Entries |
Document | Title | Date |
20080213664 | THIN FILM BATTERY AND MANUFACTURING METHOD - In a method of fabricating a battery, a substrate is annealed to reduce surface contaminants or even water of crystallization from the substrate. A series of battery component films are deposited on a substrate, including an adhesion film, electrode films, and an electrolyte film. An adhesion film is deposited on the substrate and regions of the adhesion film are exposed to oxygen. An overlying stack of cathode films is deposited in successive deposition and annealing steps. | 09-04-2008 |
20080233478 | ANODE, METHOD OF MANUFACTURING IT, BATTERY, AND METHOD OF MANUFACTURING IT - A battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The node has an anode current collector and an anode active material layer provided thereon, and the anode active material layer contains a plurality of anode active material particles having silicon, and a metal material having a metal element not being alloyed with an electrode reactant in a gap between the anode active material particles. | 09-25-2008 |
20080233479 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials for rechargeable lithium batteries are provided. One negative active material includes at least one Si active particle and a metal matrix surrounding the Si active particle. The metal matrix does not react with the Si active particle. The negative active material has a martensite phase when X-ray diffraction intensity is measured using a CuKα ray. The negative active material has improved efficiency and cycle-life. | 09-25-2008 |
20080233480 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY - Negative active materials and rechargeable lithium batteries including the negative active materials are provided. The negative active material includes an intermetallic compound of Si and a metal, and a metal matrix including Cu and Al. The negative active material may provide a rechargeable lithium battery having high capacity and excellent cycle-life and cell efficiency. | 09-25-2008 |
20080241688 | Negative electrode for rechargeable lithium battery and rechargeable lithium battery including the same - A negative electrode for a rechargeable lithium battery includes a current collector and a negative active mass disposed on the current collector. The negative active mass includes a negative active material including a lithium vanadium composite oxide and a crystalline structure aid for inhibiting deterioration of a crystalline structure. The negative active material can inhibit an irreversible crystalline structure change during charge and discharge, and does not incur decomposition of an electrolyte resulting in improvement of a cycle-life of a rechargeable lithium battery. | 10-02-2008 |
20080241689 | NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE - A nonaqueous electrolyte battery includes a negative electrode and a positive electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material having a lithium ion absorption potential of 0.4 V (vs. Li/Li+) or more. The negative electrode current collector is made of aluminum or an aluminum alloy. The positive electrode includes a positive electrode current collector and a positive electrode active material. The positive electrode current collector has a total area and specific capacitance larger than those of the negative electrode current collector, and is made of aluminum or an aluminum alloy. | 10-02-2008 |
20080248389 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials for rechargeable lithium batteries are provided. One negative active material includes a metal matrix, and an intermetallic compound including a Si active metal and an additive metal dispersed in the metal matrix. The intermetallic compound does not react with the metal matrix. | 10-09-2008 |
20080268339 | ACTIVE MATERIAL, ELECTRODE, BATTERY, AND METHOD OF MANUFACTURING ACTIVE MATERIAL - An active material comprises a core particle containing LiCo | 10-30-2008 |
20080280203 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery has a positive electrode ( | 11-13-2008 |
20090004566 | Negative Electrode for Non-Aqueous Electrolyte Secondary Batteries, and Non-Aqueous Electrolyte Secondary Battery Having the Same - A negative electrode for non-aqueous electrolyte secondary batteries has a mixture layer disposed on a current collector. The mixture layer includes a composite negative electrode active material, a first binder containing an acryl-group-containing polymer, and a second binder containing adhesive rubber particles. The composite negative electrode active material contains carbon nanofibers, a catalyst element, and silicon-containing particles capable of charging and discharging at least lithium ions. The first binder binds the silicon-containing particles to the current collector, and the second binder binds the carbon nanofibers together. | 01-01-2009 |
20090011333 | ANODE MATERIAL, ANODE AND BATTERY, AND METHODS OF MANUFACTURING THEM - A battery capable of improving the cycle characteristics while securing the input and output characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer on an anode current collector. The anode active material layer contains an anode material having a plurality of covering particles on a surface of an anode active material capable of intercalating and deintercalating an electrode reactant. The plurality of covering particles contain at least one of an alkali metal salt and an alkali earth metal salt. | 01-08-2009 |
20090023065 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE INCLUDING THE SAME AND LITHIUM BATTERY USING THE ANODE - A composite anode active material includes a composite of a carbon-based anode active material, a metal-based anode active material and polymer particles. By increasing the conductivity of the composite anode active material, a lithium battery having a large capacity, high initial efficiency, high rate capability and improved cycle life performance can be obtained. An anode includes the composite anode active material and a lithium battery includes the anode. | 01-22-2009 |
20090042101 | High-Power Battery - A method of forming battery electrodes with high specific surface and thin layers of active material is disclosed. The method enables low series resistance and high battery power. | 02-12-2009 |
20090047578 | POSITIVE ELECTRODE FOR ALKALINE BATTERY AND ALKALINE BATTERY USING THE SAME - A positive electrode for an alkaline battery of the present invention includes a spinel-type manganese oxide as a positive electrode active material, wherein the spinel-type manganese oxide has a potential of 0.26 to 0.34 V with respect to a Hg/HgO reference electrode, and the content of the spinel-type manganese oxide in the entire positive electrode active material is not less than 30 mass %. Further, an alkaline battery of the present invention includes the above-described positive electrode for an alkaline battery of the invention, a negative electrode and an electrolyte. | 02-19-2009 |
20090061319 | SILICON THIN FILM ANODE FOR LITHIUM SECONDARY BATTERY AND PREPARATION METHOD THEREOF - Disclosed are a silicon thin film anode for a lithium secondary battery having enhanced cycle characteristics and capacity and a preparation method thereof. A preparation method for a silicon thin film anode for a lithium secondary battery, comprises: preparing a collector including a metal; forming an anode active material layer including a silicon on the collector; forming one or more interface stabilizing layer, by annealing the collector and the anode active material layer under one of an inert atmosphere, a reduced atmosphere, and a vacuum atmosphere to react a metallic component of at least one of the collector and the anode active material layer with a silicon component of the anode active material layer at an interface therebetween; and forming a carbon coating layer on the anode active material layer by performing an annealing process in a hydrocarbon atmosphere. | 03-05-2009 |
20090068559 | SUBSTANCE AND BATTERY INCLUDING THE SAME - A substance includes an oxide including at least one element selected from the group including cobalt Co, nickel Ni, manganese Mn, iron Fe, and copper Cu; and silicon Si chemically bonded to the surface of the oxide. Also, a battery includes a cathode, an anode, and an electrolyte, wherein the cathode includes an oxide including at least one selected from the group including cobalt Co, nickel Ni, manganese Mn, iron Fe, and copper Cu; and a substance including silicon Si chemically bonded to the surface of the oxide. | 03-12-2009 |
20090098460 | NEGATIVE PLATE FOR LITHIUM ION BATTERIES AND A METHOD OF PREPARING THE SAME - In one aspect, a negative plate for a battery comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric. In another aspect, a method for preparing a negative plate for a battery comprises coating a negative active material onto a negative current collector. The negative current collector comprises a conductive non-woven fabric. In yet another aspect, a battery comprises a negative plate. The negative plate comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric. | 04-16-2009 |
20090117463 | LITHIUM ION SECONDARY BATTERY - In a lithium ion secondary battery including a positive electrode, a negative electrode containing an alloy-based negative electrode active material, a separator, a positive electrode lead, a negative electrode lead, a gasket, and an outer case, the positive electrode is allowed to contain an oxygen deficient non-stoichiometric oxide, or an oxygen removing layer containing an oxygen deficient non-stoichiometric oxide is provided between the positive electrode and the separator. In a lithium ion secondary battery containing the alloy-based negative electrode active material, a reaction between oxygen generated in the positive electrode and the alloy-based negative electrode active material, and heat generation accompanying the reaction are prevented. | 05-07-2009 |
20090123840 | Non-Aqueous Electrolyte Secondary Battery - A non-aqueous electrolyte secondary battery includes a negative electrode, a positive electrode, and a non-aqueous electrolyte interposed therebetween. On at least one side of a current collector of the negative electrode, is formed a negative-electrode mixture layer containing an active material capable of storing and emitting at least lithium ions. The negative-electrode mixture layer has a plurality of mixture-layer expansion-absorbing grooves formed parallel to each other in such a manner as to expose the current collector. The mixture-layer expansion-absorbing grooves are formed in the position facing the positive-electrode mixture layer. | 05-14-2009 |
20090176158 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A negative electrode for a lithium secondary battery of the present invention includes a current collector and a negative electrode active material layer carried on the current collector. The negative electrode active material layer includes a plurality of columnar particles. The current collector has a surface including a depression and a plurality of projected regions defined by the depression. The projected regions carry the columnar particles. Further, the present invention relates to a lithium secondary battery using the foregoing negative electrode. According to the present invention, it is possible to provide a high-capacity negative electrode excellent mainly in cycle characteristics for a lithium secondary battery, and a lithium secondary battery including the same. | 07-09-2009 |
20090186275 | SYNTHESIS OF NANOPARTICLES OF LITHIUM METAL PHOSPHATE POSITIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Novel process for the preparation of finely divided, nano-structured, olivine lithium metal phosphates (LiMPO.sub.4) (where metal M is iron, cobalt, manganese, nickel, vanadium, copper, titanium and mix of them) materials have been developed. This so called Polyol” method consists of heating of suited precursor materials in a multivalent, high-boiling point multivalent alcohol like glycols with the general formula HO—(—C | 07-23-2009 |
20090220858 | Composite Compound With Mixed Crystalline Structure - Described is a composite lithium compound having a mixed crystalline structure. Such compound was formed by heating a lithium compound and a metal compound together. The resulting mixed metal crystal exhibits superior electrical property and is a better cathode material for lithium secondary batteries. | 09-03-2009 |
20090220859 | CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM INCLUDING THE SAME - Provided is a cathode active material including a lithium metal oxide of Formula 1 below: | 09-03-2009 |
20090220860 | Composite compound with mixed crystalline structure - A composite lithium compound having a mixed crystalline structure is provided. Such compound can be formed by heating lithium, iron, phosphorous and carbon sources with a lithium metal compound. The resulting mixed metal crystal can exhibit superior electrical property and is a better cathode material for lithium secondary batteries. | 09-03-2009 |
20090220861 | Method for producing alkaline battery, and alkaline battery - The invention provides an alkaline battery that does not allow generation of hydrogen gas. An alkaline battery comprises a positive electrode mixture, a negative electrode mixture containing zinc alloy powder, a separator that separates the positive electrode mixture from the negative electrode mixture, an alkaline electrolyte, a positive electrode can that accommodates the positive electrode mixture, and a negative electrode can that accommodates the negative electrode mixture and has a tin coating layer formed after chemical polishing with a mixed acid and surface treatment with a conductive polymer. The opening edge of the negative electrode can has a folded portion formed along the outer peripheral surface thereof to have a U-shaped cross section, and a gasket has a protruding portion formed on the central side and having a J-shaped cross section. The space formed between the inner peripheral surface of the folded portion of the negative electrode can and the central-side protruding portion of the gasket is no wider than the thickness of the negative electrode can, and the length of the protruding portion is at least ½ the length of the folded portion. | 09-03-2009 |
20090226809 | LITHIUM-SULFUR BATTERY AND CATHODE THEREFORE - An improved cathode suitable for lithium-sulfur batteries, a battery including the cathode, and a battery including a separator containing inorganic fillers are disclosed. The cathode includes sulfur and a metal oxide and optionally includes an additional polymeric material. The metal oxide reduces dissolution of sulfur at the cathode and reduces sulfur-containing deposits on the battery anode, thereby providing a battery with relatively high energy density and good partial discharge performance. The separator also reduces unwanted diffusion of sulfur species. | 09-10-2009 |
20090280410 | 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. | 11-12-2009 |
20090286158 | LITHIUM-ION BATTERY - A lithium-ion battery includes a positive electrode that includes a positive current collector, a first active material, and a second active material. The lithium-ion battery also includes a negative electrode comprising a negative current collector, a third active material, and a quantity of lithium in electrical contact with the negative current collector. The first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions, and the second active material exhibits charging and discharging capacity below a corrosion potential of the negative current collector and above a decomposition potential of the first active material. | 11-19-2009 |
20090297948 | METAL OXIDE NEGATIVE ELECTRODES FOR LITHIUM-ION ELECTROCHEMICAL CELLS AND BATTERIES - Provided are negative electrode compositions for lithium-ion electrochemical cells that include metal oxides and polymeric binders. Also provided are electrochemical cells and battery packs that include electrodes made with these compositions. | 12-03-2009 |
20090325072 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery according to embodiments of the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a first layered lithium compound having an open circuit potential (based on lithium) of 3 V or greater, and a second layered lithium compound having an open circuit potential of less than 3 V. The second layered lithium compound is included in an amount of from about 0.99 to about 30 wt % based on a total amount of the first layered lithium compound and the second layered lithium compound. | 12-31-2009 |
20100055566 | ACTIVE ELEMENT AND BATTERY AS WELL AS METHOD FOR THE PRODUCTION THEREOF - The present invention relates to an active element for a battery whose material contains copper oxyphosphate and an additive improving the conductivity. The proportion of the additive improving the conductivity in the material is between 3 and 7 wt. %, preferably between approximately 3 wt. % and approximately 5 wt. %, and the proportion of the copper oxyphosphate in the material adds up to 100 wt. %. The invention additionally relates to a battery having an active element of this type as well as a method for producing an active element of this type and a battery of this type. The battery according to the invention is suitable in particular for use in medical implants. | 03-04-2010 |
20100119942 | COMPOSITE COMPOSITIONS, NEGATIVE ELECTRODES WITH COMPOSITE COMPOSITIONS AND CORRESPONDING BATTERIES - Compositions are described that can provide high energy density active materials for use in negative electrodes of lithium ion batteries. These materials generally comprise silicon and/or tin, and may further comprise carbon and/or zinc as well as other elements in appropriate embodiments. The active materials can have moderate volume changes upon cycling in a lithium ion battery. | 05-13-2010 |
20100119943 | Positive active material composition for rechargeable battery, electrode including the same, and rechargeable battery including the same - A positive active material composition for a rechargeable battery, a positive electrode including the same, and a rechargeable battery including the same, the positive active material composition including a positive active material and a surface-modified metal oxide. | 05-13-2010 |
20100143800 | NEGATIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARING METHOD THEREOF AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - The present invention relates to a negative active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the same. The negative active material for a lithium secondary battery includes a compound and a carbon composite represented by the following Chemical Formula 1. | 06-10-2010 |
20100151324 | METHOD OF FABRICATING FIBRES COMPOSED OF SILICON OR A SILICON-BASED MATERIAL AND THEIR USE IN LITHIUM RECHARGEABLE BATTERIES - A method of fabricating fibres of silicon or silicon-based material comprises the steps of etching pillars on a substrate and detaching them. A battery anode can then be created by using the fibres as the active material in a composite anode electrode. | 06-17-2010 |
20100159324 | LITHIUM POWDERS FOR BATTERIES - This invention relates to lithium-ion batteries and cathode powders for making lithium-ion batteries where the cathode powder comprises a blend or mixture of at least one lithium transition metal poly-anion and with one or more lithium transition-metal oxide powders. A number of different lithium transition-metal oxides are suitable, especially formulations that include nickel, manganese and cobalt. The preferred lithium transition metal poly-anion is carbon-containing lithium vanadium phosphate. Batteries using the mixture or blend of these powders have been found to have high specific capacity, especially based on volume, high cycle life, substantially improved safety issues as compared to lithium transition-metal oxides, per se, and an attractive electrode potential profile. | 06-24-2010 |
20100167126 | ELECTRODE COMPOSITIONS BASED ON AN AMORPHOUS ALLOY HAVING A HIGH SILICON CONTENT - An electrode composition for a lithium ion battery that includes an amorphous alloy having the formula Si | 07-01-2010 |
20100173197 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME AND BATTERY - A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode ( | 07-08-2010 |
20100196760 | PRODUCTION - A pre-charged material including silicon-comprising fibres characterised in that two or more of the fibres are bonded together to create both a bonded felt anode structure, with or without a current collector, and a composite anode structure with a current collector and an electrode structure. The structure overcomes problems associated with charge/discharge capacity loss. | 08-05-2010 |
20100203386 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature. | 08-12-2010 |
20100203387 | ELECTRODE FOR LITHIUM RECHARGEABLE BATTERY AND LITHIUM RECHARGEABLE BATTERY COMPRISING THE ELECTRODE - An electrode for a lithium secondary battery | 08-12-2010 |
20100216023 | Process for producing carbon nanostructure on a flexible substrate, and energy storage devices comprising flexible carbon nanostructure electrodes - An energy storage device structure comprises a first electrode layer, an electrolyte layer and a second electrode layer. At least one of the electrode layers comprise a metallic foil base layer and a layer of carbon nanotubes grown on the base layer, the carbon nanotube layer being arranged to face the electrolyte layer. The structure may be made in such a way that its width and length are much larger than its thickness, so that it can rolled up or folded and then hermetically sealed to form an energy storage unit. The layer of carbon nanotubes is grown on the metallic foil base layer by a chemical vapor deposition process at a temperature no higher than 550° C. The carbon nanotubes in the carbon nanotube layer are at least partially aligned in a direction that is perpendicular to the surface of the metallic base layer. | 08-26-2010 |
20100233540 | LITHIUM IRON PHOSPHATE HAVING OLIVINE STRUCTURE AND METHOD FOR PREPARING THE SAME - Provided is an olivine-type lithium iron phosphate composed of secondary particles having a mean particle diameter (D | 09-16-2010 |
20100239907 | Power Storage Device and Manufacturing Method Thereof - A power storage device having a small thickness is manufactured. A manufacturing method of the power storage device includes: forming a first layer and a second layer over a first substrate; forming a first insulating layer, a positive electrode and a negative electrode over the second layer; forming a solid electrolyte layer over the first insulating layer, the positive electrode, and the negative electrode; forming a sealing layer to cover the solid electrolyte layer; forming a planarization film and a support over the sealing layer; separating the first layer and the second layer from each other so that the second layer, the positive electrode, the negative electrode, the solid electrolyte layer, the sealing layer, the planarization film, and the support are separated from the first substrate; attaching the separated structure to a second substrate which is flexible; and separating the support from the planarization film. | 09-23-2010 |
20100239908 | LITHIUM-ION BATTERY - A lithium-ion battery includes a positive electrode comprising 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 is selected from the group consisting of Li | 09-23-2010 |
20100261059 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE INCLUDING THE COMPOSITE ANODE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE ANODE, METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - A composite anode active material including an intermetallic compound; carbon; and inorganic particles, an anode including the composite anode active material, a lithium battery employing the anode, and a method of preparing the anode active material. | 10-14-2010 |
20100266898 | ELECTRODE FOR ELECTROCHEMICAL DEVICE - A problem to be solved by the invention is to provide an electrode for an electrochemical device which has a high capacity, suppresses the separation of an active material due to charge/discharge, and exhibits good cycle characteristics. To solve this problem, in the invention, an electrode | 10-21-2010 |
20100323244 | BATTERY ELECTRODES AND METHODS OF MANUFACTURE - This disclosure relates to compositions and methods of manufacture of electrodes for batteries, including rechargeable lithium batteries, wherein at least one electrode comprises an electroactive material and a malleable metal. The electrode may be substantially free of other conductive additives and organic binders. Manufacture of the electrode may be performed without solvent or sintering. | 12-23-2010 |
20100330422 | Unit Cell for Secondary Battery Having Conductive Sheet Layer and Lithium Ion Secondary Battery Having the Same - Disclosed herein is a unit cell for a lithium ion secondary battery, which includes an electrode laminate formed in such a manner that a plurality of unit structures are stacked, each of which includes and least one electrode and at least one separation layer; and at least one conductive sheet layer located between certain layers in the electrode laminate and electrically connected to an electrode lead. The conductive sheet layer of the unit cell for the lithium ion secondary battery rapidly conducts current to the outside or generates heat in quantity smaller than the quantity of heat generated in positive and negative electrodes when short-circuit occurs due to a physical or electrical impact applied to the battery. Accordingly, it is possible to reduce the risk of firing or explosion due to the physical or electrical impact to improve the safety of the lithium ion secondary battery. | 12-30-2010 |
20100330423 | INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES - Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions. Nanostructures can be interconnected during forming the nanoscale coating, when the coating formed around two nearby template structures overlap. | 12-30-2010 |
20100330424 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY - A negative electrode ( | 12-30-2010 |
20100330425 | PASSIVATION FILM FOR SOLID ELECTROLYTE INTERFACE OF THREE DIMENSIONAL COPPER CONTAINING ELECTRODE IN ENERGY STORAGE DEVICE - A system and method for fabricating lithium-ion batteries using thin-film deposition processes that form three-dimensional structures is provided. In one embodiment, an anodic structure used to form an energy storage device is provided. The anodic structure comprises a conductive substrate, a plurality of conductive microstructures formed on the substrate, a passivation film formed over the conductive microstructures, and an insulative separator layer formed over the conductive microstructures, wherein the conductive microstructures comprise columnar projections. | 12-30-2010 |
20100330426 | Electrode Active Material and Method of Making The Same - The invention provides an electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to said first electrode, and an electrolyte material interposed there between. The first electrode includes an alkali metal phosphorous compound doped with an element having a valence state greater than that of the alkali metal. | 12-30-2010 |
20100330427 | NEGATIVE ELECTRODE AND METHOD FOR PRODUCING THE SAME AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - In a negative electrode including a negative electrode plate, a negative electrode lead, and an alloy layer, the negative electrode plate includes a negative electrode current collector and a thin film-like negative electrode active material layer including an alloy-based negative electrode active material and being formed on a surface of the negative electrode current collector; the negative electrode lead contains at least one metal or alloy selected from the group consisting of nickel, nickel alloys, copper, and copper alloys; and the negative electrode current collector and the negative electrode lead are bonded to each other via an alloy layer. As such, in the negative electrode utilizing an alloy-based negative electrode active material, the negative electrode current collector and the negative electrode lead are bonded to each other in an efficient and secured manner, and the conductivity between the negative electrode current collector and the negative electrode lead is improved. As a result, a high capacity negative electrode having good current collecting performance is obtained. | 12-30-2010 |
20110027651 | OLIVINE-TYPE CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM BATTERY, OLIVINE-TYPE CATHODE ACTIVE MATERIAL FOR LITHIUM BATTERY, METHOD FOR PREPARING THE SAME AND LITHIUM BATTERY WITH THE SAME - The present invention provides an olivine-type positive active material precursor for a lithium battery that includes MXO | 02-03-2011 |
20110039158 | CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES - The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO | 02-17-2011 |
20110045351 | High-Power Nanoscale Cathodes for Thin-Film Microbatteries - A method, including placing a substrate of a battery in a bath consisting of a metal M chosen from a metal group consisting of Fe, Ni, Co, Cu, W, V, and Mn, an oxidant selected from an oxidant group consisting of oxygen and sulfur, and a polymer. The method also includes applying an electrical current so as to form on the substrate a metal M compound cathode having a nanoscale grain structure. | 02-24-2011 |
20110052986 | Sodium Ion Batteries - Sodium ion batteries are based on sodium based active materials selected among compounds of the general formula A | 03-03-2011 |
20110070493 | CURRENT COLLECTORS HAVING TEXTURED COATING - A current collector and an electric double layer capacitor including a current collector. The current collector has a conductive layer with an electrode-facing surface and an opposing second surface, each surface having an area, and a textured coating formed over and in contact with at least a majority of the electrode-facing surface. | 03-24-2011 |
20110070494 | Electrochemical cells comprising porous structures comprising sulfur - The present invention relates to the use of porous structures comprising sulfur in electrochemical cells. Such materials may be useful, for example, in forming one or more electrodes in an electrochemical cell. For example, the systems and methods described herein may comprise the use of an electrode comprising a conductive porous support structure and a plurality of particles comprising sulfur (e.g., as an active species) substantially contained within the pores of the support structure. The inventors have unexpectedly discovered that, in some embodiments, the sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can be tailored such that the contact between the electrolyte and the sulfur is enhanced, while the electrical conductivity and structural integrity of the electrode are maintained at sufficiently high levels to allow for effective operation of the cell. Also, the sizes of the pores within the porous support structures and/or the sizes of the particles within the pores can be selected such that any suitable ratio of sulfur to support material can be achieved while maintaining mechanical stability in the electrode. The inventors have also unexpectedly discovered that the use of porous support structures comprising certain materials (e.g., metals such as nickel) can lead to relatively large increases in cell performance. In some embodiments, methods for forming sulfur particles within pores of a porous support structure allow for a desired relationship between the particle size and pore size. The sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can also be tailored such that the resulting electrode is able to withstand the application of an anisotropic force, while maintaining the structural integrity of the electrode. | 03-24-2011 |
20110086271 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are a negative active material for a rechargeable lithium battery that includes a core including silicon oxide represented by the following Chemical Formula 1; and a surface-treatment layer surrounding the core and including metal oxide represented by the following Chemical Formula 2, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The metal of the metal oxide is included in an amount of about 0.1 wt % to about 20 wt % based on the total weight of the negative active material for a rechargeable lithium battery. | 04-14-2011 |
20110086272 | LI-ION BATTERY AND ITS PREPARATION METHOD - Disclosed herein is a Li-ion cell comprising a cathode, an anode, and a separator disposed between the cathode and the anode, wherein the cathode comprises Li-ion cathode active material, and the anode comprises Li-ion anode active material and an additive which has an energy density greater than that of the Li-ion anode active material and which is capable of reacting irreversibly with Li-ions. | 04-14-2011 |
20110097628 | NUCLEATION AND GROWTH OF TIN PARTICLES INTO THREE DIMENSIONAL COMPOSITE ACTIVE ANODE FOR LITHIUM HIGH CAPACITY ENERGY STORAGE DEVICE - Embodiments of the present invention generally relate to lithium-ion batteries, and more specifically, to a system and method for fabricating such batteries using thin-film processes that form three-dimensional structures. In one embodiment, an anodic structure used to form an energy storage device is provided. The anodic structure comprises a flexible conductive substrate, a plurality of conductive microstructures formed on the conductive substrate, comprising a plurality of columnar projections and dendritic structures formed over the plurality of columnar projections and a plurality of tin particles formed on the plurality of conductive microstructures. In another embodiment, the anodic structure further comprises a tin nucleation layer comprising tin particles formed on the flexible conductive substrate between the flexible conductive substrate and the plurality of conductive microstructures. | 04-28-2011 |
20110104569 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME, AND METHOD FOR PRODUCING THE SAME - A method for producing a positive electrode for non-aqueous electrolyte secondary battery of the present invention includes the steps of: (1) producing a positive electrode precursor by applying a positive electrode slurry including a positive electrode active material comprising a lithium-containing composite oxide including nickel, a binder, and a conductive agent on a positive electrode core material, the positive electrode active material including secondary particles having an average particle diameter of 8 μm or more, and then drying the positive electrode slurry to form a positive electrode material mixture layer; and (2) rolling while heating the positive electrode precursor to produce a positive electrode in which 3.5 g or more of the positive electrode active material is included per 1 cm | 05-05-2011 |
20110111297 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery including: an electrode group which includes a positive electrode containing lithium-containing composite oxide, a negative electrode capable of inserting and extracting lithium ions, and a porous insulator interposed between the positive electrode and the negative electrode, and is sealed in a battery case together with a nonaqueous electrolyte, wherein the porous insulator has a Gurley number of 100 sec/100 ml to 1000 sec/100 ml, both inclusive, and an average pore diameter of 0.05 μm to 0.15 μm, both inclusive. | 05-12-2011 |
20110117433 | SOLID ELECTROLYTE CELL AND POSITIVE ELECTRODE ACTIVE MATERIAL - A solid electrolyte cell includes: a positive electrode side layer having a positive electrode active material layer; a negative electrode side layer; and a solid electrolyte layer formed between the positive electrode side layer and the negative electrode side layer, wherein the positive electrode active material layer contains a lithium phosphoric acid compound which is in an amorphous state and is represented by the following formula (1), | 05-19-2011 |
20110123865 | COMPOSITE FOR CATHODE OF LI-ION BATTERY, ITS PREPARATION PROCESS AND THE LI-ION BATTERY - Disclosed herein is a composite for the cathode of Li-ion battery comprising: a base active material represented by Li | 05-26-2011 |
20110129732 | COMPRESSED POWDER 3D BATTERY ELECTRODE MANUFACTURING - Embodiments of the invention contemplate forming an electrochemical device and device components, such as a battery cell or supercapacitor, using thin-film or layer deposition processes and other related methods for forming the same. In one embodiment, a battery bi-layer cell is provided. The battery bi-layer cell comprises an anode structure comprising a conductive collector substrate, a plurality of pockets formed on the conductive collector substrate by conductive microstructures comprising a plurality of columnar projections, and an anodically active powder deposited in and over the plurality of pockets, an insulative separator layer formed over the plurality of pockets, and a cathode structure joined over the insulative separator. | 06-02-2011 |
20110143203 | Energy Storage Device - An energy storage device comprising an anode, electrolyte, and cathode is provided. The cathode comprises a plurality of granules comprising a support material, an active electrode metal, and a salt material, such that the cathode has a granule packing density equal to or greater than about 2 g/cc. A cathode comprising greater than about 10 volume % total metallic content in a charged state of the cathode is also provided. | 06-16-2011 |
20110189543 | Cathode active material with magnesium, and magnesium secondary battery with the same - Disclosed herein is a magnesium secondary battery. The magnesium secondary battery includes an anode, a cathode, and an electrolyte material in which carrier ions, used as carriers between the anode and the cathode at the time of charge/discharge, are received, wherein at least any one of the cathode and the cathode is composed of a spinel crystal structure having magnesium ions Mg. | 08-04-2011 |
20110206987 | NEGATIVE ELECTRODE, LITHIUM BATTERY EMPLOYING THE SAME, AND METHOD OF PREPARING THE NEGATIVE ELECTRODE - A negative electrode, a lithium battery employing the negative electrode, and a method of preparing the negative electrode. The negative electrode includes a current collector, and a negative electrode active material layer disposed on the current collector. The negative electrode active material layer includes: composite negative electrode active material particles comprising tin (Sn), and conductive metal particles. The conductive metal particles form an intermetallic compound with the Sn, and an average particle size of the conductive metal particles is at least 10 μm. | 08-25-2011 |
20110206988 | LITHIUM ION BATTERY - An object of the present invention is to provide a lithium ion battery which is excellent in properties at large current and can be applied to applications requiring high output power even when the mixture layers are made thick. The present invention provides a lithium ion battery including a positive electrode including a positive electrode mixture layer formed on a current collector, a negative electrode including a negative electrode mixture layer formed on a current collector and an electrolyte, the positive electrode and the negative electrode being disposed through the intermediary of a separator, wherein the positive electrode includes as a positive electrode active material a lithium composite oxide represented by LiNi | 08-25-2011 |
20110223481 | PROCESS FOR PRODUCING METAL SULFIDE - The present invention provides a production process of a metal sulfide, which includes placing a metal component and sulfur in a conductive container, and applying a pulsed direct current to the container in a non-oxidizing atmosphere to cause the metal component to react with sulfur, and also provides a metal sulfide obtained by the process and represented by a composition formula: MS | 09-15-2011 |
20110229762 | Method Of Using Cyclic Pressure To Increase The Pressed Density Of Electrodes For Use In Electrochemical Cells - The traditional method of building a CF | 09-22-2011 |
20110229763 | CATHODE MATERIAL FOR A BATTERY WITH IMPROVED CYCLE PERFORMANCE AT A HIGH CURRENT DENSITY - A material for use in the cathode terminal of a battery that is made from a lithiated manganese oxide which is doped with ruthenium and optionally with a transition material and a method for the synthesis of the same. The material exhibits improved conductivity and cyclic performance at high current density (current density of 1470 mA/g and higher) and can be used in hybrid vehicles and other electronic devices due to its good cyclic performance at high current density and its relatively large capacity. | 09-22-2011 |
20110236756 | Negative electrode for lithium secondary battery and manufacturing method therreof - A negative electrode for a lithium (Li) secondary battery, a method of forming the same, and a secondary battery, the negative electrode including a tin (Sn) based current collector layer; and a multilayer film on the Sn based current collector, the multilayer film having two or more layers, wherein the multilayer film includes at least one porous layer. | 09-29-2011 |
20110274973 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - The positive active material for a rechargeable lithium battery includes a composite material of a microporous carbon-based material and a lithium composite compound and a carbon layer on the surface of the composite material. | 11-10-2011 |
20110274974 | THIN FILM SOLID STATE LITHIUM ION SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge. | 11-10-2011 |
20110281165 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode that contains a lithium composite oxide as an active material. The cut-off voltage of charge is set to 4.25 to 4.5 V. In a region where the positive electrode and the negative electrode face each other, the Wp/Wn ratio R is in the range from 1.3 to 19 where Wp is the weight of the active material contained in the positive electrode per unit area and Wn is the weight of the active material contained in the negative electrode per unit area. This battery is excellent in safety, cycle characteristics, and storage characteristics even when the cut-off voltage of charge in a normal operating condition is set to 4.25 V or more. | 11-17-2011 |
20120009475 | ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME - An electrode for a non-aqueous electrolyte secondary battery includes a sheet-like current collector and an active material layer including a first layer and a second layer which are adhering to a surface of the current collector in this order. The first layer includes a carbon material that absorbs or releases lithium ions reversibly at a first potential, while the second layer includes a transition metal oxide that absorbs or releases lithium ions reversibly at a second potential higher than the first potential. The difference between the first potential and the second potential is 0.1 V or more, and the ratio of the thickness T1 of the first layer to the thickness T2 of the second layer, i.e., the ratio T1/T2, is from 0.33 to 75. | 01-12-2012 |
20120015248 | POSITIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL - A positive active material, a method of preparing the same, and a lithium battery including the same. | 01-19-2012 |
20120021287 | POSITIVE ELECTRODE AND LITHIUM BATTERY INCLUDING THE SAME - Disclosed is a positive electrode and a lithium battery including the positive electrode. The positive electrode includes a first active material represented by Formula 1: Li | 01-26-2012 |
20120021288 | ELECTRODE-ACTIVE ANION-DEFICIENT LITHIUM TRANSITION-METAL PHOSPHATE, METHOD FOR PREPARING THE SAME, AND ELECTROCHEMICAL DEVICE USING THE SAME - The invention provides an anion-deficient lithium transition-metal phosphate as an electrode-active material, which is represented by the chemical formula Li | 01-26-2012 |
20120021289 | LITHIUM SECONDARY BATTERY - A lithium secondary battery ( | 01-26-2012 |
20120034525 | Positive Electrode Active Material For Lithium Ion Battery - Disclosed is a positive electrode active material that provides an improved capacity density. Specifically disclosed is a positive electrode active material for a lithium ion battery with a layered structure represented by Li | 02-09-2012 |
20120045693 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the same. The negative active material includes secondary particles including assembled primary particles of a compound represented by the following Chemical Formula 1, and has a specific surface area at 2 m | 02-23-2012 |
20120045694 | CATHODE, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE CATHODE - A cathode, a method of preparing the same, and a lithium battery including the cathode. The cathode includes: a current collector; a first cathode active material layer disposed on the current collector; and a second cathode active material layer disposed on the first cathode active material layer, wherein the first cathode active material layer comprises a lithium transition metal oxide having a layered structure, and the second cathode active material layer comprises a lithium transition metal oxide having a spinel structure and an average working potential of 4.5 V or more. | 02-23-2012 |
20120064408 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Provided is a positive active material for a lithium rechargeable battery that includes primary particles including a compound being capable of intercalating and deintercalating lithium, and secondary particles including the primary particles gathered with one another, wherein the secondary particles have a void core structure. A method of preparing the same and a lithium rechargeable battery including the same are also provided. | 03-15-2012 |
20120082895 | Negative electrode active material for lithium secondary battery and negative electrode for lithium secondary battery - The present invention relates to a negative electrode active material for a lithium secondary battery, which has a composition containing Si in an amount of from 30 to 65% by mass and has a two phase matrix structure including an Sn—Cu based alloy matrix having an Sn content of 50% by mass or more, Si crystallites dispersed in the Sn—Cu based alloy matrix and an Si—X based alloy crystallized so as to at least partially cover the Si crystallites, in which X is at least one element selected from Fe, Ni and Co and is added in the Si—X based alloy in an amount of 1% by mass or more. | 04-05-2012 |
20120082896 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte. A mixture containing a zinc-containing alloy represented by MZn | 04-05-2012 |
20120121983 | Lithium Deposited Anode for a Lithium Second Battery and Its Manufacturing Method - The present invention relates to a lithium deposited anode for a lithium secondary battery and a method for preparing the same, and more particularly, to an anode suitable for a lithium secondary battery which limits dendrite growth only inside the concave portion of the silicon substrate during a battery is charged/discharged by depositing lithium as an active material only on the deeply caved concave portion of an anode current collector of which a micro-size patterned silicon substrate has conductivity provided by a metal, and its manufacturing method. | 05-17-2012 |
20120121984 | ALKALINE COLLECTOR ANODE - An alkaline battery includes a cathode, an alkaline electrolyte, and a copper-based anode which reduces hydrogen gassing without a protective coating or plating to less than 50% of the gas production observed using tin-plated 260 brass. An alloy for an anode which reduces hydrogen gassing without a protective coating or plating to less than 50% of the gas production observed using tin-plated 260 brass includes 0.01% to 9.0% tin, no more than 1% of phosphorus, no more than 1% of incidental elements and impurities, and the balance copper, in wt %. Another alloy for an anode which reduces hydrogen gassing without a protective coating or plating to less than 50% of the gas production observed using tin-plated 260 brass includes 1.0% to 40% zinc, about 0.01% to 5.0% tin, no more than 1% of phosphorus, no more than 1% of incidental elements and impurities, and the balance copper, in wt %. | 05-17-2012 |
20120129049 | METHOD OF MAKING SILICON ANODE MATERIAL FOR RECHARGEABLE CELLS - A method of forming a silicon anode material for rechargeable cells includes providing a metal matrix that includes no more than 30 wt % of silicon, including silicon structures dispersed therein. The metal matrix is at least partially etched to at least partially isolate the silicon structures. | 05-24-2012 |
20120135309 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR MANUFACTURING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed is an positive active material for a rechargeable lithium battery that includes an olivine-type composite oxide; and a metal or an alloy thereof adhered to a surface of the olivine-type composite oxide, wherein the metal or the alloy is selected from the group consisting of germanium (Ge), zinc (Zn), gallium (Ga), and a combination thereof. | 05-31-2012 |
20120141873 | POSITIVE ACTIVE MATERIAL MANUFACTURING METHOD THEREOF, AND ELECTRODE AND LITHIUM BATTERY CONTAINING THE SAME - In one aspect, a positive active material is provided that may have increased thermal stability and resistance to capability deterioration due to repeated charging and discharging, a method of manufacturing the same, and a lithium battery that includes the positive active material. | 06-07-2012 |
20120141874 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY - Disclosed is a positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive active material includes a carbon material having a structure with “n” polycyclic nano sheets, wherein “n” is an integer of 1 to 30 with hexagonal rings having six carbon atoms condensed and substantially aligned in a plane, the polycyclic nano sheets are laminated in a vertical direction to the plane; and a lithium-containing olivine-based compound attached to the surface of the carbon material is formed with a carbon-coating layer on its surface. | 06-07-2012 |
20120141875 | POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY - Provided is a secondary battery capable of improving charge-discharge characteristics. A positive electrode active material layer of a positive electrode has a positive electrode active material and a positive electrode conductive agent. The positive electrode active material is a high-voltage operating positive electrode material whose operating voltage is equal to or more than 4.5 V on a lithium metal basis. The positive electrode conductive agent contains an amorphous carbon material and a crystalline carbon material, and an interplanar spacing for lattice plane (002), a specific surface area, and a content in the positive electrode active material layer, thereof are so normalized as to be in predetermined ranges, respectively. | 06-07-2012 |
20120171570 | ELECTRODE COMPOSITE MATERIAL AND LITHIUM ION BATTERY USING THE SAME - The present disclosure relates to an electrode composite material. The electrode composite material includes a number of electrode composite material particles. Each of the plurality of electrode composite material particles includes an electrode active material particle and a doped aluminum phosphate layer coated on a surface of the electrode active material particle. A material of the doped aluminum phosphate layer is a semiconducting doped aluminum phosphate. | 07-05-2012 |
20120202119 | ACTIVE MATERIAL FOR BATTERY AND BATTERY - A main object of the present invention is to an active material for battery having a high thermal stability and a low electric potential. The object is attained by providing the active material for battery contains an Y element, a Ba element, a Cu element, and an O element and contains a YBa | 08-09-2012 |
20120219860 | HETERO-NANOSTRUCTURE MATERIALS FOR USE IN ENERGY-STORAGE DEVICES AND METHODS OF FABRICATING SAME - The embodiments disclosed herein relate to hetero-nano structure materials for use in energy-storage devices, and more particularly to the fabrication of hetero-nanostructure materials and the use of the hetero-nano structure materials as battery electrodes. In an embodiment, a Si/TiSi | 08-30-2012 |
20120225354 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING SAME AND LITHIUM SECONDARY BATTERY INCLUDING SAME - Disclosed are a positive active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the same. In particular, the positive active material has a carbon sheet having a structure including 1 to 200 polycyclic nano sheets comprising a plurality of hexagonal rings each having six carbon atoms condensed and substantially aligned in a plane containing the hexagonal rings, the polycyclic nano sheets layered in a vertical direction to the plane containing the hexagonal rings; and an olivine-based compound particle disposed on the surface of the carbon sheet. | 09-06-2012 |
20120264018 | COMPOSITE POSITIVE ELECTRODE MATERIAL WITH CORE-SHELL STRUCTURE FOR LITHIUM ION BATTERIES AND PREPARING METHOD THEREOF - A composite positive electrode material with a core-shell structure for a lithium ion battery consists of a core active material and a shell active material. The core active material is a lithium iron phosphate or a lithium manganate, and the shell active material is a composite lithium iron phosphate with carbon. The carbon is one or more of carbon nanotube, superfine conductive carbon black and amorphous carbon material. The composite positive electrode material includes from 65% to 99% core active material and from 1% to 35% shell active material, based on the total weight of the composite positive electrode material. The composite positive electrode material has stable property and excellent electrochemistry performance. The lithium ion battery made with the material has higher charge-discharge capacity, excellent cycle performance. It can be charged quickly and discharged at high rate. A preparing method for the composite positive electrode material is also provided. | 10-18-2012 |
20120282523 | CATHODE COMPOSITIONS FOR LITHIUM-ION BATTERIES - A lithium-ion battery has (a) an anode; (b) a cathode having a cathode composition of the formula Li[M | 11-08-2012 |
20120321956 | Positive-Electrode Active Material For Lithium Ion Battery, Positive Electrode For Lithium Ion Battery, And Lithium Ion Battery - The present invention provides a positive electrode active material for a lithium ion battery having good battery performance can be provided. The positive electrode active material for a lithium ion battery is represented by; | 12-20-2012 |
20120328946 | LITHIUM ION BATTERIES USING DISCRETE CARBON NANOTUBES, METHODS FOR PRODUCTION THEREOF AND PRODUCTS OBTAINED THEREFROM - Compositions, and methods of obtaining them, useful for lithium ion batteries comprising discrete oxidized carbon nanotubes having attached to their surface lithium ion active materials in the form of nanometer sized crystals or layers. The composition can further comprise graphene or oxygenated graphene. | 12-27-2012 |
20130004847 | HIGH ENERGY LITHIUM ION BATTERIES WITH PARTICULAR NEGATIVE ELECTRODE COMPOSITIONS - Combinations of materials are described in which high energy density active materials for negative electrodes of lithium ion batteries. In general, metal alloy/intermetallic compositions can provide the high energy density. These materials can have moderate volume changes upon cycling in a lithium ion battery. The volume changes can be accommodated with less degradation upon cycling through the combination with highly porous electrically conductive materials, such as highly porous carbon and/or foamed current collectors. Whether or not combined with a highly porous electrically conductive material, metal alloy/intermetallic compositions with an average particle size of no more than a micron can be advantageously used in the negative electrodes to improve cycling properties. | 01-03-2013 |
20130017446 | ENERGY STORAGE DEVICE - An energy storage device comprising an anode, electrolyte, and cathode is provided. The cathode comprises a plurality of granules comprising a support material, an active electrode metal, and a salt material, such that the cathode has a granule packing density equal to or greater than about 2 g/cc. A cathode comprising greater than about 10 volume % total metallic content in a charged state of the cathode is also provided. | 01-17-2013 |
20130022872 | CATHODE ACTIVE MATERIAL COMPRISING LITHIUM MANGANESE OXIDE CAPABLE OF PROVIDING EXCELLENT CHARGE-DISCHARGE CHARACTERISTICS AT 3V REGION AS WELL AS 4V REGION - Disclosed herein is a cathode active material including a lithium manganese oxide, in which the lithium manganese oxide has a spinel structure with a predetermined constitutional composition represented by Formula 1 described in the detailed description, wherein a conductive material is applied to the surface of lithium manganese oxide particles, so as to exhibit charge-discharge properties in the range of 2.5 to 3.5V as well as in the 4V region. | 01-24-2013 |
20130029224 | LITHIUM ELECTROCHEMICAL GENERATOR COMPRISING TWO TYPES OF DISTINCT ELECTROCHEMICAL CELLS - An electrochemical generator comprising a first type of electrochemical cell, a so-called <> cell and a second type of electrochemical cell a so-called <> cell is provided. | 01-31-2013 |
20130029225 | ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC DEVICE - A secondary battery includes: a cathode including an active material; an anode; and an electrolytic solution. The active material has a composition represented by Formula (1) described below. A median diameter (D90) of the active material is from about 10.5 micrometers to about 60 micrometers both inclusive, the median diameter (D90) being measured by a laser diffraction method. A half bandwidth (2θ) of a diffraction peak corresponding to a (020) crystal plane of the active material is from about 0.15 degrees to about 0.24 degrees both inclusive, the half bandwidth (2θ) being measured by an X-ray diffraction method. | 01-31-2013 |
20130029226 | 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 carbon (C) is coated on particle surfaces of the lithium iron phosphate, wherein, when a powder of the lithium iron phosphate is dispersed in water, water is removed from the resulting dispersion and the resulting lithium iron phosphate residue is quantitatively analyzed, a ratio of the carbon-released lithium iron phosphate with respect to the total weight of the carbon-coated lithium iron phosphate is 0.005% by weight or less. Advantageously, the olivine-type lithium iron phosphate is not readily separated through uniform thin film coating on the surface of the lithium iron phosphate and exhibits superior conductivity and density, since carbon is coated on particle surfaces of lithium iron phosphate in a state in which the amount of carbon released in water is considerably small. | 01-31-2013 |
20130034776 | LITHIUM IRON PHOSPHATE CONTAINING SULFUR COMPOUND BASED UPON SULFIDE BOND 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, a sulfur compound with a sulfide bond is contained, as an impurity, in the lithium iron phosphate particles, and carbon (C) is coated on particle surfaces of the lithium iron phosphate: | 02-07-2013 |
20130040200 | LITHIUM SECONDARY BATTERY AND ANODE THEREFOR - The present invention relates to an anode of a lithium secondary battery containing a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a layer made of Ni | 02-14-2013 |
20130052535 | LITHIUM ION SECONDARY BATTERY ACTIVE MATERIAL, LITHIUM ION SECONDARY BATTERY ELECTRODE, LITHIUM ION SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRIC POWER TOOL, ELECTRIC VEHICLE, and POWER STORAGE SYSTEM - A lithium ion secondary battery capable of improving the lithium ion input-output characteristics. An active material capable of storing and releasing lithium ions is a Li complex oxide or a Li complex oxoacid salt. A plurality of primary particles have a particle size distribution with 1 nm02-28-2013 | |
20130084500 | POSITIVE ELECTRODE MATERIAL - A positive-electrode material includes lithium vanadium phosphate particles having an average primary particle diameter from 0.3 μm to 2.6 μm and crystallite sizes from 24 nm to 33 nm. The lithium vanadium phosphate particles are coated with a conductive carbon of a range of 0.5 mass % to 2.4 mass % with respect to a total lithium vanadium phosphate particles. | 04-04-2013 |
20130101899 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - There is provided a nonaqueous electrolyte secondary battery having high capacity in which the reduction in the capacity of the battery due to the irreversible capacity in the first charge and discharge is suppressed using a high capacity positive electrode. The nonaqueous electrolyte secondary battery according to the exemplary embodiment includes a positive electrode and a negative electrode including at least one negative electrode active material selected from the group consisting of Si, a Si oxide and carbon, wherein the positive electrode includes a positive electrode active material including an oxide capable of absorbing and releasing lithium and a transition metal oxide, the transition metal oxide being represented by Li | 04-25-2013 |
20130122370 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CONTAINING PHOSPHATE FLUORIDE AND PREPARATION METHOD THEREOF - Provided is a cathode active material for lithium secondary battery containing the compound of Formula 1 doped or coated with phosphate fluoride, prepared by adding phosphate fluoride to the precursor compound and subjecting to sintering and heat-treatment process, which has improved lifecycle and stability so that it can be used to improve efficiency of lithium secondary battery: | 05-16-2013 |
20130122371 | LITHIUM SECONDARY BATTERY - To provide a lithium secondary battery excellent in the life characteristic and the power density. A lithium secondary battery, comprising: a positive electrode capable of intercalating and deintercalating lithium; and an negative electrode capable of intercalating and deintercalating lithium, wherein the positive electrode contains a manganese-containing positive electrode active material of a spinel structure and an oxide that coats the surface of this positive electrode active material, wherein the oxide contains a metallic element, wherein the metallic element forms a solid solution with the positive electrode active material, and wherein the atomic concentration of the metallic element is approximately 0 at depths of from 50 to 100 nm from an external surface of the negative electrode. | 05-16-2013 |
20130136985 | ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS - A secondary battery includes: a cathode; an anode; and an electrolytic solution. The cathode includes a lithium composite oxide, a first compound, and a second compound. The lithium composite oxide includes lithium (Li) and a transition metal element as constituent elements. The first compound includes a first metal element different from the transition metal element as a constituent element, the first compound existing on a surface and inside of the lithium composite oxide. The second compound includes a second metal element different from the first metal element as a constituent element, the second compound existing on the surface of the lithium composite oxide. | 05-30-2013 |
20130136986 | Submicron Sized Silicon Powder with Low Oxygen Content - A submicron sized Si based powder having an average primary particle size between 20 nm and 200 nm, wherein the powder has a surface layer comprising SiO | 05-30-2013 |
20130136987 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - Provided is a lithium ion positive electrode active material for a secondary battery that can realize a high operating voltage and a high capacity while suppressing capacity drop with cycles by using a low-cost material. A positive electrode active material for a secondary battery, which is a lithium manganese composite oxide represented by the following general formula (I) | 05-30-2013 |
20130136988 | NEGATIVE ELECTRODE FOR NON-AQUEOUS SECONDARY BATTERY, AND A NON-AQUEOUS SECONDARY BATTERY - [Objectives] The present invention provides a non-aqueous secondary battery in which a material containing Si and O as constituent elements is used in a negative electrode. The present invention provides a non-aqueous secondary battery having good charge discharge cycle characteristics, and suppressing the battery swelling associated with the charge and the discharge. Also, the present invention relates to a negative electrode that can provide the non-aqueous secondary battery. [Solution] The negative electrode includes a negative electrode active material, including a composite of a material containing Si and O as constitution elements (atom ratio x of O to Si is 0.5≦x≦1.5) in combination with a carbon material, and graphite. The graphite has an average particle diameter dg(μm) of 4 to 20 μm. The material containing Si and O as constitution elements has an average particle diameter ds(μm) of 1 μm or more. The ratio ds/dg (i.e., ds to dg) is 0.05 to 1. The material containing Si and O as constitution elements has a crystallite diameter of 50 nm or less, the crystallite diameter is calculated from a half width at a (220) plane of Si obtained by an X-ray diffraction method, using Scherrer Formula. In 100 mass % of the composite of the material containing Si and O as constitution elements, and the carbon material, a ratio of the material containing Si and O as constitution elements is 70 to 95 mass %. | 05-30-2013 |
20130143118 | NEGATIVE ELECTRODE ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, a negative electrode active material includes a compound having a crystal structure of monoclinic titanium dioxide. The compound has a highest intensity peak detected by an X-ray powder diffractometry using a Cu-Kα radiation source. The highest intensity peak is a peak of a (001) plane, (002) plane, or (003) plane. A half-width (2θ) of the highest intensity peak falls within a range of 0.5 degree to 4 degrees. | 06-06-2013 |
20130143119 | ANODE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE ANODE ACTIVE MATERIAL - An anode active material for a lithium rechargeable battery, the anode active material including: a base material which is alloyable with lithium and a metal nitride disposed on the base material. | 06-06-2013 |
20130143120 | ANODE MATERIAL HAVING A UNIFORM METAL-SEMICONDUCTOR ALLOY LAYER - The present invention relates to methods for producing anode materials for use in nonaqueous electrolyte secondary batteries. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a solution containing metals ions and a dissolution component. When the anode material is contacted with the solution, the dissolution component dissolves a part of the semiconductor material in the anode material and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer. The anode material of the present invention can be in a monolithic form or a particle form. When the anode material is in a particle form, the particulate anode material can be further shaped and sintered to agglomerate the particulate anode material. | 06-06-2013 |
20130143121 | Positive Electrode Active Material For Lithium-Ion Battery, A Positive Electrode For Lithium-Ion Battery, And Lithium-Ion Battery - The present invention provides a positive electrode active material for lithium ion batteries having excellent battery property. | 06-06-2013 |
20130183583 | METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY AND LITHIUM SECONDARY BATTERY USING SAME - The present invention provides a method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of:
| 07-18-2013 |
20130183584 | LITHIUM-SILICATE-BASED COMPOUND AND PRODUCTION PROCESS FOR THE SAME - A production process for lithium-silicate-based compound is characterized in that:
| 07-18-2013 |
20130196232 | MATERIAL FOR LITHIUM SECONDARY BATTERY OF HIGH PERFORMANCE - Provided is a lithium mixed transition metal oxide having a composition represented by Formula I of Li | 08-01-2013 |
20130224595 | CARBON COATED LITHIUM TRANSITION METAL PHOSPHATE AND PROCESS FOR ITS MANUFACTURE - The present invention relates to a particulate lithium transition metal phosphate with a homogeneous carbon coating deposited from the gas phase with as well as a process for its manufacture. The invention further relates the use of a carbon coated lithium transition metal phosphate as active material in an electrode, especially in a cathode. | 08-29-2013 |
20130224596 | SECONDARY CELL - A secondary cell is provided that enables cost reduction and stable operation with a simple configuration and greatly exceeds the capacity of a lithium-ion cell. In a secondary cell, a conductive first electrode is formed on a substrate. An n-type metal oxide semiconductor layer, a charging layer for charging energy, a p-type metal oxide semiconductor layer, and a second electrode are laminated. The charging layer is filled with an n-type metal oxide semiconductor of fine particles. By a photoexcited structural change phenomenon caused by ultraviolet irradiation, a new energy level is formed in a band gap of the n-type metal oxide semiconductor. An electron is captured at the newly formed energy level, thereby charging energy. The charging layer is charged by connecting a power source between the first electrode and the second electrode. It is also possible to charge energy by light, using a transparent electrode. | 08-29-2013 |
20130244112 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME - The present invention relates to a positive electrode active material for a lithium secondary battery having improved thermal stability, a method for producing the positive electrode active material, and a lithium secondary battery containing the same. The positive electrode active material may be represented by the following Chemical Formula 1 and contain particles having an average particle size of 200 nm to 1 μm, wherein the surfaces of the particles are coated with a uniform carbon coating layer. | 09-19-2013 |
20130244113 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME AND BATTERY - A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode ( | 09-19-2013 |
20130252105 | POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY USING POSITIVE ELECTRODE ACTIVE MATERIAL - Provided are a positive electrode active material, a method of preparing the same, and a lithium secondary battery using the positive electrode active material, and more particularly, a positive electrode active material in which a surface of layer-structured lithium transition metal composite oxide is coated with one or more indium-based compounds selected from the group consisting of indium oxides and alloys including indium, a method of preparing the positive electrode active material, and a lithium secondary battery using the positive electrode active material. According to the present disclosure, degradation of cycle characteristics according to repetitive discharge of a battery may be prevented and thermal stability and rate characteristics may be improved. | 09-26-2013 |
20130252106 | NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY, AND POSITIVE ELECTRODE AND NEGATIVE ELECTRODE USED IN THE SAME - Provided is a nonaqueous electrolytic solution secondary battery having a high energy density, and a positive electrode and a negative electrode used therefor. The nonaqueous electrolytic solution secondary battery includes a positive electrode and a negative electrode, wherein: the negative electrode contains a negative electrode active material having an initial charge/discharge efficiency of 75% or less when charged and discharged by employing metallic Li as a ocounter electrode; and the positive electrode contains a metal oxide (X) represented by A | 09-26-2013 |
20130260245 | ELECTRODE MATERIAL AND METHOD FOR PRODUCING THE SAME - The present invention provides an electrode material in which unevenness in a supporting amount of a carbonaceous film is less when using an electrode-active material having a carbonaceous film on a surface thereof as the electrode material, and which is capable of improving conductivity, and a method for producing the electrode material. The electrode material includes an aggregate formed by aggregating an electrode-active material in which a carbonaceous film is formed on a surface. In the electrode material, an average particle size of the aggregate is 0.5 to 100 μm, a volume density of the aggregate is 50 to 80 vol % of a volume density in a case in which the aggregate is a solid, and 80% or more of the surface of the electrode-active material is covered with the carbonaceous film. Alternatively, the electrode material includes an aggregate formed by aggregating electrode-active material particles in which a carbonaceous film is formed on a surface. In the electrode material, an average particle size of the aggregate is 0.5 to 100 μm, a pore size (D50) when an accumulated volume percentage of a pore size distribution of the aggregate is 50% is 0.1 to 0.2 μm, and porosity of the aggregate is 15 to 50 vol % with respect to a volume in a case in which the aggregate is a solid. | 10-03-2013 |
20130266865 | NEGATIVE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE MATERIAL, AND METHOD FOR MANUFACTURING THE MATERIAL - A negative active material having controlled particle size distribution of silicon nanoparticles in a silicon-based alloy, a lithium battery including the negative active material, and a method of manufacturing the negative active material are disclosed. The negative active material may improve capacity and lifespan characteristics by inhibiting (or reducing) volumetric expansion of the silicon-based alloy. The negative active material may include a silicon-based alloy including: a silicon alloy-based matrix; and silicon nanoparticles distributed in the silicon alloy-based matrix, wherein a particle size distribution of the silicon nanoparticles satisfies D10≧10 nm and D90≦75 nm. | 10-10-2013 |
20130266866 | ENERGY STORAGE DEVICE - In an energy storage device including a positive electrode plate and a negative electrode plate that are insulated from each other with a separator interposed therebetween, and a non-aqueous electrolyte, the separator includes a base material layer and a coating layer that is disposed on at least one surface of the base material layer, and the separator has an air permeability of the base material layer of 25 (sec/100 cc) or greater and 250 (sec/100 cc) or less, a porosity of the base material layer of 45% or greater, an air permeability of an interface between the base material layer and the coating layer of 15 (sec/100 cc) or less, and an air permeability of the coating layer of 15 (sec/100 cc) or less. | 10-10-2013 |
20130273426 | SECONDARY BATTERY HAVING IMPROVED SAFETY - Disclosed is a secondary battery comprising an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode, the secondary battery comprising a HF scavenger. | 10-17-2013 |
20130273427 | SECONDARY BATTERY HAVING IMPROVED SAFETY - Disclosed is a secondary battery comprising an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode, the secondary battery comprising a moisture scavenger. | 10-17-2013 |
20130295461 | NANOPOROUS CERAMIC COMPOSITE METAL - Since pseudo-capacitance transition metal oxides (for example, MnO | 11-07-2013 |
20130302683 | COMPOSITE METAL PRECURSOR, ELECTRODE ACTIVE MATERIAL PREPARED FROM THE SAME, POSITIVE ELECTRODE INCLUDING THE SAME, AND LITHIUM SECONDARY BATTERY EMPLOYING THE SAME - A composite metal precursor including a composite metal hydroxide represented by Formula 1 below, wherein an amount of magnesium (Mg) in the composite metal hydroxide is less than or equal to 0.005 wt %, an electrode active material formed from the same, a positive electrode including the same, and a lithium secondary battery employing the same: | 11-14-2013 |
20130302684 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES, AND LITHIUM ION BATTERY - A lithium-ion battery cathode material includes a composite of sulfur and porous carbon, and glass particles and/or glass ceramic particles that satisfy a composition represented by the following formula (1), | 11-14-2013 |
20130316239 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERIES, POSITIVE ELECTRODE FOR LITHIUM ION BATTERIES, AND LITHIUM ION BATTERY - The present invention provides a positive electrode active material for lithium ion batteries having satisfactory battery characteristics. The positive electrode active material for lithium ion batteries, is represented by the following composition formula: | 11-28-2013 |
20130330623 | ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC APPARATUS - (A) A cathode active material of a cathode includes a lithium phosphate compound represented by Li | 12-12-2013 |
20130337328 | NONAQUEOUS ELECTROLYTIC SOLUTION CONTAINING MAGNESIUM IONS, AND ELECTROCHEMICAL DEVICE USING THE SAME - A nonaqueous electrolytic solution containing magnesium ions which shows excellent electrochemical characteristics and which can be manufactured in a general manufacturing environment such as a dry room, and an electrochemical device using the same are provided. A Mg battery has a positive-electrode can | 12-19-2013 |
20140017566 | LITHIUM ION SECONDARY BATTERY ACTIVE MATERIAL, LITHIUM ION SECONDARY BATTERY ELECTRODE, LITHIUM ION SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRONIC POWER TOOL, ELECTRIC VEHICLE, AND POWER STORAGE SYSTEM - A lithium ion secondary battery includes: a positive electrode; a negative electrode; and an electrolytic solution, at least one of the positive electrode and the negative electrode being capable of storing and releasing lithium ions, and containing an active material that satisfies predetermined conditions. | 01-16-2014 |
20140017567 | ANODE ACTIVE MATERIAL HAVING HIGH DENSITY AND PREPARATION METHOD THEREOF - Provided is an anode active material including lithium metal oxide particles having an internal porosity ranging from 3% to 8% and an average particle diameter (D | 01-16-2014 |
20140023928 | ANODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - An anode active material for a lithium secondary battery having a high capacity and a high efficiency of charge discharge characteristics. The anode active material includes a silicon mono-phase and an alloy phase formed of silicon with a metal element at least one selected from the group consisting of Ti, Ni, Cu, Fe, Mn, Al, Cr, Co, and Zn. The anode active material is a powder in which the silicon mono-phase is uniformly distributed in a matrix of the alloy phase, has particle size distribution defined as D0.1 and D0.9, and the value of D0.1-D0.9 is in a range from about 3 μm to about 15 μm. | 01-23-2014 |
20140038052 | POSITIVE ACTIVE MATERIAL AND POSITIVE ELECTRODE AND LITHIUM BATTERY INCLUDING POSITIVE ACTIVE MATERIAL - A positive active material and a lithium battery including the positive active material. The positive active material includes a large diameter active material and a small diameter active material, wherein the small diameter active material includes a Ni-based lithium-transition metal composite oxide and a coating layer including a Mn-containing compound on at least a portion of the surface thereof. | 02-06-2014 |
20140045067 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are a positive active material for a rechargeable lithium battery that includes: a core including a lithium metal composite oxide having a layered structure; and a shell including a lithium metal composite oxide having a layered structure and having a different composition from the core, a lithium metal composite oxide having a spinel structure, or a combination thereof, wherein the shell is positioned on the surface of the core, a method of preparing the same, and a rechargeable lithium battery including the same. | 02-13-2014 |
20140050984 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY COMPRISING THE MATERIAL, AND METHOD OF PREPARING THE SAME - A composite anode active material, an anode and a lithium battery each including the composite anode active material, and a method of preparing the composite anode active material. The composite anode active material includes a composite core, and a coating layer covering at least a region of the composite core, wherein the composite core includes a carbonaceous substrate and a metal/semi-metal nanostructure on the carbonaceous substrate, the coating layer is more predominant on the nanostructure than on the carbonaceous substrate, and the coating layer includes a metal oxide. | 02-20-2014 |
20140050985 | RECHARGEABLE LITHIUM BATTERY - In an aspect, a rechargeable lithium battery including a negative electrode including a silicon-based negative active material is disclosed. | 02-20-2014 |
20140057175 | CATHODE ACTIVE MATERIALS FOR LITHIUM SECONDARY BATTERY AND PREPARATION METHOD THEREOF - Provided is a cathode active material for a lithium secondary battery and a method for preparing the same. The cathode active material for a lithium secondary battery allows a lithium secondary battery to realize high capacity and to maintain maximum capacity even at high voltage, prevents a drop in capacity during repeated charge/discharge cycles, and improves the lifespan of a lithium secondary battery. | 02-27-2014 |
20140057176 | SILICON-BASED NEGATIVE ACTIVE MATERIAL, PREPARING METHOD OF PREPARING SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A silicon-based negative active material that includes a core including silicon oxide represented by SiO | 02-27-2014 |
20140057177 | COMPOSITE PRECURSOR, COMPOSITE PREPARED THEREFROM, METHOD OF PREPARING THE COMPOSITE, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE COMPOSITE, AND LITHIUM SECONDARY BATTERY EMPLOYING THE POSITIVE ELECTRODE - A composite precursor is represented by Formula 1, and includes primary particles having an average particle diameter of about 1 nm to about 10 nm. A composite is prepared from the composite precursor. A method of preparing the composite includes mixing the composite precursor with a lithium compound to obtain a mixture, and thermally treating the mixture to obtain the composite. A positive electrode for a lithium secondary battery includes the composite, and a lithium secondary battery includes the positive electrode. | 02-27-2014 |
20140065480 | Positive-Electrode Active Material, Manufacturing Method Of The Same, And Nonaqueous Electrolyte Rechargeable Battery Having The Same - A positive-electrode active material for a non-aqueous electrolyte rechargeable battery includes a core portion and a shell portion. The core portion includes at least one of an inorganic oxide having a polyanionic structure and an inorganic compound oxide having a polyanionic structure and including a carbon. The shell portion includes a carbon and covers the core portion. The positive-electrode active material has a property that indicates a continuous pore distribution curve in a graph where a horizontal axis represents a pore diameter and a vertical axis represents a log differentiation pore volume. The positive-electrode active material is manufactured by wet-cracking the inorganic oxide or the inorganic compound oxide with an organic acid solution, and sintering a cracked substance in an inert atmosphere. | 03-06-2014 |
20140065481 | Positive-Electrode Active Material, Manufacturing Method Of The Same, And Nonaqueous Electrolyte Rechargeable Battery Having The Same - A positive-electrode active material for a non-aqueous electrolyte rechargeable battery includes a core portion and a shell portion. The core portion contains an inorganic oxide with a polyanionic structure. The shell portion coats the core portion. The shell portion contains a carbon and an inorganic accelerator that accelerates generation of the shell portion by the carbon. The content of the inorganic accelerator is 0.2 mass % or more of the inorganic oxide when the mass of the inorganic oxide is defined as 100%. | 03-06-2014 |
20140072874 | COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY INCLUDING THE COMPOSITE CATHODE ACTIVE MATERIAL, AND METHOD OF PREPARING THE COMPOSITE CATHODE ACTIVE MATERIAL - A composite cathode active material, a cathode including the same, a lithium battery including the cathode, and preparation method thereof are disclosed. The composite cathode active material includes: a core capable of intercalating and deintercalating lithium; and a crystalline coating layer disposed on at least part of a surface of the core, wherein the coating layer include a metal oxide. | 03-13-2014 |
20140087256 | CATHODE COMPOSITE MATERIAL, METHOD FOR MAKING THE SAME, AND LITHIUM ION BATTERY USING THE SAME - A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material. | 03-27-2014 |
20140087257 | CATHODE MATERIAL AND LITHIUM ION BATTERY THEREFROM - A new high performing lithium ion cell having new carbon based anode and new dual doped layered cathode materials. The anode is a self standing carbon fibrous material and the cathode is a dual doped Lithium cobalt oxide of general formula LiM | 03-27-2014 |
20140087258 | CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD OF PRODUCING SAID CATHODE MATERIAL - A cathode material for a lithium secondary battery, including fibrous carbon and a plurality of cathode active material particles bonded to a surface of the fibrous carbon. The cathode active material particles are composed of olivine-type LiMPO | 03-27-2014 |
20140099547 | SURFACE MODIFICATIONS FOR ELECTRODE COMPOSITIONS AND THEIR METHODS OF MAKING - Compositions and methods of making are provided for surface modified electrodes and batteries comprising the same. The compositions may comprise a base composition having an active material capable of intercalating the metal ions during a discharge cycle and deintercalating the metal ions during a charge cycle, wherein the active material is selected from the group consisting of LiCoO | 04-10-2014 |
20140099548 | METHOD OF PREPARING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY PREPARED BY METHOD, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed is a method of preparing a positive active material for a rechargeable lithium battery that includes mixing an iron source including a carbon source, a lithium source, and a phosphoric acid source to form a positive active material precursor for a rechargeable lithium battery, the positive active material precursor including a lithium iron phosphate precursor and a carbon precursor; pulverizing the positive active material precursor for a rechargeable lithium battery; and heat-treating the pulverized positive active material precursor for a rechargeable lithium battery. | 04-10-2014 |
20140099549 | High-capacity positive electrode active material - This disclosure provides a positive electrode active lithium-excess metal oxide with composition Li | 04-10-2014 |
20140106223 | METHODS FOR SURFACE COATING OF CATHODE MATERIAL LiNi0.5-XMn1.5MXO4 FOR LITHIUM-ION BATTERIES - A high-voltage lithium-ion battery cathode material includes LiNi | 04-17-2014 |
20140106224 | ELECTRODE MATERIAL, METHOD FOR PRODUCING THE SAME, ELECTRODE AND BATTERY - An electrode material containing an electrode active material, and a carbonaceous coating film which covers the electrode active material and contains sulfur; and an electrode material including a secondary particle including a plurality of primary particles as the electrode active material, wherein the primary particles are covered with a carbonaceous coating film so that the carbonaceous coating film is interposed between the primary particles and the carbonaceous coating film contains sulfur. | 04-17-2014 |
20140113191 | ELECTRODE MATERIAL FOR SECONDARY BATTERY, METHOD FOR PRODUCING ELECTRODE MATERIAL FOR SECONDARY BATTERY, AND SECONDARY BATTERY - An electrode material for a secondary battery includes crystal primary particles of an electrode active material which releases or absorbs cations of a monovalent or divalent metal when subjected to electrochemical oxidation or reduction and which has a crystal lattice in which the cations can move only in a one-dimensional movable direction during the process of oxidation or reduction. The electrode material also includes an ion-conductive substance and conductive carbon which coexist on the surface of the primary particles, in which the ion-conductive substance has a property which allows two or three-dimensional movement of the cations, and the cations are movable via a layer in which the ion-conductive substance and the conductive carbon coexist. | 04-24-2014 |
20140113192 | SILICON OXIDE, MAKING METHOD, NEGATIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - Particulate silicon oxide having a Cu content of 100-20,000 ppm, an Fe content of 20-1,000 ppm, an Al content of up to 1,000 ppm, an average particle size of 0.1-30 μm, and a BET specific surface area of 0.5-30 m | 04-24-2014 |
20140113193 | PROCESS FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY - To provide a process for producing a cathode active material for a lithium ion secondary battery, a cathode for a lithium ion secondary battery, and a lithium ion secondary battery. | 04-24-2014 |
20140113194 | PROCESS FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, CATHODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - To provide a cathode active material for a lithium ion secondary battery, and its production process. | 04-24-2014 |
20140120424 | NONAQUEOUS ELECTROLYTE ELECTRICITY STORAGE DEVICE AND PRODUCTION METHOD THEREOF - The present invention provides a nonaqueous electrolyte electricity storage device including a separator that can be produced by a method in which use of a solvent that places a large load on the environment can be avoided and in which control of parameters such as the pore diameter is relatively easy, the nonaqueous electrolyte electricity storage device being capable of trapping ions of metals that tend to form a complex other than lithium. The present invention is a nonaqueous electrolyte electricity storage device including a cathode, an anode, a separator disposed between the cathode and the anode, and an electrolyte having ion conductivity. The cathode and/or the anode is formed of a material containing at least one metal element selected from the group consisting of transition metals, aluminum, tin, and silicon. The separator includes a porous epoxy resin body having a porous structure with a specific surface area of 5 to 60 m | 05-01-2014 |
20140127580 | STRUCTURES INCLUDING POROUS GERMANIUM, METHODS OF MAKING, AND METHODS OF USE THEREOF - Embodiments of the present disclosure provide for a structure, methods of making the structure, methods of using the structure, and the like. In particular, the structure includes a porous germanium layer, where the porous germanium layer includes a porous network that improves the performance of the structure. | 05-08-2014 |
20140141331 | CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERIES INCLUDING THE SAME - The present invention relates to a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery including the same. Provided is a cathode active material composed of a lithium-excess lithium metal composite compound including Li | 05-22-2014 |
20140154575 | CYANOMETALLATE CATHODE BATTERY AND METHOD FOR FABRICATION - A method is provided for fabricating a cyanometallate cathode battery. The method provides a cathode of A | 06-05-2014 |
20140162124 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING IT, CATHODE, AND BATTERY - A cathode active material capable of increasing a capacity and improving high temperature characteristics or cycle characteristics, a method of manufacturing it, a cathode using the cathode active material, and a battery using the cathode active material are provided. In a cathode active material contained in a cathode, a coating layer is provided on at least part of complex oxide particle containing at least lithium (Li) and cobalt (Co). The coating layer is an oxide which contains lithium (Li) and at least one of nickel (Ni) and manganese (Mn). | 06-12-2014 |
20140162125 | ANODE MATERIALS FOR LITHIUM-ION BATTERIES - The current disclosure relates to an anode material with the general formula M | 06-12-2014 |
20140170493 | NANOSTRUCTURED MATERIALS FOR ELECTROCHEMICAL CONVERSION REACTIONS - The disclosure is related to battery systems. More specifically, embodiments of the disclosure provide a nanostructured conversion material for use as the active material in battery cathodes. In an implementation, a nanostructured conversion material is a glassy material and includes a metal material, one or more oxidizing species, and a reducing cation species mixed at a scale of less than 1 nm. The glassy conversion material is substantially homogeneous within a volume of 1000nm | 06-19-2014 |
20140178758 | DEVICE FOR PRODUCING AN ELECTRIC CURRENT AND METHOD FOR MAKING THE SAME - Disclosed is a device for producing an electric current and a method for making the same. The device for producing an electric current, comprising: an anode comprising a stack formed by alternately stacking of at least one Si layer and at least one carbon material layer, and a LiPON layer on the stack; a cathode; and an electrolyte between the anode and the cathode. | 06-26-2014 |
20140178759 | GRAPHENE-SUPPORTED METAL OXIDE MONOLITH - A composition comprising at least one graphene-supported metal oxide monolith, said monolith comprising a three-dimensional structure of graphene sheets crosslinked by covalent carbon bonds, wherein the graphene sheets are coated by at least one metal oxide such as iron oxide or titanium oxide. Also provided is an electrode comprising the aforementioned graphene-supported metal oxide monolith, wherein the electrode can be substantially free of any carbon-black and substantially free of any binder. | 06-26-2014 |
20140193714 | CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY INCLUDING CATHODE ACTIVE MATERIAL, AND METHOD OF PREPARING THE CATHODE ACTIVE MATERIAL - A cathode active material including a lithium metal oxide composite having a first domain and a second domain and represented by Formula 1: | 07-10-2014 |
20140234714 | NEGATIVE ACTIVE MATERIAL, AND NEGATIVE ELECTRODE AND LITHIUM BATTERY EACH INCLUDING THE NEGATIVE ACTIVE MATERIAL - A negative active material and a lithium battery are provided. The negative active material includes a composite core, and a coating layer formed on at least part of the composite core. The composite core includes a carbonaceous base and a metal/metalloid nanostructure disposed on the carbonaceous base. The coating layer includes a metal oxide coating layer and an amorphous carbonaceous coating layer. | 08-21-2014 |
20140234715 | PROTECTIVE COATINGS FOR CONVERSION MATERIAL CATHODES - Battery systems using coated conversion materials as the active material in battery cathodes are provided herein. Protective coatings may be an oxide, phosphate, or fluoride, and may be lithiated. The coating may selectively isolate the conversion material from the electrolyte. Methods for fabricating batteries and battery systems with coated conversion material are also provided herein. | 08-21-2014 |
20140272584 | METHOD FOR PRE-LITHIATION OF THE NEGATIVE ELECTRODE IN LITHIUM ION BATTERIES - A Li-ion battery is disclosed, the Li-ion battery including an anode, a cathode, a lithium donor formed from a Li-containing material, and an electrolyte in communication with the anode, the cathode, and the lithium donor. The lithium donor may be incorporated into the anode, incorporated into the cathode, a layer formed on either an anode side or a cathode side of a separator of the battery. The lithium donor is formed from Li-containing material insensitive to oxygen and aqueous moisture. | 09-18-2014 |
20140272585 | Electrode for an electrochemical energy store - An electrode for an electrochemical energy store, including an active material layer having an active material, a protective layer being at least partially applied to the active material, and the protective layer at least partially including a fluorophosphate-based material. Such an electrode offers a particularly high stability, even when high voltages are present. Also described is a method for manufacturing an electrode, to an electrochemical energy store and to the use of a fluorophosphate-based material for generating a protective layer for an active material of an electrode of an electrochemical energy store. | 09-18-2014 |
20140272586 | HIGH ENERGY MATERIALS FOR A BATTERY AND METHODS FOR MAKING AND USE - A method of forming an electrode active material by reacting a metal fluoride and a reactant. The reactant can be a metal oxide, metal phosphate, metal fluoride, or a precursors expected to decompose to oxides. The method includes a milling step and an annealing step. The method can alternately include a solution coating step. Also included is the composition formed following the method. | 09-18-2014 |
20140272587 | PRECURSOR PARTICLES OF LITHIUM COMPOSITE TRANSITION METAL OXIDE FOR LITHIUM SECONDARY BATTERY AND CATHODE ACTIVE MATERIAL COMPRISING THE SAME - Disclosed are precursor particles of a lithium composite transition metal oxide for lithium secondary batteries, wherein the precursor particles of a lithium composite transition metal oxide are composite transition metal hydroxide particles including at least two transition metals and having an average diameter of 1 μm to 8 μm, wherein the composite transition metal hydroxide particles exhibit monodisperse particle size distribution and have a coefficient of variation of 0.2 to 0.7, and a cathode active material including the same. | 09-18-2014 |
20140287309 | 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 | 09-25-2014 |
20140295273 | ANODE, LITHIUM BATTERY INCLUDING THE ANODE, AND METHOD OF PREPARING THE ANODE - An anode, a lithium battery including the anode, and a method of manufacturing the anode. The anode includes: an anode active material including a metal alloyable with lithium; and a metal-carbon composite conducting agent having a density of 3.0 grams per cubic centimeter or greater. | 10-02-2014 |
20140295274 | METHOD FOR PREPARING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING POSITIVE ACTIVE MATERIAL - A rechargeable lithium battery includes a non-aqueous electrolyte, a negative electrode including a silicon-based negative active material, and a positive active material including a compound represented by a Chemical Formula 1, Li | 10-02-2014 |
20140295275 | LITHIUM MANGANESE PHOSPHATE/CARBON NANOCOMPOSITES AS CATHODE ACTIVE MATERIALS FOR SECONDARY LITHIUM BATTERIES - The invention relates to a lithium manganese phosphate/carbon nanocomposite as cathode material for rechargeable electrochemical cells with the general formula Li | 10-02-2014 |
20140308583 | NANOCOMPOSITE ANODE MATERIALS FOR SODIUM-ION BATTERIES - The disclosure relates to an anode material for a sodium-ion battery having the general formula AO | 10-16-2014 |
20140315086 | Positively Charged Silicon for Lithium-Ion Batteries - This invention relates to a negative electrode material for lithium-ion batteries comprising silicon and having a chemically treated or coated surface influencing the zeta potential of the surface. The active material consists of particles or particles and wires comprising a core ( | 10-23-2014 |
20140322602 | ELECTRODE MATERIAL, ELECTRODE-FORMING PASTE, ELECTRODE PLATE, LITHIUM ION BATTERY, AND METHOD OF PRODUCING ELECTRODE MATERIAL - An electrode material includes surface-coated Li | 10-30-2014 |
20140322603 | NANOSTRUCTURED MATERIALS FOR ELECTROCHEMICAL CONVERSION REACTIONS - The disclosure is related to battery systems. More specifically, embodiments of the disclosure provide a nanostructured conversion material for use as the active material in battery cathodes. In an implementation, a nanostructured conversion material is a glassy material and includes a metal material, one or more oxidizing species, and a reducing cation species mixed at a scale of less than 1 nm. The glassy conversion material is substantially homogeneous within a volume of 1000 nm | 10-30-2014 |
20140329144 | ANODE AND BATTERY - An anode and battery including the anode capable of improving the cycle characteristics while securing the input and output characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The anode includes an anode active material layer on an anode current collector, wherein the anode active material layer includes an anode active material capable of intercalating and deintercalating an electrode reactant, wherein a thickness of the anode active material layer ranges from 60 μm to 120 μm, and wherein the anode active material includes a carbon material and at least part of a surface is covered by a covering, the covering including at least one of an alkali metal salt and an alkali earth metal salt. | 11-06-2014 |
20140335413 | ELECTRODE MATERIAL, PASTE, ELECTRODE PLATE, AND LITHIUM ION BATTERY - An electrode material includes Fe-containing olivine-structured Li | 11-13-2014 |
20140356714 | PROCESS FOR PREPARING A CORE-SHELL STRUCTURED LITHIATED MANGANESE OXIDE - The invention relates to a process for preparing a core-shell structured lithiated manganese oxide, comprising the steps of providing spinel LiM | 12-04-2014 |
20140356715 | COMPOSITE CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS, AND SECONDARY BATTERY, BATTERY MODULE, AND BATTERY PACK INCLUDING THE SAME - Provided is a composite cathode active material including layered lithium manganese oxide and lithium-containing metal oxide. | 12-04-2014 |
20140363736 | LITHIUM SECONDARY BATTERY INCLUDING MULTI-LAYERED ACTIVE MATERIAL LAYERS - A lithium secondary battery of the present invention may simultaneously improve high output and high capacity characteristics by including a first active material layer having high output characteristics and a second active material layer having high capacity characteristics respectively on a cathode collector and an anode collector. | 12-11-2014 |
20140370386 | Si-Based-Alloy Anode Material - Disclosed is a Si-based alloy anode material for lithium ion secondary batteries, including an alloy phase with a Si principal phase including Si and a compound phase including two or more elements, which includes a first additional element A selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb and Mg and a low-melting second additional element B selected from S, Se, Te, Sn, In, Ga, Pb, Bi, Zn, Al. This compound phase includes (i) a first compound phase including Si and the first additional element A; a second compound phase including the first additional element A and the second additional element B; and one or both of a third compound phase including two or more of the second additional elements B and a single phase of the second additional element B. | 12-18-2014 |
20140377655 | COMPOSITE CATHODE ACTIVE MATERIAL, METHOD OF PREPARING THE COMPOSITE CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM BATTERY EACH INCLUDING THE COMPOSITE CATHODE ACTIVE MATERIAL - A composite cathode active material, a method of preparing the 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 intercalatable material; and a garnet oxide, wherein an amount of the garnet oxide is about 1.9 wt % or less, based on a total weight of the composite cathode active material. | 12-25-2014 |
20140377656 | LITHIUM BATTERY HAVING HIGHER PERFORMANCE - Disclosed is a lithium secondary battery including an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode and an electrolyte, wherein the anode includes a lithium titanium oxide (LTO) as an anode active material, and the lithium secondary battery has a charge cut-off voltage of 3.3 to 4 V and, when the charge cut-off voltage is reached, the anode has a potential of 0.75 to 1.545 V within a range within which a potential of the cathode does not exceed 4.95 V. | 12-25-2014 |
20140377657 | Lithium Secondary Battery With Excellent Performance - Disclosed is a lithium secondary battery including: an electrode assembly including a cathode including a cathode mixture layer formed on a cathode current collector, an anode including an anode mixture layer formed on an anode current collector, and a separator disposed between the cathode and the anode; and an electrolyte, wherein the anode includes lithium titanium oxide (LTO) as an anode active material, and four planes of the cathode mixture layer have the same or greater length than four planes of the anode mixture layer and thus the cathode mixture layer has the same or greater area than the anode mixture layer. | 12-25-2014 |
20140377658 | METHOD OF MANUFACTURING ELECTRODE FOR LITHIUM SECONDARY BATTERY AND ELECTRODE MANUFACTURED USING THE SAME - Disclosed is a method of manufacturing an electrode for a secondary battery including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector. Provided are a method including surface-treating the current collector such that an aluminum oxide (Al | 12-25-2014 |
20150017535 | CATHODE ACTIVE MATERIAL, METHOD OF PREPARING THE CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM SECONDARY BATTERY INCLUDING THE CATHODE ACTIVE MATERIAL - A cathode active material, a preparation method thereof, and a cathode for a lithium secondary battery and a lithium secondary battery including the cathode active material, wherein the cathode active material includes a core active material represented by Formula 1 below; and a coating layer formed on a surface of the core active material, the coating layer including lithium gallium oxide: | 01-15-2015 |
20150017536 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a non-aqueous electrolyte secondary battery excellent in durability, the non-aqueous electrolyte secondary battery including a positive electrode active material, the surface of which is coated with a film formed of an inorganic solid electrolyte, wherein a change in volume of the positive electrode active material during charge and discharge is reduced to prevent deterioration of the film with which the surface of the positive electrode active material is coated. In a non-aqueous electrolyte secondary battery including a positive electrode active material, the surface of which is coated with a film formed of an inorganic solid electrolyte, the positive electrode active material is a lithium-containing composite oxide having a spinel structure, and contains at least one of Ti and Mg as an additional element. | 01-15-2015 |
20150044563 | COMPOSITE PRECURSOR, COMPOSITE PREPARED THEREFROM, A METHOD OF PREPARING A COMPOSITE PRECURSOR AND A COMPOSITE, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE SAME, AND LITHIUM SECONDARY BATTERY EMPLOYING THE SAME - A composite precursor represented by Formula 1, a composite prepared therefrom represented by Formula 2, a method of preparing a composite precursor and a composite, a positive electrode for lithium secondary battery including the same, and a lithium secondary battery employing the same. | 02-12-2015 |
20150056509 | NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND LITHIUM BATTERY INCLUDING NEGATIVE ACTIVE MATERIAL, AND METHOD OF MANUFACTURING NEGATIVE ACTIVE MATERIAL - A negative active material, a negative electrode and a lithium battery including the same, and a method of manufacturing the negative active material are disclosed. The negative active material includes a silicon-based alloy including Si, Al, and Cu. Since the silicon-based alloy includes AlCu and Al | 02-26-2015 |
20150064557 | CATHODE ACTIVE MATERIAL INCLUDING LITHIUM TRANSITION METAL PHOSPHATE PARTICLES, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided are a cathode active material including lithium transition metal phosphate particles, wherein the lithium transition metal phosphate particles include a first secondary particle formed by agglomeration of two or more first primary particles, and a second secondary particle formed by agglomeration of two or more second primary particles in the first secondary particle, and a method of preparing the same. Since the cathode active material according to an embodiment of the present invention may include first primary particles and second primary particles having different average particle diameters, the exfoliation of the cathode active material from a cathode collector may be minimized and performance characteristics, such as high output characteristics and an increase in available capacity, of a secondary battery may be further improved. In addition, since the first secondary particles are porous, the secondary particles are collapsed and fractured due to rolling when used in a cathode. | 03-05-2015 |
20150079472 | METHOD FOR MANUFACTURING SILICON FLAKES, SILICON-CONTAINING NEGATIVE ELECTRODE AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing silicon flakes includes steps as follows. A silicon material is contacted with a machining tool which includes at least one abrasive particle fixedly disposed thereon. The silicon material is scraped along a displacement path with respect to the machining tool to generate the silicon flakes having various particle sizes. | 03-19-2015 |
20150079473 | HIGH VOLTAGE POSITIVE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a cathode active material for high voltage and a lithium secondary battery including the same. More particularly, a cathode active material including spinel-type compound particles having a composition represented by Formula 1 below; and metal oxides or metal hydroxides present on surfaces of the spinel-type compound particles, and a lithium secondary battery including the same. | 03-19-2015 |
20150079474 | HIGH VOLTAGE POSITIVE ACTIVE MATERIAL AND METHOD FOR PREPARING THE SAME - Disclosed herein is a high voltage cathode active material and a method for preparing the same. The cathode active material includes particles of a spinel-type compound having a composition represented by Formula (1) and a carbon-based material present on surfaces of the particles of the spinel-type compound: | 03-19-2015 |
20150086871 | Nanostructured Battery Active Materials and Methods of Producing Same - Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided. | 03-26-2015 |
20150093640 | ELECTRODE MATERIAL, AND CAPACITOR AND SECONDARY BATTERY USING SAID ELECTRODE MATERIAL - An electrode material that is used as an electrode in an electric double layer capacitor, a lithium ion capacitor, and a lithium secondary battery and has a reduced internal resistance for improving output is provided. The electrode material is characterized in that a metal is filled into pores in a surface portion at one surface of a powder molded body containing at least an active material powder and a metal film is formed on the one surface. The electrode material can be formed by performing a plating treatment on the powder molded body. | 04-02-2015 |
20150093641 | Lithium Transition Metal Oxide Having Layered Structure - Provided is a lithium metal compound oxide having a layered structure, which is very excellent as a positive electrode active material of a battery that is mounted on, particularly, an electric vehicle or a hybrid vehicle. | 04-02-2015 |
20150093642 | ANODE ACTIVE MATERIAL AND BATTERY - Anode active materials, anodes, and batteries are provided. In one embodiment, an anode active material includes particles consisting essentially of a material selected from the group consisting of silicon and an alloy of silicon. An average degree of circularity of the particles is 90% or less. | 04-02-2015 |
20150099175 | ELECTRODE MATERIAL AND METHOD FOR PRODUCING THE SAME - The present invention provides an electrode material in which unevenness in a supporting amount of a carbonaceous film is less when using an electrode-active material having a carbonaceous film on a surface thereof as the electrode material, and which is capable of improving conductivity, and a method for producing the electrode material. The electrode material includes an aggregate formed by aggregating an electrode-active material in which a carbonaceous film is formed on a surface. In the electrode material, an average particle size of the aggregate is 0.5 to 100 μm, a volume density of the aggregate is 50 to 80 vol % of a volume density in a case in which the aggregate is a solid, and 80% or more of the surface of the electrode-active material is covered with the carbonaceous film. Alternatively, the electrode material includes an aggregate formed by aggregating electrode-active material particles in which a carbonaceous film is formed on a surface. In the electrode material, an average particle size of the aggregate is 0.5 to 100 μm, a pore size (D50) when an accumulated volume percentage of a pore size distribution of the aggregate is 50% is 0.1 to 0.2 μm, and porosity of the aggregate is 15 to 50 vol % with respect to a volume in a case in which the aggregate is a solid. | 04-09-2015 |
20150104706 | Ni-Mn COMPOSITE OXALATE POWDER, LITHIUM TRANSITION METAL COMPOSITE OXIDE POWDER AND LITHIUM ION SECONDARY BATTERY - The disclosure provides a Ni—Mn composite oxalate powder, including a plurality of biwedge octahedron particles represented by the general formula: Ni | 04-16-2015 |
20150104707 | CATHODE MATERIAL COMPOSITE HAVING IMPROVED CONDUCTIVITY, CATHODE AND ELECTROCHEMICAL DEVICE HAVING THE SAME - The present disclosure refers to a cathode material composite having improved conductivity, and a cathode and electrochemical device having the cathode material composite. In accordance with one embodiment of the present disclosure, a conductive polymer is positioned on the surface of a shell present in the form of a tetragonal structure in the lithium manganese oxide, thereby enhancing electrical conductivity to be highly involved in reaction around 3V, and providing a conductive path to improve the capacity, life and rate characteristics of an electrochemical device. | 04-16-2015 |
20150104708 | OXIDE CATHODE MATERIAL FOR LITHIUM ION BATTERY HAVING HIGH ENERGY DENSITY AND PREPARATION PROCESS THEREOF - Provided are a high energy density oxide anode material for lithium ion battery, preparation process and use thereof. Said anode material includes a main part of the anode material and a covering layer. Said main part includes a shell and a core inside the shell. The material of said core is Li | 04-16-2015 |
20150111104 | LITHIUM-SULFUR CELL - A method is described for manufacturing a lithium-sulfur cell or lithium-sulfur battery, in particular a solid-state lithium-sulfur cell or lithium-sulfur battery. A nanowire network is provided in a method step a) composed of an electron- and lithium ion-conducting ceramic mixed conductor or a mixed conductor precursor for forming an electron- and lithium ion-conducting ceramic mixed conductor. The nanowire network is coated with a lithium ion-conducting solid-state electrolyte layer in a method step b). The nanowire network is optionally infiltrated with sulfur in a method step c). A cathode current arrester is applied to the uncoated side of the nanowire network in a method step d). Moreover, a lithium-sulfur cell, a lithium-sulfur battery, and a mobile or stationary system are described as well. | 04-23-2015 |
20150118558 | ELECTRODE MATERIAL, ELECTRODE PLATE, LITHIUM ION BATTERY, MANUFACTURING METHOD FOR ELECTRODE MATERIAL, AND MANUFACTURING METHOD FOR ELECTRODE PLATE - An electrode material of the present invention includes surface-coated Li | 04-30-2015 |
20150125749 | Novel Phosphate Based Composite Anode Material, Preparation Method and Use Thereof - The present invention relates to a novel phosphate based composite anode material, preparation method and uses thereof. Specifically disclosed is a phosphate based composite cell anode material, the material having monoclinic and orthorhombic crystal lattice structures with the chemical formula of A | 05-07-2015 |
20150125750 | ELECTRODE PLATE AND ELECTRODE ASSEMBLY, STORAGE BATTERY, AND CAPACITOR COMPRISING ELECTRODE PLATE - An electrode plate and an electrode assembly, a storage battery, and a capacitor comprising the electrode plate are provided. The electrode plate consists of at least two positive plates or at least two negative plates and an insulating film sandwiched between the at least two positive plates or the at least two negative plates. The electrode plate can improve the electric field intensity, and the charge time of the storage battery comprising the electrode plate is greatly reduced when compared with that of a battery with an existing structure. | 05-07-2015 |
20150132651 | CATHODE ACTIVE MATERIAL FOR SECONDARY BATTERIES AND SECONDARY BATTERY INCLUDING THE SAME - Provided is a cathode active material including a complex coating layer, which includes M below, formed on a surface of the cathode active material through reaction of a lithium transition metal oxide represented by Formula 1 below with a coating precursor: | 05-14-2015 |
20150147649 | ANODE ACTIVE MATERIAL AND A LITHIUM SECONDARY BATTERY INCLUDING THE SAME - An anode active material for a lithium secondary battery, the anode active material including a metal silicide core, a silicon shell disposed on the core, and a metal nitride disposed on a surface of the silicon shell opposite the core. | 05-28-2015 |
20150147650 | ANTIMONY BASED ANODE MATERIAL FOR RECHARGEABLE BATTERIES AND PREPARATION METHOD - An antimony based anode material for a rechargeable battery comprises nanoparticles of composition SbM | 05-28-2015 |
20150295225 | COPPER-MODIFIED LITHIUM TITANATE AND USE THEREOF IN A LITHIUM-ION BATTERY - A modified lithium titanate compound represented by formula I: | 10-15-2015 |
20150311516 | BATTERY - A battery, including a cathode, an anode, an electrolyte; the cathode including a cathode active material capable of reversibly intercalating-deintercalating ions; the anode including an anode current collector that does not participate in the electrochemical reaction; the electrolyte including a solvent capable of dissolving solute, the solute being ionized to at least an active ions that can be reduced to a metallic state during a charge cycle and be oxidized from the metallic state to the dissolved ion state during a discharge cycle and/or an intercalation-deintercalation ions that can deintercalate from the cathode active material during the charge cycle and intercalate into the cathode active material during the discharge cycle; the anode further comprising an anode active material formed on the anode current collector capable of being oxidized and dissolved to active ion state during the discharge cycle. | 10-29-2015 |
20150311522 | POSITIVE ACTIVE MATERIAL FOR USE IN A LITHIUM ION BATTERY AND METHOD FOR PREPARING THE SAME - The present invention provides a positive active material for use in a lithium ion battery, a method for preparing the positive active material and a lithium ion battery containing the positive active material. The positive active material includes a core of lithium containing transition metal oxide represented by Formula Li | 10-29-2015 |
20150325853 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, NEGATIVE ELECTRODE, AND BATTERY - [Problem] In the case where a silicon substance having a high theoretical capacity as a negative electrode active material for a lithium ion secondary battery is used as a negative electrode active material, such a negative electrode active material is provided that has a high initial battery capacity and suffers less deterioration in performance even when many cycles of charge and discharge are repeated. A lithium ion secondary battery using the negative electrode active material is provided. | 11-12-2015 |
20150336803 | ACTIVE MATERIAL PRECURSOR AND METHOD OF PREPARING THE SAME - An active material precursor having a hollow structure is represented by Formula 1: | 11-26-2015 |
20150349326 | ENERGY STORAGE DEVICE - An energy storage device comprising: a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte, and an insulating layer disposed between the positive electrode and the separator, wherein the positive electrode contains a compound represented by Li | 12-03-2015 |
20150349334 | POSITIVE ELECTRODE FOR LITHIUM ACCUMULATOR - The invention relates to a lithium accumulator comprising: a) a current collector ( | 12-03-2015 |
20150357630 | Prussian Blue Analogue Electrodes without Zeolitic Water Content - A battery is provided with a hexacyanometallate cathode. The battery cathode is made from hexacyanometallate particles overlying a current collector. The hexacyanometallate particles have the chemical formula A | 12-10-2015 |
20150364759 | NICKEL-COBALT COMPOSITE HYDROXIDE AND PROCESS FOR MANUFACTURING SAME - Process for manufacturing nickel-cobalt composite represented by Ni | 12-17-2015 |
20150372293 | IMPROVED LITHIUM MANGANESE OXIDE COMPOSITIONS - The present disclosure relates to improved LMO composition suitable for use as cathode material in rechargeable lithium ion batteries. The LMO composition may be doped with an additional metal or undoped. The LMO composition carries a surface treatment of LiF that protects the LMO from acid degradation. Cathodes prepared from the improved LMO have improved fade characteristics. | 12-24-2015 |
20150372296 | STRUCTURES INCLUDING ION BEAM-MIXED LITHIUM ION BATTERY ELECTRODES, METHODS OF MAKING, AND METHODS OF USE THEREOF - Embodiments of the present disclosure provide for a structure, methods of making the structure, methods of using the structure, and the like. In an embodiment, the structure includes a film having one or more areas of the film being ion beam-mixed. In a particular embodiment, the structure includes a germanium film having one or more areas of the germanium film being ion beam-mixed. | 12-24-2015 |
20150380726 | SILICON-CONTAINING PARTICLE, NEGATIVE-ELECTRODE MATERIAL FOR USE IN NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A silicon-containing particle is provided for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery, wherein a crystal grain size is 300 nm or less, the crystal grain size being obtained by a Scherrer method from a full width at half maximum of a diffraction line attributable to Si and near 2θ=28.4° in an x-ray diffraction pattern analysis, and a true density is more than 2.320 g/cm | 12-31-2015 |
20150380729 | LITHIUM-ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A lithium-ion secondary battery of the present invention comprises a positive electrode including a positive electrode active material composite formed by compositing a lithium silicate-based material and a carbon material, a negative electrode including a negative electrode active material containing a silicon, and an electrolyte. The lithium-ion secondary battery satisfies 0.8 | 12-31-2015 |
20160006032 | Stoichiometrically Controlled Lithium Cobalt Oxide Based Compounds - A lithium metal oxide powder for use as a cathode material in a rechargeable battery, consisting of a core material and a surface layer, the core having a layered crystal structure consisting of the elements Li, a metal M and oxygen, wherein the Li content is stoichiometrically controlled, wherein the metal M has the formula M═Co | 01-07-2016 |
20160006033 | LITHIUM BATTERY - A lithium battery includes a cathode, an anode, and a separator between the cathode and the anode. The cathode includes a first cathode active material layer including a first cathode active material on a first side of a cathode current collector and a second cathode active material layer including a second cathode active material on a second side of the cathode current collector opposite the first side. The anode includes a first anode active material layer including a first anode active material on a first side of an anode current collector and a second anode active material layer including a second anode active material on a second side of the anode current collector opposite the first side. At least one of the first cathode active material layer and the second cathode active material layer includes an ionically polarizable electrode material. | 01-07-2016 |
20160028078 | COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING ELECTRODE INCLUDING THE COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL - A composite positive electrode active material for a lithium secondary battery including a compound represented by Formula 1 below and a compound represented by Formula 2 below, and a lithium secondary battery employing a positive electrode that includes the composite positive electrode active material: | 01-28-2016 |
20160043397 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A positive active material for a rechargeable lithium battery including a core including a compound being capable of intercalating and deintercalating lithium and the lithium metal phosphate positioned on the surface of the core, the lithium metal phosphate is represented by Chemical Formula 1, a method of preparing the same, and a rechargeable lithium battery including the same. | 02-11-2016 |
20160049645 | CATHODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD OF PRODUCING THE SAME, AND LITHIUM ION SECONDARY BATTERY - The present invention discloses a cathode material for lithium ion secondary battery. The cathode material is in the form of powder particles. The powder particle includes a bulk portion and a coating portion coated on the outer surface of the bulk portion. The bulk portion is formed of at least one first cathode material which is a lithium-nickel based composite oxide. The first cathode material has electrochemical activity and has high charging-discharging specific capacity at a charged voltage of 4.2V versus Li/Li | 02-18-2016 |
20160079593 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE AND LITHIUM BATTERY CONTAINING THE MATERIAL, AND METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - Provided is a composite anode active material with pores having a composition represented by Formula 1, and, the composite anode active material contains an amorphous phase including Si and a nano-crystalline phase including a metal silicide: | 03-17-2016 |
20160093888 | MANUFACTURING CATHODE MATERIAL, CATHODE, AND LITHIUM ION BATTERY - A cathode material which does not easily deteriorate when used in batteries, a method for producing cathode materials, a cathode, and a lithium ion battery are provided. A cathode material including a cathode active material, in which the cathode active material is expressed by Li | 03-31-2016 |
20160099464 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND POSITIVE ACTIVE MATERIAL LAYER AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A positive active material for a rechargeable lithium battery includes a lithium nickel-based oxide particle and a coating layer surrounding the lithium nickel-based oxide particle, the coating layer including diamond-like carbon. The lithium nickel-based oxide particle includes lithium and a nickel-containing metal. The nickel-containing metal includes about 60 atom % or greater of nickel based on the total atomic amount of the nickel-containing metal. An SP | 04-07-2016 |
20160133921 | COMPOSITE HAVING METAL FLUORIDE AND POROUS CARBON, METHOD FOR PREPARING THE SAME, AND LITHIUM ION BATTERY COMPRISING THE SAME - Disclosed is a composite, which includes a carrier, including porous carbon with a plurality of pores, and metal fluoride, loaded on the porous carbon, whereby the composite enables reversible charging and discharging in an electrochemical reaction, and can be used as a high-capacity electrode material. As this composite can be utilized as a cathode material for a lithium ion battery, energy density and cycling characteristics can be improved. Also, the preparation of the composite involves a solventless reaction, thus minimizing the loss of product due to the partial dissolution of a fluoride compound, realizing a very simple synthesis procedure, and obviating the need for a hazardous hydrofluoric acid aqueous solution or toxic gases, which require specific handling equipment, ultimately achieving a safe preparation process. | 05-12-2016 |
20160133922 | ELECTRODE FOR SECONDARY BATTERY HAVING IMPROVED ENERGY DENSITY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed are an electrode for a secondary battery having improved energy density and a lithium secondary battery including the same. More particularly, an electrode for a secondary battery, in which an electrode mix including an electrode active material, and a material having a shape easily rolled during electrode rolling as a conductive material is coated on an electrode current collector, and a lithium secondary battery including the same are provided. | 05-12-2016 |
20160133929 | ELECTRODE ACTIVE MATERIAL HAVING IMPROVED ENERGY DENSITY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed are an electrode active material having improved energy density and a lithium secondary battery including the same. More particularly, provided is an electrode active material including a first electrode active material and a second electrode active material, each of the first electrode active material and the second electrode active material having a composition represented by Formula (1) below, a ratio of lithium to metals in the first electrode active material being 1.4 to 1.7, and a ratio of lithium to metals in the second electrode active material being 1.2 or more and less than 1.4: | 05-12-2016 |
20160133930 | ELECTRODE INCLUDING DIFFERENT ELECTRODE MATERIAL LAYERS AND LITHIUM SECONDARY BATTERY - Disclosed is an electrode including a current collector and an electrode material layer formed on the current collector, the electrode material layer including a first electrode material layer and second electrode material layer having different electrode active materials. | 05-12-2016 |
20160141596 | METHOD OF PRE-LITHIATING NEGATIVE ELECTRODE - Disclosed is a method of pre-lithiating a negative electrode. More particularly, provided is a method of pre-lithiating a negative electrode, a surface of the negative electrode being lithiated by submerging a roll that is formed by rolling together a negative electrode, and copper (Cu) foil, both sides of which are rolled with metallic lithium (Li), in an electrolyte solution. | 05-19-2016 |
20160141608 | NEGATIVE ACTIVE MATERIAL AND LITHIUM BATTERY INCLUDING THE SAME - Provided are a negative active material and a lithium battery including the negative active material. The negative active material includes a non-carbonaceous core allowing doping or undoping of lithium ion; and a double coating layer formed on at least one portion of a surface of the non-carbonaceous core and including a first coating layer including a metal and a second coating layer including a metal oxide or a metal nitride. | 05-19-2016 |
20160141611 | USE OF NOVEL COMPOUNDS AS NEGATIVE ELECTRODE ACTIVE MATERIAL IN A SODIUM-ION BATTERY - Precursor compounds of sodium alloy(s), for use as negative electrode active material in a sodium-ion battery, as well as to a negative electrode have the precursor compound of sodium alloy(s), as well as a sodium-ion battery having a negative electrode of this kind. | 05-19-2016 |
20160149220 | ELECTRODE INCLUDING COATING LAYER FOR PREVENTING REACTION WITH ELECTROLYTE SOLUTION - Disclosed is an electrode for secondary batteries in which an electrode mix layer including an electrode active material is coated on an electrode collector, and a coating layer including aluminum (Al) and/or alumina (Al | 05-26-2016 |
20160156026 | ELECTRODE MATERIAL, PASTE FOR ELECTRODES, AND LITHIUM ION BATTERY | 06-02-2016 |
20160164071 | ELECTRODE FOR SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF - The present invention relates to a battery technology, and more particularly, to a current collector that may be widely used in secondary batteries and an electrode employing the same. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core consisting of a plurality of metal filaments; and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core. | 06-09-2016 |
20160190557 | CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE CATHODE ACTIVE MATERIAL - A cathode active material including a layered lithium metal composite oxide including a first lithium metal oxide and a second lithium metal oxide having different crystal structures, and a third lithium metal oxide which is incapable of intercalating and deintercalating lithium in a charge and discharge voltage range of about 2.0 volts to about 4.7 volts versus lithium Li/Li | 06-30-2016 |
20160190568 | COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND ANODE AND LITHIUM SECONDARY BATTERY INCLUDING THE COMPOSITE ANODE ACTIVE MATERIAL - A composite anode active material includes a metal silicide core, a silicon shell, and a metal nitride and a carbon material that are dispersed in at least one surface of the silicon shell. | 06-30-2016 |
20160197342 | POROUS SILICON-BASED ACTIVE MATERIAL FOR NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME | 07-07-2016 |
20160204421 | LITHIUM ION SECONDARY BATTERY HAVING POSITIVE ELECTRODE THAT COMPRISES THERMAL RUN-AWAY SUPPRESSING LAYER ON POSITIVE ELECTRODE ACTIVE MATERIAL LAYER | 07-14-2016 |
20160254527 | COMPOSITE SILICON OR COMPOSITE TIN PARTICLES | 09-01-2016 |
20170237067 | ACTIVE MATERIAL AND FLUORIDE ION BATTERY | 08-17-2017 |
20190148725 | CATHODE ACTIVE MATERIAL AND MANUFACTURING METHOD THEREOF | 05-16-2019 |