2012 |
20120148916 | METHOD FOR EVALUATING POSITIVE ELECTRODE ACTIVE MATERIAL - Provided is a method for evaluating a positive electrode active material. The method evaluates the performance of a positive electrode active material comprising a lithium transition metal oxide that contains a manganese-containing transition metal oxide. In this method, the lithium penetration rate into a transition metal site in the lithium transition metal oxide is evaluated based on the intensity ratio P between a first-neighbor Mn—O peak intensity A and a second-neighbor Mn-M peak intensity B in a radial distribution function obtained from EXAFS at the K absorption edge of manganese (Mn). Moreover, the ratio of excess lithium present in the positive electrode active material may also be evaluated based on the excess amount of added lithium Q contained in excess of the stoichiometric ratio of the lithium transition metal oxide and the intensity ratio P. | 06-14-2012 |
20120148917 | AQUEOUS COATING LIQUID FOR AN ELECTRODE PLATE, ELECTRODE PLATE FOR AN ELECTRICAL STORAGE DEVICE, METHOD FOR MANUFACTURING AN ELECTRODE PLATE FOR AN ELECTRICAL STORAGE DEVICE, AND ELECTRICAL STORAGE DEVICE - A water-based coating formulation for an electrode plate of an electricity storage device, said water-based coating formulation being adapted to form a coating film layer on the electrode plate, contains at least one resin binder having a saponification degree of 40% or higher and selected from unmodified and modified polyvinyl alcohols and unmodified and modified ethylene-vinyl alcohol copolymers, a conductive material, and a specific polybasic acid or its acid anhydride in a water-based medium containing water as a polar solvent. Per parts by mass of the conductive material (2), the resin binder is from 0.1 to 3 parts by mass and the polybasic acid or the like is from 0.01 to 6 parts by mass. The coating formulation has a solids content of from 0.02 mass % to 40 mass %. | 06-14-2012 |
20120148918 | ANODE OF CABLE-TYPE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - Provided is a method for manufacturing an anode of a cable-type secondary battery having a solid electrolyte layer, including preparing an aqueous solution of an anode active material, making an anode by immersing a core as a current collector having a horizontal cross section of a predetermined shape and extending longitudinally in the aqueous solution, then applying an electric current to form a porous shell of the anode active material on the surface of the core, and forming a solid electrolyte layer on the surface of the anode by passing the anode through a solid electrolyte solution. The anode has a high contact area to increase the mobility of lithium ions, thereby improving battery performance. Also, the anode is capable of relieving stress and pressure in the battery, such as volume expansion during charging and discharging, thereby preventing battery deformation and ensuring battery stability. | 06-14-2012 |
20120156560 | POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided is a positive electrode active material. The positive electrode active material includes: a small-diameter active material having an average particle diameter of about 0.5 μm and a maximum particle diameter of less than about 1 μm; and a large-diameter active material having an average particle diameter of about 5 μm to about 20 μm and a maximum particle diameter of less than about 100 μm. | 06-21-2012 |
20120156561 | Welded Construction and Resistance Welding Method - A welded construction according to the present invention has a first metallic member, on one surface of which a projecting portion is formed and on the other surface of which a depressed portion corresponding to the projecting portion is formed, and a second metallic member are welded together at a welded portion which includes a summit portion of the projecting portion; wherein, on at least one of the first metallic member and the second metallic member, on its opposite surface to its surface that faces the other one of the metallic members, a recessed portion is formed that is recessed from its peripheral region towards a region which corresponds to the welded portion. | 06-21-2012 |
20120156562 | WATER-BASED SLURRY COMPOSITION, ELECTRODE PLATE FOR ELECTRICITY STORAGE DEVICE, AND ELECTRICITY STORAGE DEVICE - A water-based slurry composition contains (1) a water-based medium containing at least water as a polar solvent, (2) at least one polymer selected from cellulose derivatives, alginic acid derivatives, starch derivatives, chitin derivatives, chitosan derivatives, polyallylamine and polyvinylamine, (3) a hydrophobic filler, and (4) a polybasic acid or a derivative thereof. The composition has a water content of 30 mass % or higher. An electrode plate for an electricity storage device, and the electricity storage device are also disclosed. | 06-21-2012 |
20120156563 | AQUEOUS CARBON FILLER DISPERSION COATING LIQUID, CONDUCTIVITY-IMPARTING MATERIAL, ELECTRODE PLATE FOR AN ELECTRICAL STORAGE DEVICE, MANUFACTURING METHOD THEREFORE, AND ELECTRICAL STORAGE DEVICE - A water-based, carbon filler-dispersed coating formulation for forming a conductive coating film contains (1) a hydroxyalkyl chitosan as a resin binder, (2) a conductive carbon filler, and (3) a polybasic acid or its derivative in a water-based medium containing at least water as a polar solvent. In 100 parts by mass of the coating formulation, the hydroxyalkyl chitosan (1) is contained in a range of from 0.1 to 20 parts by mass, and the conductive carbon filler (2) is contained in a range of from 1 to 30 parts by mass. An electricity-imparting material, an electrode plate for an electricity storage device, a process for producing the electrode plate, and the electricity storage device are also disclosed. | 06-21-2012 |
20120156564 | COMPOSITE MATERIAL TAPE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME - A composite material tape and a lithium secondary battery using the same are provided. The composite material tape includes an organic base and at least one inorganic element dispersed within the organic base. The composite material tapes of the present invention exhibit improved Insulative and heat-resistant characteristics. | 06-21-2012 |
20120164528 | Composite anode with an interfacial film and lithium secondary battery employing the same - A composite anode for lithium secondary battery which has an active anode material layer formed on a conductive substrate and an interfacial film coated on the active anode material layer, wherein the active anode material layer includes carbonaceous materials, other active and inactive materials, and a binder. The anode increases degree of the anode active material utilization and the cycle life and characteristic and capacity of the battery can be improved. | 06-28-2012 |
20120164529 | Electrode For Lithium Ion Batteries - An electrode for lithium ion batteries, the electrode having a metal film which is inert to lithium ions and having a plurality of silicon nanowires protruding from the film, which are arranged on at least one flat side of the film, wherein sections of the nanowires are enclosed by the metal film. | 06-28-2012 |
20120164530 | NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An object of the invention is to provide a negative electrode capable of improving the large current characteristics of a nonaqueous electrolyte secondary battery while maintaining the battery capacity. A negative electrode includes a sheet-like current collector and a negative electrode mixture layer disposed on a surface of the current collector. The negative electrode mixture layer includes graphite particles and ceramic particles interposed between the graphite particles. The mean particle size of the ceramic particles is smaller than that of the graphite particles. In an X-ray diffraction pattern of the negative electrode mixture layer, the ratio R of the intensity I | 06-28-2012 |
20120171568 | PRISMATIC BATTERY CELL WELDING - A prismatic battery cell is provided. The prismatic battery cell includes a plurality of electrode films conducting electricity in the prismatic battery cell, a terminal welded to the plurality of electrodes, and a buffer film welded to the plurality of electrodes, the plurality of electrodes interposing the terminal and the buffer film. | 07-05-2012 |
20120177990 | ELECTRODE PLATE, SECONDARY BATTERY, AND METHOD FOR PRODUCING THE ELECTRODE PLATE - An electrode plate includes a current collector plate and an active material layer formed thereon. The active material layer includes, as a binder, a plurality of binders having different glass transition points (Tg) from each other. A ratio (A | 07-12-2012 |
20120177991 | ELECTROCHEMICAL DEVICE AND BINDER COMPOSITION - The invention relates to an electrochemical device having a positive electrode and a negative electrode, wherein at least either of the positive electrode and the negative electrode has a current collector and an electrode layer having an electrode active material and a binder containing a polymer having a constituent unit derived from an amide group-containing monomer and a constituent unit derived from (meth)acrylic acid, such that: (i) the polymer has a swelling rate of 120 to 600% when immersed for 24 hours at 80° C. in a solution containing ethylene carbonate, diethyl carbonate, ethyl methyl carbonate and lithium hexafluorophosphate; or (ii) the polymer has a swelling rate of 110 to 300% when immersed for 24 hours at 80° C. in a solution containing propylene carbonate and methyl triethyl ammonium tetrafluoroborate. | 07-12-2012 |
20120177992 | NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND MANUFACTURING PROCESS FOR THE SAME - To provide a negative electrode for lithium-ion secondary battery, negative electrode which has good cyclability by suppressing the active material from coming off or falling down from the current collector, and a manufacturing process for the same. | 07-12-2012 |
20120183848 | BINDER FOR SECONDARY BATTERY EXHIBITING EXCELLENT ADHESION FORCE - Provided is a binder for secondary battery electrodes comprising polymer particles obtained by polymerizing (a) a (meth)acrylic acid ester monomer; (b) at least one monomer selected from the group consisting of an acrylate monomer, a vinyl monomer and a nitrile monomer; and (c) a (meth)acrylamide monomer and an unsaturated monocarbonic acid monomer, with two or more cross-linking agents with different molecular weights. Based on the combination of specific components, the binder basically improves stability of an electrode in the process of fabricating the electrode, thus providing secondary batteries with superior cycle properties. | 07-19-2012 |
20120183849 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - According to one embodiment, a non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode spaced apart from the positive electrode, and a non-aqueous electrolytic solution. The negative electrode includes a collector, and a negative electrode layer formed on one or both surfaces of the collector and containing an active material having a potential of 0.5 V or more and 2 V or less based on metallic lithium at the insertion and the desorption of lithium. Metallic iron is formed on the surface of the negative electrode layer in an amount of 10 to 80% per unit area. | 07-19-2012 |
20120183850 | POSITIVE ELECTRODE MIXTURE, POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed are: a positive electrode mixture which provides a nonaqueous electrolyte secondary battery that is capable of exhibiting high output at high current rate; and a positive electrode. Specifically disclosed is a positive electrode mixture which contains a positive electrode active material powder, a conductive agent, a binder and a solvent. The positive electrode active material powder is composed of particles having an average particle diameter of 0.05-1 μm (inclusive) and has a tap density of 0.8-3.0 g/cm | 07-19-2012 |
20120183851 | LITHIUM SECONDARY BATTERY AND POSITIVE ELECTRODE FOR THE BATTERY - The lithium secondary battery positive electrode provided by the present invention has a positive electrode collector and a positive active material layer formed on the collector. The positive active material layer is composed of a matrix phase containing at least one particulate positive active material and at least one binder, and an aggregate phase dispersed in the matrix phase, constituted by aggregation of at least one particulate positive active material and containing substantially no binder. | 07-19-2012 |
20120189911 | BINDER FOR SECONDARY BATTERY EXHIBITING EXCELLENT ADHESIVE FORCE - The present invention relates to a binder for an electrode of a secondary battery, including polymer particles in which two or more types of monomers are polymerized with two or more types of cross-linking agents with mutually different molecular weights. The binder, through which the combination of the specific ingredients above, fundamentally improves electrode stability, starting from the manufacturing process of an electrode, to thereby provide a secondary battery with excellent cycle characteristics. | 07-26-2012 |
20120189912 | COLLECTOR FOR BIPOLAR LITHIUM ION SECONDARY BATTERY - [Problems to be Solved] To provide a method that is capable of suppressing absorption of lithium ions into the inner portion of a resin collector that is used in a bipolar lithium ion secondary battery. | 07-26-2012 |
20120189913 | ANODE FOR USE IN A LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY - A negative electrode for a lithium ion secondary battery including an active material layer that is disposed on a current collector and that contains a negative electrode active material and a binder, in which the negative electrode active material includes an alloy active material and a carbon active material, and the weight ratio between the alloy active material and the carbon active material in the active material layer is 20:80 to 50:50, and the binder contains 0.1 to 15 wt % of an ethylenically unsaturated carboxylic acid monomer polymerization unit. | 07-26-2012 |
20120189914 | LITHIUM SECONDARY BATTERY AND POSITIVE ELECTRODE FOR SAID BATTERY - A positive electrode for a lithium secondary battery provided by the present invention includes a positive electrode active material layer having a particulate positive electrode active material constituted by a composite oxide containing lithium and at least one type of transition metal element, and at least one type of binding material constituted by a polymer compound having at least one functional group, and a conductive carbonaceous coating film is formed on a surface of the positive electrode active material. Further, the polymer compound constituting the binding material is molecularly bound to carbon atoms constituting the carbonaceous coating film of at least a part of the positive electrode active material, whereby a composite compound is formed from the polymer compound molecularly bound to the carbon atoms and a carbon network constituting the carbonaceous coating film containing the carbon atoms. | 07-26-2012 |
20120196181 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector; and a positive active material layer including an additive which is Li | 08-02-2012 |
20120202113 | Lithium Ion Battery - A high rate lithium battery can include a cathode composition coated on a substrate. The cathode composition can include first and second active materials and binder. The first and second active materials can have different characteristics including, for example, particle size, tap density, and amount of conductive component. The first and second active materials can be combined to achieve higher packing densities of the active material, which may allow for a higher capacity battery as compared to conventional batteries formed with a single active material. | 08-09-2012 |
20120202114 | METHOD FOR PREPARING A POSITIVE ELECTRODE MATERIAL THROUGH EXTRUSION IN PRESENCE OF AN AQUEOUS SOLVENT, POSITIVE ELECTRODE OBTAINED THROUGH SAID METHOD, AND USES THEREOF - The present invention relates to a method for preparing a positive electrode that is made up of a composite material containing at least one active positive electrode made of iron and phosphate and at least one water-soluble polymer having ionic conduction properties in the presence of a lithium salt, said method comprising at least one step for mixing ingredients of the composite material through extrusion so as to obtain an extruded composite material and wherein said extrusion step is carried out by means of a co-kneader or extruder in the presence of an aqueous solvent and at a temperature from 20° to 95° C. The invention also relates to the positive electrode obtained according to said method, to the use of said electrode for manufacturing a lithium battery, and to the lithium battery having such electrode built therein. The electrode is particularly characterized in that it contains a level of active material greater than 60 wt %. | 08-09-2012 |
20120202115 | ANODE ACTIVE MATERIAL, ANODE, BATTERY, AND METHOD OF MANUFACTURING ANODE - A battery that has a higher capacity and superior charge and discharge efficiency is provided. The battery includes a cathode, an anode, and an electrolyte. The anode has an anode active material layer provided on an anode current collector, and the anode active material layer contains a spherocrystal graphitized substance of mesophase spherule provided with a fine pore as an anode active material. | 08-09-2012 |
20120202116 | Composite Current Collector for Aqueous Electrochemical Cell for aqueous electrochemical cell - Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-fee and lead-free alkaline zinc electrodes. | 08-09-2012 |
20120202117 | NEGATIVE ELECTRODE FOR NON-AQUEOUS-SYSTEM SECONDARY BATTERY AND MANUFACTURING PROCESS FOR THE SAME - It is equipped with a negative-electrode current collector, and a negative-electrode mixture-material layer comprising a negative-electrode mixture material that includes a negative-electrode active material containing silicon (Si) and a binding agent at least, the negative-electrode mixture-material layer being formed on a surface of the negative-electrode current collector; and
| 08-09-2012 |
20120208083 | Silicon Based Electrode Formulations for Lithium-ion Batteries and Method for Obtaining It - An electrode assembly for a rechargeable Li-ion battery, comprising a current collector provided with an electrode composition comprising carboxymethyl cellulose (CMC) binder material and silicon powder provided with a layer of SiO | 08-16-2012 |
20120208084 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY - A negative electrode for lithium ion secondary batteries, including: a negative electrode current collector having a plurality of protrusions formed on a surface thereof; and a plurality of granular bodies, the granular bodies being supported on the protrusions, respectively, and including an alloy-formable active material capable of absorbing and releasing lithium ions, wherein: the granular bodies have a resin layer on their respective surfaces; and the resin layer includes a first resin component which is at least one selected from polyimides and polyacrylic acid, and a second resin component which is composed of a copolymer including vinylidene fluoride units and hexafluoropropylene units. A lithium ion secondary battery including the above negative electrode. | 08-16-2012 |
20120208085 | Vinylidene Fluoride Polymer Powder and Vinylidene Fluoride Polymer Solution - Provided is a vinylidene fluoride polymer powder exhibiting excellent solubility in aprotic polar solvents, and a vinylidene fluoride polymer solution obtained from the powder and an aprotic polar solvent. The vinylidene fluoride polymer powder has an NMP penetration rate of 12 to 100% as measured by an NMP penetration test. | 08-16-2012 |
20120214059 | Collection structure in batteries - An electrode in a battery, e.g., a lithium-ion battery, has an electrically conductive carrier foil including (i) a terminal region for connection to an electrical circuit and (ii) at least one electrically conductive structure element configured to reduce the electrical resistance between the terminal region and a point on the carrier foil in order to improve electrical collection via the terminal region. | 08-23-2012 |
20120214060 | LEAD MEMBER - A lead member includes a flat conductor having a top face and a bottom face, and insulation films adhered onto both faces of the conductor at a middle portion of the conductor along a length direction of the conductor. The conductor includes a base material that is copper and a nickel plated layer on the base material. A thickness of the conductor has a value larger than, or equal to 0.05 mm, and smaller than, or equal to 0.2 mm. A width of the conductor has a value larger than, or equal to 2 mm, and smaller than, or equal to 7 mm. A thickness of the nickel plated layer has a value larger than, or equal to 2.5 μm, and smaller than, or equal to 5.0 μm. | 08-23-2012 |
20120214061 | 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. | 08-23-2012 |
20120214062 | BATTERY GRID - A battery grid is provided having a frame that includes a top element, a bottom element, a first side element, and a second side element. A current collection lug is coupled to the top element. The battery grid includes a plurality of wires provided within the frame defining a plurality of open areas. The plurality of wires includes a plurality of linear vertical wire members which extend from the top element toward the bottom element, first side element, or second side element. At least one of the linear vertical wire members includes a discontinuity terminating the linear vertical-wire member before reaching the bottom element, first side element, or second side element, the discontinuity being defined by parallel horizontal wire members defining an open space. | 08-23-2012 |
20120214063 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME - A negative electrode for a lithium secondary battery, in which α-Fe | 08-23-2012 |
20120214064 | SOLID-STATE ELECTROLYTE BATTERY AND CATHODE ACTIVATING SUBSTANCE - The present invention provides a solid-state electrolyte battery using a cathode activating substance which functions as such in an amorphous state and has a high ionic conductivity and provides a cathode activating substance used for the same. This solid-state electrolyte battery includes a laminated body. In the laminated body, a cathode-side current collector film, cathode activating substance film, solid-state electrolyte film, anode potential formation layer and anode-side current collector film are stacked above a substrate in this order. The cathode activating substance film is made of Li | 08-23-2012 |
20120214065 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE POSITIVE ELECTRODE, LITHIUM SECONDARY BATTERY HAVING THE POSITIVE ELECTRODE, AND VEHICLE HAVING THE LITHIUM SECONDARY BATTERY - A positive electrode ( | 08-23-2012 |
20120219855 | LITHIUM ION SECONDARY BATTERY - A positive electrode capable of achieving both of high volumetric energy density and high volumetric power density and a lithium ion secondary battery using the same are provided. A lithium ion secondary battery includes a positive electrode including a current collector with a positive active material mixture layer applied on both faces thereof, the positive active material mixture layer including active material particles, conductive additive particles and a binder. The active material particles used have a value D of an average particle diameter D | 08-30-2012 |
20120219856 | ELECTRODE MATERIALS FOR MAGNESIUM BATTERIES - A compound of formula A | 08-30-2012 |
20120219857 | BATTERY GRID - A battery grid is provided having a frame having a top element, a bottom element, a first side element, and a second side element. A current collection lug is coupled to the top element. The battery grid includes a plurality of wires provided within the frame and defining a plurality of open areas. The plurality of wires includes a vertical grid wire continuously extending from the bottom element toward the top element, and a plurality of horizontal grid wires continuously extending from the first side element or second side element, wherein the vertical grid wire intersects the plurality of horizontal grid wires, but does not intersect the first side element, second side element; or top element. | 08-30-2012 |
20120225351 | METHOD FOR PRODUCING ELECTRODE LAMINATE AND ELECTRODE LAMINATE - A method for producing an electrode laminate including a current collector using aluminum as the material and an electrode layer laminated on the current collector, where the method includes the steps of: laminating an electrode layer forming composition, which contains at least a sulfide-based solid electrolyte and an active material and no binding agent, on the current collector; and f heating the current collector and the electrode layer forming composition at a temperature of not less than 60° C. and adhering them. | 09-06-2012 |
20120225352 | ELECTRODE MATERIALS FOR RECHARGEABLE BATTERIES - Selenium or selenium-containing compounds may be used as electroactive materials in electrodes or electrochemical devices. The selenium or selenium-containing compound is mixed with a carbon material. | 09-06-2012 |
20120225353 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE NEGATIVE ELECTRODE, LITHIUM SECONDARY BATTERY HAVING THE NEGATIVE ELECTRODE, AND VEHICLE HAVING THE LITHIUM SECONDARY BATTERY - A negative electrode ( | 09-06-2012 |
20120231331 | ELECTRODE INCLUDING CURRENT COLLECTOR WITH NANO-SCALE COATING AND METHOD OF MAKING THE SAME - Current collectors and methods are provided that relate to electrodes that are useful in lithium polymer electrochemical cells. The provided current collectors include a metallic substrate, a substantially uniform nano-scale carbon coating, and an active electrode material. The coating has a maximum thickness of less than about 200 nanometers. | 09-13-2012 |
20120231332 | BINDER COMPOSITION FOR SECONDARY BATTERY, ELECTRODE MIXTURE FOR SECONDARY BATTERY EMPLOYING IT, AND SECONDARY BATTERY - A binder composition of the present invention is for a non-aqueous secondary battery with excellent adhesion between an electrode active material and a current collector. A degree of electrode swelling with an electrolytic solution at a high temperature is small. This binder composition can be used in production of an electrode mixture for a non-aqueous secondary battery. The binder composition can comprise a binder made of a fluorinated copolymer having repeating units derived from tetrafluoroethylene and repeating units derived from propylene, and a solvent or dispersing medium, wherein the fluorinated copolymer has a weight average molecular weight of from 10,000 to 300,000. | 09-13-2012 |
20120231333 | LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME - A lithium secondary battery | 09-13-2012 |
20120231334 | POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLES FOR LITHIUM ION SECONDARY BATTERIES, POSITIVE ELECTRODE USING THE SAME, AND LITHIUM ION SECONDARY BATTERY - Positive electrode active material particles for lithium ion secondary batteries include: a core particle including a first olivine-structured, lithium-containing phosphate compound which includes Fe and/or Mn and Li; and a shell layer attached to the surface of the core particle. The shell layer includes a second olivine-structured, lithium-containing phosphate compound which includes Fe and/or Mn and Li. At least the core particle includes a phosphorous compound represented by the formula (1): Me | 09-13-2012 |
20120237821 | ELECTRODE AND METHOD FOR PRODUCING THE SAME - The electrode of the present invention includes a current collector and an active material-containing layer formed on one side or both sides of the current collector. The active material-containing layer has a thickness of 20 to 200 μm per one side of the current collector, and diethyl carbonate permeates the active material-containing layer at a rate of 0.1 g/(cm | 09-20-2012 |
20120237822 | LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO | 09-20-2012 |
20120237823 | POROUS THREE DIMENSIONAL COPPER, TIN, COPPER-TIN, COPPER-TIN-COBALT, AND COPPER-TIN-COBALT-TITANIUM ELECTRODES FOR BATTERIES AND ULTRA CAPACITORS - A method and apparatus for forming a reliable and cost efficient battery or electrochemical capacitor electrode structure that has an improved lifetime, lower production costs, and improved process performance are provided. In one embodiment a method for forming a three dimensional porous electrode for a battery or an electrochemical cell is provided. The method comprises depositing a columnar metal layer over a substrate at a first current density by a diffusion limited deposition process and depositing three dimensional metal porous dendritic structures over the columnar metal layer at a second current density greater than the first current density. | 09-20-2012 |
20120237824 | POSITIVE ELECTRODE CURRENT COLLECTOR LAMINATE FOR LITHIUM SECONDARY BATTERY - The present invention provides a positive electrode current collector laminate that has the ability, even in the case of high voltage operation, to protect a positive electrode current collector from corrosion without impairing the battery characteristics, and also provides a lithium secondary battery. The positive electrode current collector laminate has an electroconductive protective layer (B) that contains a fluororesin (b1) and an electroconductive filler (b2) and is disposed on a positive electrode current collector (A), and the lithium secondary battery uses this positive electrode current collector laminate. | 09-20-2012 |
20120237825 | METHOD FOR PRODUCING BATTERY ELECTRODE - The present invention provides a method for producing a battery electrode having a configuration in which an active material layer containing an active material | 09-20-2012 |
20120244428 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: | 09-27-2012 |
20120244429 | ELECTRICAL STORAGE DEVICE AND ELECTRODE THEREOF - The present invention generally relates to electrodes, electrical storage devices comprising the electrodes, and methods for producing the electrodes and electrical storage devices. The electrodes comprise a current collector, an electrically conductive mat, and a first and second electroactive material, the first electroactive material having a higher energy density than the second electroactive material, and the second electroactive material having a higher rate capability than the first electroactive material. The electrically conductive mat provides a structural and conductive support for at least one of the high-rate and high-energy electroactive materials. The electrodes can be provided in various configurations and be used in high-rate high-energy electrical storage devices to provide improved cycle life. | 09-27-2012 |
20120244430 | LITHIUM-ION SECONDARY BATTERY - To provide a lithium-ion secondary battery having higher discharge capacity and higher energy density and a manufacturing method thereof. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer provided over the positive electrode current collector. In the positive electrode active material layer, graphenes and lithium-containing composite oxides are alternately provided. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. Further, the lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with a surface of the positive electrode current collector. | 09-27-2012 |
20120244431 | ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THE ELECTRODE - An electrode for a non-aqueous electrolyte battery has a current collector; and an electrode active material layer formed on the current collector, the electrode active material layer containing an electrode active material and carboxymethylcellulose. The weight of the electrode active material layer is at 250 g/m | 09-27-2012 |
20120244432 | MIXED CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided are a mixed cathode active material including layered structure lithium manganese oxide expressed as Chemical Formula 1 and a second cathode active material having a plateau voltage profile in a range of 2.5 V to 3.3 V, and a lithium secondary battery including the mixed cathode active material. The mixed cathode active material and the lithium secondary battery including the same may have improved safety and simultaneously, may be used in an operating device requiring the foregoing battery by widening a state of charge (SOC) range able to maintain power more than a required value by allowing the second cathode active material to complement low power in a low SOC range. | 09-27-2012 |
20120244433 | BATTERY ELECTRODE PRODUCTION METHOD - The electrode production method provided by the present invention includes a step of mixing microbubbles | 09-27-2012 |
20120244434 | Positive Electrode For Lithium Ion Battery, Method For Producing Said Positive Electrode, And Lithium Ion Battery - The present invention provides a positive electrode for lithium ion battery reducing a contact resistance of a battery and achieving an excellent output property. The positive electrode for lithium ion battery comprising a mixed layer comprising:
| 09-27-2012 |
20120244435 | NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY - To provide a negative electrode for lithium-ion secondary battery, negative electrode which has good cyclability by suppressing the active material from coming off or falling down from the current collector. | 09-27-2012 |
20120251877 | SECONDARY LITHIUM ION BATTERY - A secondary lithium ion battery includes an anode electrode having an anode current collector and an anode active material formed on the anode current collector, a cathode electrode having a cathode current collector and a cathode active material formed on the cathode current collector; a separator interposed between the anode electrode and the cathode electrode, and a nonaqueous liquid electrolyte. The anode active material contains lithium titanate and amorphous carbon. The hybrid anode electrode containing lithium titanate and amorphous carbon of the secondary lithium ion battery according to the present invention can reduce swelling of the secondary lithium ion battery during storage or cycle and prolong life span of the secondary lithium ion battery. | 10-04-2012 |
20120251878 | LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR - The lithium secondary battery provided by the present invention includes a negative electrode having a negative electrode collector and a negative electrode layer including a negative electrode active material and formed on the surface of the negative electrode collector, and is characterized in that the negative electrode layer comprises a negative electrode active material layer composed primarily of a negative electrode active material, and an insulating layer composed primarily of an insulating filler and formed on the negative electrode active material layer, and the ratio (Sb/Sa) of a pore specific surface area of the insulating layer (Sb: m | 10-04-2012 |
20120251879 | ALUMINUM FOIL WITH CARBONACEOUS PARTICLES DISPERSED AND SUPPORTED THEREIN - An object of the present invention is to provide an aluminum foil that can make a positive electrode current collector thinner for size reduction and higher energy density of electrical storage devices, be produced easily and has a low surface resistance. An aluminum foil of the present invention as a means for achieving the object is characterized in that carbonaceous particles are dispersed and supported therein. The aluminum foil with carbonaceous particles dispersed and supported therein of the present invention can be produced by electrolysis. | 10-04-2012 |
20120258359 | METHOD FOR PRODUCING ELECTRODE, METHOD FOR PRODUCING ELECTRODE PASTE, AND SODIUM SECONDARY BATTERY - The present invention provides a method for producing an electrode and a method for producing an electrode paste, and a sodium secondary battery. The method for producing an electrode includes the following steps (1) to (5) in this order:
| 10-11-2012 |
20120264013 | LITHIUM ION SECONDARY BATTERY - Disclosed is a lithium ion secondary battery including: a positive electrode including a positive electrode active material layer comprising a positive electrode active material capable of absorbing and releasing lithium ions, and a positive electrode current collector; a negative electrode including a negative electrode active material layer comprising an alloy-formable active material, and a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode active material layer has an easily swellable resin having a degree of swelling with the non-aqueous electrolyte of 20% or more, and the negative electrode active material layer has a hardly swellable resin having a degree of swelling with the non-aqueous electrolyte of less than 20%. | 10-18-2012 |
20120264014 | COMPOSITE PARTICLES FOR ELECTROCHEMICAL ELEMENT ELECTRODE - The present invention provides a method of producing a composite particle for high density electrochemical element electrodes in electrochemical elements having low internal resistance and high capacitance. Slurry containing an electric conductive material and a binder is obtained, and the slurry is sprayed to a fluidized electrode active material to carry out fluidized-granulation, and further particles obtained by the fluidized-granulation are rolling-fluidized granulated, and thereby, composite particle for electrochemical element electrode, containing electrode active materials, electric conductive materials, and binders, and being structured of an outer layer portion (outer shell portion) and an inner layer portion (core portion) are obtained. | 10-18-2012 |
20120264015 | Anode Active Material For Lithium Secondary Battery And Lithium Secondary Battery Having The Same - An anode active material for a lithium secondary battery and a lithium secondary battery having the same are disclosed. The anode active material for a lithium secondary battery includes a silicon alloy consisting of silicon and at least two kinds of metals other than silicon, each having the heat of mixing with the silicon of −23 kJ/mol or less. The anode active material for a lithium secondary battery has a high capacity, and thus, is useful in fabricating a high-capacity lithium secondary battery. Also, the anode active material for a lithium secondary battery has a small crystal size of a silicon phase and consequently a small change in volume during charging/discharging, and thus, ensures excellent cycle life characteristics in applications to batteries. | 10-18-2012 |
20120270103 | Negative active for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same - A negative electrode for a lithium rechargeable battery includes a current collector, and a negative active material layer on the current collector, the negative active material layer including a silicon-based active material, a carbon-based active material, and an aqueous additive including an aqueous binder and an agent for increasing viscosity, the silicon-based active material being coated with an organic binder, wherein the aqueous additive is between portions of the silicon-based active material, between portions of the carbon-based active material, or between the silicon-based active material and the carbon-based active material. | 10-25-2012 |
20120276447 | ELECTRODE FOR A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD OF MANUFACTURE OF ELECTRODE FOR A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An electrode for a nonaqueous electrolyte secondary battery includes a current collector and an electrode material disposed on the current collector. the electrode material has a thickness of 50 μm or larger. The electrode material contains at least active material particles, an electro-conductive material, and a crack preventive material. An average particle diameter of the crack preventive material is two times or larger than an average particle diameter of the active material particles. | 11-01-2012 |
20120276448 | NEGATIVE ELECTRODE MATERIAL FOR AN ELECTRICAL STORAGE DEVICE, AND NEGATIVE ELECTRODE FOR AN ELECTRICAL STORAGE DEVICE USING THE SAME - Provided is a negative electrode material for an electricity storage device, comprises, a negative electrode active material comprising a compound containing at least SnO and P | 11-01-2012 |
20120282521 | ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, AND ELECTRODE AND LITHIUM BATTERY CONTAINING THE SAME - An electrode active material, a method of manufacturing the same, and an electrode and a lithium battery adopting the same. The electrode active material includes a core capable of occluding and emitting lithium; and a surface treatment layer formed on at least a portion of a surface of the core, wherein the surface treatment layer includes a lithium-free oxide having a spinel structure. | 11-08-2012 |
20120288757 | THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY FOR CURRENT COLLECTOR, ELECTRODE USING THE ALUMINUM POROUS BODY, NONAQUEOUS ELECTROLYTE BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR - It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body for a current collector which is suitably used for electrodes for nonaqueous electrolyte batteries and electrodes for capacitors, an electrode and a capacitor each using the same. The three-dimensional network aluminum porous body for a current collector of the present invention is a sheet-shaped three-dimensional network aluminum porous body for a current collector used for electrodes, and the aluminum porous body has been made to have an average cell diameter of 50 μm or more and 1000 μm or less in order to enhance the filling performance of an active material slurry. | 11-15-2012 |
20120288758 | THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY FOR CURRENT COLLECTOR, ELECTRODE USING THE ALUMINUM POROUS BODY, AND BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR EACH USING THE ELECTRODE - It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body for a current collector which is suitably used for electrodes for nonaqueous electrolyte batteries and electrodes for capacitors, an electrode and a capacitor each using the same. In such a three-dimensional network aluminum porous body for a current collector, the aluminum porous body has been made to have a compressive strength in a thickness direction of 0.2 MPa or more in order to efficiently fill an active material into the sheet-shaped three-dimensional network aluminum porous body. | 11-15-2012 |
20120288759 | LITHIUM SECONDARY BATTERY - A lithium secondary battery of the present invention has a positive electrode is provided with a positive electrode mix layer that includes a positive electrode active material and a conductive material. The positive electrode mix layer has two peaks, large and small, of differential pore volume over a pore size ranging from 0.01 μm to 10 μm in a pore distribution curve measured by a mercury porosimeter. A pore size of the smaller peak B of the differential pore volume is smaller than a pore size of the larger peak A of the differential pore volume. | 11-15-2012 |
20120288760 | Flat and High-Density Cathodes for Use in Electrochemical Cells - The traditional method of pressing CF | 11-15-2012 |
20120295157 | LITHIUM SECONDARY BATTERY - A lithium secondary battery of the present invention has a positive electrode is provided with a positive electrode mix layer that includes a positive electrode active material and a conductive material. The positive electrode mix layer has two peaks, large and small, of differential pore volume over a pore size ranging from 0.01 μm to 10 μm in a pore distribution curve measured by a mercury porosimeter. A pore size of the smaller peak B of the differential pore volume is smaller than a pore size of the larger peak A of the differential pore volume. | 11-22-2012 |
20120295158 | BATTERY CELL - Disclosed is a battery cell in which a first angle that is the angle between a collector ( | 11-22-2012 |
20120295159 | LITHIUM ION SECONDARY BATTERY NEGATIVE ELECTRODE SLURRY COMPOSITION, A LITHIUM ION SECONDARY BATTERY NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery negative electrode slurry composition comprising a negative electrode active material, a thickening agent, a binder of polymer particles and water, wherein the negative electrode active material includes a carbon material and the carbon material has a graphite interlayer distance (an interplanar spacing (d value) of the (002) plane as determined by an X-ray diffraction method) of 0.340 to 0.370 nm, the thickening agent is a polymer having a degree of polymerization of 1400 to 3000, the polymer particles are obtained by polymerizing a monomer composition including 1 to 10 wt % of a monocarboxylic acid monomer, and an amount of acid groups on the surface of the polymer particles as determined by a conductivity titration is 0.1 to 1.0 mmol per 1 g of the polymer particles. | 11-22-2012 |
20120301780 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, METHOD FOR PRODUCING THE SAME, POSITIVE ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY - A positive electrode active material for a lithium ion battery includes a material represented by chemical formula LiMPO | 11-29-2012 |
20120301781 | ELECTRODE USEABLE IN ELECTROCHEMICAL CELL AND METHOD OF MAKING SAME - In one aspect of the present invention, an electrode useable in an electrochemical cell includes an electrically conductive substrate, nanostructured current collectors in electrical contact with the conductive substrate, and nanoparticles of a ternary orthosilicate composite coated on the nanostructured current collectors. The ternary orthosilicate composite comprises Li | 11-29-2012 |
20120301782 | METHOD OF MAKING TIN-BASED ALLOYS FOR NEGATIVE ELECTRODE COMPOSITIONS - Powder milling techniques, tin-based alloys formed thereby, and the use of such alloys as electrode compositions for lithium ion batteries are provided. The alloys include tin and at least one transition metal but contain no silicon. The powder milling is done using low energy roller milling (pebble milling). | 11-29-2012 |
20120301783 | NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a non-aqueous electrolyte secondary battery including a positive electrode absorbing and releasing lithium ions, a negative electrode, a porous insulating layer interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte with lithium ion conductivity. The negative electrode includes a current collector having a plurality of protrusions on a surface thereof, and particulate bodies being respectively supported on the protrusions, and including an alloy-type active material. The negative electrode has gaps between the particulate bodies adjacent to each other. The particulate bodies extend outwardly from surfaces of the protrusions of the current collector, and are each an aggregate of a plurality of clusters including the alloy-type active material. | 11-29-2012 |
20120308885 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector including a carbon layer disposed on a substrate; and a positive active material layer disposed on the current collector, wherein the carbon layer has a loading level of 0.5 g/m | 12-06-2012 |
20120308886 | THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY FOR CURRENT COLLECTOR AND METHOD FOR PRODUCING THE SAME - The present invention provides an electrode current collector for a secondary battery or the like, wherein a compressed part for attaching a tab lead to an end part of the three-dimensional network aluminum porous body to be used as an electrode current collector of a secondary battery, a capacitor using a nonaqueous electrolytic solution or the like is formed, and a method for producing the same. That is, the present invention provides a three-dimensional network aluminum porous body for a current collector having a compressed part compressed in a thickness direction for connecting a tab lead to its end part, wherein the compressed part is formed at a central part in the thickness direction of the aluminum porous body. | 12-06-2012 |
20120308887 | RECHARGEABLE BATTERIES - A rechargeable battery is disclosed having electrode and separator structures which are made up of fibre-reinforced composite material, thereby allowing the battery itself to serve as an integral structural component. The utilisation or efficiency of the rechargeable battery is considerably enhanced by rendering at least part of the matrix material of the electrodes and the separator porous, thereby to facilitate improved access to active sites on the electrodes, with the porosity in the separator allowing improved ion transport, both of which enhance cell operation. The porous structure also provides improved electrolyte containment and retention in the event of damage. | 12-06-2012 |
20120315539 | NANOSTRUCTURE COMPOSITE BATTERIES AND METHODS OF MAKING SAME FROM NANOSTRUCTURE COMPOSITE SHEETS - A secondary battery capable of being charged after discharging is provided. The battery includes a positive electrode, made from a sheet of carbon nanotubes infiltrated with mixed metal oxides, and a negative electrode made from a sheet of carbon nanotubes with silicon or germanium particles. | 12-13-2012 |
20120315540 | THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY FOR CURRENT COLLECTOR, ELECTRODE USING THE ALUMINUM POROUS BODY, AND NONAQUEOUS ELECTROLYTE BATTERY, NONAQUEOUS ELECTROLYTIC SOLUTION CAPACITOR AND LITHIUM-ION CAPACITOR EACH USING THE ELECTRODE - It is an object of the present invention to provide an aluminum porous body for a current collector in which electric resistivity is reduced to enhance current collecting performance, and an electrode, a nonaqueous electrolyte battery, a capacitor and a lithium-ion capacitor each using the aluminum porous body for a current collector. Such a sheet-shaped three-dimensional network aluminum porous body of the present invention is a three-dimensional network aluminum porous body for a current collector including an electric resistivity in an in-plane direction and in a thickness direction of 0.5 mΩcm or less. An electrode can be configured by using the three-dimensional network aluminum porous body for a current collector, and further a nonaqueous electrolyte battery, a capacitor and a lithium-ion capacitor can be configured by using the electrode. | 12-13-2012 |
20120315541 | LITHIUM-ION SECONDARY BATTERY - A lithium ion secondary battery including a negative electrode having a negative electrode active material layer containing a negative electrode active material and specific amount of a negative electrode binder; a positive electrode having a positive electrode active material layer containing a positive electrode active material and specific amount of a positive electrode binder; an electrolyte solution; and a separator, wherein: the negative electrode active material includes a carbonaceous active material; the negative electrode binder is a polymer obtained by polymerization of a monomer composition for a negative electrode containing specific amount of styrene and an ethylenically unsaturated carboxylic acid; the positive electrode active material contains a specific transition metal elements; the positive electrode binder is a polymer obtained by polymerization of a monomer composition for a positive electrode containing specific amount of acrylonitrile and an ethylenically unsaturated carboxylic acid; and a swelling degree of the positive electrode binder is 2.0 to 15.0 times. | 12-13-2012 |
20120321945 | SECONDARY BATTERY - A secondary battery including an intermediate layer having a pattern formed by carbon and a binder between a substrate and an active material layer and reinforcing adhesion between the substrate and the active material layer. In the intermediate layer, the carbon and the binder in the intermediate layer are adjacent to each other. Therefore, the active material is prevented from being detached from the substrate, thereby improving performance of the secondary battery. A small amount of the binder having strong adhesion is used in the active material slurry, thereby ensuring safety of the battery. | 12-20-2012 |
20120321946 | SECONDARY BATTERY - A secondary battery includes a first electrode plate including a first active material coated area in which a first substrate is coated with a first active material and a first non-coated area not coated with the first active material; a second electrode plate including a second active material coated area in which a second substrate is coated with a second active material and a second non-coated area not coated with the second active material; and a separator interposed between the first and second electrode plates, wherein at least one of the first and second electrode plates includes an electrode assembly having a waveform boundary section between one active material coated area and one non-coated area. A manufacturing method of such secondary battery is also disclosed. | 12-20-2012 |
20120321947 | LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD FOR SAME - In a lithium secondary battery provided by the present invention, a positive electrode active material is constituted by a lithium composite oxide having at least lithium, nickel, and/or cobalt as main constituent elements, a porosity of a positive electrode active material layer is 30% or more and 40% or less, and a porosity of a negative electrode active material layer is 30% or more and 45% or less. Further, a void volume ratio (Sa/Sb) between a void volume (Sa) per unit area of the positive electrode active material layer and a void volume (Sb) per unit area of the negative electrode active material layer satisfies 0.9≦(Sa/Sb)≦1.4. | 12-20-2012 |
20120321948 | POSITIVE ELECTRODE MATERIAL, MANUFACTURING METHOD THEREOF, POSITIVE ELECTRODE FOR NON-AQUEOUS RECHARGEABLE BATTERY, AND NON-AQUEOUS RECHARGEABLE BATTERY - A positive electrode material that can form a positive electrode mixture containing composition with reduced changes over time and high productivity, a manufacturing method thereof, a non-aqueous rechargeable battery less likely to swell and having a high storage characteristic during storage at high temperatures, and a positive electrode that can form the battery are provided. The object is solved by providing a positive electrode material having a coating layer of an organic silane compound on a surface of a positive electrode active material made of a lithium nickel composite oxide represented by the general compositional formula (1): Li | 12-20-2012 |
20120321949 | METHOD OF PRODUCING LITHIUM ION-STORING/RELEASING MATERIAL, LITHIUM ION-STORING/RELEASING MATERIAL, AND ELECTRODE STRUCTURE AND ENERGY STORAGE DEVICE USING THE MATERIAL - A method of producing a material capable of electrochemically storing and releasing a large amount of lithium ions is provided. The material is used as an electrode material for a negative electrode, and includes silicon or tin primary particles composed of crystal particles each having a specific diameter and an amorphous surface layer formed of at least a metal oxide, having a specific thickness. Gibbs free energy when the metal oxide is produced by oxidation of a metal is smaller than Gibbs free energy when silicon or tin is oxidized, and the metal oxide has higher thermodynamic stability than silicon oxide or tin oxide. The method of producing the electrode material includes reacting silicon or tin with a metal oxide, reacting a silicon oxide or a tin oxide with a metal, or reacting a silicon compound or a tin compound with a metal compound to react with each other. | 12-20-2012 |
20120328940 | LEAD-ACID BATTERY FORMULATIONS CONTAINING DISCRETE CARBON NANOTUBES - Compositions of discrete carbon nanotubes for improved performance lead acid batteries. Further disclosed is a method to form a lead-acid battery with discrete carbon nanotubes. | 12-27-2012 |
20120328941 | CURRENT COLLECTOR USING THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY, ELECTRODE USING THE CURRENT COLLECTOR, AND NONAQUEOUS ELECTROLYTE BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR WITH NONAQUEOUS ELECTROLYTIC SOLUTION, EACH USING THE ELECTRODE, AND METHOD FOR PRODUCING THE ELECTRODE - It is an object of the present invention to provide an electrode using a current collector made of an aluminum porous body which is suitably used for an electrode for a nonaqueous electrolyte battery and an electrode for a capacitor, and a method for producing the electrode. In the current collector of the present invention, a strip-shaped compressed part compressed in a thickness direction is formed at one end part of a three-dimensional network aluminum porous body and a tab lead is bonded to the compressed part by welding. The width of the compressed part is 2 to 10 mm. Further, the electrode is formed by filling the current collector with an active material. | 12-27-2012 |
20120328942 | DESIGN AND FABRICATION OF ELECTRODES WITH GRADIENTS - An electrode has a front face furthest from the current collector and a back face closest to the current collector and Is disposed on the current collector, and the electrode has a primary gradient of one of a chemical, physical and performance properties of the electroactive particle composition between the front and back faces, with the proviso that the primary gradient is not a bulk porosity gradient. In some embodiments, the electrode further comprises one or more secondary gradients Imposed over the primary gradient. The secondary gradient is one or more gradients selected from the group consisting of particle size gradient, particle size distribution gradient, particle morphology gradient, particle internal porosity, bulk porosity, particle volumetric charge-transfer resistance gradient, particle specific surface area gradient, particle crystalline structure gradient, particle crystallite size gradient, particle chemical composition gradient, particle robustness to cycling gradient, binder gradient, conductive additive gradient, and combinations thereof. | 12-27-2012 |
20120328943 | SI/C COMPOSITE, ANODE ACTIVE MATERIALS, AND LITHIUM BATTERY INCLUDING THE SAME - An Si/C composite includes carbon (C) dispersed in porous silicon (Si) particles. The Si/C composite may be used to form an anode active material to provide a lithium battery having a high capacity and excellent capacity retention. | 12-27-2012 |
20130004843 | ELECTRODE FOR LITHIUM ION BATTERY, MANUFACTURING METHOD THEREOF, LITHIUM ION BATTERY, AND MANUFACTURING METHOD THEREOF - An electrode for a lithium-ion secondary battery includes a collector of copper or the like, an electrode material layer being form on one surface and both surfaces of the collector and including an active material and a binder, and a binder-rich layer being formed in a dot shape or a stripe shape with a predetermined interval in the interface between the collector and the electrode material layer and having a binder concentration higher than that of the electrode material layer. Accordingly, a concentration gradient of the binder is provided to the surface of the collector. By arranging the binder-rich layer at a predetermined interval, it is possible to improve the adhesiveness between the collector and the electrode material layer due to an anchor effect and to guarantee conductivity between the collector and the electrode material layer. | 01-03-2013 |
20130004844 | THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY, ELECTRODE USING THE ALUMINUM POROUS BODY, AND NONAQUEOUS ELECTROLYTE BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR WITH NONAQUEOUS ELECTROLYTIC SOLUTION, EACH USING THE ELECTRODE - The present invention provides a three-dimensional network aluminum porous body in which the cell diameter of the three-dimensional network aluminum porous body is uneven in the thickness direction, and a current collector and an electrode respectively using the aluminum porous body, and a production method thereof. That is, such a sheet-shaped three-dimensional network aluminum porous body for a current collector has a cell diameter uneven in the thickness direction. Particularly, it is preferred that when a cross section in the thickness direction of the three-dimensional network aluminum porous body is divided into three regions of a region 1, a region 2 and a region 3 in this order, the average of the cell diameter in the region 1 and the cell diameter in the region 3 differs from the cell diameter in the region 2. | 01-03-2013 |
20130004845 | LITHIUM SECONDARY BATTERY - A lithium secondary battery according to the present invention comprises a cathode and an anode | 01-03-2013 |
20130011730 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY - Disclosed is a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes a current collector; a positive active material layer including a positive active material and a vanadium oxide; and a vanadium oxide-contained coating layer formed between the current collector and the positive active material layer. | 01-10-2013 |
20130011731 | CATHODE SLURRY COMPOSITION, CATHODE PREPARED FROM THE SAME, AND LITHIUM BATTERY COMPRISING THE CATHODE - A cathode slurry composition, a cathode prepared from the same, and a lithium battery comprising the cathode. The cathode slurry composition may include an aqueous binder, a cathode active material, and a non-transition metal oxide. | 01-10-2013 |
20130011732 | SECONDARY BATTERY - A secondary battery includes a base material, an intermediate layer including a carbon material on the base material, and an active material layer on the intermediate layer. A secondary battery including an intermediate layer may improve adhesion between the base material and the active material layer, thereby reducing the risk of separation of the active material from the base material and improving the reliability and lifetime of the secondary battery. | 01-10-2013 |
20130011733 | ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - An electrode for a lithium secondary battery, the electrode including: an electrode active material; and a composite including a clay and a polymer intercalated between layers of the clay, a method of manufacturing the electrode, and a lithium secondary battery including the electrode. | 01-10-2013 |
20130011734 | COPPER FOIL FOR NEGATIVE ELECTRODE CURRENT COLLECTOR OF SECONDARY BATTERY - Provided is a copper foil for a negative electrode current collector of secondary battery, wherein: roughening treatment is performed to both front and rear surfaces of a rolled copper alloy foil; an average surface roughness Ra of both the front and rear surfaces based on laser microscope measurement is 0.04 to 0.20 μm; and the ratio of surface area factor is within a range of 1.0<(C)/(C′)<1.1, when a three-dimensional surface area upon measuring the roughened surfaces with a laser microscope is (A), a two-dimensional area as a projected area upon measuring the three-dimensional surface area is (B), and a calculated value of (A)/(B) is expressed in (C), and when a three-dimensional surface area upon measuring the surfaces of a non-roughened rolled copper or copper alloy foil with a laser microscope is (A′), a two-dimensional area as a projected area upon measuring the three-dimensional surface area is (B′), and a calculated value of (A′)/(B′) is expressed in (C′). This invention aims to provide a copper foil for a negative electrode current collector of a secondary battery in which the adhesiveness of the secondary battery active material is superior, and which can reduce the variation in the area weight of the secondary battery active material, and has superior weather resistance and thermal resistance. | 01-10-2013 |
20130011735 | LITHIUM INKS AND ELECTRODES AND BATTERIES MADE THEREFROM - Lithium metal powder based inks are provided. The inks are provided in formulations suitable for printing using a variety of printing techniques, including screen printing, offset litho printing, gravure printing, flexographic printing, pad printing and inkjet printing. The inks include lithium metal powder, a polymer binder and optionally electrically conductive materials and/or lithium salts in a solvent. The inks are well suited for use in printing electrodes for use in lithium metal batteries. Batteries made from lithium powder based anodes and electronic applications such as RFID labels, Smart Cards and wearable medical devices are also provided. | 01-10-2013 |
20130017440 | ELECTRODE FOR SECONDARY CELL, METHOD FOR PRODUCING THE SAME, AND SECONDARY CELLAANM TAKANO; YasuoAACI Yokohama-shiAACO JPAAGP TAKANO; Yasuo Yokohama-shi JP - A secondary cell electrode includes a mix layer containing an active substance, a conductive agent, and a binder which is swollen by coexistence with an electrolytic solution and thus has a volume thereof increased; and a current collector formed of a conductive metal foil, the mix layer being located right on the current collector. The current collector has, in a surface thereof, a first concaved portion which is opened and a first convexed portion forming a wall of the first concaved portion; at least a part of a side surface of at least either one of the first concaved portion and the first convexed portion includes at least either one of a second concaved portion and a second convexed portion; and a mixture containing at least either one of the binder, the conductive material and the active substance is put into a space in the first concaved portion. | 01-17-2013 |
20130017441 | PLATING TECHNIQUE FOR ELECTRODE - Articles and methods for forming protected electrodes for use in electrochemical cells, including those for use in rechargeable lithium batteries, are provided. In some embodiments, the articles and methods involve an electrode that does not include an electroactive layer, but includes a current collector and a protective structure positioned directly adjacent the current collector, or separated from the current collector by one or more thin layers. Lithium ions may be transported across the protective structure to form an electroactive layer between the current collector and the protective structure. In some embodiments, an anisotropic force may be applied to the electrode to facilitate formation of the electroactive layer. | 01-17-2013 |
20130017442 | CATHODE ACTIVE MATERIAL COMPOSITION, CATHODE PREPARED BY USING THE SAME, AND LITHIUM BATTERY INCLUDING THE CATHODEAANM Cha; Jun-KyuAACI Yongin-siAACO KRAAGP Cha; Jun-Kyu Yongin-si KRAANM Han; Seung-HunAACI Yongin-siAACO KRAAGP Han; Seung-Hun Yongin-si KRAANM Jeong; Hye-SunAACI Yongin-siAACO KRAAGP Jeong; Hye-Sun Yongin-si KRAANM Kim; Ki-JunAACI Yongin-siAACO KRAAGP Kim; Ki-Jun Yongin-si KR - A cathode active material composition includes a cathode active material, a water-based binder, and a transition metal oxide. A cathode is prepared using the cathode active material composition. A lithium battery includes the cathode. The lithium battery has improved high-rate characteristics and lifespan characteristics by preventing an increase in internal resistance due to the corrosion of an electrode base material. | 01-17-2013 |
20130017443 | POWER STORAGE DEVICE, ELECTRODE, AND MANUFACTURING METHOD THEREOFAANM YAMAZAKI; ShunpeiAACI TokyoAACO JPAAGP YAMAZAKI; Shunpei Tokyo JP - To provide a power storage device with improved cycle characteristics. In the power storage device, a conductive catalyst layer is provided in contact with a surface of an active material layer formed of silicon or the like and a carbon layer is provided over the conductive catalyst layer. The carbon layer is formed by a CVD method using an effect of the catalyst layer. The carbon layer formed by a CVD method is crystalline and helps prevent an impurity such as an SEI from being attached to a surface of an electrode of the power storage device, leading to improvements in cycle characteristics of the power storage device. | 01-17-2013 |
20130017444 | ELECTRODES FOR SECONDARY BATTERIES AND SECONDARY BATTERIES USING THE SAMEAANM Honkura; KoheiAACI HitachiAACO JPAAGP Honkura; Kohei Hitachi JP - Disclosed is an electrode for a secondary battery having an electrode compound layer including an electrode active material formed on a current collector, in which the electrode compound layer is provided with a plurality of voids disposed along the thickness direction of the electrode compound layer, the depth of the void is 50% or more of the thickness of the electrode compound layer, the projection area of the voids is 20% or less of the entire projection area of the electrode for a secondary battery, and the length of the cross section of the void is 5 μm to 100 μm. | 01-17-2013 |
20130022864 | BATTERY ELECTRODE PRODUCTION METHOD - The present invention provides a method for producing a battery electrode having a configuration in which a compound material layer containing an active material | 01-24-2013 |
20130022865 | CURRENT COLLECTOR AND NONAQUEOUS SECONDARY CELL - A current collector having a multi-layered structure comprising a resin layer ( | 01-24-2013 |
20130022866 | CARBON-COATED LITHIUM IRON PHOSPHATE OF OLIVINE CRYSTAL STRUCTURE AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the lithium iron phosphate has a composition represented by the following Formula 1 and carbon (C) is coated on the particle surface of the lithium iron phosphate containing a predetermined amount of sulfur (S). | 01-24-2013 |
20130022867 | ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND MANUFACTURING PROCESS FOR THE SAME - Even in a case where an active material, which exhibits large volumetric changes being accompanied by the absorption and release of lithium, is used, the active material is suppressed from falling down, thereby providing an electrode for lithium-ion secondary battery that exhibits a good cyclability. | 01-24-2013 |
20130029220 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A positive electrode for a rechargeable lithium battery including a current collector and a positive active material layer disposed on the current collector, a method of manufacturing the positive electrode, and a rechargeable lithium battery including the positive electrode. Here, the positive active material layer includes a positive active material and a coating layer on the surface of the positive active material, wherein the coating layer is formed of a coating layer composition including carbon nano particles, polyvinylpyrrolidone, and polyvinylidene fluoride. | 01-31-2013 |
20130029221 | ELECTRODE FOR AN ALKALINE ACCUMULATOR - The invention relates to a composition for electrodes comprising a material M selected from a nickel-based hydroxide and a hydrogen-fixing alloy, and a pentavalent niobium oxide Nb | 01-31-2013 |
20130029222 | POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY COMPRISING THAT POSITIVE ELECTRODE - To provide a sulfur-system positive electrode for lithium-ion battery, sulfur-system positive electrode which is good in the cyclability and the other characteristics, and a lithium-ion secondary battery including that positive electrode. | 01-31-2013 |
20130040195 | ELECTRODE USING THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY, AND NONAQUEOUS ELECTROLYTE BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR WITH NONAQUEOUS ELECTROLYTIC SOLUTION, EACH USING THE ELECTRODE - In an electrode according to the present invention including a three-dimensional network aluminum porous body as a base material, the electrode is a sheet-shaped electrode, and a cell of the three-dimensional network aluminum porous body has an elliptic shape having a minor axis in the thickness direction of the electrode in a cross section parallel to the longitudinal direction and thickness direction of the electrode, and a cell of the three-dimensional network aluminum porous body has an elliptic shape having a minor axis in the thickness direction of the electrode in a cross section parallel to the width direction and thickness direction of the electrode. The electrode is preferably obtained by subjecting the three-dimensional network aluminum porous body to at least a current collecting lead welding step, an active material filling step and a compressing step. | 02-14-2013 |
20130040196 | ELECTROCHEMICAL ELEMENT - It is an object of the present invention to provide an electrochemical element which has a high capacity and is low in cost. The electrochemical element of the present invention is an electrochemical element including an electrode for an electrochemical element, wherein a current collector of positive electrode and/or a current collector of negative electrode is a metal porous body having continuous pores and a mixture containing an active material is filled into the continuous pores. | 02-14-2013 |
20130045417 | NON-AQUEOUS ELECTROLYTE LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery provided by the present invention has a positive electrode having a current collector and a positive electrode composite layer provided on the current collector. The current collector contains a metal element A as a main component thereof. The positive electrode composite layer contains a two-phase compound containing lithium as a positive electrode active material. The positive electrode composite layer also contains as an additive a compound having a metal element B, in a composition thereof, that has a higher ionization tendency than the metal element A. | 02-21-2013 |
20130045418 | METHOD FOR MANUFACTURING GRAPHENE-COATED OBJECT, NEGATIVE ELECTRODE OF SECONDARY BATTERY INCLUDING GRAPHENE-COATED OBJECT, AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE - To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode. At this time, the object serves as an anode. Graphene oxide is attracted to the anode because of being negatively charged, and deposited on the surface of the object to have a practically even thickness. A portion where graphene oxide is deposited is unlikely coated with another graphene oxide. Thus, deposited graphene oxide is reduced to graphene, whereby graphene can be formed to have a practically even thickness on an object having surface with complex unevenness. | 02-21-2013 |
20130052527 | POWER STORAGE DEVICE - A power storage device in which silicon is used as a negative electrode active material layer and which can have an improved performance such as higher discharge capacity, and a method for manufacturing the power storage device are provided. A power storage device includes a current collector and a silicon layer having a function as an active material layer over the current collector. The silicon layer includes a thin film portion in contact with the current collector, a plurality of bases, and a plurality of whisker-like protrusions extending from the plurality of bases. A protrusion extending from one of the plurality of bases is partly combined with a protrusion extending from another one of the plurality of bases. | 02-28-2013 |
20130052528 | POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING ELECTRODE - An electrode and a power storage device each of which achieves better charge-discharge cycle characteristics and is less likely to deteriorate owing to separation of an active material, or the like are manufactured. As the electrode for the power storage device, an electrode including a current collector and an active material layer that is over the current collector and includes a particle containing niobium oxide and a granular active material is used, whereby the charge-discharge cycle characteristics of the power storage device can be improved. Moreover, contact between the granular active material and the particle containing niobium oxide makes the granular active material physically fixed; accordingly, deterioration due to expansion and contraction of the active material which occur along with charge and discharge of the power storage device, such as powdering of the active material layer or its separation from the current collector, can be suppressed. | 02-28-2013 |
20130052529 | PARTICULATE MIXTURE, ACTIVE MATERIAL AGGREGATE, CATHODE ACTIVE MATERIAL, CATHODE, SECONDARY BATTERY AND METHODS FOR PRODUCING THE SAME - A particulate mixture etc., which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. Further, a cathode active material that can undergo charge-and-discharge reaction in room temperature, and comprises lithium
| 02-28-2013 |
20130052530 | ELECTRICAL STORAGE DEVICE ELECTRODE BINDER COMPOSITION, ELECTRICAL STORAGE DEVICE ELECTRODE SLURRY, ELECTRICAL STORAGE DEVICE ELECTRODE, AND ELECTRICAL STORAGE DEVICE - An electrode binder composition that is used to produce an electrode used for an electrical storage device, includes (A) a polymer, (B) a carboxylic acid or a salt thereof, and (C) a liquid medium, and has a concentration of the carboxylic acid or a salt thereof (B) of 20 to 1000 ppm. | 02-28-2013 |
20130059201 | NEGATIVE-ELECTRODE ACTIVE SUBSTANCE FOR ELECTRICITY STORAGE DEVICE, AND NEGATIVE ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICE AND NEGATIVE ELECTRODE FOR ELECTRICITY STORAGE DEVICE WHICH USE THE SAME - Provided is a negative-electrode active material for an electricity storage device, comprising: at least one kind of inorganic material selected from Si, Sn, Al, an alloy comprising any one of Si, Sn, and Al, and graphite; and an oxide material comprising at least one of P | 03-07-2013 |
20130065117 | NOVEL COMPOUND, METHOD FOR PREPARATION OF THE SAME, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a novel compound, a method for preparing the same, and a lithium secondary battery comprising the same. More specifically, disclosed are a compound in which five MO | 03-14-2013 |
20130065118 | CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed herein is a cathode active material for a secondary battery, which includes a combination of one or more selected from compounds represented by Formula 1, one or more selected from compounds represented by Formula 2, and one or more selected from compounds represented by Formula 3, | 03-14-2013 |
20130065119 | LITHIUM ION SECONDARY BATTERY AND PREPARATION PROCESS OF SAME - A separator-type lithium ion secondary battery having large capacity and charge-discharge performance not destroying the separator, even with an active material layer having concavo-convex structure of high aspect ratio. The battery comprises a first electrode comprising a first current collector, and a first active material layer formed by plural convex first active material parts provided on the first current collector, a second electrode comprising a second current collector, and a second active material layer formed by plural convex second active material parts provided on the second current collector, and a separator provided between the first electrode and the second electrode, wherein the first electrode and the second electrode are integrated so that the convex first active material part is faced between the adjacent convex second active material parts, and the convex first active material part does not enter between the convex second active material parts. | 03-14-2013 |
20130065120 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, AND LITHIUM SECONDARY BATTERY - Occlusion and release of lithium ion are likely to one-dimensionally occur in the b-axis direction of a crystal in a lithium-containing composite oxide having an olivine structure. Thus, a positive electrode in which the b-axes of lithium-containing composite oxide single crystals are oriented vertically to a surface of a positive electrode current collector is provided. The lithium-containing composite oxide particles are mixed with graphene oxide and then pressure is applied thereto, whereby the rectangular parallelepiped or substantially rectangular parallelepiped particles are likely to slip. In addition, in the case where the rectangular parallelepiped or substantially rectangular parallelepiped particles whose length in the b-axis direction is shorter than those in the a-axis direction and the c-axis direction are used, when pressure is applied in one direction, the b-axes can be oriented in the one direction. | 03-14-2013 |
20130065121 | STAMPED BATTERY GRID WITH EMBOSSED BORDER AND KINKED GRID WIRES - A grid for a battery having a plurality of spaced apart vertically extending and horizontally extending grid wire elements with each grid wire element having opposed ends joined to one of a plurality of nodes to define a plurality of open spaces and with selected ones of the grid wire elements being joined at one of their ends to frame elements. Oppositely facing sides of the grid wire elements define first and second planes that are parallel to each other. Selected ones of the frame elements have an undulating cross section across the width thereof with an apex of the undulation on one side of the grid being tangential to or terminating at a third plane that is separate from and parallel to the first and second planes. | 03-14-2013 |
20130065122 | SEMI-SOLID ELECTRODE CELL HAVING A POROUS CURRENT COLLECTOR AND METHODS OF MANUFACTURE - An electrochemical cell includes an anode, a semi-solid cathode, and a separator disposed therebetween. The semi-solid cathode includes a porous current collector and a suspension of an active material and a conductive material disposed in a non-aqueous liquid electrolyte. The porous current collector is at least partially disposed within the suspension such that the suspension substantially encapsulates the porous current collector. | 03-14-2013 |
20130065123 | SOLID LITHIUM SECONDARY CELL, AND PRODUCTION METHOD THEREFOR - A solid electrolyte layer and electrode layers are formed within an electrically insulating frame part, and current collecting plates are held by the electrically insulating frame part. Since the current collecting plates are held by the frame part, the shifting or coming-apart of the current collecting plates can be restrained. In order to cause the current collecting plates to be held by the frame part, a powder of material of the electrode layer is filled in between the frame part and the current collecting plates. | 03-14-2013 |
20130065124 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE USED FOR SECONDARY BATTERY, AND METHOD OF MANUFACTURING ELECTRODE - A non-aqueous electrolyte secondary battery includes an electrode body including a positive electrode and a negative electrode superimposed upon each other with a separator interposed therebetween. The negative electrode is superimposed upon the positive electrode in a state where a negative electrode active material layer, except the part on a proximal end part of a negative electrode tab, is positioned inside an outer edge of a positive electrode active material layer of the positive electrode. A width H1 of the negative electrode active material layer including the part on the proximal end part of the negative electrode tab, width H2 of the negative electrode active material layer or negative electrode current collector at a part other than the negative electrode tab, and width H3 of the positive electrode active material layer are formed to satisfy the relationships of H203-14-2013 |
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20130071736 | PHASE SEPARATED SILICON-TIN COMPOSITE AS NEGATIVE ELECTRODE MATERIAL FOR LITHIUM-ION BATTERIES - A composite of silicon and tin is prepared as a negative electrode composition with increased lithium insertion capacity and durability for use with a metal current collector in cells of a lithium-ion battery. This electrode material is formed such that the silicon is present as a distinct amorphous phase in a matrix phase of crystalline tin. While the tin phase provides electron conductivity, both phases accommodate the insertion and extraction of lithium in the operation of the cell and both phases interact in minimizing mechanical damage to the material as the cell experiences repeated charge and discharge cycles. In general, roughly equal atomic proportions of the tin and silicon are used in forming the phase separated composite electrode material. | 03-21-2013 |
20130071737 | LITHIUM IRON TITANIUM PHOSPHATE COMPOSITES FOR LITHIUM BATTERIES - A compound with multiple integrated phases of general formula (1-x)LiFePO | 03-21-2013 |
20130071738 | SOFT PACKAGE LITHIUM BATTERY TAB MATERIAL AND ITS METHOD OF PLATING AND APPLICATION - A tab for soft package lithium battery and its method of plating and application are provided. The tab uses SUS430 stainless steel strip, a copper strip, an aluminum strip or a nickel strip as a substrate. A nickel plating layer is plated on one end of one side of the substrate and a tin plating layer is plated on the nickel plating layer, or the tin plating layer is plated on one end of one side of the substrate directly. The thickness of the nickel plating layer is 0.5-2 um, and the thickness of the tin plating layer is 3-10 um. The tab has a lower manufacturing cost, favorable weldability and appropriate thermal conductivity. | 03-21-2013 |
20130071739 | NEGATIVE ELECTRODE FOR POWER STORAGE DEVICE AND POWER STORAGE DEVICE - Provided is a negative electrode for a power storage device in which charge/discharge capacity is high and deterioration in battery characteristics due to charge/discharge is small. The negative electrode for a power storage device includes a negative electrode active material having a plurality of protrusions and a bar which serves as a connecting bridge over a first protrusion and a second protrusion among the plurality of protrusions. The bar is provided in a direction perpendicular to a direction in which a current collector is bent. An axis of the first protrusion and an axis of the second protrusion are oriented in the same direction. Further, a graphene covering a side surface of the protrusion or covering the side surface of the protrusion and a top surface of the bar may be provided. | 03-21-2013 |
20130071740 | PRESSURE-SENSITIVE ADHESIVE TAPE FOR BATTERY - The present invention relates to a pressure-sensitive adhesive tape for battery containing: a substrate and a pressure-sensitive adhesive layer laminated on at least one surface of a substrate, in which the pressure-sensitive adhesive layer is laminated on the substrate, 0.5 mm or more inside from both edges of the substrate, and in which the pressure-sensitive adhesive tape has a 180° peeling pressure-sensitive adhesive force at 23° C. being 0.1 N/10 mm or more, and has a slippage distance after a pressure-sensitive adhesive layer side of the pressure-sensitive adhesive tape is attached to a phenolic resin plate (attaching area: 10 mm×20 mm), followed by applying a load of 500 g thereto at 40° C. for 1 hour being 0.2 mm or less. | 03-21-2013 |
20130078511 | NEGATIVE ELECTRODE PASTE, NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a negative electrode paste that is used to manufacture a negative electrode of a non-aqueous electrolyte secondary battery including: (A) a silicon-based negative electrode active material; (B) a binder containing at least one of a polyimide resin and a polyamide-imide resin; and (C) an ionic liquid. As a result, there is provided a negative electrode paste that can suppress an entire negative electrode from curling when a negative electrode paste is coated on a current collector and dried, and can produce a negative electrode having excellent cycle characteristics and large battery capacity. | 03-28-2013 |
20130078512 | LITHIUM SECONDARY BATTERY - An objective of the present invention is to provide a lithium secondary battery which can achieve a higher capacity and a longer life without reduction in a lower voltage in the battery. In the present invention, a compound represented by general formula (I) described below is used as a cathode active material, and a compound represented by general formula (II) described below is used as an anode active material, | 03-28-2013 |
20130078513 | THREE-DIMENSIONAL MICROBATTERY HAVING A POROUS SILICON ANODE - An electrical energy storage device ( | 03-28-2013 |
20130078514 | CONDENSED POLYCYCLIC AROMATIC COMPOUND, PRODUCTION PROCESS OF SAME, AND POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY CONTAINING SAME - Provided is a condensed polycyclic aromatic compound, having superior lithium ion responsivity and is suitable for lithium ion secondary battery applications, a production process thereof, a positive electrode active material containing that condensed polycyclic aromatic compound, and a positive electrode for a lithium ion secondary battery provided therewith, and further provided is a lithium ion secondary battery, having high capacity and superior cycling adaptability, that has the positive electrode as a constituent thereof. | 03-28-2013 |
20130084494 | SEPARATOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The separator for non-aqueous electrolyte secondary batteries according to the present invention includes at least a resin (A) having a crosslinked structure. The resin having the crosslinked structure is obtained by applying energy rays to at least an oligomer that is capable of being polymerized by irradiation with energy rays, and the resin (A) has a glass transition temperature higher than 0° C. and lower than 80° C. The separator for non-aqueous electrolyte secondary batteries according to the present invention can be produced using a method of the present invention including the steps of applying a separator-forming composition containing an oligomer and a solvent to a base substrate, forming a resin (A) by irradiation with energy rays, and forming pores by drying a coating film after the resin (A) has been formed. Furthermore, the non-aqueous electrolyte secondary battery of the present invention includes the separator for non-aqueous electrolyte secondary batteries according to the present invention. | 04-04-2013 |
20130084495 | POWER STORAGE DEVICE - Provided is a power storage device in which charge/discharge capacity is high, charge/discharge can be performed at high speed, and deterioration in battery characteristics due to charge/discharge is small. The power storage device includes a negative electrode including an active material including a plurality of prism-like protrusions. A cross section of each of the plurality of prism-like protrusions, which is perpendicular to the axis of each protrusion, is a polygonal shape or a polygonal shape including a curve, such as a cross shape, an H shape, an L shape, an I shape, a T shape, a U shape, or a Z shape. The active material including the plurality of prism-like protrusions may be covered with graphene. | 04-04-2013 |
20130084496 | POWER STORAGE DEVICE - Provided are an electrode for a power storage device having much better charge/discharge characteristics and a power storage device using the electrode. A plurality of cavities is provided in a surface of an active material layer over a current collector. A graphene covering the active material layer facilitates rapid charge/discharge and prevents breakdown of the current collector caused by charge/discharge. With improved charge/discharge characteristics, an electrode for a power storage device which does not easily deteriorate and a power storage device using the electrode can be provided. | 04-04-2013 |
20130084497 | NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE - A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 μm and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m | 04-04-2013 |
20130089780 | METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY - A method for manufacturing a lithium secondary battery includes a first step of dispersing a conductive material in a solvent to prepare a conductive slurry; and a second step of mixing the prepared conductive slurry, a positive electrode active material and a binder to prepare a positive electrode mixture layer-forming slurry; wherein the first step is conducted so that a ratio of a particle size at 10% accumulation to a particle size at 90% accumulation, which are based on a particle size distribution measurement of the conductive material, is 10 or more and 200 or less. | 04-11-2013 |
20130089781 | ELECTRODE ASSEMBLY FOR ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE DEVICE - An object is to provide an electrode assembly for an electric storage device, such as a nonaqueous electrolyte cell, and an electric storage device that are capable of preventing increase of a short-circuit current at the time of occurrence of a short-circuit within a cell and have high safety. In order to achieve the object, provided is an electrode assembly for an electric storage device including a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode, in which at least one of the positive electrode and the negative electrode includes a current collector, an active material layer formed on at least one face of the current collector, and an undercoat layer formed between the current collector and the active material layer and including an organic binder that evaporates and decomposes when heated to a predetermined temperature or more. | 04-11-2013 |
20130089782 | NEGATIVE ELECTRODE ACTIVE MATERIAL WITH IMPROVED SAFETY, AND SECONDARY BATTERY COMPRISING SAME - The present invention relates to a negative electrode active material for an electrode mixture, and to an electrochemical cell comprising the negative electrode active material, wherein the negative electrode active material comprises an amorphous carbonaceous material and a doping element, and exhibits, in the temperature range of 450° C. to 950° C., at least two peaks of derivative weight change calculated by thermogravimetric analysis, and exhibits a maximum heat peak output of 20 mW to 60 mW as measured by differential scanning calorimetry. | 04-11-2013 |
20130095382 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery that includes a negative electrode including a negative active material; a positive electrode including polyacrylonitrile and a positive active material which is capable of fully charging at about 4.3V or more; and a non-aqueous electrolyte. | 04-18-2013 |
20130101896 | RECESSED TAB FOR HIGHER ENERGY DENSITY AND THINNER BATTERIES - Various embodiments are described herein for an electrode assembly for a battery and a method of making the electrode assembly. The electrode assembly comprises an active material layer having a recess formed therein at an outer surface of the active material layer, the recess extending from a side facet of the active material layer toward an interior portion of the active material layer; a current collector layer supported on and in electrical contact with the outer surface of the active material layer; and a tab element supported partially within the recess and in electrical contact with at least one of the active material layer and the current collector layer, the tab element being adapted to provide an electrical connection for the electrode assembly. | 04-25-2013 |
20130101897 | LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - Provided is a lithium secondary battery in which negative-electrode active material particles containing silicon and/or a silicon alloy are used and which prevents the occurrence of breakage of a binder itself and peel-off of the binder at the interfaces with the negative-electrode active material and the negative-electrode current collector and has a high energy density and an excellent cycle characteristic. The lithium secondary battery includes: a negative electrode in which a negative-electrode active material layer including negative-electrode active material particles containing silicon and/or a silicon alloy and a binder is formed on a surface of electrically conductive metal foil serving as a negative-electrode current collector; a positive electrode; and a nonaqueous electrolyte, wherein the binder contains a polyimide resin including a crosslinked structure formed by imidization of a hexavalent or higher-valent carboxylic acid or an anhydride thereof with a diamine. | 04-25-2013 |
20130108921 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD FOR SAME, PRECURSOR FOR POSITIVE ELECTRODE ACTIVE MATERIAL, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING POSITIVE ELECTRODE ACTIVE MATERIAL | 05-02-2013 |
20130108922 | ELECTROLYTIC COPPER FOIL, ELECTROLYTIC COPPER FOIL FOR LITHIUM ION SECONDARY BATTERY, ELECTRODE FOR LITHIUM ION SECONDARY BATTERY USING THE ELECTROLYTIC COPPER FOIL, AND LITHIUM ION SECONDARY BATTERY USING THE ELECTRODE | 05-02-2013 |
20130115512 | BUCKLED SILICON NANOSTRUCTURES ON ELASTOMERIC SUBSTRATES FOR RECHARGEABLE LITHIUM ION BATTERIES - A flexible silicon anode includes a flexible substrate, a layer of silicon with a thickness of 1 μm or less adhered to the flexible substrate, and a current collector in contact with the layer of silicon. A lithium ion battery cell includes a flexible silicon anode, a current collector in contact with the layer of silicon; a lithium cathode; a separator between the silicon anode and the lithium cathode; an electrolyte in contact with the silicon anode and the lithium cathode; and an electrical connection between the silicon anode and the lithium cathode. Forming the flexible silicon anode can include etching a silicon-on-insulator structure to form a silicon layer on the silicon substrate, treating the silicon layer, contacting the treated silicon layer with a flexible substrate, and separating the flexible substrate and the silicon substrate, thereby transferring the treated silicon layer from the silicon substrate to the flexible substrate. | 05-09-2013 |
20130122363 | CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode active material for secondary batteries comprising at least one compound selected from the following formula 1: (1−s−t)[Li(Li | 05-16-2013 |
20130122364 | BINDER FOR SECONDARY BATTERY PROVIDING EXCELLENT ADHESION STRENGTH AND CYCLE PROPERTY - Provided is a binder for secondary battery electrodes comprising a copolymer consisting of 79 to 98% by weight of at least one selected from the group consisting of (a) an ethylenically unsaturated carbonic acid ester monomer and (b) a vinyl monomer and a nitrile monomer, (c) 1 to 20% by weight of an ethylenically unsaturated carbonic acid monomer, and (d) 1 to 20% by weight of a phosphorus (P)-containing monomer including a P═O bond and one or more reactive double bonds in a molecular structure thereof, based on the total weight of the binder. The binder fundamentally improves stability of an electrode in the process of fabricating the electrode, thus providing secondary batteries with superior cycle properties. | 05-16-2013 |
20130122365 | MULTILAYER MATERIAL BASED ON ACTIVE LITHIUM, METHOD OF PREPARATION AND APPLICATIONS IN ELECTROCHEMICAL GENERATORS - A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulomb efficiency. | 05-16-2013 |
20130122366 | CATHODE PLATE FOR SECONDARY BATTERY, MANUFACTURING METHOD THEREOF AND SECONDARY BATTERY PROVIDED WITH THE CATHODE PLATE - Disclosed is a cathode plate for a secondary battery, which includes a collector, and a cathode active material layer, wherein the cathode active material layer is formed of multiple layers of coating films formed on a surface of the collector and obtained by application and drying of an aqueous paste, which is obtained by kneading and dispersing an iron lithium phosphate material having an olivine structure as the cathode active material, an electroconductive material, a water-soluble thickner, a binder, and water as a dispersion medium. | 05-16-2013 |
20130130103 | CATHODE AND LITHIUM BATTERY USING THE SAME - A cathode and a battery including a cathode active material including a layer-structured material having a composition of xLi | 05-23-2013 |
20130130104 | CURRENT COLLECTOR, ENERGY STORAGE ELEMENT, AND METHOD OF MANUFACTURING CURRENT COLLECTOR - A positive electrode current collector includes a terminal connecting portion, a first electrode connecting portion including a first surface extending forward and downward from a right frontal portion, a second electrode connecting portion including a second surface extending forward and downward from a left frontal portion and opposing the first surface, a first twisted portion having an end portion connected to the right frontal portion and the other end portion connected to an upper end portion, and a second twisted portion having an end portion connected to the left frontal portion and the other end portion connected to an upper end portion. A distance between the first surface and the second surface is larger than a distance between the center of the right frontal portion and the center of the left frontal portion. | 05-23-2013 |
20130130105 | NOVEL ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are an electrode active material for lithium secondary batteries, comprising at least one selected from compounds represented by the following formula 1, and a lithium secondary battery comprising the same. | 05-23-2013 |
20130130106 | ACTIVE MATERIAL, ELECTRODE CONTAINING THE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE, AND METHOD FOR MAKING ACTIVE MATERIAL - To provide an active material from which a sufficient discharge capacity is obtained, an electrode containing the active material, a lithium secondary battery including the electrode, and a method for making an active material. A method for making an active material includes a temperature elevation step of heating a mixture containing a lithium source, a pentavalent vanadium source, a phosphoric acid source, water, and a reductant in a hermetically sealed container at a temperature elevation rate T1 from 25° C. to 110° C. and then at a temperature elevation rate T2 from 110° C. to a designated temperature of 200° C. or more, in which T1>T2; T1=0.5 to 10° C./min; and T2=0.1 to 2.2° C./min. | 05-23-2013 |
20130130107 | SECONDARY BATTERY - The secondary battery according to the present invention includes an electrode ( | 05-23-2013 |
20130143116 | Binder Resin for Electrode of Nonaqueous Electrolyte Secondary Battery, Slurry Composition, Electrode for Nonaqueous Electrolyte Secondary Battery, and Nonaqueous Electrolyte Secondary Battery - A binder resin for an electrode of a nonaqueous electrolyte secondary battery is provided, which is used as the binder resin in a slurry composition for an electrode of a nonaqueous electrolyte secondary battery, containing a binder resin, an active material and an organic solvent. | 06-06-2013 |
20130143117 | PASTE FOR FORMING CONDUCTIVE PROTECTION LAYER ON COLLECTOR LAMINATE IN NON-AQUEOUS RECHARGEABLE ELECTRICITY-STORAGE DEVICE - The present invention provides a conductive protective layer-forming paste for current collector laminates which can be used even for high voltage designs to protect current collectors from corroding without loss of cell characteristics, and a current collector laminate, an electrode laminate, and nonaqueous secondary cells (e.g. a lithium secondary cell, an electric double layer capacitor) that include a conductive protective layer formed therefrom. The paste for forming conductive protective layers for current collector protection includes: polytetrafluoroethylene; and a conductive filler (b). The current collector laminate includes: a conductive protective layer (A); and a current collector (B), the conductive protective layer (A) being formed by coating the paste for forming conductive protective layers onto the current collector (B). | 06-06-2013 |
20130149604 | ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS - A secondary battery includes: a cathode including a cathode active material layer on a cathode current collector; an anode; and an electrolytic solution. The cathode active material layer includes spherical active materials each being a secondary particle and planular active materials each being a secondary particle. The spherical active materials are each included in a region closer to the cathode current collector, and the planular active materials are each included in a region farther from the cathode current collector. Primary particles of the spherical active materials have an average particle diameter that is larger than an average particle diameter of primary particles of the planular active materials. | 06-13-2013 |
20130149605 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND MANUFACTURING METHODS THEREOF - A lithium secondary battery which has high charge-discharge capacity, can be charged and discharged at high speed, and has little deterioration in battery characteristics due to charge and discharge is provided. A negative electrode includes a current collector and a negative electrode active material layer. The current collector includes a plurality of protrusion portions extending in a substantially perpendicular direction and a base portion connected to the plurality of protrusion portions. The protrusion portions and the base portion are formed using the same material containing titanium. A top surface of the base portion and at least a side surface of the protrusion portion are covered with the negative electrode active material layer. The negative electrode active material layer may be covered with graphene. | 06-13-2013 |
20130157125 | REINFORCED BATTERY ELECTRODES - The gravimetric and volumetric efficiency of lithium ion batteries may be increased if high capacity materials like tin and silicon may be employed as the lithium-accepting host in the negative electrode of the battery. But both tin and silicon, when fully charged with lithium, undergo expansions of up to 300% and generate appreciable internal stresses which have potential to spall off material from the electrode on each discharge-charge cycle, resulting in a progressive reduction in battery capacity, also known as battery fade. A method of reinforcing such electrode materials by incorporating within them fiber reinforcements or shaped, elongated reinforcements fabricated of shape memory alloy is described. Electrode materials incorporating such reinforcements are less prone to damage under applied stress and so less prone to battery fade. | 06-20-2013 |
20130157126 | ELECTRODE ASSEMBLY OF LITHIUM SECONDARY BATTERY - Disclosed is an electrode assembly of a lithium secondary battery, including an anode plate, a cathode plate, a separator for separating the anode plate and the cathode plate and conducting lithium ions of an electrolyte, and a composite film disposed between the anode plate and the separator and/or between the cathode plate and the separator. The composite film includes 5 to 95 parts by weight of an inorganic clay and 95 to 5 parts by weight of an organic polymer binder. | 06-20-2013 |
20130157127 | ACTIVE MATERIAL FOR RECHARGEABLE BATTERY, RECHARGEABLE BATTERY, AND ELECTRONIC APPARATUS - A rechargeable battery including: a positive electrode; a negative electrode including active material; and an electrolytic solution, in which the active material is capable of occluding and releasing lithium ions and includes Si and O as constituent elements, and an atomic ratio (Si/(Si+O)) of Si with respect to Si and O is 30 atomic % to 75 atomic % in a surface of the active material. | 06-20-2013 |
20130157128 | ELECTRODE FOR LITHIUM BATTERIES AND ITS METHOD OF MANUFACTURE - The electrode for a lithium battery comprises a porous current collector made of woven or nonwoven carbon fibers. | 06-20-2013 |
20130157129 | COATING LIQUID, CONDUCTIVE COATING FILM, ELECTRODE PLATE FOR ELECTRICITY STORAGE DEVICE, AND ELECTRICITY STORAGE DEVICE - Disclosed is a coating formulation useful in forming a conductive coating film on a surface of a collector for constructing an electrode plate for an electricity storage device. The coating formulation contains (A) a polymeric acid, (B) a vinyl carboxylate copolymer represented by the following formula (1): | 06-20-2013 |
20130157130 | METHOD FOR PRODUCING BATTERY ELECTRODE - A main object of the present invention is to provide a method for producing a battery electrode that has excellent adhesion between a collector and an active material layer by suppressing a migration phenomenon. The method for producing a battery electrode of the present invention is a method for producing a battery electrode | 06-20-2013 |
20130157131 | ELECTRICALLY CONDUCTIVE LAYER COATED ALUMINUM MATERIAL AND METHOD FOR MANUFACTURING THE SAME - Provided are an electrically conductive layer coated aluminum material having properties which can withstand long term use; and a method for manufacturing the electrically conductive layer coated aluminum material. The electrically conductive layer coated aluminum material includes: an aluminum material ( | 06-20-2013 |
20130164611 | POWER STORAGE DEVICE - Disclosed is a power storage device including a negative electrode and a positive electrode. The negative electrode includes a negative electrode current collector including a common portion and a plurality of protrusions protruding from the common portion, and a negative electrode active material layer which covers a side surface of the protrusion. The positive electrode faces the negative electrode with an electrolyte provided therebetween. In the plurality of protrusions, a distance between adjacent protrusions is a distance with which adjacent negative electrode active material layers are in contact with each other before the capacity of the negative electrode active material layer reaches the theoretical capacity of the negative electrode active material layer by insertion of carrier ions from the positive electrode. | 06-27-2013 |
20130164612 | NEGATIVE ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, NON-AQUEOUS SECONDARY BATTERY, AND MANUFACTURING METHODS THEREOF - A non-aqueous secondary battery which has high charge-discharge capacity, can be charged and discharged at high speed, and has little deterioration in battery characteristics due to charge and discharge is provided. A negative electrode includes a current collector and an active material layer. The current collector includes a plurality of protrusion portions extending in a substantially perpendicular direction and a base portion connected to the plurality of protrusion portions. The protrusion portions and the base portion are formed using the same material containing titanium. Top surfaces and side surfaces of the protrusion portions and a top surface of the base portion are covered with the active material layer. The active material layer includes a plurality of whiskers. The active material layer may be covered with graphene. | 06-27-2013 |
20130164613 | TERMINAL LEAD - A terminal lead | 06-27-2013 |
20130164614 | CONDUCTIVE COMPOSITION FOR COATING A CURRENT COLLECTOR FOR A BATTERY OR AN ELECTRICAL DOUBLE LAYER CAPACITOR, CURRENT COLLECTOR FOR BATTERY OR ELECTRICAL DOUBLE LAYER CAPACITOR, BATTERY, AND ELECTRICAL DOUBLE LAYER CAPACITOR - A conductive composition for coating a current collector of coating a current collector for a battery or an electrical double layer capacitor, where the adhesion properties between a battery current collector and an active material layer are increased to improve the battery characteristics is presented. A battery using the battery current collector using the composition is also presented. The conductive composition for coating the current collector includes a vinylsilane copolymer, a polycarboxylic acid, and a conductive auxiliary. The formulation of the vinylsilane copolymer is also presented. | 06-27-2013 |
20130171515 | ANODE MATERIAL AND ANODE ELECTRODE PLATE - An anode material is provided for a surface of an electrode. The anode material comprises carbon-containing substrates and unsaturated compounds. At least one chemical bond is formed between the unsaturated compounds and the surfaces of the carbon-containing substrates. | 07-04-2013 |
20130171516 | LITHIUM ION BATTERY ELECTRODE - A lithium ion battery electrode includes an electrode material layer. The lithium ion battery electrode further includes a current collector. The current collector is located on a surface of the electrode material layer. The current collector is a carbon nanotube layer. The carbon nanotube layer consists of a number of carbon nanotubes. | 07-04-2013 |
20130171517 | CURRENT COLLECTOR, ELECTRODE OF ELECTROCHEMICAL BATTERY, AND ELECTROCHEMICAL BATTERY USING THE SAME - A current collector includes a metal foil and a graphene film coated on a surface of the current collector. An electrode of an electrochemical battery includes the current collector and an electrode active material layer coated on a surface of the current collector. An electrochemical battery is also provided which including the electrode. | 07-04-2013 |
20130171518 | CATHODE ACTIVE MATERIAL FOR SECONDARY BATTERIES - Disclosed is a cathode active material represented by the following Formula 1, the cathode active material being in the form of a solid solution or a composite, and a secondary battery including the cathode active material. | 07-04-2013 |
20130171519 | ELECTRODE COLLECTOR MATERIAL AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a method and so on for manufacturing an electrode collector which enables rapid charge and discharge and can be used in battery or capacitor electrodes. The invention is directed to an electrode collector that has fine titanium oxide particles having a large specific surface and surface-modified by means of an organic liquid metal such as vanadium, and to a method for manufacturing the same. This electrode collector can implement a collector with excellent rapid charge and discharge for use in batteries and capacitors. The fine titanium oxide particles may have an anatase-type crystal structure. These electrode collectors can be used as electrodes, lithium-ion batteries and capacitors. | 07-04-2013 |
20130171520 | AQUEOUS POLYIMIDE PRECURSOR SOLUTION COMPOSITION AND METHOD FOR PRODUCING AQUEOUS POLYIMIDE PRECURSOR SOLUTION COMPOSITION - A method for producing an aqueous polyimide precursor solution composition, including reacting a tetracarboxylic dianhydride and a diamine, which has a solubility in water at 25° C. of 0.1 g/L or more, in the presence of an imidazole, using water as a reaction solvent to provide an aqueous polyimide precursor solution composition. | 07-04-2013 |
20130171521 | POSITIVE ELECTRODE FOR SECONDARY CELL - A positive electrode for secondary cell comprising a current collector which is comprised of aluminum or an aluminum alloy and a positive electrode active material layer, wherein the positive electrode active material layer contains a positive electrode active material, a water-based binder, an organic phosphonic acid compound, and a polyvalent metal compound is provided. According to the present invention, a positive electrode for secondary cell which is high in initial capacity and excellent in rate characteristics and high temperature cycle characteristics can be provided. | 07-04-2013 |
20130177804 | METHODS FOR MAKING BATTERY ELECTRODE SYSTEMS - Methods for making battery electrode system are disclosed herein. In an example of the method, a mixture of a polymer binder, an active material and a conductive filler is deposited on a current collector. The deposited mixture is exposed to an external field having a field direction that is normal to a surface of the current collector. The exposure aligns, outward from and normal to the surface of the current collector, the active material and the conductive filler to form a plurality of discrete structures that extend outward from and normal to the surface of the current collector and are respectively aligned with a field line of the external field. Each of the plurality of discrete structures includes some of the active material and some of the conductive filler. | 07-11-2013 |
20130183581 | SUBSTRATE FOR ELECTRODE OF ELECTROCHEMICAL CELL - An improved substrate is disclosed for an electrode of an electrochemical cell. The improved substrate includes a core material surrounded by a coating. The coating is amorphous such that the coating includes substantially no grain boundaries. The core material may be one of lead, fiber glass, and titanium. The coating may be one of lead, lead-dioxide, titanium nitride, and titanium dioxide. Further, an intermediate adhesion promoter surrounds the core material to enhance adhesion between the coating and the core material. | 07-18-2013 |
20130189575 | POROUS SILICON BASED ANODE MATERIAL FORMED USING METAL REDUCTION - A porous silicon based material comprising porous crystalline elemental silicon formed by reducing silicon dioxide with a reducing metal in a heating process followed by acid etching is used to construct negative electrode used in lithium ion batteries. Gradual temperature heating ramp(s) with optional temperature steps can be used to perform the heating process. The porous silicon formed has a high surface area from about 10 m | 07-25-2013 |
20130189576 | FADE-RESISTANT HIGH CAPACITY ELECTRODES FOR A LITHIUM-ION BATTERY - The gravimetric and volumetric efficiency of lithium ion batteries may be increased if higher capacity materials like tin and silicon are substituted for carbon as the lithium-accepting host in the negative electrode of the battery. But both tin and silicon, when fully charged with lithium, undergo expansions of up to 300% and generate appreciable internal stresses. These internal stresses, which will develop on each discharge-charge cycle, may lead to a progressive reduction in battery capacity, also known as battery fade. The effects of the internal stresses may be significantly reduced by partially embedding tin or silicon nanowires in the current collector. Additional benefit may be obtained if a 5 to 50% portion of the nanowire length at its embedded end are coated or masked with a composition which impedes lithium diffusion. Methods for embedding and masking the nanowires are described. | 07-25-2013 |
20130189577 | APPARATUS AND METHOD FOR HOT COATING ELECTRODES OF LITHIUM-ION BATTERIES - A method and apparatus for fabricating high-capacity energy storage devices is provided. In one embodiment, a deposition system for manufacturing energy storage electrodes is provided. The deposition system comprises a transfer mechanism for transferring a substrate, an active material supplying assembly for depositing an electro-active powder mixture onto the substrate, and a heat source for drying the as-deposited electro-active powder mixture. | 07-25-2013 |
20130189578 | CATHODE ACTIVE MATERIAL COMPRISING LITHIUM MANGANESE-BASED OXIDE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY BASED UPON THE SAME - Disclosed is a cathode active material including a lithium manganese-based oxide. The lithium manganese-based oxide has a spinel structure represented by Formula 1 below and high lithium ion diffusivity since (440) planes are predominantly formed in a crystal structure thereof. | 07-25-2013 |
20130196226 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME - A secondary battery includes an electrode assembly, which has improved safety by reducing a density of an active material centrally positioned in the electrode assembly. In the secondary battery, an electrode assembly includes a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate, the first electrode plate including a first electrode current collector and a first active material layer on the first electrode current collector, the first active material layer including a first active material, a binder and a conductive agent, and a portion of the first active material layer at a central portion of the electrode assembly including the first active material at a lower density than a density of the first active material at a portion of the first active material layer at a peripheral portion of the electrode assembly. | 08-01-2013 |
20130196227 | POSITIVE ELECTRODE, METHOD OF MANUFACTURING THE SAME, AND LITHIUM BATTERY COMPRISING THE POSITIVE ELECTRODE - A positive electrode including a current collector and a positive active material layer formed on the current collector, wherein the positive active material layer includes a positive active material, a conductive agent, and the boron-containing inorganic binder having a network structure; a method of manufacturing the same; and a lithium battery including the positive electrode. | 08-01-2013 |
20130196228 | BATTERY - A battery includes an electrode plate, an electrode terminal that has a curved end face, and a connecting portion that electrically connects the electrode plate and the curved end face and that is physically connected to the curved end face along the shape of the curved end face. | 08-01-2013 |
20130196229 | ENERGY STORAGE ELEMENT, METAL COMPONENT, AND ENERGY STORAGE ELEMENT MANUFACTURING METHOD - An energy storage element includes: a metal component that is a metal plate member that includes a protrusion extending from a surface of the metal plate member, and is provided as a portion of a container. The protrusion includes: a tubular portion provided at a tip end of the protrusion in an extending direction, and a base portion that is solid and extends from the surface of the metal component to the tubular portion in the extending direction. | 08-01-2013 |
20130196230 | COATING SOLUTION, ELECTRIC COLLECTOR, AND METHOD FOR PRODUCING ELECTRIC COLLECTOR - A coating solution comprising (A) water or a mixed solvent of water and an organic solvent, (B) an electrical conducting material, and (C) at least one selected from the group consisting of polysaccharides and polysaccharide derivatives as essential components, and (D) at least one selected from the group consisting of a polybasic organic acid and a polybasic organic acid derivative as an optional component, wherein mass W | 08-01-2013 |
20130202961 | CATHODE UNIT FOR AN ALKALI METAL/SULFUR BATTERY - The present invention relates to a cathode unit for an alkali metal-sulphur battery, comprising:
| 08-08-2013 |
20130209874 | CLAD MATERIAL - The clad material comprises outer layers each consisting of Ni or Ni alloy and a base layer consisting of Cu or Cu alloy, and is characterized in that peeling-off at a clad boundary is not recognized in cross section observation made after the clad material has been subjected to a 90° reverse bend test ten times, and the number of reverse bend cycles before rupture is 17 cycles or more. The clad material has with both of excellent corrosion resistance against electrolytic solution and high electric conductivity. | 08-15-2013 |
20130209875 | ELECTRODE BINDER COMPOSITION, ELECTRODE SLURRY, ELECTRODE, AND ELECTRICAL STORAGE DEVICE - An electrode binder composition is used to produce an electrode used for an electrical storage device, and includes (A) a polymer, (B) a compound represented by the following general formula (1), and (C) a liquid medium, the polymer (A) being fluorine-containing polymer particles or diene polymer particles, and a concentration of the compound (B) in the electrode binder composition being 5 to 500 ppm. | 08-15-2013 |
20130209876 | Binder For Secondary Battery Exhibiting Excellent Adhesion Force - Provided is a binder for secondary battery electrodes comprising polymer particles obtained by polymerizing three or more kinds of monomers wherein the polymer particles have a mean particle diameter of 0.3 μm to 0.7 μm. The binder exhibits superior adhesion force to electrode current collectors and excellent support force to the active material and basically improves safety of electrodes, thus providing a secondary battery with superior cycle characteristics. | 08-15-2013 |
20130209877 | FLEXIBLE BATTERY ELECTRODES AND THE PRODUCTION THEREOF - A paste for producing electrodes for lithium ion batteries includes as electrochemically active material particles of at least one of a metal/semimetal selected from the group consisting of silicon, aluminium, antimony, tin, cobalt and carbon-based particles which intercalate lithium, a binder based on a polysaccharide, water as a solvent, and an aliphatic polyester having a molar mass of 150 to 500 g/mol or an hydroxycarboxylic ester having a molar mass of 150 to 500 g/mol as a plasticizer. | 08-15-2013 |
20130209878 | NONAQUEOUS SECONDARY CELL AND METHOD OF MANUFACTURING THE SAME - A thin nonaqueous secondary cell has high stability where a positive charge collector and a negative charge collector also serve as outer covering members. A sealing layer concurrently achieves high adhesiveness with both electrode charge collectors, high reliability preventing of short circuits, and satisfactory gas barrier properties. The nonaqueous secondary cell includes a positive charge collector containing aluminum as a primary component, a positive electrode layer formed on the positive charge collector, a negative charge collector containing copper as a primary component, a negative electrode layer formed on the negative charge collector so the negative electrode layer opposes the positive electrode layer, and a separator including an electrolyte between positive and negative electrode layers. Inner surfaces of a peripheries of positive and negative charge collectors are connected while a sealing material including a multilayered structure is interposed between the inner surfaces of the peripheries of the two charge collectors. | 08-15-2013 |
20130209879 | SECONDARY BATTERY - A secondary battery | 08-15-2013 |
20130209880 | Positive Electrode for Lithium-Sulfur Secondary Battery and Method of Forming the Same - Provided are a positive electrode for a lithium-sulfur secondary battery and a method of forming the same, the positive electrode being capable of maintaining battery characteristics such as a specific capacity and a cycling characteristic while achieving a high rate characteristic in particular when being applied to a lithium-sulfur secondary battery. A positive electrode of a lithium-sulfur secondary battery includes a positive electrode current collector and carbon nanotubes grown on a surface of the positive electrode current collector and oriented in a direction orthogonal to the surface. At least the surface of each of the carbon nanotubes is covered with sulfur with a certain interstice left between neighboring ones of the carbon nanotubes. | 08-15-2013 |
20130216902 | CARBON-COATED LITHIUM IRON PHOSPHATE OF OLIVINE CRYSTAL STRUCTURE AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed is a lithium iron phosphate with an olivine crystal structure wherein the lithium iron phosphate has a composition represented by the following Formula 1 and carbon (C) is coated on the surface of the lithium iron phosphate by chemical bonding via a heterogeneous element other than carbon. Li | 08-22-2013 |
20130216903 | NON-AQUEOUS SECONDARY BATTERY HAVING A BLENDED CATHODE ACTIVE MATERIAL - An electrochemically active material comprising a mixture or blend of two groups of particles, exhibits synergetic effect. The two groups of particles are compounds of formula Li | 08-22-2013 |
20130216904 | METHOD FOR FORMING A MICROBATTERY - A method for forming a microbattery including, on a surface of a first substrate, one active battery element and two contact pads, this method including the steps of: a) forming, on a surface of a second substrate, two contact pads with a spacing compatible with the spacing of the pads of the first substrate; and b) arranging the first substrate on the second substrate so that the surfaces face each other and that the pads of the first substrate at least partially superpose to those of the second substrate, where a portion of the pads of the second substrate is not covered by the first substrate. | 08-22-2013 |
20130216905 | ELECTRODE ACTIVE MATERIAL LAYER, ELECTRODE BODY, LITHIUM-ION SECONDARY BATTERY, AND METHOD OF PRODUCING ELECTRODE ACTIVE MATERIAL LAYER - An electrode active material layer for a lithium-ion secondary battery is formed from an electrode active material of layered crystal. The electrode active material having layered crystal is oriented in a layer direction of the electrode active material layer, and a plurality of through holes are formed from the surface of the electrode active material layer. The diameter of the through holes is preferably 10 μm to 5000 μm inclusive. | 08-22-2013 |
20130216906 | BINDER FOR SECONDARY BATTERY EXIBITING EXCELLENT ADHESION FORCE - Provided is a binder for secondary battery electrodes comprising a polymer obtained by polymerizing three or more kinds of monomers with a reactive emulsifying agent. The binder reduces moisture impregnation, improves dispersibility and enhances adhesive force, thus providing a secondary battery with superior safety and cycle characteristics. | 08-22-2013 |
20130216907 | POROUS ELECTROACTIVE MATERIAL - A composition including a plurality of electroactive porous particle fragments including silicon as an electroactive material is characterised in that each porous particle fragment includes a network of pores defined and separated by silicon containing walls. The network of pores suitably has a three dimensional arrangement of pores extending through the volume of the particle in which the pore openings are provided on two or more planes over the surface of the particle. The composition is useful as an electroactive material that is able to form an alloy with lithium and can be used in the fabrication of anodes for use in lithium ion secondary batteries. A method of fabricating the silicon containing porous particle fragments is also disclosed. | 08-22-2013 |
20130216908 | NONAQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in a charge/discharge property at a time of battery use is provided. In a lithium-ion secondary battery | 08-22-2013 |
20130224580 | LITHIUM BATTERY HAVING ELECTRODE TABS WITH SAFE MODIFICATION - The invention relates to a lithium battery having electrode tabs with safe modification. The lithium battery comprises a cathode plate having a cathode electrode tab, an anode plate having an anode electrode tab, and a separator strip interposed between the cathode plate and the anode plate, wherein the cathode electrode tab and the anode electrode tab have insulation layers coating on predetermined areas. | 08-29-2013 |
20130224581 | NEGATIVE ELECTRODE OF POWER STORAGE DEVICE AND POWER STORAGE DEVICE - A mixture of amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO | 08-29-2013 |
20130224582 | METAL FOIL FOR NEGATIVE ELECTRODE COLLECTOR - The main object of the present invention is to provide a metal foil for a negative electrode collector, by which it is possible to achieve a lower resistance value. | 08-29-2013 |
20130224583 | ELECTROACTIVE MATERIAL - A composition for use in a lithium ion battery includes a plurality of elongate elements and a plurality of particles. The elongate elements and particles each include a metal or semi-metal selected from one or more of the group including silicon, tin, germanium, aluminium or mixtures thereof. The composition may include additional ingredients such as a binder, a conductive material and a further electro-active material, such as graphite. The compositions can be used for the fabrication of electrodes, preferably anodes in the manufacture of lithium ion batteries and optionally batteries based on magnesium ions or sodium ions. The composition is able to intercalate and release lithium during the charging and discharging cycles respectively of a battery into which it has been incorporated. Methods of fabricating the composition and electrodes including the composition are included as well as electrodes thus prepared and devices including such electrodes. | 08-29-2013 |
20130224584 | ELECTRODE INCLUDING MULTI-LAYERED ELECTRODE ACTIVE MATERIAL LAYER AND SECONDARY BATTERY INCLUDING THE SAME - The present invention relates to an electrode comprising multi-layered electrode active material layer and a secondary battery comprising the same. According to the embodiments of the present invention comprises electrode having multi-layered electrode active material layer, wherein the content of the active materials which forms the electrode active material layers is equally maintained and the loading amounts at each layer are either the same or different from each other, thereby solving the problem of performance deterioration caused by an increase in battery resistance due to non-uniform dispersion of a binder or the like. | 08-29-2013 |
20130224585 | HIGH-CAPACITY CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided is a cathode active material including lithium manganese-based oxide, wherein the lithium manganese-based oxide has a layered crystal structure, has a content of manganese (Mn) greater than contents of other transition metal(s), includes 1 mole or more of lithium (Li) with respect to 1 mole of lithium transition metal oxide, has a plateau potential range in which lithium deintercalation as well as oxygen release occurs during initial charging in a high voltage range of 4.4 V or more, has domains included in the layered crystal structure exhibiting electrochemical activity due to a structural change in a potential range of 3.5 V or less after the initial charging, and includes conductive materials for improving electrical conductivity of the lithium manganese-based oxide in a potential range of 3.5 V or less after the initial charging. | 08-29-2013 |
20130224586 | SECONDARY BATTERY - A porosity X of a positive electrode mixture layer | 08-29-2013 |
20130224587 | CONDUCTIVE UNDERCOATING AGENT COMPOSITION - A task of the present invention is to solve the problem in that the conductive undercoating agent composition for coating a current collector has so poor electrochemical durability that the conductive undercoating agent composition is peeled off the current collector after a long-term reliability test. A conductive undercoating agent composition for a current collector for a battery or electrical double layer capacitor, which comprises a polymer having a substituent capable of bonding to an active hydrogen group, inorganic particles having an active hydrogen group, and a conductive agent. | 08-29-2013 |
20130224588 | ELECTRODE MIXTURE PASTE, ELECTRODE, AND NON-AQUEOUS ELECTROLYTE RECHARGEABLE BATTERY - The present invention provides an electrode mixture paste containing an electrode active material, a conductive material, a binder, and an organic solvent. The electrode active material has a sodium-containing transition metal compound, the binder has a polymer soluble to the organic solvent, and the polymer does not have a structural unit derived from vinylidene halide. | 08-29-2013 |
20130224589 | METHOD FOR PRODUCING ALUMINUM FOIL - A method for producing an aluminum foil of the present invention is characterized in that an aluminum film is formed on a surface of a substrate by electrolysis using a plating solution containing at least (1) a dialkyl sulfone, (2) an aluminum halide, and (3) at least one nitrogen-containing compound selected from the group consisting of an ammonium halide, a hydrogen halide salt of a primary amine, a hydrogen halide salt of a secondary amine, a hydrogen halide salt of a tertiary amine, and a quaternary ammonium salt represented by the general formula: R | 08-29-2013 |
20130224590 | ELECTROCHEMICALLY-CONDUCTIVE ARTICLES INCLUDING CURRENT COLLECTORS HAVING CONDUCTIVE COATINGS AND METHODS OF MAKING SAME - Electrically-conductive articles are provided that include a current collector ( | 08-29-2013 |
20130230772 | POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING ELECTRODE - As an electrode for a power storage device, an electrode including a current collector, a first active material layer over the current collector, and a second active material layer that is over the first active material layer and includes a particle containing niobium oxide and a granular active material is used, whereby the charge-discharge cycle characteristics and rate characteristics of the power storage device can be improved. Moreover, contact between the granular active material and the particle containing niobium oxide makes the granular active material physically fixed; accordingly, deterioration due to expansion and contraction of the active material which occur along with charge and discharge of the power storage device, such as powdering of the active material or its separation from the current collector, can be suppressed. | 09-05-2013 |
20130230773 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in a charge/discharge property or lowering in an energy density at a time of battery use is provided. The lithium-ion secondary battery | 09-05-2013 |
20130236778 | ELECTRODE BINDING MATERIAL WITH Li, Na, K SUBSTITUTED FOR POLYACRYLIC ACID FUNCTIONAL GROUP (COOH) AND A LITHIUM SECONDARY BATTERY USING THE SAME - The present invention is based on an electrode binding material including polyacrylics and a functional group substituent(Li, Na, K) as a binder of an electrode. The present invention provides a polyacrylic acid an electrode binding material including a polyacrylics mixture having a high degree of polymerization and a functional group with Li, Na or K being substituted and high efficiency Lithium secondary battery utilizing a silicon anode active material etc. using the same. Therefore, the electrode binding material of the present invention has an excellent binding force, and can reduce side reactions in reactions of a secondary battery, and maintain a stable cycle property, and also enhance electric performance. | 09-12-2013 |
20130236779 | ELECTRODE STRUCTURE, METHOD FOR PRODUCING SAME, AND BIPOLAR BATTERY - An electrode structure includes a substrate, an electrode active material layer formed on the substrate and divided into a plurality of portions on a side of a surface thereof, and a high resistance member having an electric resistance higher than that of an electrolyte. The high resistance member is formed on at least a part of a parting portion formed between the divided portions of the electrode active material layer. A method for producing an electrode structure, and a bipolar battery using the electrode structure are also disclosed. | 09-12-2013 |
20130236780 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator, wherein the positive electrode includes a positive electrode current collector and a positive electrode material mixture layer formed on one or both sides of the positive electrode current collector, the positive electrode material mixture layer has a thickness greater than 80 μm per side of the positive electrode current collector, the positive electrode material mixture layer includes a positive electrode active material, the positive electrode active material is composed of secondary particles formed by aggregation of primary particles, the secondary particles have an average particle size of 6 μm or less, and, when diffraction-line integrated intensities of the (003) plane and the (104) plane in an X-ray diffraction chart of the positive electrode material mixture layer are I003 and I104, respectively, the ratio I003/I104 of the integrated intensities is 1.1 or more. | 09-12-2013 |
20130236781 | NEGATIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY - A negative electrode for a secondary battery and a secondary battery using the negative electrode are provided. The negative electrode includes a current collector, an active material layer, and a high molecular material layer. The current collector includes a plurality of protrusion portions extending substantially perpendicularly and a base portion which includes the same material as the plurality of protrusion portions and is connected to the plurality of protrusion portions. The protrusion portions and the active material layer covering the protrusion portions form negative electrode protrusion portions. The base portion and the active material layer covering the base portion form a negative electrode base portion. Part of side surfaces of the negative electrode protrusion portions including basal portions thereof and a top surface of the negative electrode base portion are covered with the high molecular material layer. | 09-12-2013 |
20130236782 | ELECTRODE - An electrode including a collector layer, an active material layer, and a bonding layer is disclosed. The collector layer is made of an electric conductor. The active material layer includes active material particles that stores charge, a conduction assistant that transports the charge stored in the active material particles to the collector layer, and a binder that binds the active material particles with the conduction assistant. The active material layer has a first surface relatively distal from the collector layer and a second surface opposing the first surface and relatively proximal to the collector layer. The projections and recesses are formed on the first surface side. The bonding layer bonds the collector layer and the active material layer. | 09-12-2013 |
20130236783 | POSITIVE ELECTRODE MATERIAL MIXTURE, AND POSITIVE ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY AND SECONDARY BATTERY, EMPLOYING IT - To provide a positive electrode material mixture for a non-aqueous secondary battery, which is less likely to be gelled and has a good applicability to a current collector, and is capable of producing a battery capable of sufficiently exhibiting practical performance. A positive electrode material mixture which comprises a cathode active material, a binder containing a fluorinated copolymer having polymerized units derived from tetrafluoroethylene and polymerized units derived from propylene, and an aqueous medium, wherein the cathode active material is that the pH of a supernatant obtained by mixing the cathode active material with water is at least 10, and a positive electrode and a secondary battery, obtainable by employing it. | 09-12-2013 |
20130244103 | ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND BINDER FOR ELECTRODE - An electrode for a nonaqueous electrolyte secondary battery of an embodiment includes: a current collector; and an active material layer including an active material and a binder, formed on the current collector, wherein the binder includes at least an olefin based polymer and a fatty acid, and the fatty acid has a melting point of 25° C. or less and a boiling point of 100° C. or more. | 09-19-2013 |
20130244104 | METHOD FOR PRODUCING NONAQUEOUS SECONDARY BATTERY ELECTRODE, NONAQUEOUS SECONDARY BATTERY, AND DRYING DEVICE - A method for producing a nonaqueous secondary battery electrode of the present invention includes: a coating formation step of applying an electrode mixture layer-forming composition containing an active material and a solvent onto a current collector so as to form a coating of the composition; an introducing step of introducing the current collector with the coating in a drying oven; and a drying step of drying the coating by irradiating the coating in the drying oven with near-infrared electromagnetic waves having a peak of a wavelength distribution in a range of 1 to 5 μm so as to form an electrode mixture layer. In the drying step, a temperature of the coating is set higher than a temperature in the drying oven by a range of 65° C. to 115° C. | 09-19-2013 |
20130244105 | POSITIVE ACTIVE MATERIAL FOR SECONDARY BATTERY OF IMPROVED RATE CAPABILITY - Disclosed is a novel cathode active material for secondary batteries. More specifically, disclosed is a cathode active material for secondary batteries that reduces deintercalation of oxygen from a crystal structure of Li2MnO3 at a high voltage of 4.3V to 4.6V through incorporation of excess lithium in a transition metal cation layer. | 09-19-2013 |
20130244106 | PROCESS FOR PREPARATION OF ANODE ACTIVE MATERIAL - Disclosed is a method for preparing an anode active material comprising a core composed of a crystalline carbon-based material, and a composite coating layer comprising (a) mixing a precursor for a raw material of one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon with silicon oxide enabling intercalation and deintercalation of ions, followed by purification, to prepare a mixture for coating, (b) mixing the mixture for coating with a crystalline carbon-based material to prepare a core-shell precursor comprising the raw material mixture for coating applied to the core composed of the crystalline carbon-based material, and (c) baking the core-shell precursor to carbonize the raw material of the one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon into the one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon. | 09-19-2013 |
20130244107 | Hybrid Energy Storage Devices - A novel hybrid lithium-ion anode material based on coaxially coated Si shells on vertically aligned carbon nanofiber (CNF) arrays. The unique cup-stacking graphitic microstructure makes the bare vertically aligned CNF array an effective Li | 09-19-2013 |
20130244108 | Total Solid Battery and Method of Producing the Same - A method of producing a total solid battery by stacking a molded body of each of a positive electrode material, a solid electrolyte material, a negative electrode material, and a collector material and firing the stacked body. The firing step includes a first firing step of firing the stacked body in an inert atmosphere and, after the first firing step, a second firing step of firing the stacked body in an atmosphere containing oxygen. | 09-19-2013 |
20130244109 | SOLID ELECTROLYTE CELL AND POSITIVE ELECTRODE ACTIVE MATERIAL - The present technology is able to provide a solid electrolyte cell that uses a positive electrode active material which has a high ionic conductivity in an amorphous state, and a positive electrode active material which has a high ionic conductivity in an amorphous state. The solid electrolyte cell has a stacked body, in which, a positive electrode side current collector film, a positive electrode active material film, a solid electrolyte film, a negative electrode potential formation layer and a negative electrode side current collector film are stacked, in this order, on a substrate. The positive electrode active material film is made up with an amorphous-state lithium phosphate compound that contains Li; P; an element M | 09-19-2013 |
20130252087 | CATHODE AND A CATHODE ACTIVE MATERIAL PLATE FOR A LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THESE - The present invention relates to a cathode and a cathode active material plate for a lithium secondary battery, and the production method thereof. There is a feature of the present invention in that grooves consisting of a concave portion and having an infinite form (for example, an infinite cell-like shape) in a planar view are formed in a principal surface of the cathode active material plate. | 09-26-2013 |
20130252088 | 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. | 09-26-2013 |
20130252089 | POWER STORAGE DEVICE AND ELECTRIC DEVICE - Provided is a power storage device having a high discharge capacitance and a light-transmitting property. The power storage device includes a first current collector having a net-like planar shape; a first active material layer over the first current collector; a solid electrolyte layer over the first active material layer; a second active material layer over the solid electrolyte layer; and a second current collector over the second active material layer. | 09-26-2013 |
20130252090 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in capacity or output at a time of battery use is provided. In a lithium-ion secondary battery | 09-26-2013 |
20130252091 | Lithium Ion Battery Electrode and Its Fabrication Method - The present invention is aimed to provide a complex electrode for a lithium ion battery, consisting of: an electro-conductive current collector with porous three-dimensional network construction, the electrode active materials filled in the porous current collector, and a porous ionic conductive polymer binder coated in the pores of the current collector holding the electrode materials. In the abovementioned lithium ion battery complex electrode construction, the current collector connects with the electrode active materials through its highly porous three-dimensional backbone network and thus greatly improves the utilization of the electrode active materials and obtains high area density and low impedance of the electrode. Another objective of this invention is to disclose a novel electrode fabrication technique for lithium ion batteries. | 09-26-2013 |
20130252092 | Lithium Ion Battery - The present invention is related with a novel fabrication technique for a lithium ion battery, consisting of a cathode layer and an anode layer. The cathode and the anode layer are configured through a separator in between. The cathode or the anode layer comprises: a current collector with porous three-dimensional network construction; an electrode active material, filled in the pores and onto the both sides of the abovementioned current collector; and a layer of porous ionic conductive polymer layer, coated on the abovementioned current collector holding the electrode material. In the abovementioned lithium ion battery, the cathode or the anode layer comprises both the current collector and the electrode material. The current collector connects with the electrode material through its porous three-dimensional network and thus improves the active material utilization, capacity and energy density of the lithium ion battery. | 09-26-2013 |
20130252093 | MULTILAYER-STRUCTURED CARBON MATERIAL FOR NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, AND PROCESS FOR PRODUCING MULTILAYER-STRUCTURED CARBON MATERIAL FOR NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY NEGATIVE ELECTRODE - The present invention resolves the problem by using a multilayer-structured carbon material, as a nonaqueous electrolytic solution secondary battery negative electrode, which satisfies the following (a) and (b):
| 09-26-2013 |
20130252094 | SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL, SECONDARY BATTERY NEGATIVE ELECTRODE, METHOD FOR MANUFACTURING SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL, AND METHOD FOR MANUFACTURING SECONDARY BATTERY NEGATIVE ELECTRODE - This secondary battery negative electrode material constitutes an active material layer formed on a current collector layer of a secondary battery negative electrode and includes a Si particle and a coating material containing Ni and P, formed to cover a surface of the Si particle. | 09-26-2013 |
20130260230 | LOCALIZED HEAT TREATMENT OF BATTERY COMPONENT FILMS - A battery fabrication method includes forming on a substrate, at least a portion of a battery cell having a plurality of battery component films that include an underlying film with an overlying metal-containing film. A beam incident area of the metal-containing film is locally heated by directing onto the metal-containing film, an energy beam maintained at a fluence of at least about 800 J/cm | 10-03-2013 |
20130260231 | LITHIUM-ION BATTERIES AND CATHODE MATERIALS THEREOF - The invention provides a type of lithium-ion battery cathode materials applicable to a high charge cut-off voltage. The cathode materials comprises two active substances of LiCoO | 10-03-2013 |
20130260232 | Alkali and Alkaline-Earth Ion Batteries with Hexacyanometallate Cathode and Non-Metal Anode - A battery structure is provided for making alkali ion and alkaline-earth ion batteries. The battery has a hexacyanometallate cathode, a non-metal anode, and non-aqueous electrolyte. A method is provided for forming the hexacyanometallate battery cathode and non-metal battery anode prior to the battery assembly. The cathode includes hexacyanometallate particles overlying a current collector. The hexacyanometallate particles have the chemical formula A′ | 10-03-2013 |
20130260233 | LITHIUM BATTERY ANODE HAVING PROTECTIVE FILM MADE UP OF INORGANIC PARTICLES AND LITHIUM BATTERY - A longer-lasting lithium battery anode includes a current collector, an anode active material layer, and a protective film. The anode active material layer is coated on the current collector. The protective film is coated on the anode active material layer, and the protective film consists of inorganic particles. | 10-03-2013 |
20130260234 | LITHIUM BATTERY CATHODE HAVING PROTECTIVE FILM MADE UP OF INORGANIC PARTICLES AND LITHIUM BATTERY - A longer-lasting lithium battery cathode includes a current collector, a cathode active material layer, and a protective film. The cathode active material layer is coated on the current collector. The protective film layer is coated on the cathode active material layer, and the protective film layer consists of inorganic particles. | 10-03-2013 |
20130260235 | Electrodes, Batteries, Electrode Production Methods, and Battery Production Methods - Battery electrodes are provided that can include a conductive core supported by a polymeric frame. Methods for manufacturing battery electrodes are provided that can include: providing a sheet of conductive material; and framing the sheet of conductive material with a polymeric material. Batteries are provided that can include a plurality of electrodes, with individual ones of the electrodes comprising a conductive core supported by a polymeric frame. | 10-03-2013 |
20130260236 | NEGATIVE-ELECTRODE MATERIAL FOR ELECTRICITY STORAGE DEVICE, AND NEGATIVE ELECTRODE FOR ELECTRICITY STORAGE DEVICE USING SAME - The negative electrode material for an electricity storage device comprising a negative electrode active material containing an oxide material, and a binder made of a water-soluble polymer. As the water-soluble polymer, a cellulose derivative or polyvinyl alcohol can be used. | 10-03-2013 |
20130260237 | ANODE ACTIVE MATERIAL AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed are an anode active material for secondary batteries, capable of intercalating and deintercalating ions, the anode active material including a core including a crystalline carbon-based material, and a composite coating layer including one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon, and a hydrophilic material, wherein the composite coating layer includes a matrix comprising one component selected from one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon, and a hydrophilic material, and a filler including the other component, incorporated in the matrix, and a secondary battery including the anode active material. | 10-03-2013 |
20130266856 | Apparatus and Associated Methods - An apparatus including an open interconnected wall structure having one or more pores, the open interconnected wall structure including a first electrode material, the pores including an electrolyte and a second electrode material, wherein the electrolyte and second electrode material are supported on the first electrode material within the pores such that the first electrode material is separated from the second electrode material by the electrolyte to enable the generation and/or storage of electrical energy using the apparatus. | 10-10-2013 |
20130266857 | BINDER COMPOSITION, ELECTRODE FOR RECHARGEABLE BATTERY EMPLOYING THE SAME AND MANUFACTURING METHOD THEREOF - A binder composition has good tensile strength, and can improve the cycle life of a rechargeable battery by maintaining the conduction path of an electrode even during expansion or shrinkage of the active material. The binder composition is environmentally friendly, and can be used in existing production lines as-is. An electrode and a rechargeable battery use the binder composition. The binder composition for a rechargeable battery includes a main binder including a poly(p-phenylene terephthalamide) having at least one of a sulfonic acid group (—SO | 10-10-2013 |
20130266858 | NEGATIVE ELECTRODE FOR POWER STORAGE DEVICE, METHOD FOR FORMING THE SAME, AND POWER STORAGE DEVICE - An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor; thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering part of the negative electrode active material. The film has an insulating property and lithium ion conductivity. | 10-10-2013 |
20130266859 | GRAPHENE OXIDE, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY USING GRAPHENE OXIDE, METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, NONAQUEOUS SECONDARY BATTERY, AND ELECTRONIC DEVICE - A graphene oxide used as a raw material of a conductive additive for forming an active material layer with high electron conductivity with a small amount of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery using the graphene oxide as a conductive additive is provided. The graphene oxide is used as a raw material of a conductive additive in a positive electrode for a nonaqueous secondary battery and, in the graphene oxide, the weight ratio of oxygen to carbon is greater than or equal to 0.405. | 10-10-2013 |
20130266860 | Hexacyanoferrate Battery Electrode Modified with Ferrocyanides or Ferricyanides - A transition metal hexacyanoferrate (TMHCF) battery electrode is provided with a Fe(CN) | 10-10-2013 |
20130266861 | Metal-Doped Transition Metal Hexacyanoferrate (TMHCF) Battery Electrode - A method is provided for synthesizing a metal-doped transition metal hexacyanoferrate (TMHCF) battery electrode. The method prepares a first solution of A | 10-10-2013 |
20130266862 | HIGHLY CORROSION-RESISTANT POROUS METAL BODY AND METHOD FOR PRODUCING THE SAME - Provided are a porous metal body that is excellent in terms of corrosion resistance and that is suitable for a collector for batteries such as lithium-ion batteries, capacitors, or fuel cells; and methods for producing the porous metal body. A production method includes a step of coating a porous nickel body with an alloy containing at least nickel and tungsten or a metal containing at least tin; and a subsequent step of a heat treatment. Another production method includes a step of forming a nickel-plated layer on a porous base and then continuously forming an alloy-plated layer containing at least nickel and tungsten or tin, a step of removing the porous base, and a step of reducing metal. Such a method can provide a porous metal body in which tungsten or tin is diffused in a porous nickel body or a nickel-plated layer. | 10-10-2013 |
20130273420 | ALKALINE STORAGE BATTERY POSITIVE ELECTRODE, METHOD OF FABRICATING THE SAME, AND ALKALINE STORAGE BATTERY - In an alkaline storage battery positive electrode, the surface of positive electrode active material particles is uniformly coated with a conductive agent and the alkaline storage battery positive electrode is capable of suppressing an increase in internal battery resistance. | 10-17-2013 |
20130273421 | SLURRY FOR SECONDARY BATTERY POROUS MEMBRANE, A SECONDARY BATTERY POROUS MEMBRANE, AN ELECTRODE FOR SECONDARY BATTERY, A SEPARATOR FOR SECONDARY BATTERY AND A SECONDARY BATTERY - A secondary battery porous membrane, manufactured by a slurry for secondary battery porous membrane, which is superior in coating priority and dispersibility of non-conductive organic particles, which improves cycle characteristic of the obtained secondary battery, which has high flexibility and can prevent powder falls, and which has less content of moisture amount; and non-conductive organic particles, which can be suitably used as a secondary battery porous membrane and has less content of metallic foreign particles. The slurry for secondary battery porous membrane comprises; a binder including a polymerized unit of vinyl monomer having a hydrophilic acid group, a non-conductive organic particle having a functional group, cross-linkable with the hydrophilic acid group and a solvent. | 10-17-2013 |
20130280603 | METHOD OF MANUFACTURING ANODE ACTIVE MATERIAL, AND ANODE AND LITHIUM BATTERY USING THE ANODE ACTIVE MATERIAL - Disclosed is to a method of manufacturing an anode active material, including mixing a first solution having a metal oxide precursor dissolved therein, a second solution having a polymer as a carbon fiber precursor dissolved therein, and an ionic liquid solution for nitrogen doping and formation of a porous structure, thus preparing an electrospinning solution, electrospinning the electrospinning solution, thus preparing a metal oxide-nitrogen-porous carbon nanofiber composite, and thermally treating the composite, and to an anode and a lithium battery using the anode active material. | 10-24-2013 |
20130280604 | ELECTRODE ACTIVE MATERIAL, NONAQUEOUS SECONDARY BATTERY ELECTRODE, AND NONAQUEOUS SECONDARY BATTERY - An electrode active material of the present invention is made of a layered composition including organic backbone layers containing an aromatic compound that is a dicarboxylic acid anion having a naphthalene backbone; and alkali metal element layers containing an alkali metal element coordinated to oxygen contained in the carboxylic acid anion to form a backbone. The layered composition has an interplanar spacing between (002) planes of 0.42400 to 0.42800 nm, an interplanar spacing between (102) planes of 0.37000 to 0.37600 nm, an interplanar spacing between (211) planes of 0.32250 to 0.32650 nm, and an interplanar spacing between (112) planes of 0.30400 to 0.30700 nm, as measured by X-ray diffraction. Preferably, the layered composition has an interplanar spacing between (200) planes of 0.50500 to 0.50950 nm as measured by X-ray diffraction. | 10-24-2013 |
20130280605 | ELECTRODE PROTECTION IN BOTH AQUEOUS AND NON-AQUEOUS ELECTROCHEMICAL CELLS, INCLUDING RECHARGEABLE LITHIUM BATTERIES - Electrode protection in electrochemical cells, and more specifically, electrode protection in both aqueous and non-aqueous electrochemical cells, including rechargeable lithium batteries, are presented. In one embodiment, an electrochemical cell includes an anode comprising lithium and a multi-layered structure positioned between the anode and an electrolyte of the cell. A multi-layered structure can include at least a first single-ion conductive material layer (e.g., a lithiated metal layer), and at least a first polymeric layer positioned between the anode and the single-ion conductive material. The invention also can provide an electrode stabilization layer positioned within the electrode, i.e., between one portion and another portion of an electrode, to control depletion and re-plating of electrode material upon charge and discharge of a battery. Advantageously, electrochemical cells comprising combinations of structures described herein are not only compatible with environments that are typically unsuitable for lithium, but the cells may be also capable of displaying long cycle life, high lithium cycling efficiency, and high energy density. | 10-24-2013 |
20130280606 | ELECTRODE BINDER COMPOSITION FOR NONAQUEOUS ELECTROLYTE BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NONAQUEOUS ELECTROLYTE BATTERY - Provided is a binder composition for electrodes that has high stability in the form of a liquid composition dissolved or dispersed in a solvent and can improve cycle property of a non-aqueous electrolyte battery. The binder composition used is a binder composition including a polymer A containing 80% by weight or more and 99.9% by weight or less of a repeating unit derived from a monomer including a nitrile group and 0.1% by weight or more and 20% by weight or less of a repeating unit derived from an ethylenically unsaturated compound, wherein a weight-average molecular weight of the polymer A is 500,000 to 2,000,000, and a molecular weight distribution (Mw/Mn) of the polymer A is 13 or smaller. | 10-24-2013 |
20130280607 | BATTERY CELL HAVING REDUCED CELL INDUCTANCE - The invention relates to a battery cell ( | 10-24-2013 |
20130288116 | 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. | 10-31-2013 |
20130288117 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed is a negative electrode for a rechargeable lithium battery that includes a current collector and a negative active material layer on the current collector, the negative active material layer having an active mass density in a range of about 1.6 g/cc to about 2.1 g/cc and including graphite and a pore-forming agent. | 10-31-2013 |
20130288118 | NEGATIVE ELECTRODE COMPOSTION FOR RECHARGEABLE LITHIUM BATTERY, NEGATIVE ELECTRODE COMPRISING SAME AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAME - A negative electrode composition for a rechargeable lithium battery. The negative electrode includes a negative active material and crystalline carbon conductive material, wherein the negative active material includes soft carbon, and the crystalline carbon conductive material includes graphite having an average particle diameter (D90) of about 1 micrometer to about 20 micrometers. | 10-31-2013 |
20130288119 | ELECTRODE FOR LITHIUM SECONDARY BATTERY - Disclosed is a method for forming an electrode having a protective layer, which includes: mixing an aliphatic nitrile compound with an electrode active material and a solvent to form slurry for electrode active material; applying the slurry for electrode active material on a collector; and removing the solvent used in the slurry by drying to form a protective layer comprising an aliphatic nitrile compound-electrode active material complex. | 10-31-2013 |
20130288120 | POLYIMIDE RESIN COMPOSITION AND LAMINATE INCLUDING POLYIMIDE RESIN COMPOSITION - To provide a resin composition that contains a solvent-soluble polyimide and can provide a film exhibiting high viscoelasticity and flexibility at high temperatures. To attain this, a polyimide resin composition is provided that includes a polyimide having a polycondensation unit of a tetracarboxylic acid dianhydride and a diamine, wherein the tetracarboxylic acid dianhydride includes an (α1) tetracarboxylic acid dianhydride represented by general formula (1), or the diamine includes an (β1) aromatic diamine represented by general formula (2), the diamine includes an (β2) aliphatic diamine represented by general formula (3) or (4), a total amour of the (α1) tetracarboxylic acid dianhydride and the (β1) aromatic diamine is 5 to 49 mol % with respect to a total amount of the tetracarboxylic acid dianhydride and the diamine, and an amine equivalent of the polyimide is 4,000 to 20,000. | 10-31-2013 |
20130288121 | SECONDARY BATTERY - A secondary battery | 10-31-2013 |
20130288122 | COPPER FOIL FOR NEGATIVE ELECTRODE CURRENT COLLECTOR OF LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE MATERIAL OF LITHIUM ION SECONDARY BATTERY, AND METHOD FOR SELECTING NEGATIVE ELECTRODE CURRENT COLLECTOR OF LITHIUM ION SECONDARY BATTERY - A copper foil for a negative electrode current collector of a lithium ion secondary battery enables prevention of deformation of the current collector even if the charge/discharge operation is repeatedly carried out. In a copper foil for a negative electrode current collector of a lithium ion secondary battery, a 10 mm wide test specimen composed of the copper foil is subjected to a tensile test, a maximum strain loaded on the copper foil is 30 N or higher in a region where “Value L” represented by the following expression is 0.8 or more in a strain-stress curve obtained in the tensile test where O is the starting point of the curve, P | 10-31-2013 |
20130288123 | THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY FOR CURRENT COLLECTOR, ELECTRODE USING THE ALUMINUM POROUS BODY, AND BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR EACH USING THE ELECTRODE - It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body for a current collector which is suitably used for electrodes for nonaqueous electrolyte batteries and electrodes for capacitors, an electrode and a capacitor each using the same. In such a three-dimensional network aluminum porous body for a current collector, the aluminum porous body has been made to have a compressive strength in a thickness direction of 0.2 MPa or more in order to efficiently fill an active material into the sheet-shaped three-dimensional network aluminum porous body. | 10-31-2013 |
20130288124 | THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY FOR CURRENT COLLECTOR, AND CURRENT COLLECTOR, ELECTRODE, NONAQUEOUS ELECTROLYTE BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR, EACH USING ALUMINUM POROUS BODY - It is an object of the present invention to provide a current collector including an aluminum porous body suitable for an electrode for a nonaqueous electrolyte battery and an electrode for a capacitor electrode, and an electrode using the current collector. In the three-dimensional network aluminum porous body for a current collector of the present invention, when a sheet-shaped three-dimensional aluminum porous body is divided in the width direction into a central region and two end regions with the central region situated therebetween, the weight per unit area of aluminum in the aluminum porous body at the two end regions is larger than the weight per unit area of aluminum in the aluminum porous body at the central region. | 10-31-2013 |
20130295452 | LITHIUM ELECTRODE FOR LITHIUM METAL BATTERY AND METHOD OF MANUFACTURING THE LITHIUM ELECTRODE - Disclosed are a lithium electrode for a lithium metal battery, which uses a solid high-ionic conductor having a three-dimensional (3D) porous structure, wherein a lithium metal or lithium alloy is filled into each pore and dispersed, and a method for manufacturing the lithium electrode. By applying a solid high-ionic conductor having a 3D porous structure, an ion conduction path is secured in the lithium electrode using the solid high-ionic conductor instead of a conventional liquid electrolyte, electrical-chemical reactivity in charging and discharging are further improved, and shelf life and high rate capability are enhanced. | 11-07-2013 |
20130295453 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY - An object of the present invention is to provide a negative electrode for a lithium ion secondary battery, capable of obtaining a lithium ion secondary battery which is excellent in initial charge characteristics and is also excellent in charge/discharge cycle characteristics, and a method for producing the same, as well as a lithium ion secondary battery comprising the negative electrode for a lithium ion secondary battery. A negative electrode for a lithium ion secondary battery according to the present invention comprises a current collector layer, and a negative electrode active material layer composed of a tin structure, the tin structure includes a plurality of protrusions which protrude approximately perpendicularly to a main surface of the current collector layer, and a cross-sectional area of the tip portion parallel to the main surface of the current collector layer of the protrusion is smaller than that of the base end portion. | 11-07-2013 |
20130295454 | LOW CRYSTALLINITY SILICON COMPOSITE ANODE MATERIAL FOR LITHIUM ION BATTERY - An electrode composition that includes the combination of a finely ground silicon mixture, a partially carbonized polymeric material, and a buffering agent is disclosed. The silicon mixture can be formed by mechanical milling of crystalline silicon to create amorphous silicon particles, while the polymeric material can be formed from polymers such as polystyrene, polyethylene, polypropylene, polyacrylonitrile, polyvinyl chloride, polyethylene oxide that are heated under inert gasses to slightly decompose the polymers. | 11-07-2013 |
20130295455 | METHOD FOR PREPARING ELECTRODE MIX AND THE ELECTRODE MIX PREPARED BY USING THE SAME - Disclosed are a method for preparing an electrode mix comprising (i) adding an electrode active material, a conductive material and a binder to a solvent, (ii) further adding a surfactant to the mixture of step (i), and (iii) mixing the resulting mixture of step (ii) and an electrode mix for secondary batteries prepared by the method. | 11-07-2013 |
20130295456 | SECONDARY BATTERY - A secondary battery | 11-07-2013 |
20130295457 | Composite Anodes with an Interfacial Film - A composite anode for lithium secondary battery, which has an active anode material layer formed on a conductive substrate and an interfacial film coated on the active anode material layer, wherein the active anode material layer includes carbonaceous materials, other active and inactive materials, and a binder. The anode increases degree of the anode active material utilization and the cycle life and characteristic and capacity of the battery can be improved. | 11-07-2013 |
20130295458 | CURRENT COLLECTOR - A current collector wherein Layer a comprising electrically conductive particles such as electrically conductive carbon; a binding agent such as chitosan, chitin and the like; and organic acid such as trimellitic anhydride, pyromellitic anhydride, 1,2,3,4-butanetetracarboxylic acid and the like is provided on one or both surfaces of a metal foil such as an aluminum foil, a copper foil and the like, and the coverage of the electrically conductive particles is 50 to 100%, and the thickness of the Layer a is 5 μm or less. An electrode wherein Layer b comprising an electrode active material is provided on a surface having the Layer a of the current collector. An electrochemical element comprising the electrode. | 11-07-2013 |
20130295459 | POROUS METALLIC BODY HAVING HIGH CORROSION RESISTANCE AND METHOD FOR PRODUCING THE SAME - A porous metallic body has a three-dimensional network structure composed of an alloy containing at least Ni and Cr, the porous metallic body having a skeleton formed of a hollow core and a shell, in which when a cross section of the shell is evenly divided in the thickness direction into three portions, i.e., an outer portion, a central portion, and an inner portion, and when concentrations in percent by weight of Cr in the outer portion, the central portion, and the inner portions are defined as a, b, and c, a, b, and c satisfy the relation given by expression (1): | 11-07-2013 |
20130302670 | ELECTRODE PLATE, SECONDARY BATTERY HAVING THE SAME, AND MANUFACTURING METHOD FOR THE ELECTRODE PLATE - An electrode plate includes a current collector, the current collector being made of metal and having a 3-dimensional mesh structure, and an active material portion including an active material, the active material portion being inserted into a vacant space in the current collector and coated on top and bottom surfaces of the current collector. | 11-14-2013 |
20130302671 | CURRENT CONDUCTOR COMPRISING A SEGMENT WITH REDUCED THICKNESS FOR A GALVANIC CELL - Plate-shaped current conductor ( | 11-14-2013 |
20130302672 | CATHODE MIX FOR SECONDARY BATTERY AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode mix for secondary batteries, comprising lithium iron phosphate, coated with carbon (C), having an olivine crystal structure that contains a compound represented by the following formula 1 as a cathode active material, wherein a mean particle diameter of primary particles in the cathode active material is 2 μm or less, and the cathode mix contains a hydrophilic conductive material as a conductive material. | 11-14-2013 |
20130302673 | ELECTRODE MATERIALS WITH HIGH SURFACE CONDUCTIVITY - The present invention concerns electrode materials capable of redox reactions by electron and alkali-ion exchange with an electrolyte. The applications are in the field of primary (batteries) or secondary electrochemical generators, supercapacitors and light modulating systems of the electrochromic type. | 11-14-2013 |
20130302674 | BATTERY ELECTRODE AND A METHOD FOR PRODUCING SAME - In order to allow for a compact configuration of a battery with an increased energy density/volume ratio together with low production costs, the invention specifies a battery electrode and a method for producing same, wherein an arrester region is arranged on a collector substrate such that it is predominantly surrounded by a coating film. | 11-14-2013 |
20130302675 | NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - The invention provides a negative electrode material for lithium ion secondary battery, including a composite particle of a first particle containing a carbonic substance A and a second particle containing silicon, which are combined with a carbonic substance B, wherein, when a cross-section of the composite particle is observed with respect to: the content of silicon atom in a core region in a circle having a center thereof on the midpoint of the major axis, which constitutes the maximum length, and having a radius of ⅛ of the length of the minor axis orthogonally intersecting the major axis at the midpoint thereof, and the content thereof in a rim region extending from the circumference to a depth of ⅛ of the length of the minor axis, the ratio of the content in the rim region to that in the core region is 2 or higher. | 11-14-2013 |
20130302676 | ALUMINUM ALLOY FOIL FOR ELECTRODE CURRENT COLLECTORS AND MANUFACTURING METHOD THEREOF - It is an object to provide an aluminum alloy foil for an electrode current collector, the foil having a high post-drying strength after application of an active material while keeping a high electrical conductivity. Disclosed is an aluminum alloy foil for an electrode current collector, comprising 0.1 to 1.0 mass % (hereinafter, “mass %” is simply referred to as “%”) of Fe, 0.01 to 0.5% of Si, and 0.01 to 0.2% of Cu, with the rest consisting of Al and unavoidable impurities, wherein the aluminum alloy foil after final cold rolling has a tensile strength of 220 MPa or higher, a 0.2% yield strength of 180 MPa or higher, and an electrical conductivity of 58% IACS or higher; and the aluminum ally foil has a tensile strength of 190 MPa or higher and a 0.2% yield strength of 160 MPa or higher even after the aluminum alloy foil is subjected to heat treatment at any of 120° C. for 24 hours, 140° C. for 3 hours, and 160° C. for 15 minutes. | 11-14-2013 |
20130309565 | CURRENT COLLECTOR, ELECTROCHEMICAL CELL ELECTRODE AND ELECTROCHEMICAL CELL - A current collector includes a plastic support film and a graphene film covering on at least one surface of the plastic support film. An electrochemical cell electrode includes the current collector and an electrode material layer covering on at least one surface of the current collector. An electrochemical cell is also provided which including the electrochemical cell electrode. | 11-21-2013 |
20130309566 | SECONDARY BATTERY, AND ELECTRODE SHEET CUTTING APPARATUS - A secondary battery | 11-21-2013 |
20130309567 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, MEHTOD FOR PRODUCING THE SAME, POSITIVE ELECTRODE FOR NONAQUEOUS ELECTOLYTE SECONDARY BATTERY USING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE POSITIVE ELECTRODE - An object of the present invention is to provide a positive electrode active material for a nonaqueous electrolyte secondary battery etc. which are capable of suppressing the generation of gas during charge by suppressing a reaction between a positive electrode and an electrolyte decomposition product moved from a negative electrode and a reaction between the positive electrode and the electrolyte, and which are thereby capable of significantly improving battery characteristics such as cycling characteristics. The positive electrode active material includes a compound composed of sodium, fluorine, and erbium and adhered to a surface of lithium cobalt oxide, and can be produced by adding, while adjusting pH, an aqueous solution prepared by dissolving erbium nitrate pentahydrate to a suspension containing lithium cobalt oxide and sodium fluoride. | 11-21-2013 |
20130309568 | SOLID ELECTROLYTE BATTERY - Provided is a solid electrolyte battery that has favorable charge-discharge characteristics with impedance reduced. | 11-21-2013 |
20130309569 | SECONDARY BATTERY - A negative electrode active material layer ( | 11-21-2013 |
20130316230 | NANOSTRUCTURE SURFACE MODIFIED Cu THIN FILM FOR LITHIUM ION NEGATIVE ELECTRODE APPLICATION - A nanostructure on Cu comprising a plurality of Cu(OH) | 11-28-2013 |
20130316231 | AQUEOUS LIQUID COMPOSITION, AQUEOUS COATING, FUNCTIONAL COATING FILM, AND COMPOSITE MATERIAL - An aqueous liquid composition contains a water-based medium containing water, a polymer having at least one type of groups selected from hydroxyl groups and amino groups, and phosphonobutanetricarboxylic acid. The aqueous liquid composition contains low-cost materials having low environmental load, can retain adequate viscosity even when stored over a long term, and can form a functional coating film having excellent adhesiveness to a base material and superb durability, solvent resistance and waterproofness and capable of exhibiting various functions led by electrical conductivity and hydrophilicity. | 11-28-2013 |
20130316232 | AQUEOUS LIQUID COMPOSITION, AQUEOUS COATING, FUNCTIONAL COATING FILM, AND COMPOSITE MATERIAL - An aqueous liquid composition contains a water-based medium containing water, chitosan and/or a chitosan derivative, and a polymeric acid, and has a pH of not higher than 4.5. The aqueous liquid composition contains low-cost materials having low environmental load, can retain adequate viscosity even when stored over a long term, and can form a functional coating film having excellent adhesiveness to a base material and superb durability, solvent resistance and waterproofness and capable of exhibiting various functions led by electrical conductivity and hydrophilicity. | 11-28-2013 |
20130316233 | PARTICULATE MIXTURE, CATHODE ACTIVE MATERIAL, CATHODE, SECONDARY BATTERY, AND PRODUCTION METHOD THEREOF - The object of the present invention is to provide a method for producing lithium transition metal phosphate with a small particle size and uniform element spatial distribution, which enables continuous and large-scale synthesis. Its solution is as follows: A particulate mixture is synthesized by the spray-combustion method, wherein a mixed solution containing a lithium source, a transition metal source, and a phosphorus source is supplied into a flame along with a combustion-supporting gas and a flammable gas, as a mist-like droplet. It is a method for producing lithium transition metal phosphate-type cathode active material, which further comprises a process of mixing the synthesized particulate mixture with a carbon source, a process of calcining the particulate mixture under inert gas atmosphere to produce an active material aggregate, and a process of pulverizing the active material aggregate. | 11-28-2013 |
20130316234 | MODIFIER FOR POLYVINYLIDENE FLUORIDE, BINDER RESIN COMPOSITION FOR BATTERY, ELECTRODE FOR SECONDARY BATTERY AND BATTERY - A modifier for polyvinylidene fluoride (PVDF), which improves the adhesion of PVDF to a metal, a binder resin composition for battery and a battery using the PVDF modifier are provided. The modifier for polyvinylidene fluoride herein is a modifier in which the peeling strength of a specific cured film to an aluminium foil is 20 g/cm or more, and the specific cured film is obtained from a mixture of 6 parts by mass of the modifier for polyvinylidene fluoride and 14 parts by mass of a polyvinylidene fluoride composition. The modifier preferably contains a macromonomer copolymer (X), obtained by polymerizing both a macromonomer (A) having unsaturated double bonds and a vinyl monomer (B) having polar groups. The macromonomer (A) is preferably a methacrylic acid ester-based macromonomer (A-1). The vinyl monomer (B) is preferably a methacrylate, and a fluoroalkyl methacrylate. | 11-28-2013 |
20130316235 | SLURRY FOR SECONDARY BATTERY NEGATIVE ELECTRODES, SECONDARY BATTERY NEGATIVE ELECTRODE AND MANUFACTURING METHOD THEREOF, AND SECONDARY BATTERY - A composition containing an electrode active material, a water-insoluble polymer (A), and a water-soluble polymer (B), wherein: the water-insoluble polymer (A) contains 20 wt % to 60 wt % of an aliphatic conjugated diene monomer unit (a1), 0.5 wt % to 10 wt % of an ethylenically unsaturated carboxylic acid monomer unit (a2), and 30 wt % to 79.5 wt % of a unit (a3) of a monomer that is copolymerizable therewith; the water-soluble polymer (B) contains 20 wt % to 60 wt % of an ethylenically unsaturated carboxylic acid monomer unit (b1), 25 wt % to 78 wt % of a (meth)acrylic acid ester monomer unit (b2), and 2 wt % to 15 wt % of a unit (b3) of a sulfonic acid group-containing monomer that is copolymerizable therewith; and a ratio (A)/(B) of the water-insoluble polymer (A) relative to the water-soluble polymer (B) is 80/20 to 95/5. | 11-28-2013 |
20130323585 | NEGATIVE ELECTRODE FOR POWER STORAGE DEVICE AND POWER STORAGE DEVICE - A decomposition reaction of an electrolyte solution and the like caused as a side reaction of charge and discharge is minimized in repeated charge and discharge of a lithium ion battery or a lithium ion capacitor, and thus the lithium ion battery or the lithium ion capacitor can have long-term cycle performance. A negative electrode for a power storage device includes a negative electrode current collector and a negative electrode active material layer which includes a plurality of particles of a negative electrode active material. Each of the particles of the negative electrode active material has an inorganic compound film containing a first inorganic compound on part of its surface. The negative electrode active material layer has a film in contact with an exposed part of the negative electrode active material and part of the inorganic compound film. The film contains an organic compound and a second inorganic compound. | 12-05-2013 |
20130323586 | MANUFACTURING METHOD OF ELECTRODE, AND BATTERY - An electrode includes a current collector formed in a sheet and an electrode mixture layer formed on the surface of a current collector. An electrode mixture containing an active material is prepared by using a kneading machine. The electrode mixture on a surface of the current collector is coated. The electrode mixture coated on the current collector is pressed to form the electrode mixture layer on the surface of the current collector. A first thickener and a second thickener are added to the active material when the electrode mixture is prepared. A 1% by weight aqueous solution of the first thickener has the viscosity of equal to or larger than 5000 and equal to or smaller than 9000 mPa·s. A 1% by weight aqueous solution of the second thickener has the viscosity of equal to or larger than 2000 and equal to or smaller than 5000 mPa·s. | 12-05-2013 |
20130323587 | BINDER COMPOSITION FOR ELECTRODE OF ELECTRIC STORAGE DEVICE - A binder composition for an electrode of an electric storage device is provided. The binder composition comprises (A) at least one polymer selected from the group consisting of polyamic acids and imidized polymers thereof having an imidization rate of 50% or less and (B) water. The ratio Ma/Mb of the content of the polymer (A), Ma (parts by mass), to the content of the water (B), Mb (parts by mass), ranges from 500 to 5,000. The binder composition for an electrode of the present invention provides an electric storage device having a large charge/discharge capacity and a low degree of capacity degradation due to repetition of a charge/discharge cycle. | 12-05-2013 |
20130323588 | ELECTRODE BINDER COMPOSITION, ELECTRODE SLURRY, ELECTRODE, ELECTROCHEMICAL DEVICE, METHOD FOR PRODUCING ELECTRODE BINDER COMPOSITION, AND METHOD FOR STORING ELECTRODE BINDER COMPOSITION - An electrode binder composition includes polymer particles. The polymer particles include 5 to 40 parts by mass of a constituent unit (A) derived from an alpha,beta-unsaturated nitrile compound, and 0.3 to 10 parts by mass of a constituent unit (B) derived from an unsaturated carboxylic acid, and have a number average particle size of 50 to 400 nm. The electrode binder composition has a gel content of 90 to 99% and an electrolyte solution swelling ratio of 110 to 400%. | 12-05-2013 |
20130323589 | CURRENT COLLECTOR - A current collector for an electrochemical element including an aluminum foil showing a peak in the range between 945 cm | 12-05-2013 |
20130323590 | SODIUM SECONDARY BATTERY ELECTRODE AND SODIUM SECONDARY BATTERY - A sodium secondary battery electrode having an collector and an electrode mixture containing an electrode active material, a conductive material, and a binder, and wherein: the electrode active material has a sodium-containing transition metal compound, the conductivity of the electrode mixture is 5.0×10 | 12-05-2013 |
20130323591 | Accumulator Cell with Coated Terminal - An accumulator cell comprises two terminals. One terminal is provided with a coating made of a metal. The metal is identical to the metal of which the second terminal consists, or each terminal is coated with a coating made of the same metal. The disclosure further relates to an accumulator and a motor vehicle with an accumulator. | 12-05-2013 |
20130330611 | Rechargeable lithium cell having a meso-porous conductive material structure-supported phthalocyanine compound cathode - A rechargeable lithium cell comprising: (a) an anode comprising a prelithiated lithium storage material or a combination of a lithium storage material and a lithium ion source; (b) a hybrid cathode active material composed of a meso-porous structure of a carbon, graphite, metal, or conductive polymer and a phthalocyanine compound, wherein the meso-porous structure is in an amount of from 1% to 99% by weight based on the total weight of the meso-porous structure and the phthalocyanine combined, and wherein the meso-porous structure has a pore with a size from 2 nm to 50 nm to accommodate phthalocyanine compound therein; and (c) an electrolyte or electrolyte/separator assembly. This secondary cell exhibits a long cycle life and the best cathode specific capacity and best cell-level specific energy of all rechargeable lithium-ion cells ever reported. | 12-12-2013 |
20130330612 | CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME - Disclosed herein is a cathode active material for secondary batteries and a secondary battery including the same, the cathode active material including lithium manganese oxide (A) having a spinel crystal structure and at least two types of lithium nickel-manganese-cobalt composite oxides (B) containing Ni, Mn, and Co as transition metals, wherein the lithium nickel-manganese-cobalt composite oxides (B) are different from each other in terms of at least one selected from the group consisting of elemental composition, particle diameter, and density. | 12-12-2013 |
20130330613 | POSITIVE ELECTRODE, NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, a positive electrode includes a positive electrode material layer and a positive electrode current collector. The positive electrode material layer includes a positive electrode active material having a composition represented by a formula (1) described below. The positive electrode material layer satisfies a formula (2) described below. The positive electrode material layer is formed on the positive electrode current collector. | 12-12-2013 |
20130330614 | ELECTRODE USING THREE-DIMENSIONAL NETWORK ALUMINUM POROUS BODY, AND NONAQUEOUS ELECTROLYTE BATTERY, CAPACITOR AND LITHIUM-ION CAPACITOR WITH NONAQUEOUS ELECTROLYTIC SOLUTION, EACH USING THE ELECTRODE - In an electrode according to the present invention including a three-dimensional network aluminum porous body as a base material, the electrode is a sheet-shaped electrode, and a cell of the three-dimensional network aluminum porous body has an elliptic shape having a minor axis in the thickness direction of the electrode in a cross section parallel to the longitudinal direction and thickness direction of the electrode, and a cell of the three-dimensional network aluminum porous body has an elliptic shape having a minor axis in the thickness direction of the electrode in a cross section parallel to the width direction and thickness direction of the electrode. The electrode is preferably obtained by subjecting the three-dimensional network aluminum porous body to at least a current collecting lead welding step, an active material filling step and a compressing step. | 12-12-2013 |
20130330615 | LITHIUM-ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A lithium-ion secondary battery is provided which has a positive electrode formed using a composition formed of an aqueous solvent and which exhibits superior battery performance. The battery comprises a positive electrode and a negative electrode, and the positive electrode has a positive electrode current collector and a positive electrode mixture layer which is formed on the current collector and which includes at least a positive electrode active material and a hinder. A surface of the positive electrode active material is coated by a hydrophobic coating and the binder dissolves or disperses in the aqueous solvent. | 12-12-2013 |
20130330616 | Composite Particles, Methods of Making the Same, and Articles Including the Same - Composite particles include a core comprising a layered lithium metal oxide having an O3 crystal structure. A shell layer having an O3 crystal structure encloses the core. The shell layer includes an oxygen-loss, layered lithium metal oxide. The core comprises from 30 to 85 mole percent of the composite particles. A cathode and a lithium-ion battery including the composite particles, and methods of making the foregoing are also disclosed. | 12-12-2013 |
20130330617 | ELECTRODE FOIL, CURRENT COLLECTOR, ELECTRODE, AND ELECTRIC ENERGY STORAGE ELEMENT USING SAME - A cathode foil for a solid electrolytic capacitor is designed to increase capacitance, reduce ESR and leakage current, enhance heat resistance, and reduce production costs, while enhancing a power density, realizing rapid charging-discharging, and improving a life property, in an electric energy storage element such as a secondary battery, an electric double layer capacitor and a hybrid capacitor. A cathode foil or a current collector may include a metal foil, a metal layer, a mixed layer containing carbon and a substance composing the metal layer in a mixed state, and a carbon layer consisting substantially of carbon, each formed on the metal foil. The mixed layer is configured to have a composition changing from a state containing substantially only the substance composing the metal layer to a state containing substantially only carbon, in a direction from the metal layer to the carbon layer. | 12-12-2013 |
20130330618 | BATTERY ELECTRODE AND BATTERY - Provided are a battery electrode with low internal resistance and a battery with high charge and discharge efficiency. The battery electrode includes a current collector formed of a porous metal having a three-dimensional network structure and an active material, and the active material is supported in the network structure of the current collector without using a binder resin. | 12-12-2013 |
20130337320 | METHOD FOR MANUFACTURING STORAGE BATTERY ELECTRODE, STORAGE BATTERY ELECTRODE, STORAGE BATTERY, AND ELECTRONIC DEVICE - To provide a method for forming a storage battery electrode including an active material layer with high density in which the proportion of conductive additive is low and the proportion of the active material is high. To provide a storage battery having a higher capacity per unit volume of an electrode with the use of a storage battery electrode formed by the formation method. A method for forming a storage battery electrode includes the steps of forming a mixture including an active material, graphene oxide, and a binder; providing a mixture over a current collector; and immersing the mixture provided over the current collector in a polar solvent containing a reducer, so that the graphene oxide is reduced. | 12-19-2013 |
20130337321 | POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE POSITIVE ELECTRODE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE POSITIVE ELECTRODE - An object of the present invention is to provide a positive electrode for a nonaqueous electrolyte secondary battery capable of significantly improving cycling characteristics while decreasing production cost, a method for producing the positive electrode, and a nonaqueous electrolyte secondary battery using the positive electrode. The positive electrode includes a positive-electrode current collector, and a positive-electrode mixture layer formed on at least one of the surfaces of the positive-electrode current collector, wherein the positive-electrode mixture layer contains a positive electrode active material, a binder, a conductive agent, and at least one compound selected from the compound group consisting of rare earth acetic acid compounds, rare earth nitric acid compounds, and rare earth sulfuric acid compounds. | 12-19-2013 |
20130337322 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING THE SAME - Provided is a nonaqueous electrolyte secondary battery with improved high-rate discharge characteristics. The nonaqueous electrolyte secondary battery includes a positive electrode including a metal foil and a positive electrode active material layer formed thereon; a negative electrode containing a negative electrode active material; and a nonaqueous electrolyte containing a nonaqueous solvent and a solute dissolved therein. The metal foil of the positive electrode is an aluminum foil having an at least partially roughened surface adjacent to the positive electrode active material layer. The positive electrode includes a conductive layer containing a conductor and a binder in recesses in the at least partially roughened surface of the aluminum foil. The positive electrode active material layer is disposed on the conductive layer and contains a positive electrode active material, the conductor, and the binder. | 12-19-2013 |
20130337323 | NEGATIVE-ELECTRODE MIXTURE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, AND NEGATIVE ELECTRODE, AS WELL AS SECONDARY BATTERY - An object of the present invention is to provide a negative-electrode mixture material for secondary battery that is excellent in terms of high-rate characteristics, and a negative electrode, as well as a secondary battery. A negative-electrode mixture material for secondary battery according to the present invention contains a negative-electrode active material including: a silicon elementary substance and a silicon compound; graphite; and a polyamide-imide/silica hybrid resin being made by bonding an alkoxysilyl group onto a polyamide-imide resin. | 12-19-2013 |
20130344382 | LI-ION BATTERY POSITIVE PLATE STRUCTURE - The invention pertains to the technical field of a Li-ion battery, in particular to a Li-ion battery positive plate structure, comprising a current collector, a base diaphragm arranged on the surface of the current collector and a top diaphragm arranged on the surface of the base diaphragm; both the base diaphragm and the top diaphragm respectively comprise an active substance, an adhesive and a conductive additive, wherein, the active substance of the base diaphragm is graphite, while the active substance of the top diaphragm is at least one among silicon, silicon alloy and tin alloy. Compared with the prior art, the Li-ion battery positive plate structure of the invention successfully solves the problem of film removal of silicon anode and alloy anode due to swelling in the process of charging because a graphite anode base diaphragm with buffering function is installed between the top diaphragm with swelling trend. | 12-26-2013 |
20130344383 | TEMPLATE ELECTRODE STRUCTURES FOR DEPOSITING ACTIVE MATERIALS - Provided are examples of electrochemically active electrode materials, electrodes using such materials, and methods of manufacturing such electrodes. Electrochemically active electrode materials may include a high surface area template containing a metal silicide and a layer of high capacity active material deposited over the template. The template may serve as a mechanical support for the active material and/or an electrical conductor between the active material and, for example, a substrate. Due to the high surface area of the template, even a thin layer of the active material can provide sufficient active material loading and corresponding battery capacity. As such, a thickness of the layer may be maintained below the fracture threshold of the active material used and preserve its structural integrity during battery cycling. | 12-26-2013 |
20130344384 | ELECTRODE COMPRISING PROTECTIVE LAYER FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery containing a pair of electrodes facing each other, and a separator interposed between the electrodes, wherein at least one of the electrodes has a protecting layer, an active-material containing layer, and a collector sequentially from the separator. The protecting layer contains a silicone resin particle having at least one structural unit represented by RSiO | 12-26-2013 |
20140004415 | LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME | 01-02-2014 |
20140004416 | ACTIVE MATERIAL, METHOD FOR MANUFACTURING ACTIVE MATERIAL, ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING LITHIUM ION SECONDARY BATTERY | 01-02-2014 |
20140004417 | ACTIVE MATERIAL, METHOD FOR MANUFACTURING ACTIVE MATERIAL, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY | 01-02-2014 |
20140004418 | SLURRY COMPOSITION FOR NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY CELL, NEGATIVE ELECTRODE OF LITHIUM ION SECONDARY CELL, AND LITHIUM ION SECONDARY CELL | 01-02-2014 |
20140004419 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE USED FOR SECONDARY BATTERY, AND METHOD OF MANUFACTURING ELECTRODE | 01-02-2014 |
20140004420 | ALUMINUM BASE FOR CURRENT COLLECTOR, CURRENT COLLECTOR, POSITIVE ELECTRODE, NEGATIVE ELECTRODE, AND SECONDARY BATTERY | 01-02-2014 |
20140011086 | MOLECULAR PRECURSORS FOR LITHIUM-IRON-CONTAINING CATHODE MATERIALS - Lithium-iron molecular precursor compounds, compositions and processes for making a cathode for lithium ion batteries. The molecular precursor compounds are soluble and provide processes to make stoichiometric cathode materials with solution-based processes. The cathode material can be, for example, a lithium iron oxide, a lithium iron phosphate, or a lithium iron silicate. Cathodes can be made as bulk material in a solid form or in solution, or in various forms including thin films. | 01-09-2014 |
20140011087 | ACTIVE MATERIAL SHEET AND ELECTRODE USING THE SAME - An active material sheet includes an active material that stores charge, and a binder that binds the active material. The active material is granular and 90% or more of active material particles have a particle diameter equal to or less than 20 μm. The active material particles include a first group of particles having a particle diameter equal to or less than 5 μm and a circularity ranging from 0.850 to 1.000 and a second group of particles having a particle diameter greater than 5 μm and equal to or less than 20 μm and a circularity ranging from 0.500 to 0.850. | 01-09-2014 |
20140011088 | MANUFACTURING OF HIGH CAPACITY PRISMATIC LITHIUM-ION ALLOY ANODES - High capacity energy storage devices and energy storage device components, and more specifically, to a system and method for fabricating such high capacity energy storage devices and storage device components using processes that form three-dimensional porous structures are provided. In one embodiment, an anode structure for use in a high capacity energy storage device, comprising a conductive collector substrate, a three-dimensional copper-tin-iron porous conductive matrix formed on one or more surfaces of the conductive collector substrate, comprising a plurality of meso-porous structures formed over the conductive current collector, and an anodically active material deposited over the three-dimensional copper-tin-iron porous conductive matrix is provided. In certain embodiments, the three-dimensional copper-tin-iron porous conductive matrix further comprises a plurality of columnar projections formed on the conductive current collector with the plurality of meso-porous structure formed on the plurality of columnar projections. | 01-09-2014 |
20140011089 | POLYIMIDE PRECURSOR SOLUTION, POLYIMIDE PRECURSOR, POLYIMIDE RESIN, MIXTURE SLURRY, ELECTRODE, MIXTURE SLURRY PRODUCTION METHOD, AND ELECTRODE FORMATION METHOD - The invention addresses the problem of providing a polyimide precursor, a polyimide precursor solution, and a mixture slurry, each capable of more firmly binding active material particles to a current collecting body. The polyimide precursor solution according to the invention contains a tetracarboxylic acid ester compound, a diamine compound having an anionic group, and a solvent. The solvent dissolves the tetracarboxylic acid ester compound and the diamine compound. As the tetracarboxylic acid ester compound, a 3,3′,4,4′-benzophenonetetracarboxylic acid diester is particularly preferred. Examples of the “diamine compound having an anionic group” include 3,4-diaminobenzoic acid, 3,5-diaminobenzoic acid, and m-phenylenediamine-4-sulfonic acid. Further, the mixture slurry according to the invention contains active material particles in the polyimide precursor solution. | 01-09-2014 |
20140017562 | LITHIUM ION BATTERY - A lithium ion battery includes at least one battery cell. The battery cell includes a cathode electrode, an anode electrode, and a separator. The separator is sandwiched between the cathode electrode and the anode electrode. At least one of the cathode electrode and the anode electrode includes a current collector. The current collector is a graphene layer. | 01-16-2014 |
20140017563 | LITHIUM ION BATTERY ELECTRODE - A current collector includes a support and at least one graphene layer located on the support. The support includes two surfaces. The at least one graphene layer is located on one of the two surfaces of the support. The at least one graphene layer includes a number of uniformly distributed graphenes. | 01-16-2014 |
20140017564 | LITHIUM-ION SECONDARY BATTERY, ELECTRODE FOR THE SECONDARY BATTERY, AND ELECTROLYTIC COPPER FOIL FOR ELECTRODE FOR THE SECONDARY BATTERY - To provide an electrolytic copper foil for a negative electrode for a lithium-ion secondary battery with which it is possible to produce a long-life lithium-ion secondary battery in which there is no decline in the capacity retention ratio even when the charge-discharge cycling is repeated, that has long life, and no deformation of a negative electrode current collector occurs. The electrolytic copper foil constituting the negative electrode current collector for the lithium-ion secondary battery has, after heat treatment at from 200 to 400° C., a 0.2% proof stress of 250N/mm | 01-16-2014 |
20140017565 | RECHARGEABLE BATTERY HAVING CURRENT COLLECTION PLATE WITH PROTRUSION - 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. | 01-16-2014 |
20140023920 | SECONDARY BATTERY - A secondary battery in which graphite that is an active material can occlude and release lithium efficiently is provided. Further, a highly reliable secondary battery in which the amount of lithium inserted and extracted into/from graphite that is an active material is prevented from varying is provided. The secondary battery includes a negative electrode including a current collector and graphite provided over the current collector, and a positive electrode. The graphite includes a plurality of graphene layers. Surfaces of the plurality of graphene layers are provided substantially along the direction of an electric field generated between the positive electrode and the negative electrode. | 01-23-2014 |
20140023921 | ELECTRODE HAVING POROUS COATING LAYER, MANUFACTURING METHOD THEREOF AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME - The present invention provides an electrode comprising a current collector; an electrode active material layer formed on at least one surface of the current collector and comprising a mixture of electrode active material particles and a first binder polymer; and a porous coating layer formed on the surface of the electrode active material layer, comprising a mixture of inorganic particles and a second binder polymer and having a thickness deviation defined by the following Formula ( | 01-23-2014 |
20140023922 | MANUFACTURING METHOD OF AN ELECTRODE FOR ELECTROCHEMICAL ELEMENT AND AN ELECTROCHEMICAL ELEMENT - Disclosed is a manufacturing method of an electrode for an electrochemical element having a superior adhesion and is used for an electrochemical element with excellent productivity due to a short predoping time. Specifically disclosed is that the method is characterized by comprising a step for compression forming of electrode material (a mixed powder or composite particles) including an alkaline metal powder or an alkaline earth metal powder each having a coated surface. | 01-23-2014 |
20140023923 | STRUCTURED ARRESTER FOR BATTERY CELLS - An arrester for a battery cell is described, the arrester essentially being formed from a conductive foil, wherein the conductive foil has structural components which enlarge the effective contact area between the foil and an active mass covering the foil when compared with the basic area of the foil. In addition, a method is described for producing a corresponding arrester and a battery cell having such an arrester. | 01-23-2014 |
20140023924 | BATTERY ELECTRODE STRUCTURE AND METHOD FOR MANUFACTURE THEREOF - Solid composite electrodes with electrode active layers that include an electrode active material, an optional electron conductive material, an optional binder and other optional additives for batteries which are not fuel cells are provided. The solid composite electrodes are formed by the deposition of an electrode composition (slurry) onto a current collector in one or many layers. The electrode structure may be characterized by a porosity of the electrode composition layer that decreases in a direction from the back side of the layer (close to the current collector) towards the outer side of the layer. The electrode structures can be used in for example chemical sources of electric energy such as primary (non-rechargeable) as well as secondary (rechargeable) batteries. | 01-23-2014 |
20140023925 | TITANIA-GRAPHENE ANODE ELECTRODE PAPER - A method for forming a nanocomposite material, the nanocomposite material formed thereby, and a battery made using the nanocomposite material. Metal oxide and graphene are placed in a solvent to form a suspension. The suspension is then applied to a current collector. The solvent is then evaporated to form a nanocomposite material. The nanocomposite material is then electrochemically cycled to form a nanocomposite material of at least one metal oxide in electrical communication with at least one graphene layer. | 01-23-2014 |
20140030590 | Solvent-free process based graphene electrode for energy storage devices - Disclosed is an electrode for an electrochemical energy storage device, the electrode comprising a self-supporting layer of a mixture of graphene sheets and spacer particles and/or binder particles, wherein the electrode is prepared without using water, solvent, or liquid chemical. The graphene electrode prepared by the solvent-free process exhibits many desirable features and advantages as compared to the corresponding electrode prepared by a known wet process. These advantages include a higher electrode specific surface area, higher energy storage capacity, improved or higher packing density or tap density, lower amount of binder required, lower internal electrode resistance, more consistent and uniform dispersion of graphene sheets and binder, reduction or elimination of undesirable effect of electrolyte oxidation or decomposition due to the presence of water, solvent, or chemical, etc. | 01-30-2014 |
20140030591 | ELECTROLYTIC COPPER FOIL FOR AN ANODE OF A NEGATIVE ELECTRODE COLLECTOR IN A SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - The present invention provides an electrolytic copper foil which is excellent in the extension property and can endure the change in the expansion and contraction at the fine units while having high strength, and a method of producing the same. Specifically, the electrolytic copper foil for a negative electrode collector in a secondary battery, wherein in a nominal stress strain curve, a tensile strength is 45 to 70 kg/mm | 01-30-2014 |
20140030592 | ELECTRODE BINDER COMPOSITION, ELECTRODE SLURRY, ELECTRODE, AND ELECTRICAL STORAGE DEVICE - An electrode binder composition is used to produce an electrode used for an electrical storage device, and includes (A) a polymer, (B) a compound represented by the following general formula (1), and (C) a liquid medium, the polymer (A) being fluorine-containing polymer particles or diene polymer particles, and a concentration of the compound (B) in the electrode binder composition being 5 to 500 ppm. | 01-30-2014 |
20140038038 | ELECTROCHEMICAL CELLS AND RELATED METHODS - An electrochemical cell is presented. The electrochemical cell includes an elongated ion-conducting separator defining at least a portion of a first compartment; a positive electrode composition disposed in the first compartment, the positive electrode composition comprising at least one electroactive metal, at least one alkali metal halide, and at least one electrolyte. A positive current collector is further disposed in the first compartment such that a portion of the positive current collector extends into the positive electrode composition, and a primary dimension of the extended portion of the positive current collector is less than about 20% of a primary dimension of the first compartment. A related method for the preparation of an electrochemical cell is also presented. | 02-06-2014 |
20140038039 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - In an aspect, a positive active material for a rechargeable lithium battery that includes a lithium composite oxide including a Fe-containing compound phase and a Li-containing compound phase, a method of preparing the same, and a rechargeable lithium battery including the same are provided. | 02-06-2014 |
20140038040 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - In an aspect, a negative active material for a rechargeable lithium battery including surface modified silicon oxide particles is disclosed. | 02-06-2014 |
20140038041 | ELECTRODE FOR ELECTRICITY STORAGE DEVICE, SLURRY FOR ELECTRODE, BINDER COMPOSITION FOR ELECTRODE, AND ELECTRICITY STORAGE DEVICE - An electrical storage device electrode includes a collector, and an active material layer that is formed on a surface of the collector, the active material layer including at least a polymer and an active material, and the active material layer having a polymer distribution coefficient of 0.6 to 1.0 and a density of 1.3 to 1.8 g/cm | 02-06-2014 |
20140038042 | HIGH CAPACITY MONOLITHIC COMPOSITE SI/CARBON FIBER ELECTRODE ARCHITECTURES SYNTHESIZED FROM LOW COST MATERIALS AND PROCESS TECHNOLOGIES - A composite Si-carbon fiber comprising a carbon matrix material with 1-90 wt % silicon embedded therein. The composite carbon fibers are incorporated into electrodes for batteries. The battery can be a lithium ion battery. A method of making an electrode incorporating composite Si-carbon fibers is also disclosed. | 02-06-2014 |
20140038043 | CATHODE ACTIVE MATERIAL, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL - The object of the present invention is to provide a lithium transition metal silicate-type cathode active material that shows superior cycle characteristics, and shows little deterioration of discharge capacity even after repeated charge-and-discharge. In the present invention, a cathode active material that is expressed by the general formula Li | 02-06-2014 |
20140038044 | Transition Metal Hexacyanometallate-Conductive Polymer Composite - A transition metal hexacyanometallate (TMHCM)-conductive polymer (CP) composite electrode is provided. The battery electrode is made up of a current collector and a transition metal hexacyanometallate-conductive polymer composite overlying the current collector. The transition metal hexacyanometallate-conductive polymer includes a A | 02-06-2014 |
20140045058 | Graphene Hybrid Layer Electrodes for Energy Storage - An article of manufacture comprises an electrically conductive plate and one or more hybrid layers stacked on the electrically conductive plate. Each of the one or more hybrid layers comprises a respective sheet comprising graphene. Each of the one or more hybrid layers also comprises a respective plurality of particles disposed on the respective sheet. Finally, each of the one or more hybrid layers comprises a respective ion conducting film disposed on the respective plurality of particles and the respective sheet. | 02-13-2014 |
20140045059 | CATHODE ELECTRODE AND LITHIUM ION BATTERY - A cathode electrode of a lithium ion battery includes a cathode current collector and a cathode material layer. The cathode material layer is located on a surface of the cathode current collector. The cathode material layer includes a cathode active material. The cathode active material includes sulfur grafted poly(pyridinopyridine). The sulfur grafted poly(pyridinopyridine) includes a poly(pyridinopyridine) matrix and sulfur dispersed in the poly(pyridinopyridine) matrix. The cathode current collector includes a polymer substrate and a graphene layer located on a surface of the polymer substrate adjacent to the cathode material layer. A lithium ion battery using the cathode electrode is also disclosed. | 02-13-2014 |
20140045060 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY EACH INCLUDING THE COMPOSITE ANODE ACTIVE MATERIAL, AND METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - In an aspect, a composite anode active material including a composite core; and a coating layer covering at least a region of the composite core, wherein the composite core comprises a carbonaceous substrate; and a nanostructure disposed on the substrate, and the coating layer includes a metal oxide; an anode and a lithium battery each including the composite anode active material; and a method of preparing the composite anode active material are provided. | 02-13-2014 |
20140045061 | ELECTROLYSIS COPPER-ALLOY FOIL, METHOD OF THE SAME, ELECTROLYTIC-SOLUTION USING THE PRODUCTION, NEGATIVE ELECTRODE AGGREGATION USED THE SAME, SECONDARY BATTERY, AND ELECTRODE OF THE SAME - The invention relates to an electrolytic copper alloy foil having large mechanical strength in an ordinary state and showing resistant to heat deterioration even when it is heated to 300° C. or more. That electrolytic copper alloy foil, which contains tungsten copper, preferably incorporates tungsten into copper foil as a copper alloy, has a tensile strength at ordinary temperature of 650 MPa, has a tensile strength after heat treatment at 300° C. for 1 hour of 450 MPa or more, and has a conductivity of 80% or more. Further preferably, the electrolytic copper foil has an elongation at ordinary temperature of 2.5% or more and an elongation after treatment at 300° C. for 1 hour of 3.5% or more. The electrolytic copper foil is produced by adding a thiourea compound, tungsten salt, and chloride ions to a sulfuric acid-copper sulfate electrolyte and performing electrolytic deposition. | 02-13-2014 |
20140045062 | METHOD OF FABRICATING FIBRES COMPOSED OF SILICON OR A SILICON-BASED MATERIAL AND THEIR USE IN LITHIUM RECHARGEABLE BATTERIES - An electrically interconnected mass includes elongated structures. The elongated structures are electrochemically active and at least some of the elongated structures cross over each other to provide intersections and a porous structure. The elongated structures include doped silicon. | 02-13-2014 |
20140045063 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY CELL, LITHIUM SECONDARY CELL EMPLOYING THE SAME, AND METHOD FOR PRODUCING THE SAME - Provided is a negative electrode active material for a lithium secondary cell, the material having the function of a binder for the active material, and being capable of stable reversible reactions with lithium. Also, provided are an extended-life lithium secondary cell having improved energy density and stable charge/discharge, and a method for producing the same. The negative electrode active material for a lithium secondary cell is polyimide represented by formula (1) (wherein R1 and R2 independently denote an alkyl, alkoxy, acyl, phenyl, or phenoxy group). | 02-13-2014 |
20140050976 | LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery | 02-20-2014 |
20140050977 | METHOD OF AND APPARATUS FOR MANUFACTURING ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY - An electrode for lithium-ion secondary battery comprises: a base member which functions as a current collector; and an active material layer formed in a surface of the base member as a stripe-like pattern including a plurality of active material lines which contain silicon or a silicon compound as an active material, which are spaced apart from each other and which protrude beyond the surface of the base member. | 02-20-2014 |
20140050978 | ADDITIVE FOR POSITIVE ELECTRODES OF LITHIUM SECONDARY BATTERIES, AND POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES - Provided are an additive for positive electrodes, which is capable of increasing the output of a lithium secondary battery and is capable of maintaining cycle characteristics even during high-speed charge and discharge; and a positive electrode for lithium secondary batteries. The additive for positive electrodes of lithium secondary batteries, which contains, as an essential constituent, a substituted polythiophene that has a repeating unit, which is obtained by substituting a hydrogen atom in the 3-position and/or in the 4-position of a thiophene ring with at least one group that is selected from the group consisting of a perfloroalkylalkoxy group, a perfloroalkoxy group, a perfloroalkoxyalkyl group and an alkyl group substituted with the perfloroalkylalkoxy group, as at least a part of a thiophene repeating group. | 02-20-2014 |
20140050979 | ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND PREPARATION THEREOF - The present invention relates to an anode active material for a lithium secondary battery, comprising a carbon material, and a coating layer formed on the surface of particles of the carbon material and having a plurality of Sn-based domains having an average diameter of 1 μm or less. The inventive anode active material having a Sn-based domains coating layer on the surface of a carbon material can surprisingly prevent stress due to volume expansion which generates by an alloy of Sn and lithium. Also, the inventive method for preparing an anode active material can easily control the thickness of the coating layer. | 02-20-2014 |
20140050980 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Provided is a negative electrode active material comprising (a) a core including a carbon-based material, and (b) an organic polymer coating layer formed of a polymer compound having a content of a fluorine component of 50 wt % or more on a surface of the core. | 02-20-2014 |
20140050981 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Provided is a negative electrode active material comprising (a) a core including one or more non-carbon-based materials selected from the group consisting of silicon, nickel, germanium, and titanium, and (b) an organic polymer coating layer formed of a polymer compound having a content of a fluorine component of 50 wt % or more on a surface of the core. | 02-20-2014 |
20140050982 | Sodium Iron(II)-Hexacyanoferrate(II) Battery Electrode and Synthesis Method - A method is provided for synthesizing sodium iron(II)-hexacyanoferrate(II). A Fe(CN) | 02-20-2014 |
20140057163 | COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY CONTAINING THE MATERIAL AND METHOD OF PREPARING THE SAME - A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode. The composite cathode active material includes: a lithium transition metal oxide; and a lithium-containing impurity on a surface of the lithium transition metal oxide. The lithium-containing impurity includes free lithium in an amount of about 0.050 wt % or less based on a total weight of the composite cathode active material, and LiOH and Li | 02-27-2014 |
20140057164 | ENHANCED CARBON BASED ELECTRODE FOR USE IN ENERGY STORAGE DEVICES - The present invention provides an enhanced electrode for an energy storage device, comprising a current collector and nanoform carbon, with active material disposed thereon. In particular embodiments, the present invention also provides energy storage devices comprising the enhanced electrodes of the invention, as well as techniques for fabrication. | 02-27-2014 |
20140057165 | POSITIVE ELECTRODE FOR SECONDARY BATTERY, SECONDARY BATTERY, AND METHOD FOR FABRICATING POSITIVE ELECTRODE FOR SECONDARY BATTERY - A positive electrode for a secondary battery which enables both good battery characteristics and electrode strength at a predetermined level, a secondary battery, and a method for fabricating the positive electrode for a secondary battery are provided. | 02-27-2014 |
20140057166 | COMPOSITE GRAPHITE PARTICLES AND USE THEREOF - Provided are Composite graphite particles comprising core material comprising graphite obtained by heat treating petroleum based coke with a grindability index of 35 to 60 at a temperature of not less than 2500° C. and not more than 3500° C. and carbonaceous layer present on the surface of the core material, wherein the composite graphite particles have an intensity ratio I | 02-27-2014 |
20140057167 | SECONDARY BATTERY AND CARBON INK FOR CONDUCTIVE AUXILIARY LAYER OF THE SAME - A secondary battery using a polymer radical material and a conducting additive in which the performance of a conductive auxiliary layer is further improved and the internal resistance is reduced, thereby achieving a higher output. Specifically disclosed is a secondary battery in which at least one of a positive electrode and a negative electrode uses, as an electrode active material, a polymer radical material and a conducting additive having electrical conductivity. By providing a conductive auxiliary layer between a current collector and the polymer radical material/conducting additive electrode which is mainly composed of graphite, fibrous carbon or a granular carbon having a DBP absorption of not more than 110 cm | 02-27-2014 |
20140065477 | POSITIVE ACTIVE MATERIAL COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, AND POSITIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A positive active material composition for a rechargeable lithium battery includes a positive active material including a first active material having a pH of about 5.00 to about 10.99 and a second active material having a pH of about 11.00 to about 13.00, an aqueous binder, and water. | 03-06-2014 |
20140065478 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - The present invention provides a method of manufacturing a nonaqueous electrolyte secondary battery in which graphite fissuring during rolling of the negative electrode mixture layer is prevented and a deterioration in the performance of the battery is thereby suppressed. The manufacturing method provided by the present invention is a method of manufacturing a nonaqueous electrolyte secondary battery that has a positive electrode and a negative electrode, and includes: a coating step of coating a current collector | 03-06-2014 |
20140065479 | CARBON MATERIAL FOR NONAQUEOUS SECONDARY BATTERY, NEGATIVE ELECTRODE USING CARBON MATERIAL AND NONAQUEOUS SECONDARY BATTERY - This invention aims to provide a carbon material for a nonaqueous secondary battery having a high capacity and excellent charging/discharging load characteristics, which is used as a negative electrode material for a nonaqueous secondary battery. This invention relates to a carbon material for a nonaqueous secondary battery, which has a specific (1) Raman R value, (2) N atom concentration/C atom concentration ratio, and (3) S atom concentration/C atom concentration ratio. | 03-06-2014 |
20140072869 | TAB LEAD AND METHOD OF PRODUCING THE SAME - A tab lead including a first insulating film made of resin is adhered to one of surfaces of a part of a region of a metal plate in a length direction of the metal plate and a second insulating film made of resin is adhered to the other surface of the part of the region. Both end portions of the first insulating film and both end portions of the second insulating film are integrally welded to each other. First protruding portions protruding outward in a thickness direction of the first insulating film are formed at regions of the first insulating film corresponding to both widthwise side edges of the metal plate and vicinities thereof. Second protruding portions protruding outward in a thickness direction of the second insulating film are formed at regions of the second insulating film corresponding to both widthwise side edges of the metal plate and vicinities thereof. | 03-13-2014 |
20140072870 | ALL-SOLID-STATE CELL - An all-solid-state cell has a positive electrode layer containing a positive electrode active material, a solid electrolyte layer containing a lithium ion conducting material, and a negative electrode layer containing a negative electrode active material. The negative electrode active material in the negative electrode layer contains a plurality of cylindrical carbon nanotube molecules, and the axes of the carbon nanotube molecules are oriented in a predetermined direction. | 03-13-2014 |
20140079993 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING COMPOSITE ANODE ACTIVE MATERIAL - In an aspect, a composite anode active material including particles, wherein the particles include: a first carbonaceous material that is substantially crystalline and includes at least one carbon nano-sheet; a non-carbonaceous material capable of intercalating and deintercalating lithium; and a second carbonaceous material that binds the first carbonaceous material and the non-carbonaceous material, wherein the particles have pores having a size of 50 nm or more is disclosed. | 03-20-2014 |
20140079994 | RELEASE SYSTEM FOR ELECTROCHEMICAL CELLS - Electrochemical cells, and more specifically, release systems for the fabrication of electrochemical cells are described. In particular, release layer arrangements, assemblies, methods and compositions that facilitate the fabrication of electrochemical cell components, such as electrodes, are presented. In some embodiments, methods of fabricating an electrode involve the use of a release layer to separate portions of the electrode from a carrier substrate on which the electrode was fabricated. For example, an intermediate electrode assembly may include, in sequence, an electroactive material layer, a current collector layer, a release layer, and a carrier substrate. The carrier substrate can facilitate handling of the electrode during fabrication and/or assembly, but may be released from the electrode prior to commercial use. | 03-20-2014 |
20140079995 | COMPOSITE PARTICLES FOR LITHIUM SECONDARY BATTERY POSITIVE ELECTRODES, METHOD FOR PRODUCING COMPOSITE PARTICLES FOR LITHIUM SECONDARY BATTERY POSITIVE ELECTRODES, METHOD FOR PRODUCING POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY - A composite particle for a lithium secondary battery positive electrode including | 03-20-2014 |
20140087250 | BINDER FOR A SECONDARY BATTERY CELL - A binder composition for inclusion in a composite material used in the formation of an electrode for inclusion in a secondary battery is provided. The binder composition comprises a metai ion sait of a carboxyiic acid of a poiymer or a copolymer, wherein the polymer or copolymer includes as a substituent one or more carboxyl comprising groups derived from a carboxyl comprising monomer unit selected from the group consisting an acrylic acid, an acrylic acid derivative, a maleic acid, a maleic acid derivative, a maleic anhydride and a maleic anhydride derivative, characterised in that 80 to 20% of the carboxyl groups are derived from an acrylic acid, an acrylic acid derivative, a maleic acid or a maleic acid derivative and 20 to 80% of the carboxyl groups are derived from maleic anhydride or a maleic anhydride derivative, but excluding lithium polyethylene-alt-maleic anhydride and lithium and sodium poly(maleic acid-co- acrylic acid). Composite electrode materials, electrode mixes, electrodes and electrochemical cells including the binder are provided. | 03-27-2014 |
20140087251 | ELECTRODE MATERIAL FOR POWER STORAGE DEVICE, ELECTRODE FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE - Irreversible capacity which causes a decrease in the initial capacity of a power storage device is reduced and the electrochemical decomposition of an electrolytic solution is suppressed. The decomposition reaction of an electrolytic solution as a side reaction of a power storage device is reduced or suppressed to improve the cycle performance of the power storage device. An electrode material for a power storage device includes active material particles and coating films covering part of surfaces of the active material particles. Carrier ions used for the power storage device can pass through the coating film. The product of the electric resistivity and the thickness of the coating film at 25° C. is greater than or equal to 20 Ωm·m. | 03-27-2014 |
20140087252 | LITHIUM ION SECONDARY BATTERY ELECTRODE, MANUFACTURING PROCESS FOR THE SAME, AND LITHIUM ION SECONDARY BATTERY USING THE ELECTRODE - To provide a lithium ion secondary battery electrode in which a coat is held on a surface of an active material layer over a long period of time to suppress decomposition of the electrolysis solution and to enhance the cyclability, a manufacturing process for the same, and a lithium ion secondary battery using the electrode. | 03-27-2014 |
20140093772 | ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - An electrode for a lithium secondary battery, the electrode including: an electrode active material; and a composite including a clay and a polymer intercalated between layers of the clay, a method of manufacturing the electrode, and a lithium secondary battery including the electrode. | 04-03-2014 |
20140093773 | ELECTRODE, METHOD FOR PRODUCING ELECTRODE, AND ENERGY DEVICE, ELECTRONIC DEVICE, AND TRANSPORTATION DEVICE INCLUDING ELECTRODE - Disclosed herein is an electrode for energy devices such as electric double layer capacitors, which includes conductive fibers made of carbon, such as carbon nanotubes, as an electrode active material and has a high capacitance. The electrode for energy devices includes a current collector and a plurality of conductive fibers (e.g., carbon nanotubes) provided to stand on a surface of the current collector so that their one ends are electrically connected to the surface of the current collector, wherein the conductive fibers are made of carbon and have carboxyl group-containing functional groups or oxo group-containing functional groups and hydroxyl group-containing functional groups attached thereto. The conductive fibers preferably carry a quinone group-containing compound. | 04-03-2014 |
20140093774 | LITHIUM POWDER, LITHIUM VANADIUM OXIDE, LITHIUM SECONDARY BATTERY USING A GEL-POLYMER ELECTROLYTE, AND METHOD FOR PREPARING AN ELECTRODE THEREOF - A lithium secondary battery includes an anode part having lithium powder, a cathode part having a non-lithiated active material and a gel-polymer electrolyte. Thus, an effective surface area of an electrode involved in a battery reaction can increase, a dendrite growth using a gel-polymer electrode can be suppressed and a high capacity and long service life can be achieved by using a non-lithiated cathode instead of a conventional lithiated cathode. | 04-03-2014 |
20140099538 | Solid-State Battery Electrodes - Embodiments of solid-state batteries, battery components, and related construction methods are described. The components include one or more embodiments of a low melt temperature electrolyte bonded solid-state rechargeable battery electrode and one or more embodiments of a composite separator having a low melt temperature electrolyte component. Embodiments of methods for fabrication of solid-state batteries and battery components are described. These methods include co-extrusion, hot pressing and roll casting. | 04-10-2014 |
20140099539 | NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, AND LITHIUM-ION SECONDARY BATTERY - To provide a lithium-ion secondary battery which has high charge and discharge capacity, is capable of being charged and discharged at high rate and has good cycle characteristics. A negative electrode includes a current collector and a negative electrode active material layer. The current collector includes a plurality of protrusion portions extending in the direction substantially perpendicular to the current collector and a base portion connected to the plurality of protrusion portions. The protrusion portions and the base portion are formed using the same material containing titanium. At least side surfaces of the protrusion portions are covered with the negative electrode active material layer. In the negative electrode active material layer, silicon layers and silicon oxide layers are alternately stacked between a plane where the protrusion portions are in contact with the negative electrode active material layer and a surface of the negative electrode active material layer. | 04-10-2014 |
20140099540 | LITHIUM-ENRICHED SOLID SOLUTION ANODE COMPOSITE MATERIAL AND PREPARATION METHOD FOR LITHIUM-ENRICHED SOLID SOLUTION ANODE COMPOSITE MATERIAL, LITHIUM-ION BATTERY ANODE PLATE, AND LITHIUM-ION BATTERY - Embodiments of the present application provide a lithium-enriched solid solution anode composite material, which includes xLi | 04-10-2014 |
20140099541 | SOLID ELECTROLYTE BATTERY AND POSITIVE ELECTRODE ACTIVE MATERIAL - Provided are: a solid electrolyte battery using a novel positive electrode active material that functions in an amorphous state; and a novel positive electrode active material that functions in an amorphous state. The solid electrolyte battery includes: a positive electrode layer including a positive electrode active material layer; a negative electrode layer; and a solid electrolyte layer formed between the positive electrode layer and the negative electrode layer, and the positive electrode active material includes a lithium-boric acid compound in an amorphous state, which contains Li, B, any element M1 selected from Cu, Ni, Co, Mn, Au, Ag, and Pd, and O. | 04-10-2014 |
20140099542 | LITHIUM ION SECONDARY BATTERY ELECTRODE, MANUFACTURING PROCESS FOR THE SAME, AND LITHIUM ION SECONDARY BATTERY USING THE ELECTRODE - To provide a lithium ion secondary battery electrode in which a coated layer is held on a surface of an active material layer over a long period of time to suppress decomposition of the electrolysis solution and to enhance the cyclability, a manufacturing process for the same, and a lithium ion secondary battery using the electrode. | 04-10-2014 |
20140099543 | NEGATIVE ELECTRODE TERMINAL FOR BATTERY AND METHOD FOR PRODUCING NEGATIVE ELECTRODE TERMINAL FOR BATTERY - A negative electrode terminal for a battery in which a first metal layer and a second metal layer hardly separate from each other is provided by inhibiting an intermetallic compound from being formed between the first metal layer and the second metal layer. This negative electrode terminal ( | 04-10-2014 |
20140099544 | ELECTRODE MATERIAL AND MANUFACTURING METHOD THEREOF - Provided is an electrode material with excellent tab weldability and realizing decreased contact resistance with an active material layer. A collector (electrode material) ( | 04-10-2014 |
20140106215 | HIGH ENERGY DENSITY SECONDARY LITHIUM BATTERIES - A lithium ion battery includes a positive electrode comprising carbon fibers, a binder composition with conductive carbon, and a lithium rich composition. The lithium rich composition comprises at least one selected from the group consisting of Li | 04-17-2014 |
20140106216 | THIN FILM BATTERY AND LOCALIZED HEAT TREATMENT - A lithium battery comprises a battery support and a cathode current collector directly on and in contact with the battery support. The cathode current collector is composed of molybdenum and comprises a thickness of at least about 0.01 microns. A cathode is on the cathode current collector, an electrolyte on the cathode, and at least one of an anode or anode current collector on the electrolyte. | 04-17-2014 |
20140113189 | NEGATIVE ELECTRODE ACTIVE SUBSTANCE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME - The present invention provides an anode material for a lithium secondary battery, which material realizes prolongation of the cycle life of a lithium secondary battery. The present invention relates to an anode active material for a lithium secondary battery, the active material containing a powder produced by a step of forming an etched foil through etching of both surfaces of a foil of Al having a purity of 90 mass % or higher, and a step of shredding the etched foil, the steps being carried out in this order. | 04-24-2014 |
20140120416 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - In an aspect, a negative electrode for a lithium secondary battery and a method of manufacturing the same is provided. The negative electrode for the lithium secondary battery includes a negative active material layer. | 05-01-2014 |
20140120417 | BATTERY, ELECTRODE, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, POWER STORAGE DEVICE, AND POWER SYSTEM - There is provided a battery including a positive electrode, and a negative electrode. At least one electrode of the positive electrode and the negative electrode includes a current collector, a mixture layer over one main surface of the current collector, the mixture layer including a gap through which a part of the current collector is exposed, a lead bonded to an exposed surface of the current collector exposed through the gap, and a protective layer configured to protect the current collector, at least a part of the protective layer being over the exposed surface of the current collector and interposed between a part of the lead and the exposed surface. The part of the lead includes at least a part of a peripheral edge of the lead. | 05-01-2014 |
20140120418 | NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, NEGATIVE ELECTRODE INCLUDING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE - A negative active material, a method of preparing the same, and a lithium secondary battery including the negative electrode. The negative active material includes a plurality of titanium oxide nanotubes, wherein the Raman shift of the negative active material includes a characteristic peak located at a Raman shift between about 680 cm | 05-01-2014 |
20140120419 | CARBON NANOTUBE GROWTH ON COPPER SUBSTRATES - A method of forming carbon nanotubes on a copper substrate may comprise providing a copper substrate, depositing a titanium metal thin film adhesion layer on the copper substrate, depositing a titanium nitride thin film on the titanium metal thin film, the titanium nitride thin film being between 100 and 200 nanometers in thickness, depositing a catalyst metal on the titanium nitride thin film, the catalyst metal being in the form of discrete particles on the surface of the titanium nitride thin film, and growing carbon nanotubes on the discrete particles of catalyst metal, the carbon nanotubes being grown to an average length of at least 3 microns, wherein the titanium nitride thin film is a diffusion barrier layer preventing alloying of copper with the catalyst metal. To form a silicon battery electrode, the method may further include depositing silicon on the carbon nanotubes over their entire length. | 05-01-2014 |
20140120420 | COMPOSITE ELECTRODE MATERIAL - A composite electrode material consisting of a carbon coated complex oxide, fibrous carbon and a binder. Said material is prepared by a method which includes co-grinding an active electrode material and fibrous carbon, and adding a binder to the co-grinded mixture to lower the viscosity of the mixture. The fibrous carbon is preferably vapor grown carbon fibers. | 05-01-2014 |
20140120421 | ALL-SOLID BATTERY AND MANUFACTURING METHOD THEREFOR - A method for manufacturing an all-solid battery that includes: preparing a first green sheet for at least any one of a positive electrode layer and a negative electrode layer, preparing a second green sheet for at least any one of a solid electrolyte layer and a current collector layer; and stacking the first green sheet and the second green sheet to form a stacked body while applying pressure so that the stacked body has an elongation percentage of 2.0% or less in the planar direction of the first and second green sheets. | 05-01-2014 |
20140127563 | COMPOSITION FOR POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING SAME - Disclosed is a positive electrode composition for a lithium secondary battery and a secondary lithium battery using the same. The positive electrode composition for a lithium secondary battery includes a positive active material, a binder, and a compound represented by the following Chemical Formula 1. | 05-08-2014 |
20140127564 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative electrode for a rechargeable lithium battery includes a current collector and a negative active material layer including a negative active material on the current collector. A rechargeable lithium battery includes the negative electrode. The negative active material includes amorphous carbon with an average aspect ratio of 1.1 to 6, included in an amount of about 55.5 wt % to about 99.5 wt % based on the total weight of the negative active material layer. | 05-08-2014 |
20140127565 | ELECTRODE AND ELECTRICAL STORAGE DEVICE FOR LEAD-ACID SYSTEM - The present invention generally relates to electrodes for use in lead-acid battery systems, batteries and electrical storage devices thereof, and methods for producing the electrodes, batteries and electrical storage devices. In particular, the electrodes comprise active battery material for a lead-acid storage battery, wherein the surface of the electrode is provided with a coating layer comprising a carbon mixture containing composite carbon particles, wherein each of the composite carbon particles comprises a particle of a first capacitor carbon material combined with particles of a second electrically conductive carbon material. The electrical storage devices and batteries comprising the electrodes are, for example, particularly suitable for use in hybrid electric vehicles requiring a repeated rapid charge/discharge operation in the PSOC, idling-stop system vehicles, and in industrial applications such as wind power generation, and photovoltaic power generation. | 05-08-2014 |
20140127566 | POWER STORAGE DEVICE ELECTRODE, METHOD FOR FORMING THE SAME, POWER STORAGE DEVICE, AND ELECTRICAL DEVICE - Irreversible capacity which causes a decrease in the charge and discharge capacity of a power storage device is reduced, and electrochemical decomposition of an electrolyte solution and the like on a surface of an electrode is inhibited. Further, the cycle characteristics of the power storage device is improved by reducing or inhibiting a decomposition reaction of the electrolyte solution and the like occurring as a side reaction in repeated charging and discharging of the power storage device. A power storage device electrode includes a current collector and an active material layer that is over the current collector and includes a binder and an active material. A coating film is provided on at least part of a surface of the active material. The coating film is spongy. | 05-08-2014 |
20140127567 | ELECTRODE FOR POWER STORAGE DEVICE, POWER STORAGE DEVICE, AND MANUFACTURING METHOD OF ELECTRODE FOR POWER STORAGE DEVICE - To improve the long-term cycle performance of a lithium-ion battery or a lithium-ion capacitor by minimizing the decomposition reaction of an electrolytic solution and the like as a side reaction of charge and discharge in the repeated charge and discharge cycles of the lithium-ion battery or the lithium-ion capacitor. A current collector and an active material layer over the current collector are included in an electrode for a power storage device. The active material layer includes a plurality of active material particles and silicon oxide. The surface of one of the active material particles has a region that is in contact with one of the other active material particles. The surface of the active material particle except the region is partly or entirely covered with the silicon oxide. | 05-08-2014 |
20140127568 | POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, METHOD FOR FORMING THE SAME, NONAQUEOUS SECONDARY BATTERY, AND ELECTRICAL DEVICE - A positive electrode for a nonaqueous secondary battery including an active material layer which has sufficient electron conductivity with a low ratio of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery including an active material layer which is highly filled with an active material, id est, including the active material and a low ratio of a conductive additive. The active material layer includes a plurality of particles of an active material with a layered rock salt structure, graphene that is in surface contact with the plurality of particles of the active material, and a binder. | 05-08-2014 |
20140127569 | COPPER FOIL PROVIDED WITH CHROMATE FILM FOR NEGATIVE ELECTRODE CURRENT COLLECTOR, AND NEGATIVE ELECTRODE MATERIAL USING THE COPPER FOIL PROVIDED WITH CHROMATE FILM FOR NEGATIVE ELECTRODE CURRENT COLLECTOR - An object of the present invention is to eliminate deviation in the quality of a chromate film provided on a copper foil for a negative electrode current collector to eliminate fluctuation of electric capacity in a lithium ion secondary battery. | 05-08-2014 |
20140127570 | Process for the Manufacture of Carbon Sheet for an Electrode - A method of making a single carbon sheet for an electrode includes mixing activated carbon; adding a dispersion comprising a PTFE binder and water to the activated carbon to form a mixture; adding the mixture to a jet mill, and fibrillating the PTFE binder; and feeding the mixture with fibrillated PTFE to a roll mill to form a single carbon sheet in a single pass. | 05-08-2014 |
20140127571 | COMPOSITION FOR FORMING SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY ELECTRODE, AND SECONDARY BATTERY - The present invention addresses the problem of providing an electrode-forming composition, which is used for the purpose of producing a secondary battery that has excellent charge and discharge cycle characteristics, and which exhibits excellent dispersibility of an active material and a conductive assistant. The problem is solved by a composition for forming a secondary battery electrode, which contains (A) an electrode active material and/or (B) a carbon material that serves as a conductive assistant, (C) an amphoteric resin-type dispersant that is obtained by neutralizing at least some carboxyl groups in a copolymer containing aromatic rings, carboxyl groups and amino groups with a basic compound, and (D) an aqueous liquid medium. | 05-08-2014 |
20140127572 | LITHIUM ION SECONDARY BATTERY - Provided is a lithium ion secondary battery capable of realizing a high energy density while maintaining output. A lithium ion secondary battery D | 05-08-2014 |
20140127573 | MULTI-PHASE SEPARATED SILICON BASED ALLOYS AS NEGATIVE ELECTRODE MATERIAL FOR LITHIUM BATTERIES - A particulate composite of silicon, tin, and aluminum (or other suitable metal) is prepared as a negative electrode composition with increased lithium insertion capacity and durability for use with a metal current collector in cells of a lithium-ion battery or a lithium-sulfur battery. This electrode material is formed such that the silicon is present as a distinct amorphous phase in separate matrix phases of crystalline tin and crystalline aluminum. While the distinct tin and aluminum phases provide electron conductivity, each phase accommodates the insertion and extraction of lithium in the operation of the cell and all phases interact in minimizing mechanical damage to the material as the cell experiences repeated charge and discharge cycles. Other suitable metals for use in the composite with silicon and tin include copper and titanium. | 05-08-2014 |
20140127574 | SECONDARY-BATTERY CURRENT COLLECTOR, SECONDARY-BATTERY CATHODE, SECONDARY-BATTERY ANODE, SECONDARY BATTERY AND PRODUCTION METHOD THEREOF - A secondary-battery current collector comprising an aluminum foil and a film containing an ion-permeable compound and carbon fine particles formed thereon or a secondary-battery current collector comprising an aluminum foil, a film containing an ion-permeable compound and carbon fine particles formed thereon as the lower layer, and a film containing a binder, carbon fine particles and a cathodic electroactive material formed thereon as the upper layer, a production method of the same, and a secondary battery having the current collector are provided. | 05-08-2014 |
20140134484 | Stepped Electrode Assembly - Disclosed herein is an electrode assembly including two or more electrode plates, each of which has electrode tabs, and a separator plate disposed between the electrode plates and/or a one-unit separation sheet disposed between the electrode plates to cover side surfaces of the electrode plates, which constitute an electrode tab non-formation region, wherein the electrode plates are stacked in a height direction on the basis of a plane such that the electrode plates having opposite polarities face each other in a state in which the separator plate and/or the separation sheet is disposed between the electrode plates, a stack constituted by the electrode plates includes electrode plates having different sizes, and an absolute value of the difference in thickness between the electrode plates having different sizes facing each other is 0 to 79 μm. | 05-15-2014 |
20140134485 | NEGATIVE-ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, AND NEGATIVE ELECTRODE AS WELL AS SECONDARY BATTERY USING THE SAME - A negative-electrode active material for secondary battery includes a sulfur-modified polyacrylonitrile. The sulfur-modified polyacrylonitrile includes a polyacrylonitrile, and sulfur being introduced into the polyacrylonitrile. | 05-15-2014 |
20140134486 | METHOD FOR MANUFACTURING LITHIUM ION SECONDARY BATTERY - The method for manufacturing a lithium ion secondary battery includes a binder coating step ( | 05-15-2014 |
20140134487 | ELECTRIC STORAGE DEVICE AND METHOD FOR PRODUCING THE SAME - An electric storage device includes an electrolyte and an electric storage unit including a positive electrode including a positive-electrode collector electrode and a positive-electrode active-material layer disposed on the positive-electrode collector electrode; a negative electrode including a negative-electrode collector electrode and a negative-electrode active-material layer disposed on the negative-electrode collector electrode and facing the positive-electrode active-material layer; a first insulating layer bonded to the positive electrode and the negative electrode to isolate the positive electrode and the negative electrode from each other; and a region that is sealed with the first insulating layer in plan view and that holds the electrolyte between the positive electrode and the negative electrode, wherein an air permeability P of the first insulating layer satisfies the formula 1250 s/100 cc | 05-15-2014 |
20140141326 | Electrode Sheet Including Notching Portion - Disclosed herein is an electrode sheet having an electrode active material applied to one major surface or opposite major surfaces of a current collector sheet, the electrode sheet being cut to manufacture a plurality of unit electrode plates, wherein first notch portions are formed at one side, selected from between an upper side and a lower side, of the electrode sheet such that the first notch portions are arranged at intervals corresponding to a width of each of the unit electrode plates and second notch portions corresponding to the first notch portions are formed at the other side of the electrode sheet, and wherein an upper end cut side for a cutting margin is formed at each of the second notch portions, the upper end cut side being smaller in size than a lower end cut side. | 05-22-2014 |
20140141327 | LEAD-ACID BATTERY FORMULATIONS CONTAINING DISCRETE CARBON NANOTUBES - Compositions of discrete carbon nanotubes for improved performance lead acid batteries. Further disclosed is a method to form a lead-acid battery with discrete carbon nanotubes. | 05-22-2014 |
20140147741 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY CONTAINING THE SAME, AND METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - In an aspect, a composite anode active material including: a porous particles, said porous particles including: a plurality of composite nanostructures; and a first carbonaceous material binding the composite nanostructures, wherein the porous particles have pores within the particle, and wherein the composite nanostructures include a crystalline second carbonaceous material substrate including at least one carbon nano-sheet, and a plurality of metal nanowires arranged at intervals on the crystalline second carbonaceous material substrate is disclosed. | 05-29-2014 |
20140147742 | Battery with Increased Energy Density and Method of Manufacturing the Same - A battery core includes an anode electrode collector and a cathode current collector. The battery core is created by defining an anode solution cavity on an anode electrode collector; defining a cathode solution cavity on a cathode electrode collector; depositing an anode solution into the anode solution cavity; depositing a cathode solution into the cathode solution cavity; curing the anode solution within the anode solution cavity; and curing the cathode solution within the cathode solution cavity. The anode electrode collector and the cathode current collector may be combined in a sandwich configuration and may be separated by one or more separators. | 05-29-2014 |
20140147743 | FLEXIBLE ELECTRODE OF AN ELECTROCHEMICAL CELL - The present invention relates to an electrode of an electrochemical cell, comprising at least a fibrous active electrode material, wherein the fibers of the active material are arranged to form a nonwoven or felt-like self-supporting structure. Moreover the invention relates to a respective electrochemical cell and to a method of making such an electrode. | 05-29-2014 |
20140147744 | POSTIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - Provided is a cathode material for lithium ion secondary battery containing a composite material of a lithium silicate crystal and a carbon material. The composite material shows a peak in a wave number range from 1400 cm | 05-29-2014 |
20140147745 | BINDER FOR STORAGE BATTERY DEVICE - To provide a binder for a storage battery device, whereby good adhesion is obtainable, and it is possible to realize good charge and discharge characteristics in a secondary battery by well suppressing swelling of an electrode by an electrolytic solution. A binder for a storage battery device, which is made of a fluorinated copolymer comprising repeating units (a) derived from tetrafluoroethylene and repeating units (b) derived from propylene, wherein the molar ratio (a)/(b) is from 60/40 to 75/25, and the total of the repeating units (a) and (b) is at least 90 mol % in all repeating units. | 05-29-2014 |
20140147746 | COLLECTOR FOR BIPOLAR LITHIUM ION SECONDARY BATTERIES - A collector for bipolar lithium ion secondary batteries comprises a first conductive layer that is obtained by adding a conductive filler to a base that contains an imide group-containing resin, and a second conductive layer that has a function of blocking lithium ions. The second conductive layer comprises a blocking resin layer that is obtained by adding a conductive filler to a base that contains a resin which contains no imide group, and a metal layer. This collector for bipolar lithium ion secondary batteries is used in such a manner that the first conductive layer is on the positive electrode active material layer side with respect to the second conductive layer. | 05-29-2014 |
20140147747 | Three-Dimensional (3D) Porous Electrode Architecture for a Microbattery - A three-dimensional porous electrode architecture for a microbattery includes a substrate having first and second conductive patterns disposed thereon where the first and second conductive patterns are electrically isolated from each other, a three-dimensional porous cathode disposed on the first conductive pattern, and a three-dimensional porous anode disposed on the second conductive pattern. The porous cathode includes a first conductive scaffold conformally coated with a layer of a cathode active material and having a porosity defined by a network of interconnected pores, where the first conductive scaffold has a lateral size and shape defined by the first conductive pattern and porous side walls oriented substantially perpendicular to the substrate. The porous anode includes a second conductive scaffold conformally coated with a layer of an anode active material and having a porosity defined by a network of interconnected pores. | 05-29-2014 |
20140154562 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for a rechargeable lithium battery is disclosed. The negative electrode includes a current collector and a negative active material layer positioned on the current collector and including a negative active material and a binder, wherein the negative active material includes a silicon-based material, a tin-based material, or a combination thereof, and the binder includes an organic acid including a carboxyl group-containing polymer and an organic base having a cyclic structure. A method of preparing the same, and a rechargeable lithium battery including the same are also disclosed. | 06-05-2014 |
20140154563 | COMPOSITE PARTICLES FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL ELEMENT, ELECTROCHEMICAL ELEMENT, AND METHOD FOR PRODUCING COMPOSITE PARTICLES FOR POSITIVE ELECTRODE OF ELECTROCHEMICAL ELEMENT - Composite particles for a positive electrode of an electrochemical element include a conductive material, a Ni containing positive electrode active material, a water soluble resin including a monomeric unit containing an acidic functional group, and a granular binder resin. The content of the water soluble resin is 1 to 10 parts by mass per 100 parts by mass of the Ni containing positive electrode active material. An electrochemical element includes a collector and a positive electrode active material layer obtained by formation with the composite particles. Furthermore, a method for producing the composite particles includes drying and granulating an aqueous slurry composition including the above components in order to obtain the composite particles. The content in the slurry composition of the water soluble resin is 1 to 10 parts by mass per 100 parts by mass of the Ni containing positive electrode active material. | 06-05-2014 |
20140154564 | ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Provided are an anode active material including carbon-based particles, silicon nanowires grown on the carbon-based particles, and a carbon coating layer on surfaces of the carbon-based particles and the silicon nanowires, and a method of preparing the anode active material. | 06-05-2014 |
20140154565 | ELECTRODE ASSEMBLY, FABRICATING METHOD OF THE ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL CONTAINING THE ELECTRODE ASSEMBLY - A fabricating method of a unit structure for accomplishing an electrode assembly formed by a stacking method, and an electrochemical cell including the same are disclosed. The fabricating method of the electrode assembly is characterized with fabricating the unit structure by conducting a first process of laminating and forming a bicell having a first electrode/separator/second electrode/separator/first electrode structure, and conducting a second process of laminating first separator/second electrode/second separator one by one on one of the first electrode among two of the first electrodes. | 06-05-2014 |
20140154566 | ANODE FOR SECONDARY BATTERY, SECONDARY BATTERY, AND METHOD OF MANUFACTURING ANODE FOR SECONDARY BATTERY - An anode for a secondary battery capable of improving cycle characteristics, a secondary battery using the anode, and a method of manufacturing an anode for secondary battery. An anode active material layer is formed by vapor phase deposition method, and contains Si as an element. In the anode active material layer, there are a plurality of primary particles grown in the thickness direction. The primary particles aggregate and form a plurality of secondary particles. At least some of the primary particles have shape curved in the identical direction to an anode current collector on the cross section in the thickness direction. Thereby, stress due to expansion and shrinkage due to charge and discharge can be relaxed. | 06-05-2014 |
20140154567 | ELECTROE CONSTITUENT MEMBER FOR BATTERY MODULE - An electrode constituent member for a battery module includes a current-carrying member including an internal connection portion relative to a tab-shaped terminal of an electricity-storage cell, and an external connection portion exposed to an outside of the battery module; a fastener member for fastening a member electrically connecting electrodes of a plurality of battery modules to the external connection portion of the current-carrying member; and an insulating member positioned between the external connection portion of the current-carrying member and the electricity-storage cell. In an inner side of the external connection portion, clamp portions receiving the insulating member in between are formed. In the clamp portions and the insulating member, respectively, engagement portions, engaging with each other when the insulating member is received, are formed. | 06-05-2014 |
20140154568 | NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERY, OUTER CASE FOR ALKALINE SECONDARY BATTERY AND ALKALINE SECONDARY BATTERY - A negative electrode for an alkaline secondary battery includes a current collecting substrate having a substrate containing iron. The current collecting substrate does not have a conductive protecting layer, or has a conductive protecting layer having a thickness of 3 μm or less or having defects, on the substrate. The negative electrode contains magnesium or a magnesium compound and a hydrogen storing alloy. | 06-05-2014 |
20140154569 | CONDUCTIVE ADHESIVE COMPOSITION FOR ELECTROCHEMICAL ELEMENT ELECTRODE, COLLECTOR WITH ADHESIVE LAYER, AND ELECTROCHEMICAL ELEMENT ELECTRODE - To provide a conductive adhesive composition for an electrochemical element electrode and used in forming a conductive adhesive layer that is highly uniform and is interposed between a collector and an electrode composition layer, being able to contribute to increased adhesion between the two. The conductive adhesive composition for an electrochemical element electrode is characterized by containing: conductive carbon; a particulate copolymer (A) containing a dibasic acid monomer unit; a particulate copolymer (B) containing an ethylenically unsaturated carboxylic acid amide derivative unit; and a dispersing agent. | 06-05-2014 |
20140154570 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY CELL AND LITHIUM ION SECONDARY CELL - A positive electrode material for a lithium ion secondary cell, includes: a binding agent in which an active material formed from a lithium metal oxide are dispersed together with barium titanate and conductive carbon. | 06-05-2014 |
20140162118 | ELECTRODE STRUCTURE OF LITHIUM ION BATTERY - An electrode structure of a lithium ion battery includes a current collector, at least one energy type active layer, and at least one power type active layer. The energy type active layer and the power type active layer are formed on the current collector. The energy type active layer includes a first lithium-containing compound and multiple first conductive particles. The power type active layer includes a second lithium-containing compound and multiple second conductive particles. The first and second lithium-containing compounds are lithium-containing complex transitional metal oxides. Compositions of the first and second lithium-containing compounds include at least one of Ni, Co and Mn. A lithium ion diffusion coefficient of the second lithium-containing compound is greater than that of the first lithium-containing compound. A specific capacity of the first lithium-containing compound is greater than that of the second lithium-containing compound. | 06-12-2014 |
20140162119 | POSITIVE ACTIVE MATERIAL, POSITIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A positive active material for a rechargeable lithium battery is disclosed. The positive material includes including a lithium-manganese oxide-based solid solution including primary particles and secondary particles having a particle diameter (D50) in the range of about 1 μm to about 5 μm, a particle diameter (D90) in the range of less than about 8 μm, and a crystallite diameter of less than or equal to about 150 nm. The positive electrode for a rechargeable lithium battery includes the lithium manganese oxide-based solid solution is also disclosed | 06-12-2014 |
20140162120 | ANODE AND BATTERY - A battery including a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has an insulative coat on an anode active material layer provided on an anode current collector. The coat contains an insulating material such as a meal hydroxide and a metal oxide. The coat is in a form of plate divided into a plurality of portions. The insulation property of the coat prevents internal short circuit. A plurality of portions of the coat prevent separation of the anode active material layer and decomposition of the electrolytic solution. Further, even when short circuit occurs, heat generation is prevented by heat absorption characteristics of the coat. | 06-12-2014 |
20140170482 | ELECTRODES, ELECTROCHEMICAL CELLS, AND METHODS OF FORMING ELECTRODES AND ELECTROCHEMICAL CELLS - Electrodes and methods of forming electrodes are described herein. The electrode can be an electrode of an electrochemical cell or battery. The electrode includes a current collector and a film in electrical communication with the current collector. The film may include a carbon phase that holds the film together. The electrode further includes an electrode attachment substance that adheres the film to the current collector. | 06-19-2014 |
20140170483 | METHOD FOR THE PREPARATION OF GRAPHENE/SILICON MULTILAYER STRUCTURED ANODES FOR LITHIUM ION BATTERIES - Multilayer structures with alternating graphene and Si thin films were constructed by a repeated process of filtering liquid-phase exfoliated grapheme film and subsequent coating of amorphous Si film using plasma-enhanced chemical vapor deposition (PECVD) method. The multilayer-structure composite films, fabricated on copper current collectors, can be directly used as anodes for rechargeable lithium-ion batteries (LIBs) without the addition of polymer binders or conductive additives. Fabricated coin-type half cells based on the new anode materials easily achieved a capacity almost four times higher than the theoretical value of graphite even after 30 cycles. These cells also demonstrated improved capacity retention and enhanced rate capability during charge/discharge processes compared to those of pure Si film-based anodes. | 06-19-2014 |
20140170484 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for a rechargeable lithium battery including a current collector and a negative active material layer positioned on the current collector, wherein the negative active material layer includes a first active material including a carbon-based material, a composite material including a second active material including a silicon-based material or a tin-based material, the second active material being coated with a combined binder and a fiber-shaped conductive material on the surface thereof, and a binder, a rechargeable lithium battery including the same and a method of preparing the same. | 06-19-2014 |
20140170485 | METHOD FOR PREPARING ANODE ACTIVE MATERIAL, ANODE ACTIVE MATERIAL PREPARED THEREFROM AND LITHIUM SECONDARY BATTERY HAVING THE SAME - The present invention relates to a method for preparing an anode active material, comprising (S1) forming a shell being a coating layer comprising a carbon material on the surface of a core comprising silicon oxide particles, to obtain a silicon oxide-carbon composite having a core-shell structure; (S2) mixing the silicon oxide-carbon composite with an oxygen-containing lithium salt, followed by heat treatment to produce a silicon oxide-lithium alloy, thereby obtaining a (SiO | 06-19-2014 |
20140170486 | COMPOSITE PARTICLES FOR ELECTROCHEMICAL DEVICE ELECTRODE, MATERIAL FOR ELECTROCHEMICAL DEVICE ELECTRODE, AND ELECTROCHEMICAL DEVICE ELECTRODE - Composite particles for electrochemical device electrode which contain an electrode active material, a non-water soluble particle-shaped polymer, and a water-soluble polymer having a sulfonic acid group are provided. According to the present invention, composite particles for electrochemical device electrode are high in fluidity, exhibit high adhesion with a current collector, and can provide an electrochemical device electrode which is high in initial capacity, low in internal resistance, an excellent in high temperature storage characteristics are provided. | 06-19-2014 |
20140170487 | LITHIUM-ION SECONDARY BATTERY - A negative electrode sheet of a lithium-ion secondary battery has a negative electrode current collector and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer contains flake graphite particles and has a first region neighboring the negative electrode current collector and a second region neighboring a surface side that are different in perpendicularity of the graphite particles. The perpendicularity of the graphite particles is defined as (m1/m2), where, when the inclination θn of each of the graphite particles is specified relative to a surface of the negative electrode current collector, m1 is the number of the graphite particles having an inclination θn of 60°≦θn≦90° and m2 is the number of the graphite particles having an inclination θn of 0°≦θn≦30°. | 06-19-2014 |
20140170488 | COLLECTOR, ELECTRODE STRUCTURE, NON-AQUEOUS ELECTROLYTE CELL, AND ELECTRICITY STORAGE COMPONENT - An object of the present invention is to provide a current collector which can decrease the internal resistance of a non-aqueous electrolyte battery, be used suitably for a non-aqueous electrolyte battery such as a lithium ion secondary battery and the like or for an electrical storage device such as a lithium ion capacitor and the like, and improve high rate characteristics. According to the present invention, a current collector which is structured by forming a resin layer possessing conductivity on at least one side of a conductive substrate is provided. The resin layer contains a chitosan-based resin and a conductive material, and the water contact angle of the surface of the resin layer measured by θ/2 method in a thermostatic chamber at 23° C. is 5 degrees or more and 60 degrees or less. In addition, an electrode structure, a non-aqueous electrolyte battery, and an electrical storage device which use the current collector are provided. | 06-19-2014 |
20140170489 | METHOD OF MANUFACTURING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY - In manufacturing of a negative electrode material of a lithium ion secondary battery provided with a negative electrode mixture layer including a negative electrode active substance on a surface of a negative electrode current collector, one or mixture selected from granular materials alloyable with lithium and carbon materials for storing and releasing lithium is used as the negative electrode active substance; manufacturing method of a negative electrode material for a lithium ion secondary battery employed is characterized in that an electro-deposited copper foil in which a surface roughness (Ra) is 0.20 μm06-19-2014 | |
20140170490 | LITHIUM SECONDARY BATTERY NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING THE SAME - Provided is a negative electrode having a new structure for realizing a lithium secondary battery having increased charging/discharging capacities and a battery capacity that is reduced less due to repeated charging/discharging. The negative electrode for a lithium secondary battery includes a current collector substrate; a carbon nanochips layer including graphene sheets grown to incline in irregular directions independently from the current collector substrate; and a silicon thin film layer on the carbon nanochips layer, in which gaps among the carbon nanochips are formed between the silicon thin film layer and the current collector substrate. The Raman spectrum of graphite forming the carbon nanochips layer has a g/d ratio of 0.30 to 0.80, both inclusive, and the crystallinity level of the graphite is lower than that of graphite forming carbon nanowalls. The carbon nanochips layer can be formed by a plasma CVD method using a gaseous mixture of methane and hydrogen, for example. | 06-19-2014 |
20140178753 | LITHIUM ION BATTERY AND ELECTRODE STRUCTURE THEREOF - A lithium ion battery and an electrode structure thereof are provided. The electrode structure at least includes a current collecting substrate, an electrode active material layer on the current collecting substrate, and a complex thermo-sensitive coating layer sandwiched in between the current collecting substrate and the electrode active material layer. The complex thermo-sensitive coating layer at least contains two or more of PTC (positive temperature coefficient) materials so as to have adjustable stepped resistivity according to temperature rise. | 06-26-2014 |
20140178754 | ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE ANODE ACTIVE MATERIAL - Provided are an anode active material including silicon oxide particles (SiOx, where x satisfies 006-26-2014 | |
20140178755 | NEGATIVE-ELECTRODE TERMINAL FOR CELL - A negative-electrode terminal for a cell in which separation between a first metal layer and a second metal layer hardly takes place is provided by suppressing excess formation of an intermetallic compound on a bond interface between the first metal layer and the second metal layer. This negative-electrode terminal for a cell includes a clad portion formed by bonding a first metal layer made of Al or an Al alloy and a second metal layer containing Ni and Cu and consisting of one or a plurality of layers to each other. The first metal layer includes a connected region connected with a cell terminal connecting plate and a stacked region adjacent to the connected region on the side of the same surface, while the second metal layer is bonded to the first metal layer in the stacked region and configured to be connectable to cell negative electrodes of cells. | 06-26-2014 |
20140178756 | COMPOSITE PARTICLES FOR ELECTROCHEMICAL DEVICE ELECTRODE, MATERIAL FOR ELECTROCHEMICAL DEVICE ELECTRODE, ELECTROCHEMICAL DEVICE ELECTRODE, AND ELECTROCHEMICAL DEVICE - Composite particles for electrochemical device electrode containing an electrode active material and a particle-shaped binder, wherein said binder includes a copolymer which contains a nitrile group-containing monomer unit, a monomer unit which has an acidic functional group, and a monomer unit which contains a C | 06-26-2014 |
20140186700 | ADVANCED, HIGH POWER AND ENERGY BATTERY ELECTRODE MANUFACTURED BY CO-EXTRUSION PRINTING - A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of materials, one of the materials forming a pore channel. | 07-03-2014 |
20140186701 | Composite Anode Of Lithium-ion Batteries - The present invention provides a composite anode for a battery comprising a copper current collector working electrode, at least one anode material comprising at least one of a carbon, a silicon, a conductive agent, and combinations thereof, wherein at least one anode material is deposited on a surface of the copper current collector working electrode to form the composite anode for a battery. An electrophoretic method for making this anode is provided. A lithium-ion battery having the composite anode is disclosed. | 07-03-2014 |
20140186702 | LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery ( | 07-03-2014 |
20140193708 | POSITIVE ACTIVE MATERIAL COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ELECTRODE PREPARED FROM COMPOSITION, AND RECHARGEABLE LITHIUM BATTERY INCLUDING POSITIVE ELECTRODE - In an aspect, a positive active material composition for a rechargeable lithium battery including a positive active material coated with a vanadium pentaoxide (V | 07-10-2014 |
20140193709 | BINDER FOR ELECTRODE OF ELECTROCHEMICAL ELEMENT, COMPOSITION FOR ELECTRODE OF ELECTROCHEMICAL ELEMENT, ELECTRODE OF ELECTROCHEMICAL ELEMENT AND ELECTROCHEMICAL ELEMENT - The invention relates to a binder for an electrode of an electrochemical element. The binder is a polymer having an N-vinyl formamide unit, which suppresses the decline of battery performances due to deterioration of binding property and increase of internal resistance of the battery and improves the battery performance. | 07-10-2014 |
20140193710 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide a non-aqueous electrolyte secondary battery less subject to impact by vibration, impact, etc., and has stable characteristics. The non-aqueous electrolyte secondary battery includes: a positive electrode part in which a positive electrode active material layer is formed on a positive collector; a positive electrode which is provided with a positive electrode lead tab and which is integrally formed with the positive collector so as to be connected to a periphery of the positive electrode part through a curved portion continuing therefrom; a negative electrode part in which a negative electrode active material layer is formed on a negative collector; a negative electrode which is provided with a negative electrode lead tab and which is integrally formed with the negative collector so as to be connected to a periphery of the negative electrode part through a curved portion continuing therefrom; and a separator which is interposed between the positive and negative electrodes. A positive electrode active material layer is formed at least on both sides of the positive electrode lead tab, and a projection portion obtained by vertically projecting the positive electrode part on the negative electrode part exists inward an outline of the negative electrode active material layer. | 07-10-2014 |
20140199587 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - In an aspect, a positive electrode for a lithium rechargeable battery including a current collector; a positive active material layer disposed on the current collector, wherein the positive active material layer includes a positive active material, active carbon, and an additive. | 07-17-2014 |
20140199588 | ELECTROLYTIC COPPER FOIL, METHOD OF PRODUCING ELECTROLYTIC COPPER FOIL, LITHIUM ION SECONDARY CELL USING ELECTROLYTIC COPPER FOIL AS COLLECTOR - The present invention provides an electrodeposited copper foil having a tensile strength of at least 300 MPa and elongation rate of at least 3.0% after heat treatment at 350° C. for 1 hour and provides a copper foil which prevents the breakage of a current collector (copper foil) while maintaining adhesiveness between the current collector (copper foil) and the active material in response to substantial expansion and contraction of a Si or Sn alloy-based active material. The foil is an electrodeposited copper foil having a roughened surface, the tensile strength of the copper foil being at least 300 MPa after heating at 350° C. for 1 hour, the elongation rate being at least 3.0% after heating at 350° C. for 1 hour, and respective surface area ratios (actual surface area/geometric surface area) of both sides of the copper foil (the side that is roughened and the side that is not roughened) being from 1.6 to 2.2. The electrodeposited copper foil is produced with an electrolyte in which from 3 to 20 ppm of organic additives of one or more compounds selected from compounds having a structure with an SH group binding to a heterocycle containing N or thiourea-based compounds is added to a copper sulfate-based electrolyte, and then from 0 to 12 ppm of hydroxyethyl cellulose or a low-molecular weight glue, and from 10 to 80 ppm of chlorine ions are added thereto. | 07-17-2014 |
20140199589 | ELECTRIC STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - Provided is an electric storage device including: a first electrode plate, a second electrode plate having a polarity opposite to that of the first electrode plate, and a separator interposed between the first electrode plate and the second electrode plate, wherein the first electrode plate includes a current collector, a conductive layer laminated onto the current collector, and a mixture layer laminated onto the conductive layer, the mixture layer contains a binder and primary particles of an active material as its constituents, and the primary particles as a constituent of the mixture layer are partially retained in the conductive layer. | 07-17-2014 |
20140199590 | LITHIUM SECONDARY BATTERY - A lithium secondary battery exhibiting low temperature output characteristics is provided. The lithium secondary battery of the present invention includes a current collector | 07-17-2014 |
20140205898 | COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY INCLUDING THE COMPOSITE CATHODE ACTIVE MATERIAL, AND PREPARATION METHOD THEREOF - In an aspect, a composite cathode active material a cathode and a lithium battery including the composite cathode active material, and a method of preparing the composite cathode active material is disclosed. | 07-24-2014 |
20140205899 | BINDER FOR RECHARGEABLE LITHIUM BATTERY, ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING ELECTRODE - A binder for a rechargeable lithium battery includes a copolymer having a weight average molecular weight of about 10,000 to about 500,000 and including a repeating unit represented by Chemical Formula X and a repeating unit represented by Chemical Formula Y-1: | 07-24-2014 |
20140205900 | ALUMINUM ALLOY FOIL FOR ELECTRODE COLLECTOR AND PRODUCTION METHOD THEREFOR - An object of the present invention is to provide an aluminum alloy foil for an electrode current collector, the foil having a high strength and high strength after a drying process. The aluminum alloy foil can be manufactured at low cost. Disclosed is an aluminum alloy foil for electrode current collector, including 0.03 to 1.0% of Fe, 0.01 to 0.2% of Si, 0.0001 to 0.2% of Cu, 0.005 to 0.03% of Ti, with the rest being Al and unavoidable impurities. The aluminum alloy foil has Fe solid solution content of 200 ppm or higher, and an intermetallic compound having a maximum diameter length of 0.1 to 1.0 μm in an number density of 2.0×10 | 07-24-2014 |
20140205901 | LITHIUM RECHARGEABLE BATTERY - The lithium rechargeable battery of the present invention is provided with a current collector and an active material layer containing active material particles | 07-24-2014 |
20140212748 | ADVANCED SEPARATORS BASED ON AROMATIC POLYMER FOR HIGH ENERGY DENSITY LITHIUM BATTERIES - A process includes casting a solution including poly(phenylene oxide), inorganic nanoparticles, a solvent, and a non-solvent on a substrate; and removing the solvent to form a porous film; wherein: the porous film is configured for use as a porous separator for a lithium ion battery. | 07-31-2014 |
20140212749 | Method for Preparing Positive Electrode Active Material for Lithium Secondary Battery, Positive Electrode Active Material for Lithium Secondary Battery, and Lithium Secondary Battery Including Same - Disclosed are a method for preparing a positive electrode active material for a lithium secondary battery and a positive electrode active material for a lithium secondary battery, the method including: preparing a mixture of a precursor represented by Chemical Formula 1 below, a lithium composite oxide represented by Chemical Formula 2 below and capable of intercalating/deintercalating lithium ions, and a lithium feed material; and firing the prepared mixture: | 07-31-2014 |
20140212750 | LITHIUM SECONDARY BATTERY COMPRISING SPHERICAL GRAPHITE AS ANODE ACTIVE MATERIAL - Disclosed is an anode active material for lithium secondary batteries that includes natural graphite particles consisting of spherical particles of agglomerated graphite sheets, outer surfaces of which are not coated with a carbon-based material, wherein the surfaces of the particles have a degree of amorphization of at least 0.3 within a range within which an R value [R=I | 07-31-2014 |
20140212751 | ELECTRODE ASSEMBLY, FABRICATING METHOD OF THE ELECTRODE ASSEMBLY AND ELECTROCHEMICAL CELL CONTAINING THE ELECTRODE ASSEMBLY - A fabricating method of a unit structure for accomplishing an electrode assembly formed by a stacking method, and an electrochemical cell including the same are disclosed. The fabricating method of the electrode assembly is characterized with fabricating the unit structure by conducting a first process of laminating and forming a bicell having a first electrode/separator/second electrode/separator/first electrode structure, conducting a second process of laminating a first separator on one of the first electrode among two of the first electrodes, and conducting a third process of laminating second separator/second electrode one by one on the other first electrode among the two of the first electrodes. | 07-31-2014 |
20140220433 | LAYERED IRON ELECTRODE - The present invention provides one with a novel coated iron electrode. Provided is an iron based electrode comprising a single layer conductive substrate coated on at least one side with a multilayered coating, with each coating layer comprising an iron active material, and preferably a binder. The coating is comprised of at least two layers. Each layer has at least a different porosity or composition than an adjacent layer. The iron based electrode is useful in alkaline rechargeable batteries, particularly as a negative electrode in a Ni—Fe battery. | 08-07-2014 |
20140220434 | NICKEL IRON BATTERY EMPLOYING A COATED IRON ELECTRODE - Provided is a Ni—Fe battery comprising a high quality, high performance iron electrode. In one embodiment the iron electrode comprises a polyvinyl alcohol binder. The iron electrode of the Ni—Fe battery comprises a single conductive substrate coated on one or both sides with an iron active material. | 08-07-2014 |
20140220435 | CONTINUOUS COATED IRON ELECTRODE - Provided is a high quality and high performance iron electrode, which is prepared by a continuous process. The process comprises preparing a formulation comprising an iron active material and a binder, and coating a continuous substrate material on at least one side with the formulation. The coated continuous substrate material is dried, compacted and blanked. A tab is then attached to the electrode. In one embodiment, the iron electrode comprises a PVA binder. | 08-07-2014 |
20140220436 | METHOD FOR PRODUCING ELECTRODE ASSEMBLY, ELECTRODE ASSEMBLY, AND LITHIUM BATTERY - A method for producing an electrode assembly, including a porous active material molded body, a solid electrolyte layer covering the surface of the active material molded body including the inside of each pore of the active material molded body, and a current collector in contact with the active material molded body exposed from the solid electrolyte layer, includes obtaining the active material molded body by heating a porous body formed using an active material at a temperature of 850° C. or higher and lower than the melting point of the active material, and forming the solid electrolyte layer by applying a liquid containing a constituent material of an inorganic solid electrolyte to the surface of the active material molded body including the inside of each pore of the active material molded body in a structure body including the active material molded body, and then performing a heat treatment. | 08-07-2014 |
20140220437 | NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE - A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li | 08-07-2014 |
20140234707 | CARBON-SULFUR COMPOSITES ENCAPSULATED WITH POLYELECTROLYTE MULTILAYER MEMBRANES - A carbon-sulfur composite coated with a membrane containing alternating layers of oppositely charged polyelectrolytes is provided. A cathode containing the coated carbon-sulfur composite and a battery constructed with the cathode are also provided. | 08-21-2014 |
20140234708 | ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - In an aspect, an electrode for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same are provided. | 08-21-2014 |
20140242459 | ELECTRODE FOR BATTERY, BATTERY, AND METHOD OF AND APPARATUS FOR MANUFACTURING ELECTRODE FOR BATTERY - An electrode | 08-28-2014 |
20140242460 | ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES AND METHOD FOR MANUFACTURING SAME - Disclosed are an anode active material for lithium secondary batteries and a method for manufacturing same, the anode active material comprising: a core part including a carbon-silicon complex and having a cavity therein; and a coated layer which is formed on the surface of the core part and includes a phosphor-based alloy. | 08-28-2014 |
20140248532 | Composite current collector for an aqueous electrochemical cell comprising a non-metallic substrate - Composite current collectors containing coatings of metals, alloys or compounds, selected from the group of Zn, Cd, Hg, Ga, In, Tl, Sn, Pb, As, Sb, Bi and Se on non-metallic, non-conductive or poorly-conductive substrates are disclosed. The composite current collectors can be used in electrochemical cells particularly sealed cells requiring a long storage life. Selected metals, metal alloys or metal compounds are applied to polymer or ceramic substrates by vacuum deposition techniques, extrusion, conductive paints (dispersed as particles in a suitable paint), electroless deposition, cementation; or after suitable metallization by galvanic means (electrodeposition or electrophoresis). Metal compound coatings are reduced to their respective metals by chemical or galvanic means. The current collectors described are particular suitable for use in sealed primary or rechargeable galvanic cells containing mercury-fee and lead-free alkaline zinc electrodes. | 09-04-2014 |
20140248533 | ENERGY STORAGE DEVICES CONTAINING A CARBON NANOTUBE AEROGEL AND METHODS FOR MAKING THE SAME - Conventional rechargeable batteries, such as lithium-ion batteries, are somewhat limited in their energy storage density. Sulfur-based batteries can provide improved energy storage density, but their use can be hampered by sulfur's low electrical conductivity. Energy storage devices, particularly batteries, can have a first electrode that includes a carbon nanotube aerogel, and an electroactive material containing sulfur that is incorporated in the carbon nanotube aerogel. Methods for forming an energy storage device can include incorporating an electroactive material containing sulfur in a carbon nanotube aerogel, compressing the carbon nanotube aerogel to form a compressed carbon nanotube aerogel, and disposing a first electrode containing the compressed carbon nanotube aerogel and the electroactive material in an electrolyte with a second electrode and a plurality of lithium ions, such that a separator material permeable to the lithium ions is between the first electrode and the second electrode. | 09-04-2014 |
20140255776 | METHOD FOR MANUFACTURING ELECTRODE, ELECTRODE MANUFACTURED ACCORDING TO THE METHOD, SUPERCAPACITOR INCLUDING THE ELECTRODE, AND RECHARGABLE LITHIUM BATTERY INCLUDING THE ELECTRODE - Disclosed are a method for manufacturing an electrode including mixing at least two electrode materials selected from a carbon material, a metal oxide precursor, and a conductive polymer with a solvent to prepare a mixture, coating the mixture on a current collector, and radiating IPL (intense pulsed light) on the mixture coated on the current collector, the electrode manufactured according to the method, and a supercapacitor and rechargeable lithium battery including the electrode. | 09-11-2014 |
20140255777 | BINDER COMPOSITION FOR ELECTRODE, ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - A water-soluble binder composition including a first polymer having one or more hydroxyl groups in its repeating unit, and a polybasic acid compound. The binder composition is for an electrode and is environmentally friendly, has improved cycle life characteristics, and has improved adhesion strength of an active material and improved adhesion strength of the active material to a current collector. An electrode including the binder composition and a secondary battery including the electrode, are also provided. | 09-11-2014 |
20140255778 | CATHODE INCLUDING INSULATION LAYER ON CATHODE TAB AND SECONDARY BATTERY INCLUDING THE CATHODE - Provided is a cathode including a cathode current collector, a cathode tab protruding from the cathode current collector, and an insulation layer coated with an insulating material on the cathode tab, and a secondary battery including the cathode. Since the cathode of the present invention includes an insulation layer on a cathode tab, the present invention may prevent an internal short circuit which may occur due to cell deformation or sharp edges of electrodes, which are formed during cutting of the electrodes in a preparation process of the battery, when the electrodes are stacked, or may prevent a physical short circuit between the cathode and the anode due to shrinkage of a separator in a high-temperature atmosphere. In a case where the cathode is used in a lithium secondary battery, safety and reliability in battery performance may be significantly improved. | 09-11-2014 |
20140255779 | SECONDARY BATTERY - Provided is a secondary battery capable of preventing metal-plating and curling, the secondary battery including: at least one anode including an anode current collector and an anode active material layer coated on the anode current collector; at least one cathode including a cathode current collector, a cathode active material layer coated on one surface of the cathode current collector, which faces the anode, and an outermost coating layer coated on the other surface of the cathode current collector, which does not face the anode, the outermost coating layer being formed by coating an anode active material, an inorganic particle, or a mixture thereof; and at least one separator positioned between the cathode and the anode. | 09-11-2014 |
20140272558 | ELECTRODE FOR A LITHIUM-BASED SECONDARY ELECTROCHEMICAL DEVICE AND METHOD OF FORMING SAME - An electrode for a lithium-based secondary electrochemical device includes a current collector. The current collector includes a substrate having a surface defining a plurality of pores therein, and a lithium powder disposed within each of the plurality of pores. In addition, the electrode includes a cured film disposed on the current collector and formed from an electrically-conductive material. A lithium-based secondary electrochemical device including the electrode, and a method of forming the electrode are also disclosed. | 09-18-2014 |
20140272559 | ELECTROCHEMICAL CELL INCLUDING A FOLDED ELECTRODE, COMPONENTS THEREOF, BATTERY INCLUDING THE ELECTROCHEMICAL CELL, AND METHOD OF FORMING SAME - An electrochemical cell including an integrated electrode structure including a separator and an electrode active material, components thereof, a battery including the electrochemical cell, and methods of forming the components, electrochemical cell, and battery are disclosed. The integrated electrode structure includes a separator and at least on electrode active material. | 09-18-2014 |
20140272560 | Method to Improve LiCoO2 Morphology in Thin Film Batteries - A method for improving the lithium cobalt oxide (LiCoO2) film (such as films in thin film batteries) morphology includes using oxygen (O2) and argon (Ar) gases during sputtering deposition of the LiCoO2 film. This may allow for the manufacturing of thicker LiCoO2 films. Such a method may also significantly reduce or eliminate cracking and obvious columnar structures within the resulting LiCoO2 film layer. Sputtering using a mixture of O2 and Ar also may produce a LiCoO2 film layer that requires lower annealing temperatures to reach good utilization and has higher lithium diffusion rates. | 09-18-2014 |
20140272561 | Alternative Current Collectors for Thin Film Batteries and Method for Making the Same - A thin film battery has one or more current collectors with a substantially mesh configuration. The mesh current collector may include a network or web of thin strands of current collector material. The thin strands may overlap each other and/or may be arranged to define a plurality of individual cells within the mesh current collector. The strands of the mesh current collector may also be arranged to have a grid-like configuration. Additionally, in some configurations, the anode or cathode may fill the cells within the current collector layer to optimize the amount of active material within the battery. | 09-18-2014 |
20140272562 | POSITIVE ELECTRODE - In general, according to one embodiment, a positive electrode is provided. The positive electrode includes a positive electrode current collector and a positive-electrode-mixture layer formed on the positive electrode current collector. The positive-electrode-mixture layer includes first pores and second pores. Pore size diameters D | 09-18-2014 |
20140272563 | HIGH VOLTAGE, HIGH VOLUMETRIC ENERGY DENSITY LI-ION BATTERY USING ADVANCED CATHODE MATERIALS - The disclosed embodiments provide a battery cell. The battery cell includes an anode containing an anode current collector and an anode active material disposed over the anode current collector. The battery cell also includes a cathode containing a cathode current collector and a cathode active material disposed over the cathode current collector. The cathode active material has a composition represented by xLi | 09-18-2014 |
20140272564 | IRON, FLUORINE, SULFUR COMPOUNDS FOR BATTERY CELL CATHODES - Provided herein are energy storage device cathodes with high capacity electrochemically active material including compounds that include iron, fluorine, sulfur, and optionally oxygen. Batteries with active materials including a compound of the formula FeF | 09-18-2014 |
20140272565 | PROTECTED ELECTRODE STRUCTURES - An electrode structure and its method of manufacture are disclosed. The disclosed electrode structures may be manufactured by depositing a first release layer on a first carrier substrate. A first protective layer may be deposited on a surface of the first release layer and a first electroactive material layer may then be deposited on the first protective layer. | 09-18-2014 |
20140272566 | WELDABILITY OF ALUMINUM ALLOYS - A method is provided for modifying a surface of a first, relatively difficult-to-weld metal substrate in preparation for a subsequent joining method by applying a thin layer of a second, relatively easy-to-weld metal to the surface of the first metal substrate. | 09-18-2014 |
20140287305 | ION CONDUCTING BATTERIES WITH SOLID STATE ELECTROLYTE MATERIALS - Solid-state, ion-conducting batteries with an ion-conducting, solid-state electrolyte. The solid-state electrolyte has at least one porous region (e.g., porous layer) and a dense region (e.g., dense layer). The batteries are, for example, lithium-ion, sodium-ion, or magnesium-ion conducting solid-state batteries. The ion-conducting, solid-state electrolyte is, for example, a lithium-garnet material. | 09-25-2014 |
20140295263 | SECONDARY BATTERY - A secondary battery includes: a cathode and an anode that are opposed to each other with a separator in between; and an electrolytic solution, wherein the cathode includes a cathode current collector and a cathode active material layer provided between the cathode current collector and the separator, the anode includes an anode current collector and an anode active material layer provided between the anode current collector and the separator, one or more of the cathode, the anode, and the separator includes a plurality of thermally-conductive particles in a region between the cathode current collector and the anode current collector, and heat conductivity of the thermally-conductive particles is larger in a second direction that intersects with a first direction, in which the cathode and the anode are opposed to each other, than in the first direction. | 10-02-2014 |
20140295264 | METHOD FOR FORMING PATTERN, STRUCTURAL BODY, METHOD FOR PRODUCING COMB-SHAPED ELECTRODE, AND SECONDARY CELL - A method for forming a pattern, a structural body, a method for producing a comb-shaped electrode, and a secondary cell. The pattern forming method, in which n patterns (n≧2) are formed on a support, includes forming a first resist layer on the support surface; and repeating: forming a guide hole through a kth resist layer by exposure and development, filling a kth pattern material into the guide hole by a screen printing process, removing the kth resist layer, and forming a (k+1)th resist layer on the support and all pattern materials, regarding kth (k=1 to n−1) pattern material and resist layer in order of k=1 to n−1; forming a guide hole and nth pattern material filling similarly, and removing the nth resist layer. | 10-02-2014 |
20140295265 | Lithium-rich electrode sheet of lithium-ion battery and preparation method thereof - The present disclosure provides a lithium-rich electrode plate of a lithium-ion battery and a preparation method thereof. The lithium-rich electrode plate comprises a collector; a film containing an active material and forming on the collector, and forming an elementary electrode plate together with the collector; and a porous lithium sheet covering on the film, wherein a resulting capacity of the porous lithium sheet matches a planned lithium-supplemental capacity to an anode of a lithium-ion battery. The present disclosure can accurately control lithium-supplemental quantity to the anode, improve lithium-supplemental uniformity, improve the first coulombic efficiency, energy density, and electrochemical performance of the battery, and decrease deformation of the cell, furthermore the method can be performed simply and the cost thereof is low. | 10-02-2014 |
20140295266 | ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY HAVING THE SAME - An electrode assembly and a secondary battery having the same are disclosed. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate includes a positive electrode active material and a positive electrode tab. The negative electrode plate includes a negative electrode active material and a negative electrode tab. The separator is disposed between the positive electrode plate and the negative electrode plate. A negative electrode non-coating portion is disposed on the negative electrode plate corresponding to a position of the positive electrode tab. A positive electrode non-coating portion is disposed on the positive electrode plate corresponding to a position of the negative electrode tab. | 10-02-2014 |
20140302390 | ELECTRODE BODY - An electrode body includes a laminated body and an insulating fixing member. The laminated body includes a positive-electrode active material layer, a negative-electrode active material layer, a negative-electrode current collector layer, and a solid electrolyte layer. The negative-electrode current collector layer includes a current-collector extension portion that extends outward further than the negative-electrode active material layer. The solid electrolyte layer includes an electrolyte extension portion that integrally covers an end surface of the negative-electrode active material layer and a base end portion of the current-collector extension portion. The insulating fixing member covers at least front and back surfaces of a distal end portion exposed from the second electrolyte extension portion. | 10-09-2014 |
20140308580 | TRANSPARENT GAS BARRIER FILM, METHOD FOR PRODUCING TRANSPARENT GAS BARRIER FILM, ORGANIC EL ELEMENT, SOLAR BATTERY, AND THIN FILM BATTERY - A transparent gas barrier film that has excellent gas barrier properties and includes a transparent gas barrier layer having a very low internal stress, and a method for producing the same. The transparent gas barrier film according to the present invention includes: a resin substrate; and a transparent gas barrier layer formed over the resin substrate. The transparent gas barrier layer includes at least one kind selected from the group consisting of metals and metalloids. The transparent gas barrier layer includes a plurality of layers each having a density that changes continuously from high density to low density or from low density to high density and then cycles alternatively from low density to high density or high density to low density, respectively, once or two or more times. | 10-16-2014 |
20140329142 | Lead-Carbon Battery Current Collector Shielding with Ported Packets - Provided is an activated carbon lead energy storage/battery containing an improved negative activated electrode packet exhibiting substantially reduced resistance with ported paraffin impregnated expanded graphite foil shielding overlying a cutaway notch in the underlying current collector to permit sulfuric acid electrolyte infiltration. | 11-06-2014 |
20140349179 | SECONDARY BATTERY - A secondary battery includes a first electrode plate, a second electrode plate and a separator. The first electrode plate has a plurality of first active material coating portions formed by intermittently coating a first active material on a base material, and a first non-coating portion at which the first active material is not coated on the base material. The second electrode plate has a second active material coating portion formed by coating a second active material on a base material, and a second non-coating portion at which the second active material is not coated on the base material. The separator is interposed between the first and second electrode plates. | 11-27-2014 |
20140349180 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, NEGATIVE ELECTRODE INCLUDING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING NEGATIVE ELECTRODE - Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material and graphite, wherein an average particle diameter (D50) of the graphite may range from about 5 μm to about 15 μm, and a Raman peak intensity ratio (I | 11-27-2014 |
20140349181 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING CATHODE AND ANODE HAVING DIFFERENT SHAPES - Disclosed is an electrode assembly including a plurality of alternately arranged cathode and anode plates, a separator interposed between the cathode plate and the anode plate, a plurality of cathode tabs respectively formed on the cathode plates, a plurality of anode tabs respectively formed on the anode plates, a cathode lead coupled to the cathode tabs, and an anode lead coupled to the anode tabs, wherein i) the cathode and anode tabs have different shapes and widths of the cathode tabs and the anode tabs are equal to 2 to 100% the length of electrode surfaces with the tabs formed thereon, or ii) the cathode tabs and the anode tabs are asymmetrically arranged with respect to electrode surfaces with the cathode and anode tabs formed thereon and widths of the cathode tabs and the anode tabs are equal to 5 to 45% the length of the electrode surfaces. | 11-27-2014 |
20140356703 | ELECTROCHEMICAL CELL COMPRISING A NANOWEB COMPRISING NANOFIBERS OF A CROSS-LINKED POLYIMIDE - The invention provides an electrochemical cell comprising an electrolyte and a multi-layer article, the multi-layer article comprising a first electrode, a second electrode in ionically conductive contact with the first electrode, and a separator disposed between and in contact the first electrode and the second electrode. The separator comprises a nanoweb, the nanoweb comprising nanofibers of a cross-linked polyimide, wherein the cross-linked polyimide is derived from an aromatic dianhydride, an aromatic diamine, and a reactive end-capper. The reactive end-capper is at least one of a functionalized anhydride or a functionalized amine, functionalized with a reactive functionality selected from the group consisting of acetylene, vinyl, epoxide, nitrile, and ester. The electrochemical cell also comprises a first current collector in electrically conductive contact with the first electrode and a second current collector in electrically conductive contact with the second electrode. | 12-04-2014 |
20140356704 | ELECTRODE ASSEMBLY INCLUDING CATHODE AND ANODE HAVING DIFFERENT WELDING PORTION SHAPES AND SECONDARY BATTERY INCLUDING THE SAME - Disclosed is an electrode assembly including a plurality of alternately arranged cathode and anode plates, a separator interposed between the cathode plate and the anode plate, a plurality of cathode tabs respectively formed on the cathode plates, a plurality of anode tabs respectively formed on the anode plates, a cathode lead coupled to the cathode tabs, and an anode lead coupled to the anode tabs, wherein the welding portions in which the cathode and anode tabs are respectively coupled to the cathode and anode leads have different shapes, or kinds of the cathode and anode tabs are identical and kinds of the cathode and anode leads are different. | 12-04-2014 |
20140370377 | Treated Current Collector Foil - In at least one embodiment, a battery is provided comprising an electron beam-treated current collector having an increased surface energy compared to an untreated current collector and an electrode disposed on a treated surface of the current collector. The electrode may include a water-soluble binder uniformly coating a surface of the current collector and the treated current collector may have a contact angle with the water-soluble binder of 70 degrees or less. The electron beam treatment may be applied to a moving current collector foil as part of a battery production process, prior to application of an electrode slurry. | 12-18-2014 |
20140377645 | Electrode Assembly for Secondary Battery - Provided is an electrode assembly for a secondary battery, including: one or more first electrode plates: one or more second electrode plates stacked alternately with the first electrode plates; first electrode taps extended from the first electrode plates, respectively; second electrode taps extended from the second electrode plates, respectively; a separator disposed between the first electrode plates and the second electrode plates; and a spacer part formed on lateral surfaces formed in a stacking direction of edges of the first electrode plates and the second electrode plates, so that, by including the spacer part, internal short circuits can be prevented and insertability into a pouch type battery case can be improved, thereby improving stability, reliability, and productivity thereof. | 12-25-2014 |
20150010813 | CURVED BATTERY AND MANUFACTURING METHOD THEREOF - A curved battery and manufacturing method thereof, includes the following steps: electroplating an electrode sheet, rolling said electrode sheet along its long side, first sealing, heating, pouring in electrolyte fluid, charging, vacuuming, second sealing, and shaping. Wherein, the electrode sheet is of a long strip shape, with its outside wrapped with separation film, to separate the positive electrode and negative electrode. While perform rolling, it is performed along its long side, to remove the stress that may occur after the product is produced. Then, sealing is performed by using films made of water resistant and heat resistant material for sealing at least three side edges. Pour in electrolyte fluid of LiPF | 01-08-2015 |
20150017523 | ELECTRODE MANUFACTURING METHOD - To provide an electrode ensuring excellent characteristics even when the electrode formed on a foil-like collector is compressed under a comparatively low temperature condition. | 01-15-2015 |
20150030920 | ELECTRODE ASSEMBLY, AND RECHARGEABLE BATTERY - An electrode assembly includes an electrode stack that includes a positive electrode, a negative electrode, and a separator, the separator being interposed between the positive electrode and the negative electrode, a positive electrode tab projecting from an edge of the electrode stack, and a negative electrode tab projecting from an edge of the electrode stack. The electrode stack may have a height direction, a width direction, and a thickness direction, the thickness direction being substantially perpendicular to a plane that includes the height and width directions, the electrode stack having a first thickness in the thickness direction at a first location corresponding to at least one of the positive and negative electrode tabs, the electrode stack having a second thickness in the thickness direction at a second location peripheral to the first location, the first thickness being greater than the second thickness. | 01-29-2015 |
20150044555 | RECHARGEABLE BATTERY - A method of manufacturing a rechargeable battery includes continuously supplying a first electrode plate, the first electrode plate including a plurality of first active material portions with gaps therebetween on a first current collector, continuously supplying a first separator and a second separator to respective surfaces of the first electrode plate, bending the first electrode plate with the first and second separators to form a zigzag structure with bent portions, supplying a second electrode plate to an inside of each bent portion of the zigzag structure, the second electrode plate including a second active material portion on a second current collector, aligning and stacking the first electrode plate, the first separator, the second separator, and the second electrode plate, and taping the aligned and stacked first electrode plate, first separator, second separator, and second electrode plate at an outermost side thereof. | 02-12-2015 |
20150050553 | CELL - The present disclosure provides a cell, which has a stacked body composed of a first electrode plate, a second electrode plate and separators, the stacked body has a starting end and a terminal end, the first electrode plate is provided with a first electrode tab, the second electrode plate is provided with a second electrode tab, the cell has a main body portion formed by winding a part of the stacked body from the starting end of the stacked body and a folded portion formed by folding the rest of the stacked body from a distal end of the main body portion over the main body portion and covering a part of the main body portion The cell can be formed as a step-shaped configuration by directly and sufficiently utilizing winding without cutting or treating the electrode plate, the manufacturing process is simple. | 02-19-2015 |
20150056506 | CONNECTING CONTACT LEADS TO LITHIUMBASED ELECTRODES - There is disclosed a method of connecting a lithium electrode to a contact lead in a rechargeable battery. The electrode comprises a sheet or foil of lithium or lithium alloy with a tab protruding from an edge of the sheet or foil. The contact lead comprises an electrically conductive lead with an end portion made of a second metal that does not alloy with lithium and has a plurality of through holes. The end portion of the contact lead and the tab of the electrode are positioned so that there is substantial overlap between the end portion and the tab. The metal of the tab is then caused, for example by pressing and welding, to penetrate through the through holes of the end portion so as to join the electrode to the contact lead. A combination electrode/contact lead assembly made by this method is also disclosed. | 02-26-2015 |
20150086864 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME - An electrode assembly according to an embodiment of the present invention includes a first electrode plate having a fist electrode tab at an end of one side thereof, a second electrode plate having a second electrode tab, which is formed in a same direction as a longitudinal direction of the first electrode tab and is formed at a position not overlapping the first electrode tab, and a protrusion which is formed at a position overlapping the fist electrode tab, and a separator insulating the first electrode plate and the second electrode plate. Therefore, the electrode assembly according to the embodiment of the present invention and the secondary battery including the same may improve the stability of the secondary battery by preventing lithium ion accumulation in a separator. | 03-26-2015 |
20150086865 | POSITIVE ELECTRODE FOR SECONDARY BATTERY, SECONDARY BATTERY, AND METHODS FOR MANUFACTURING THE SAME - The present invention provides a positive electrode for a secondary battery that can suppress a phenomenon in which, after the solid electrolyte interface is formed once, when a damaged portion where a solid electrolyte interface is partially broken happens to arise in the solid electrolyte interface, the continued deterioration in the performance of charge-discharge cycle of the secondary battery is induced thereby, and a secondary battery using said positive electrode for a secondary battery. The positive electrode for a secondary battery according to the present invention comprises water that is chemically adsorbed beforehand in the positive electrode, wherein the concentration of the chemically adsorbed water, which is comprised in the positive electrode beforehand, is set in the range of 0.03% by mass to 0.15% by mass based on the positive electrode. | 03-26-2015 |
20150086866 | FLOW CONTROLLER OF DRYING OVEN WITH AUTOMATIC AIR CHARGE FOR MANUFACTURING SECONDARY BATTERY - Disclosed herein is an intake air flow control apparatus of an electrode drying oven for manufacturing secondary batteries configured to coat a current collector with an electrode slurry including a solvent and to dry the solvent, the intake air flow control apparatus of the electrode drying oven including at least one electrode drying oven having an intake air duct for supplying external air and an exhaust air duct for discharging a mixed gas containing air and the solvent, a sensor mounted in the exhaust air duct for measuring a concentration of the solvent in the exhaust gas, and a controller for adjusting a supply quantity of air and/or a discharge quantity of gas based on information regarding the concentration of the solvent in the exhaust gas received from the sensor. | 03-26-2015 |
20150086867 | BATTERY TERMINAL, METHOD FOR MANUFACTURING BATTERY TERMINAL, AND BATTERY - A battery terminal includes an overlay clad plate material including at least a first metal layer made of Al or Al alloy and a second metal layer made of Cu or Cu alloy, formed by bonding at least the first metal layer and the second metal layer to each other in the thickness direction. Either the first metal layer or the second metal layer of the clad plate material is partially removed to form an exposure surface on which either the second metal layer or the first metal layer is exposed in the clad plate material. | 03-26-2015 |
20150093637 | SECONDARY BATTERY - According to one embodiment, there is provided a secondary battery. This secondary battery includes an electrode and an organic-fiber layer. The electrode includes a current collector including an edge part, an active material-containing layer including an end part supported on the edge part, and a current-collecting tab including a surface a part of which is adjacent to the edge part. The organic-fiber layer is bonded with the end part of the active material-containing layer with maximum thickness and with the part of the surface of the current-collecting tab. | 04-02-2015 |
20150303437 | CONNECTION POLE FOR AN ACCUMULATOR, POLE SHAFT OF AN ACCUMULATOR, AND ACCUMULATOR - A connection pole for an accumulator, wherein the connection pole includes an inner hollow region configured to receive a pole shaft of the accumulator. The connection pole includes ribs on its inner wall in the inner hollow region, wherein the ribs run in the longitudinal direction of the connection pole and one or more or all of the ribs are integrally formed with the connection pole from the material of the connection pole and protrude from the inner side of the connection pole such that the ribs form a gap between the pole shaft and the inner surface of the connection pole. | 10-22-2015 |
20150380716 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a negative electrode in which a negative electrode active material layer is formed on a negative electrode collector, and a positive electrode laminated on the negative electrode through a separator, in which a positive electrode active material layer is formed on a positive electrode collector. The positive electrode active material layer on a surface of a positive electrode tab drawn from the positive electrode collector has a region which extends in a drawing direction of the positive electrode tab, exceeding a leading end line of a vertically projected negative electrode active material layer opposed to the positive electrode active material layer and in which an existing amount of the positive electrode active material layer is reduced toward its leading end portion. | 12-31-2015 |
20150380717 | ELECTRODE ASSEMBLY HAVING TAB-LEAD JOINT PORTION OF MINIMIZED RESISTANCE DIFFERENCE BETWEEN ELECTRODES AND ELECTROCHEMICAL CELL CONTAINING THE SAME - Disclosed herein is a stacking or stacking/folding type electrode assembly of a cathode/separator/anode structure, wherein the electrode assembly is constructed in a structure in which tabs (electrode tabs), having no active material applied thereto, protrude from electrode plates constituting the electrode assembly, the electrode tabs are electrically connected to an electrode lead, and the pluralities of electrode tabs are joined to the top and the bottom of the electrode lead at an electrode lead-electrode tabs joint portion such that the resistance difference between electrodes at the electrode lead-electrode tabs joint portion is minimized. Also disclosed is an electrochemical cell including the electrode assembly. | 12-31-2015 |
20160036037 | BATTERIES PREPARED BY SPINNING - A method of forming a lithium-ion battery by spinning and a battery formed thereby are disclosed. The spinning may include electrospinning A first anode layer may be spun, followed by a first separator layer, a first cathode layer, and a second separator layer. Each layer may be spun directly onto the previously spun layer to provide a battery that does not include metal current collectors. The anode and/or cathode layers may include polyacrylonitrile (PAN) fibers. To render the anode and cathode layers conductive, they may be carbonized using a heat source (e.g., a laser). The disclosed method may allow for the incorporation of high capacity materials, such as sulfur and/or silicon, in the electrode active materials. | 02-04-2016 |
20160049633 | BATTERY - A battery including an electrode assembly having an electrode tab; an insulating spacer having a welding groove at which the electrode tab protruding from the electrode assembly is assembled to the insulating spacer; and an electrode lead to which the electrode tab is welded. In the insulating spacer, the welding groove for exposing the electrode tab is formed at a location where the electrode tab is assembled to the insulating spacer. | 02-18-2016 |
20160049662 | NON-WOVEN FABRIC CURRENT COLLECTOR, METHOD OF FABRICATING BATTERY USING THE SAME, AND SYSTEM FOR FABRICATING THE SAME - Provided are a non-woven fabric current collector and a method and system of fabricating a battery using the same. The non-woven fabric current collector comprises a upper conductive non-woven fabric sheet and a lower conductive non-woven fabric sheet including a network of a conductive fibers; and a tension reinforcing layer that has a greater tensile strength than the conductive non-woven fabric sheets, arranged between the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet, mediates adhesion between the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet, and has pores via which the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet communicate with each other. | 02-18-2016 |
20160079006 | ELECTRODE FOR POWER STORAGE DEVICE, POWER STORAGE DEVICE, AND METHOD FOR MANUFACTURING ELECTRODE FOR POWER STORAGE DEVICE - The electrode for the power storage device includes carbon nanotubes, an ionic liquid, and a three-dimensional network metal porous body having a plurality of pore portions filled with the carbon nanotubes and the ionic liquid, wherein, in pore portions exposed at a surface of the three-dimensional network metal porous body, of the plurality of pore portions, a ratio (d/D) between a pore portion diameter (D) in a first direction within the surface of the three-dimensional network metal porous body and a pore portion diameter (d) in a second direction orthogonal to the first direction within the surface of the three-dimensional network metal porous body is in a range of 003-17-2016 | |
20160079583 | ENERGY STORAGE DEVICE - An energy storage device includes a positive electrode terminal, a first electrode body and a second electrode body, and a positive electrode current collector electrically connecting the positive electrode terminal and the first and second electrode bodies. The positive electrode current collector includes a terminal connection portion electrically connected to the positive electrode terminal, inner electrode body connection portions connected to the first and second electrode bodies, and a coupling portion extending from an end of the terminal connection portion and coupling the terminal connection portion and the inner electrode body connection portions. The coupling portion has a substantially trapezoidal shape with a width at a connection end with the end of the terminal connection portion being larger than a width at a connection end with the inner electrode body connection portions. | 03-17-2016 |
20160118641 | BATTERY TERMINAL, METHOD FOR MANUFACTURING BATTERY TERMINAL, AND BATTERY - A battery terminal includes a shaft portion and a flange portion. The battery terminal is made of a clad material in which at least a first metal layer and a second metal layer are bonded to each other. Each of the shaft portion and the flange portion includes the first metal layer on a first side in a shaft direction and the second metal layer on a second side in the shaft direction. The first metal layer in the shaft portion includes a protruding portion that further protrudes to the second side in the shaft direction with respect to a surface of the first metal layer on the second side in the shaft direction in the flange portion. | 04-28-2016 |
20160126526 | COMPONENT FOR SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, AND SECONDARY BATTERY AND MULTI-BATTERY SYSTEM MANUFACTURED BY USING THE COMPONENT - The present invention describes a component for a secondary battery and a manufacturing method thereof, and a secondary battery manufactured by using the component. The component for a secondary battery according to the present invention comprises a lead-free soldering bridge having a melting point of 150 to 300° C. and containing tin (Sn) and copper (Cu) as a main ingredient; the first and second metal plates spaced therebetween through a gap and coupling with the lead-free soldering bridge. According to the present invention, when an over-current flows through the component for a secondary battery, the temperature of the lead-free soldering bridge is locally increased rapidly to melt the lead-free soldering bridge, thereby efficiently interrupting the flow of an over-current. | 05-05-2016 |
20160141590 | BATTERY - A battery includes an electrode assembly; a positive electrode tab and a negative electrode tab both extending from the electrode assembly; an insulation spacer having openings through which the positive and negative electrode tabs extend, and a positive electrode lead and a negative electrode lead coupled to the respective positive and negative electrode tabs in the insulation spacer, wherein each opening has a first opening and a second opening, and wherein the first opening is at a lower region of the insulation spacer and the second opening is at a side region of the insulation spacer. | 05-19-2016 |
20160141592 | TERMINAL COMPONENT AND METHOD OF MANUFACTURING TERMINALCOMPONENT - A terminal component includes an external terminal that is provided above a cover covering an electrode body; and an internal terminal that is provided below the cover and extends through a through-hole of the external terminal. A part of the internal terminal protrudes above the external terminal. A dimension of the part of the internal terminal in a radial direction of the through-hole is larger than a diameter of the through-hole. The external terminal has a joint surface that is a first part of an upper surface of the external terminal and that is joined to the internal terminal, and a non-joint surface that is a second part of the upper surface of the external terminal and that is located outside the joint surface. The joint surface is located higher than at least part of the non-joint surface. | 05-19-2016 |
20160172655 | CONNECTION METHOD IN AN ACCUMULATOR AND ACCUMULATOR THUS CONNECTED | 06-16-2016 |
20160175979 | METHOD FOR WELDING ELECTRODE TAB OF SECONDARY BATTERY AND ELECTRODE ASSEMBLY MANUFACTURED USING SAME | 06-23-2016 |
20160181650 | SECONDARY BATTERY | 06-23-2016 |
20160254103 | METHOD OF MANUFACTURING AN ELECTRODE FOR AN ENERGY STORAGE DEVICE | 09-01-2016 |
20190148704 | Method for Manufacturing Lead Material for Battery | 05-16-2019 |
20220140451 | BATTERY TAB DESIGN, METHOD OF MANUFACTURE THEREOF AND BATTERIES COMPRISING THE SAME - A tab for use in a battery comprises a metal piece that comprises a cross-sectional area geometry that is a rhombus, a parallelogram or a trapezoid when viewed in a lateral direction. The metal piece further comprises a cross-sectional area geometry having a variable thickness when viewed in a longitudinal direction that is perpendicular to the lateral direction. When viewed in the longitudinal direction, a tab thickness t | 05-05-2022 |