| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 429231300 | Alkalated cobalt (Co) chalcogenide | 26 |
| 20080213667 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a nonaqueous electrolyte secondary battery | 09-04-2008 |
| 20090011336 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD OF MANUFACTURING THE SAME - As a positive electrode active material, a lithium transition metal complex oxide having a layered rock-salt structure containing lithium (Li) and containing magnesium atoms (Mg) substituted for part of lithium atoms (Li) is used. The lithium transition metal complex oxide is formed by chemical or electrochemical substitution of Mg atoms for part of Li atoms in LiCoO | 01-08-2009 |
| 20090017383 | POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR LITHIUM SECONDARY BATTERY AND PROCESS FOR PRODUCING THE SAME - A positive electrode active material for a lithium secondary battery containing a lithium-cobalt composite oxide, which has a large volume capacity density, has a high safety and is excellent in charge and discharge cyclic durability, and its production process, are provided. | 01-15-2009 |
| 20090075175 | LITHIUM METAL COMPOSITE OXIDE PARTICLES, PROCESS OF PRODUCING LITHIUM METAL COMPOSITE OXIDE PARTICLES, ELECTRODE STRUCTURE CONTAINING LITHIUM METAL COMPOSITE OXIDE PARTICLES, PROCESS OF PRODUCING ELECTRODE STRUCTURE , AND LITHIUM SECONDARY BATTERY HAVING ELECTRODE STRUCTURE - There is provided a lithium secondary battery having a high capacity and excellent high-rate discharge characteristic and charge/discharge cycle characteristic. The lithium secondary battery comprises a negative electrode, a positive electrode and an ionic conductor, wherein the positive electrode comprises lithium metal composite oxide particles; the lithium metal composite oxide particles comprise a plurality of secondary particles in an elongated shape each comprised of a plurality of primary particles with an average particle size of 0.1 to 1 μm so aggregated as to form a void therebetween; and the secondary particle is columnar or planar and has an average size in a long length direction of 5 to 15 μm. | 03-19-2009 |
| 20090208846 | Method of increasing charge-discharge capacity of nonaqueous electrolyte secondary battery - Method of increasing charge-discharge capacity of a nonaqueous electrolyte secondary battery including a positive electrode containing a positive active material, a negative electrode containing a negative active material other than metallic lithium and a nonaqueous electrolyte. The battery is charged at an end-of-charge voltage of at least 4.3V. The positive active material includes lithium cobaltate in which Zr and Mg are contained by mixing their source materials in the preparation of the positive active material by a heat treatment, the Zr and Mg being contained in the lithium cobaltate in a total amount of not greater than 3 mole %, the Zr after heat treatment being present as particles of a Zr-containing compound that are sintered with particle surfaces of the lithium cobaltate, and the Zr being detected in the particles of the Zr-containing compound but not in the lithium cobaltate particles. | 08-20-2009 |
| 20090239150 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A Ni-containing positive electrode active material for a nonaqueous electrolyte secondary battery is formed of secondary particles each constituted by aggregated primary particles. In cross sections of the secondary particles, a total cross-sectional area of part of the primary particles at least partially exposed at the surfaces of the secondary particles is at least 40% of a total cross-sectional area of the primary particles constituting the secondary particles. | 09-24-2009 |
| 20100112450 | Nonaqueous electrolyte secondary battery - A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive active material, a negative electrode containing a negative active material and a nonaqueous electrolyte. Characteristically, the positive active material comprises a mixture of a lithium transition metal complex oxide A obtained by incorporating at least Zr and Mg into LiCoO | 05-06-2010 |
| 20110045352 | MESOPOROUS Co3O4 NANOPARTICLES, ASSOCIATED METHODS AND APPLICATIONS - Each of: (1) a nanoparticle comprising a substantially single crystalline mesoporous Co | 02-24-2011 |
| 20110143207 | MULTI-LAYER ARTICLE COMPRISING POLYIMIDE NANOWEB - This invention provides a multi-layer article comprising a first electrode material, a second electrode material, and a porous separator disposed between and in contact with the first and the second electrode materials, wherein the porous separator comprises a nanoweb consisting essentially of a plurality of nanofibers of a fully aromatic polyimide. Also provided is a method for preparing the multi-layer article, and an electrochemical cell employing the same. A multi-layer article comprising a polyimide nanoweb with enhanced properties is also provided. | 06-16-2011 |
| 20110195310 | PRODUCTION METHOD FOR ELECTRODE FOR BATTERY, ELECTRODE PRODUCED BY PRODUCTION METHOD, AND BATTERY INCLUDING ELECTRODE - A production method for an electrode for a battery includes preparing a conductive substrate, and electrode material particles having ion conduction anisotropy; and producing an electrode by attaching the electrode material particles onto the conductive substrate, and applying a magnetic field in a predetermined direction. | 08-11-2011 |
| 20120156566 | PARTICLES OF DOPED LITHIUM COBALT OXIDE, METHOD FOR PREPARING THE SAME AND THEIR USE IN LITHIUM ION BATTERIES - The invention relates to provision of a novel high performance material manufactured from particles of doped lithium cobalt oxide which are usable in the manufacture of cathodes for lithium ion rechargeable (or storage) batteries. The doping agent is selected from the group of lanthanide oxides. Other objects of the invention are a method of improving the stability and the storage capacity of rechargeable lithium ion batteries and a method of manufacturing particles of doped lithium cobalt oxide according to the invention. | 06-21-2012 |
| 20120183858 | High Density Cathode Materials for Secondary Batteries - A lithium cobalt oxide powder for use as an active positive electrode material in lithium-ion batteries, the lithium cobalt oxide powder having a Ti content of between 0.1 and 0.25 mol %, and the lithium cobalt oxide powder having a density PD in g/cm | 07-19-2012 |
| 20130280613 | ELECTRODE THIN FILM, ALL-SOLID LITHIUM BATTERY, AND METHOD OF MANUFACTURING ELECTRODE FILM - An electrode thin film to be used in an all-solid lithium battery is formed predominantly of lithium cobaltate and has a density larger than or equal to 3.6 g/cm | 10-24-2013 |
| 20140087266 | CATHODE COMPOSITE MATERIAL 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. The cathode active material includes a lithium cobalt oxide. The coating layer includes 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 |
| 20140093778 | SINGLE CRYSTAL MIXED METAL OXIDE NANOSHEET MATERIAL COMPOSITIONS, METHODS AND APPLICATIONS - A nanosheet comprises a single crystal mixed metal oxide M1 | 04-03-2014 |
| 20140205907 | SILICON-BASED COMPOSITE AND PRODUCTION METHOD THEREOF - The present invention relates to a silicon-based composite including a silicon oxide which is coated thereon with carbon and bonded therein to lithium. The present invention also relates to a method of producing a silicon-based composite, comprising coating a surface of silicon oxide with carbon, mixing the silicon oxide coated with carbon with lithium oxide, and heat-treating a mixture of the silicon oxide coated with carbon and the lithium oxide in an inert atmosphere. | 07-24-2014 |
| 20140212759 | Lithium Metal Oxide Particles Coated with a Mixture of the Elements of the Core Material and One or More Metal Oxides - 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 | 07-31-2014 |
| 20140295283 | COBALT OXIDE, COMPOSITE OF COBALT OXIDE, AND METHOD FOR MAKING THE SAME - A cobalt oxide is disclosed and is represented by a chemical formula of Co | 10-02-2014 |
| 20140349188 | POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NONAQUEOUS ELECTROLYTE BATTERY - The present invention provides a nonaqueous electrolyte battery that exhibits high energy density and excellent cycle characteristics, as well as a cathode for use in such a battery, and a cathode active material for use in such a cathode. The cathode active material of the present invention has a composition represented by the formula (1) and a crystallite size in the (110) plane of not smaller than 85 nm: | 11-27-2014 |
| 20150099181 | CATHODE ACTIVE MATERIAL, ITS MANUFACTURING METHOD, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A cathode active material is provided. The cathode active material includes: a composite oxide particle including at least lithium and cobalt; a coating layer which is provided in at least a part of the composite oxide particle and includes an oxide including lithium and a coating element of at least one of nickel and manganese; and a surface layer which is provided in at least a part of the coating layer and includes at least one element selected from the group consisting of silicon, tin, phosphorus, magnesium, boron, zinc, tungsten, aluminum, titanium, and zirconium. | 04-09-2015 |
| 20150380722 | Lithium Metal Oxide Particles Coated with a Mixture of the Elements of the Core Material and One or More Metal Oxides - 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 to M molar ratio is between 0.98 and 1.01, and preferably between 0.99 and 1.00, wherein the metal M has the formula M=Co | 12-31-2015 |
| 20160006026 | Doped and Island-Covered Lithium Cobaltite Oxides - Disclosed is a cathode active material and a method to produce the same at low cost. The cathode powder comprises modified LiCoO | 01-07-2016 |
| 20160020456 | CATHODE MATERIAL FOR NON-AQUEOUS LITHIUM SECONDARY BATTERY USING SPHERICAL COBALT HYDROXIDE - The present invention relates to a cathode material for a nonaqueous lithium secondary battery using spherical cobalt hydroxide to inhibit the structural collapse of a final cathode material at a high voltage by preparing spherical cobalt hydroxide in which a dissimilar metal is uniformly substituted by using a precipitation reaction in a liquid phase, thereby improving lifetime characteristics even under high voltage charge/discharge conditions of 4.5 V. According to the present invention, it is possible to prepare spherical cobalt hydroxide having a particle size of 15-30 μm by precipitating a cobalt material, a hydroxyl group material, a dissimilar metal material for substitution and an amine-based material so as to have a composition represented by Co1-xMx(OH)2 (0.00≦x≦0.10, M=Al, Mg, Ti, and the like). Also, it is possible to prepare spherical cobalt oxide having a particle size of 10-25 μm by heat-treating the prepared cobalt hydroxide at 500-800° C. | 01-21-2016 |
| 20160156018 | Fabricating Method of Lithium Electrode and Lithium Secondary Battery Including the Same | 06-02-2016 |
| 20160181610 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME | 06-23-2016 |
| 20220140315 | CATHODE ACTIVE MATERIAL OF LITHIUM SECONDARY BATTERY - The present invention relates to a cathode active material for a lithium secondary battery, and more particularly, to a cathode active material for a lithium secondary battery, which includes a core portion and a shell portion surrounding the core portion, in which a total content of cobalt in the core portion and the shell portion is 5 to 12 mol %, and the content of cobalt in the core portion and the shell portion is adjusted to be within a predetermined range. | 05-05-2022 |
