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| Number | Title | Issue Date |
| 7803348 | Complex cobalt oxide catalysts for oxygen reduction electrodes in alkaline fuel cells Oxygen is reduced in the presence of a catalyst at the cathode of an alkaline-electrolyte fuel cell. Catalysts of the formula Sr3−xA1+xCo4−yByO10.5−z wherein −0.6≦x≦1.0; 0≦y≦3; and −1.5≦z≦0... | 09/28/2010 |
| 7481991 | Process for producing lithium-containing composite oxide for positive electrode for lithium secondary battery A process to produce a positive electrode active material for a lithium secondary battery, having a large volume capacity density and high safety, uniform coating properties, charge and discharge cyclic durability and low temperature characteristics even at a high c... | 01/27/2009 |
| 7384706 | Lithium-nickel-cobalt-maganese containing composite oxide, material for positive electrode active material for lithium secondary battery, and methods for producing these Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an... | 06/10/2008 |
| 7381496 | Lithium metal oxide materials and methods of synthesis and use A composition having a formula LixMgyNiO2 wherein 0.9 | 06/03/2008 |
| 7381394 | Method for producing perovskite-type composite oxide Methods of producing a safe and hygienic method for industrially and efficiently producing a perovskite-type composite oxide are provided that can maintain the catalytic activity of a noble metal at a high level. Methods include preparing a precursor of the perovski... | 06/03/2008 |
| 7381395 | Non-aqueous electrolyte secondary battery and method of manufacturing the same A positive electrode used in the non-aqueous electrolyte secondary battery of the present invention includes a hexagonal system lithium-containing cobalt composite oxide represented by the general expression ┌LiCo1-XMXO2 (M=Zr, Mg,... | 06/03/2008 |
| 7381498 | Positive electrode active material powder for lithium secondary battery To provide a lithium-nickel-cobalt-manganese composite oxide powder for a positive electrode of a lithium secondary battery, which has a large volume capacity density and high safety and is excellent in the charge and discharge cyclic durability. A positive electrod... | 06/03/2008 |
| 7368095 | Composite oxide for solid oxide fuel cell and method for preparation thereof The present invention provides a composite oxide for a high performance solid oxide fuel cell which can be fired at a relatively low temperature, and which has little heterogeneous phases of impurities other than the desired composition. The composite oxide is the o... | 05/06/2008 |
| 7332248 | Active material for positive electrode for non-aqueous electrolyte secondary battery and method of manufacturing the same A method of manufacturing a non-aqueous electrolyte secondary battery is provided wherein the positive electrode is made from a lithium-metal composite oxide represented by the general formula Lix(Ni1-y, Coy)1-zMz | 02/19/2008 |
| 7326477 | Spinel boules, wafers, and methods for fabricating same A single crystal spinel wafer is disclosed, including a front face and a back face; and an outer periphery having first and second flats. In certain embodiments, the single crystal wafer has a specific crystallographic orientation, and the flats are provided to exte... | 02/05/2008 |
| 7314684 | Layer cathode methods of manufacturing and materials for Li-ion rechargeable batteries A positive electrode active material for lithium-ion rechargeable batteries of general formula Li1+xNiαMnβAγO2 and further wherein A is Mg, Zn, Al, Co, Ga, B, Zr, or Ti and 0 | 01/01/2008 |
| 7306779 | Lithium-cobalt composite oxide, process for its production, positive electrode for lithium secondary cell employing it, and lithium secondary cell A composite oxide suitable for an active material of a positive electrode for a lithium secondary cell which can be used in a wide range of voltage, has a large electric capacity and excellent low temperature performance and is excellent in the durability for charge... | 12/11/2007 |
| 7288242 | Lithium-containing complex oxide and method of producing same A lithium-containing complex oxide exhibits a high performance as a cathode active material of a lithium secondary cell or the like and having a high tap density. A granular lithium-containing complex oxide, such as lithium manganese complex oxide, is made up of “... | 10/30/2007 |
| 7285357 | Electrochemically active material for the positive electrode of an electrochemically rechargeable lithium cell An electrochemically active material resulting from substituting a portion of the nickel in a single-phase composite oxide of nickel and lithium of the LiNiO2 type, characterized in that the active material satisfies the formula: Li(M1 | 10/23/2007 |
| 7276218 | Methods of making transition metal compounds useful as cathode active materials A method for carrying out solid state reactions under reducing conditions is provided. Solid state reactants include at least one inorganic metal compound and a source of reducing carbon. The reaction may be carried out in a reducing atmosphere in the presence of re... | 10/02/2007 |
| 7270797 | Process for producing positive electrode active material for lithium secondary battery To provide a process for producing a lithium-cobalt composite oxide for a positive electrode of a lithium secondary battery excellent in volume capacity density, safety, charge and discharge cyclic durability, press density and productivity, by using in expensive co... | 09/18/2007 |
| 7232557 | Method for preparation of magnetic spinel ferrites from layered double hydroxide precursors The invention describes a method of preparing magnetic ferrites from layered precursors in which Fe2+ is first introduced into the layers of layered double hydroxides (LDHs) in order to prepare Me-Fe2+—Fe3+ LDHs, and then by utiliz... | 06/19/2007 |
| 7226698 | Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery comprising same Disclosed is a positive active material for a lithium rechargeable battery, a method of preparing the same, and a lithium rechargeable battery comprising the same. The positive active material has an I(003)/I(104) intensity ratio of between 1.1... | 06/05/2007 |
| 7217474 | Positive electrode active material, non-aqueous electrolyte secondary battery and method for producing positive electrode active material A non-aqueous electrolyte secondary battery employing a positive electrode active material containing a compound represented by the general formula LixMyPO4, where 0 | 05/15/2007 |
| 7217406 | Lithium-manganese composite oxide granular secondary particle, method for production thereof and use thereof Granular secondary particles of a lithium-manganese composite oxide suitable for use in non-aqueous electrolyte secondary batteries showing high-output characteristics which are granular secondary particles made up of aggregated crystalline primary particles of a li... | 05/15/2007 |
| 7211237 | Solid state synthesis of lithium ion battery cathode material Single-phase lithium-transition metal oxide compounds containing cobalt, manganese and nickel can be prepared by wet milling cobalt-, manganese-, nickel- and lithium-containing oxides or oxide precursors to form a finely-divided slurry containing well-distributed co... | 05/01/2007 |
| 7192539 | Cobalt oxide particles and process for producing the same, cathode active material for non-aqueous electrolyte secondary cell and process for producing the same, and non-aqueous electrolyte secondary cell The present invention relates to cobalt oxide particles useful as a precursor of a cathode active material for a non-aqueous electrolyte secondary cell which is capable of showing a stable crystal structure by insertion reaction therein, and producing a non-aqueous ... | 03/20/2007 |
| 7163667 | Production process for oxide magnetic material and oxide magnetic material A production process for an oxide magnetic material comprising the steps of blending raw material powder so as to take the composition of a hexagonal ferrite including: at least one kind of an element A selected from the group consisting of Ba, Sr and Ca; Co and Cu;... | 01/16/2007 |
| 7157072 | Cathode composition for lithium batteries and method of preparing the same Provided is a cathode composition for lithium secondary battery that includes a lithium-chromium-titanium-manganese oxide that has the formula Li[Li(1-x)/3CrxTi(2/3)yMn2(1-x-y)/3]O2 where 0≦x≦0.3, 0≦y≦0.... | 01/02/2007 |
| 7157186 | Method of producing positive electrode active material for non-aqueous electrolyte secondary battery A method of producing a positive electrode active material for a non-aqueous electrolyte secondary battery, comprising the steps of: (a) preparing a raw material mixture, comprising “nx” mol of magnesium, “ny” mol of an element M where the element M is at le... | 01/02/2007 |
| 7138209 | Positive active material for rechargeable lithium battery and method of preparing same Disclosed is a positive active material for a rechargeable lithium battery. The positive active material includes a core and a surface-treatment layer on the core. The core includes at least one lithiated compound and the surface-treatment layer includes at least on... | 11/21/2006 |
| 7112291 | Cobalt oxide particles and process for producing the same, cathode active material for non-aqueous electrolyte secondary cell and process for producing the same, and non-aqueous electrolyte secondary cell The present invention relates to cobalt oxide particles useful as a precursor of a cathode active material for a non-aqueous electrolyte secondary cell which is capable of showing a stable crystal structure by insertion reaction therein, and producing a non-aqueous ... | 09/26/2006 |
| 7094301 | Method of forming a joint A method of joining at least two sintered bodies to form a composite structure, including providing a first multicomponent metallic oxide having a perovskitic or fluorite crystal structure; providing a second sintered body including a second multicomponent metallic ... | 08/22/2006 |
| 7074382 | Layered lithium metal oxides free of localized cubic spinel-like structural phases and methods of making same The present invention includes substantially single-phase lithium metal oxide compounds having hexagonal layered crystal structures that are substantially free of localized cubic spinel-like structural phases. The lithium metal oxides of the invention have the formu... | 07/11/2006 |
| 7060206 | Synthesis of metal compounds under carbothermal conditions Active materials of the invention contain at least one alkali metal and at least one other metal capable of being oxidized to a higher oxidation state. Preferred other metals are accordingly selected from the group consisting of transition metals (defined as Groups ... | 06/13/2006 |
| 7060390 | Lithium ion battery comprising nanomaterials A lithium ion battery includes a cathode (10) having a plurality of nanoparticles of lithium doped transition metal alloy oxides represented by the formula LixCoyNizO2, an anode (20) having at least one carbo... | 06/13/2006 |
| 7056486 | Method for preparing lithium manganese spinel complex oxide having improved electrochemical performance The present invention relates to lithium manganese complex oxide with a spinel structure used as an active material of a lithium or lithium ion secondary battery. Specifically, the present invention relates to a process for preparing lithium manganese complex oxide ... | 06/06/2006 |
| 7033555 | Low temperature lithiation of mixed hydroxides A low temperature contaminant limiting process for lithiating hydroxides and forming lithiated metal oxides of suitable crystalinity in-situ. M(OH)2 is added to an aqueous solution of LiOH. An oxidant is introduced into the solution which is heated below ... | 04/25/2006 |
| 7018607 | Cathode material for lithium battery A method is disclosed for synthesizing a crystalline metal oxide powder material containing two or more uniformly distributed metal elements. Crystalline, water containing, oxygen containing inorganic acid salts of the metals are heated to liquefy the salts. The app... | 03/28/2006 |
| 7011898 | Method of joining ITM materials using a partially or fully-transient liquid phase A method of forming a composite structure includes: (1) providing first and second sintered bodies containing first and second multicomponent metallic oxides having first and second identical crystal structures that are perovskitic or fluoritic; (2) providing a join... | 03/14/2006 |
| 7011907 | Secondary battery cathode active material, secondary battery cathode and secondary battery using the same A cathode active material for a lithium-ion secondary battery includes a spinel lithium manganese composite oxide expressed by the general formula: Lia(NixMn2−x−q−rQqRr)O4, wherein 0.4≦x≦0.6... | 03/14/2006 |
| 7008608 | Li-Co-Mn oxide as cathode material for lithium batteries and method of synthesis of the same Provided is a lithium-cobalt-manganese oxide having the formula Li[CoxLi(1/3−x/3)Mn(2/3−2x/3)]O2(0.05 | 03/07/2006 |
| 6998071 | COBALT OXIDE PARTICLES AND PROCESS FOR PRODUCING THE SAME, CATHODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL The present invention relates to cobalt oxide particles useful as a precursor of a cathode active material for a non-aqueous electrolyte secondary cell which is capable of showing a stable crystal structure by insertion reaction therein, and producing a non-aqueous ... | 02/14/2006 |
| 6953566 | Process for preparing cathode material for lithium batteries The present invention relates to a novel process based on solid state thermal reaction for the preparation of cathode materials for lithium secondary batteries such as rocking chair and intercalated batteries. ... | 10/11/2005 |
| 6949233 | Method of preparing positive active material for rechargeable lithium batteries A method for preparing a positive active material for a rechargeable lithium battery is provided. In this method, a lithium source, a metal source, and a doping liquid including a doping element are mixed and the mixture is heat-treated. ... | 09/27/2005 |
