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| Number | Title | Issue Date |
| 7943111 | Process of making cathode material containing Ni-based lithium transition metal oxide The present invention provides for a process of making a Ni-based lithium transition metal oxide cathode active materials used in lithium ion secondary batteries. The cathode active materials are substantially free of Li2CO3 impurity and solubl... | 05/17/2011 |
| 7939049 | Cathode material containing Ni-based lithium transition metal oxide The present invention provides for Ni-based lithium transition metal oxide cathode active materials used in lithium ion secondary batteries. The cathode active materials are substantially free of Li2CO3 impurity and soluble bases. ... | 05/10/2011 |
| 7749482 | Process for producing lithium-containing composite oxide for positive electrode for lithium secondary battery To provide a process for producing a lithium-containing composite oxide for a positive electrode for a lithium secondary battery, which is excellent in the volume capacity density, safety, charge and discharge cycle durability and low temperature characteristics. | 07/06/2010 |
| 7648693 | Ni-based lithium transition metal oxide The present invention provides a powderous lithium transition metal oxide with the composition as represented by the below Formula and prepared by solid state reaction in air from a mixed transition metal precursor and Li2CO3, with being practi... | 01/19/2010 |
| 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 |
| 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 |
| 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 |
| 7374841 | Positive electrode active matter and secondary battery using this A cathode active material includes: (a) first oxide including (1) lithium (Li), nickel (Ni) and manganese, (2) a first element MI selected from Group 2 to Group 14 elements, and (3) oxygen; (b) a second oxide including (1) lithium, (2) a second element MII including... | 05/20/2008 |
| 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 |
| 7364793 | Powdered lithium transition metal oxide having doped interface layer and outer layer and method for preparation of the same The present invention provides a powdered lithium transition metal oxide useful as a major component for cathode active material of rechargeable lithium batteries, comprising a lithium transition metal oxide particle, a doped interface layer formed near the surface ... | 04/29/2008 |
| 7365118 | Polymer-assisted deposition of films A polymer assisted deposition process for deposition of metal oxide films is presented. The process includes solutions of one or more metal precursor and soluble polymers having binding properties for the one or more metal precursor. After a coating operation, the r... | 04/29/2008 |
| 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 |
| 7314682 | Lithium metal oxide electrodes for lithium batteries An uncycled electrode for a non-aqueous lithium electrochemical cell including a lithium metal oxide having the formula Li(2+2x)/(2+x)M′2x/(2+x)M(2−2x)/(2+x)O2−δ, in which 0≦x | 01/01/2008 |
| 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 |
| 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 |
| 7241532 | Positive-electrode material for lithium secondary battery, secondary battery employing the same, and process for producing positive-electrode material for lithium secondary battery A subject for the invention is to provide a positive-electrode material, which has high capacity and high output and is inhibited from suffering a decrease in output with repetitions of charge and use. The invention provides a positive-electrode material for ... | 07/10/2007 |
| 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 |
| 7147834 | Hydrothermal synthesis of perovskite nanotubes A low-temperature hydrothermal reaction is provided to generate crystalline perovskite nanotubes such as barium titanate (BaTiO3) and strontium titanate (SrTiO3) that have an outer diameter from about 1 nm to about 500 nm and a length from abou... | 12/12/2006 |
| 7122169 | Positive electrode material and nickel-zinc battery The present invention provides a nickel-zinc battery of an inside-out structure, that is, a battery comprising a positive electrode containing beta-type nickel oxyhydroxide and a negative electrode containing zinc and having a similar structure to an alkali manganes... | 10/17/2006 |
| 7078127 | Method for producing positive electrode material of Li-ion secondary battery A method for producing a positive electrode material adapted to the Li-ion secondary batteries is disclosed. The produced material has the following formula (I), Li1+xMn2−yMyO4 (I) wherein M is ... | 07/18/2006 |
| 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 |
| 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 |
| 7060246 | Magnesium hydroxide particles, method of the production thereof, and resin composition containing the same Provided are magnesium hydroxide particles having a hexagonal crystal form and having an aspect ratio (H) which satisfies the following expression (I), 0.45·A·B | 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 |
| 7034411 | Application of low-temperature and solid-state pyroelectric energy converter An application of low-temperature and solid-state pyroelectric energy converter for converting heat produced from low-temperature operations into electric energy, which utilizes man-made waste heat or waste heat from natural environments for producing changes in mat... | 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 |
| 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 |
| 6998069 | Electrode material for positive electrodes of rechargeable lithium batteries The electrode material for positive electrodes of rechargeable lithium batteries is based on a lithium transition metal oxide. Said lithium transition metal oxide is a lithium transmission metal mixed oxide with at least two transition metals (for example nickel and... | 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 |
| 6924064 | Positive active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery comprising same A positive active material for non-aqueous electrolyte secondary battery is provided comprising lithium manganese oxide having such a spinel structure that the half-width (2θ) of the reflection peak corresponding to 440 plane as determined by X-ray diffractometry u... | 08/02/2005 |
