Entries |
Document | Title | Date |
20080241690 | Crystalline Nanometric LiFePO4 - The present invention relates to lithium secondary batteries and more specifically to positive electrode materials operating at potentials greater than 2.8 V vs. Li | 10-02-2008 |
20080248390 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery includes: a positive electrode comprising a positive electrode active material capable of intercalating and deintercalating lithium ions; a negative electrode; and a non-aqueous electrolyte. The positive electrode active material contains Li | 10-09-2008 |
20080254365 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials for rechargeable lithium batteries, manufacturing methods thereof, and rechargeable lithium batteries including the negative active materials are provided. The negative active material includes a compound represented by the Formula Li | 10-16-2008 |
20080261113 | SECONDARY ELECTROCHEMICAL CELL WITH HIGH RATE CAPABILITY - The invention provides an electrochemical cell which includes a first electrode having a electrode active material, a second electrode which is a counter electrode to the first electrode, and an electrolyte. The negative electrode active material is represented by the general formula E | 10-23-2008 |
20080261114 | ANODE ACTIVE MATERIAL AND SECONDARY BATTERY - A secondary battery having a high capacity and superior cycle characteristics and an anode active material used for it are provided. The anode active material contains, as an element, at least tin (Sn), iron (Fe), cobalt (Co), and carbon (C). A carbon content is in the range from 11.9 wt % to 29.7 wt %, a total ratio of iron and cobalt to a total of tin, iron, and cobalt is in the range from 26.4 wt % to 48.5 wt %, and a cobalt ratio to a total of iron and cobalt is in the range from 9.9 wt % to 79.5 wt %. A reactive phase capable of reacting with an electrode reactant is included. A half-width of a diffraction peak obtained by X-ray diffraction (peak observed at diffraction angle 2θ of between 41 degrees and 45 degrees) is 1.0 degree or more. | 10-23-2008 |
20090004567 | Cathode Active Material and Battery - A battery capable of improving load characteristics, low-temperature characteristics and high-temperature cycle characteristics is provided. A cathode ( | 01-01-2009 |
20090004568 | ANODE AND BATTERY - A battery capable of improving the cycle characteristics is provided. The battery includes a cathode, an anode and an electrolytic solution. The anode has an anode current collector, an anode active material layer provided on the anode current collector, and a coat provided on the anode active material layer, in which the coat contains a fluorine resin having an ether bond. | 01-01-2009 |
20090017381 | ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY AND NON-AQUEOUS ELECTROLYTE BATTERY - An electrode for a non-aqueous electrolyte battery includes a current collector formed of aluminum foil or aluminum alloy foil, and an active material-containing layer formed on a surface of the current collector and containing an active material, a conductive agent and a binder. The conductive agent comprises a carbon particle group containing first carbon particles each exhibiting an aspect ratio of more than one. A portion of each of the first carbon particles is embedded into the current collector to the depth corresponding to 20 to 50% of the thickness of the current collector. A major axis of each of the first carbon particles has a length of 1.05 to 1.50 times as large as the thickness of the active material-containing layer. | 01-15-2009 |
20090023066 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR CHARGING DEVICE - To present a carbon material which provides an electrical storage device not only ensuring a high energy density but also realizing a high output and an excellent low temperature performance. | 01-22-2009 |
20090068560 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery has a negative electrode, a non-aqueous electrolyte, and a positive electrode containing a positive electrode active material composed of an olivine lithium-containing metal phosphate represented by the general formula Li | 03-12-2009 |
20090111024 | Lithium transition-metal phosphate powder for rechargeable batteries - Methods of manufacture and use of phosphates of transition metals are described as positive electrodes for secondary lithium batteries, including a process for the production of LiMPO | 04-30-2009 |
20090117464 | FABRICATION METHOD FOR ELECTRODE ACTIVE MATERIAL AND LITHIUM BATTERY COMPRISING ELECTRODE ACTIVE MATERIAL FABRICATED THEREFROM - Disclosed is a fabrication method for an electrode active material, and a lithium battery comprising an electrode active material fabricated therefrom. The fabrication method for an electrode active material comprises preparing an aqueous solution by dissolving a precursor that can simultaneously undergo positive ion substitution and surface-reforming processes in water; mixing and dissolving raw materials for an electrode active material with a composition ratio for a final electrode active material in the aqueous solution, thereby preparing a mixed solution; removing a solvent from the mixed solution, thereby forming a solid dry substance; thermal-processing the solid dry substance; and crushing the thermal-processed solid dry substance. | 05-07-2009 |
20090123841 | SECONDARY BATTERY ELECTRODE INK, LITHIUM-ION BATTERY, AND ELECTRONIC DEVICE - A secondary battery electrode ink is adapted to be discharged from a droplet discharge device to make an electrode layer of a secondary battery. The secondary battery electrode ink includes an active substance including at least one of a positive electrode active substance and a negative electrode active substance, and a liquid medium. The liquid medium dissolves and/or disperses the active substance. The liquid medium has a characteristic in which, when a cured epoxy adhesive material is put into the liquid medium under a sealed condition at an atmospheric pressure and a temperature of approximately 50° C. and left for ten days, a weight increase rate of the cured epoxy adhesive material is 130% or less. | 05-14-2009 |
20090148771 | CATHODE AND NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery includes a cathode having a cathode active material layer including a lithium phosphate compound having an olivine structure; an anode having an anode active material; and a nonaqueous electrolyte, wherein the cathode active material layer includes a carbon material, of which a ratio of a peak intensity at 1,360 cm | 06-11-2009 |
20090155689 | Lithium iron phosphate cathode materials with enhanced energy density and power performance - The invention is related to a cathode material comprising particles having a lithium metal phosphate core and a pyrolytic carbon deposit, said particles having a synthetic multimodal particle size distribution comprising at least one fraction of micron size particles and one fraction of submicron size particles, said lithium metal phosphate having formula LiMPO | 06-18-2009 |
20090169996 | Hybrid nano-filament anode compositions for lithium ion batteries - This invention provides a hybrid nano-filament composition for use as an electrochemical cell electrode. The composition comprises: (a) an aggregate of nanometer-scaled, electrically conductive filaments that are substantially interconnected, intersected, or percolated to form a porous, electrically conductive filament network comprising substantially interconnected pores, wherein the filaments have an elongate dimension and a first transverse dimension with the first transverse dimension being less than 500 nm (preferably less than 100 nm) and an aspect ratio of the elongate dimension to the first transverse dimension greater than 10; and (b) micron- or nanometer-scaled coating that is deposited on a surface of the filaments, wherein the coating comprises an anode active material capable of absorbing and desorbing lithium ions and the coating has a thickness less than 20 μm (preferably less than 1 μm). Also provided is a lithium ion battery comprising such an electrode as an anode. The battery exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life. | 07-02-2009 |
20090169997 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery includes an electrode group includes a positive electrode and a negative electrode disposed through a separator, and a non-aqueous electrolyte. The negative electrode comprises a current collector and a porous negative electrode layer formed on the current collector and containing a lithium compound. The porous negative electrode layer has a first peak at a pore diameter of 0.04 to 0.15 μm and a second peak at a pore diameter of 0.8 to 6 μm in the relation between the pore diameter and log differential intrusion obtained in the mercury press-in method. | 07-02-2009 |
20090186276 | Hybrid nano-filament cathode compositions for lithium metal or lithium ion batteries - This invention provides a hybrid nano-filament composition for use as a cathode active material. The composition comprises (a) an aggregate of nanometer-scaled, electrically conductive filaments that are substantially interconnected, intersected, or percolated to form a porous, electrically conductive filament network, wherein the filaments have a length and a diameter or thickness with the diameter or thickness being less than 500 nm; and (b) micron- or nanometer-scaled coating that is deposited on a surface of the filaments, wherein the coating comprises a cathode active material capable of absorbing and desorbing lithium ions and the coating has a thickness less than 10 μm, preferably less than 1 μm and more preferably less than 500 nm. Also provided is a lithium metal battery or lithium ion battery that comprises such a cathode. Preferably, the battery includes an anode that is manufactured according to a similar hybrid nano filament approach. The battery exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life. | 07-23-2009 |
20090186277 | MIXED METAL OLIVINE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES - A positive electrode material is provided including an electroactive material having one or more phases comprising lithium (Li), an electroactive metal (M), and phosphate (PO | 07-23-2009 |
20090239148 | HIGH VOLTAGE CATHODE COMPOSITIONS - Cathode compositions for lithium-ion electrochemical cells are provided that have excellent stability at high voltages. These materials include a plurality of particles having an outer surface and a lithium electrode material in contact with at least a portion of the outer surface of the particles. The particles includes a lithium metal oxide that includes manganese, nickel, and cobalt, and the lithium electrode material has a recharged voltage that is lower vs. Li/Li | 09-24-2009 |
20090253039 | LITHIUM-TRANSITION METAL COMPLEX COMPOUNDS HAVING Nth ORDER HIERARCHICAL STRUCTURE, METHOD OF PREPARING THE SAME AND LITHIUM BATTERY COMPRISING AN ELECTRODE COMPRISING THE SAME - A lithium-transition metal complex compound has an n | 10-08-2009 |
20090263718 | Positive electrode for lithium secondary cell and lithium secondary cell using the same - A positive electrode for a lithium secondary cell is provided that is excellent in dispersibility and adhesion of the conductive agent and provides a lithium secondary cell excellent in performance. The positive electrode for a lithium secondary cell contains a positive electrode active substance represented by the following formula (I), a conductive agent and a binder, and the conductive agent has an average particle diameter of from 3 to 20 μm measured by a laser diffraction scattering method: | 10-22-2009 |
20090280411 | POSITIVE ELECTRODE, PRODUCTION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY USING THE SAME - A positive electrode for a lithium secondary battery obtained by bonding a positive electrode-active material, a conductive material, and a current collector with a carbon which has a graphitization degree expressed by a peak intensity ratio, i.e. the ratio of peak intensity at 1360 cm | 11-12-2009 |
20090280412 | LITHIUM COMPOSITE METAL OXIDE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a lithium composite metal oxide containing Li and at least one transition metal element, wherein at least one lithium composite metal oxide particle constituting the lithium composite metal oxide has both hexagonal and monoclinic crystal structures. Further, the present invention also provides a lithium composite metal oxide containing Li, Ni and M (where, M represents one or more kinds of transition metal elements selected from the group consisting of Mn, Co and Fe), having a diffraction peak (diffraction peak A) at an angle 2θ in a range from 20° to 23° in a powder X-ray diffraction pattern of a lithium composite metal oxide which is obtained by powder X-ray diffraction measurement made in the condition that CuKα is used as a radiation source and the measurement range of diffraction angle 2θ is in a range from 10° to 90°. | 11-12-2009 |
20090286159 | Lithium secondary battery and electrodes for use therein - The present invention relates to a positive electrode for a rechargeable lithium ion battery comprised of single particles containing a compound of the formula LiMPCU, whereby M is a metal selected from the group consisting of Co, Ni, Mn, Fe, Ti or combinations thereof, and whereby in a X-Ray diffraction chart of the electrode the ratio of the intensity I | 11-19-2009 |
20090291366 | Method of preparing cathode containing Iron disulfide for a lithium cell - A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS | 11-26-2009 |
20090297949 | Lithium Primary Cells - Primary lithium cells are provided, the cells having an anode comprising lithium and a cathode comprising iron disulfide. Features of the cells are optimized in order to enhance the cell performance within the constraints imposed by the maximum permitted level of lithium and standard cell dimensions. | 12-03-2009 |
20090297950 | Lithium battery - The present invention is to provide a lithium iron battery includes cathode films, each having an accumulation structure added with activated materials, anode films, and electrolysis liquid. In that, an activated material (i.e. lithium phosphate based cathode added with lithium-nickel-cobalt-manganese mixed metal oxide) has a voltage plateau larger than the lithium phosphate applied to the cathode. | 12-03-2009 |
20090311602 | ELECTRODE FOR LITHIUM BATTERIES AND METHOD OF MANUFACTURING ELECTRODE FOR LITHIUM BATTERIES - To accelerate a film formation rate in forming a negative electrode active material film by vapor deposition using an evaporation source containing Si as a principal component, and to provide an electrode for lithium batteries which is superior in productivity, and keeps the charge and discharge capacity at high level are contemplated. The method of manufacturing an electrode for lithium batteries of the present invention includes the steps of: providing an evaporation source containing Si and Fe to give a molar ratio of Fe/(Si+Fe) being no less than 0.0005 and no greater than 0.15; and vapor deposition by melting the evaporation source and permitting evaporation to allow for vapor deposition on a collector directly or through an underlying layer. The electrode for lithium batteries of the present invention includes a collector, and a negative electrode active material film which includes SiFe | 12-17-2009 |
20090325073 | MATERIAL FOR CONTACT COMPONENTS OR BATTERY COMPONENTS, AND BATTERY USING THE SAME - A material for contact components or battery components, which includes a metal sheet having a surface layer portion containing a first metal element, the metal sheet including a Cr-containing steel plate or a surface-treated steel plate, and at least a part of the first metal element on an outermost surface of the surface layer portion being substituted by a second metal element having a nobler standard electrode potential than the first metal element, the second metal element being deposited on the outermost surface in a state of a particulate metal, oxide, or hydroxide. | 12-31-2009 |
20100028776 | CATHODE ACTIVE MATERIAL AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a cathode active material and a secondary battery including the same. Herein, the cathode active material includes (a) a first lithium-containing metal composite oxide and (b) a second lithium-containing metal composite oxide coated on an entire particle surface of the first lithium-containing metal composite oxide, the second lithium-containing metal composite oxide having a higher resistance and a lower potential vs. lithium potential (Li/Li″ 1) than the first lithium-containing metal composite oxide. In the disclosed cathode active material, an entire surface of a first lithium-containing metal composite oxide is coated with a second lithium-containing metal composite oxide having a high resistance value and a low potential vs. lithium potential. Therefore, during an internal short of a secondary battery, it is possible to slow down the moving rate of a large amount of lithium ions and electrons from an anode to a cathode, and thus to prevent heat generation caused by the occurrence of temporary over-current. Also, it is possible to increase the temperature where a cathode active material is decomposed and gas is generated, and to improve thermal stability by inhibiting side reactions of the cathode active material and electrolyte. | 02-04-2010 |
20100028777 | Nonaqueous Electrolyte Secondary Batteries - The present invention is intended to improve load characteristics at the time of charging or discharging by assuring a lithium ion transport pathway in the crystal structure of olivine lithium-containing manganese phosphate. There is used a positive electrode active material which is a composite material comprising a material having an olivine structure and represented by Li | 02-04-2010 |
20100035154 | ELECTRODE ACTIVE MATERIAL AND MANUFACTURING METHOD OF SAME - Electrode active material of the invention is such that a Li | 02-11-2010 |
20100035155 | CATHODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD OF THE SAME - In a non-aqueous electrolyte secondary battery, in order to adjust a cathode active material in which guest cation such as Na and Li is included, alkaline metal fluoride which is expressed by a general formula AF and transition metal fluoride which is expressed by a formula M′ F | 02-11-2010 |
20100047691 | LITHIUM SECONDARY BATTERY - The present invention provides a lithium secondary battery having a positive electrode, a negative electrode, and a solid electrolyte and characterized in that the positive electrode contains positive electrode active material particles made of particles of a material capable of doping/dedoping lithium ion and an element M-containing compound (herein, the element M-containing compound is a compound containing one or more elements selected from B, Al, Mg, Co, Cr, Mn, and Fe as the element M) disposed on the surfaces of the particles as particles or in a layered state. | 02-25-2010 |
20100081054 | Lithium battery - A lithium battery includes anode piece, cathode piece and electrolyte. The anode piece includes anode accumulation structure and anode film attached thereto; the cathode piece includes cathode accumulation structure and cathode film attached thereto; on an identical area surface, reversible capacities of cathode/anode activated materials are in the range of 1.4˜2.4. The lithium battery of the present invention with capacity larger than 5 Ah can achieve preferable safety. | 04-01-2010 |
20100086851 | POSITIVE ELECTRODE AND METHOD FOR MANUFACTURING THE SAME AND LITHIUM BATTERY UTILIZING THE SAME - Disclosed is a positive electrode applied in lithium battery and method for manufacturing the same. First, a lithium alloy oxide layer is formed on a substrate. Subsequently, an additional high density and low energy plasma treatment is processed, such that the lithium alloy oxide layer has a top surface composed of uniform, dense, and inter-necked nano grains, and the in-side/bottom grains of the oxide layer remain unchanged. According to experiments, the positive electrode with such properties has higher capacity and longer cycle lifetime, thereby improving the lithium battery performance. | 04-08-2010 |
20100086852 | Room Temperature Single Phase Li Insertion/Extraction Material for Use in Li-Based Battery - The invention relates to active materials for the manufacture of Li-based batteries. A crystalline nanometric powdered material with formula Li | 04-08-2010 |
20100092865 | CARBON COMPOSITE MATERIALS AND PROCESS FOR PRODUCTION THEREOF - The invention provides materials capable of giving electrodes having the smaller rate of the capacity loss due to an irreversible capacity in the initial cycle in the charge and discharge cycle test as compared with electrodes comprising conventional materials; and a process for the production thereof. A carbon composite material comprising a carbon material and a metal oxide coating on the surface of the carbon material, wherein the metal oxide is an Fe-containing metal oxide; a carbon composite material, wherein the above-described carbon material is mesoporous carbon; a carbon composite material, wherein the above-described Fe-containing metal oxide is Fe | 04-15-2010 |
20100112443 | Lithium Secondary Batteries with Positive Electrode Compositions and Their Methods of Manufacturing - Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 60 μm. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting of LiCoO | 05-06-2010 |
20100112444 | ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERIES - An electrode for non-aqueous secondary batteries that is capable of intercalating and de-intercalating an alkali metal, such as lithium, and a non-aqueous secondary battery comprising the electrode are disclosed. The electrode comprises an electrode current collector, and, on the electrode current collector, an electrode active material. The electrode active material has the overall composition: Si | 05-06-2010 |
20100112445 | SECONDARY BATTERY WITH IMPROVED SAFETY - The present invention provides a cathode comprising two or more lithium-containing metal composite oxides, having different potentials versus lithium (Li/Li+) and different impedances, the cathode comprising: (a) a first lithium-containing metal composite oxide; and (b) a second lithium-containing metal composite oxide, which has a high impedance and low potential versus lithium (Li/Li+), compared to those of the first lithium-containing metal composite oxide. In the invention, two or more lithium-containing metal composite oxides are used in combination as cathode components in a battery, whereby, when a short circuit occurs in the battery, the instantaneous flow of a large amount of current can be minimized and, at the same time, the accumulation of heat in the battery can be reduced, thus ensuring the safety of the battery. | 05-06-2010 |
20100112446 | ACTIVE ELECTRODE MATERIAL, MANUFACTURING METHOD OF SAME, AND LITHIUM-ION BATTERY USING THAT ACTIVE ELECTRODE MATERIAL - Electrode active material is provided which is mainly an amorphous iron-phosphate complex represented by Li | 05-06-2010 |
20100124703 | CATHODE ACTIVE MATERIAL, CATHODE, AND NONAQUEOUS SECONDARY BATTERY - The present invention realizes a cathode active material which not only excels in safety and cost but also makes it possible to provide a long-life battery. The cathode active material is represented by the general formula (1): | 05-20-2010 |
20100143801 | 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. | 06-10-2010 |
20100167127 | LITHIUM IRON PHOSPHATE BATTERY ELECTRODE AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to an electrode for the lithium iron phosphate battery and the manufacturing method thereof, and more particularly, to a coated electrode for the lithium iron phosphate with a smooth surface and without de-powder phenomenon and the manufacturing method thereof. The electrode provided in the present invention uses an arabic gum modified by adding silicone-based gel into the arabic gum. The lithium iron phosphate active material and the conductive agent in a certain ratio are added into the aforesaid modified arabic gums, after the mixing process, a liquid slurry with a certain viscosity is formed. Then, the liquid slurry is coated uniformly onto a positive current collector of aluminum foil or mesh, and followed by the process like drying, calendaring, cutting and etc. to form positive electrode plate. The electrode in the present invention has the characteristics of smooth surface and no de-powder phenomenon. The difficult-to-coat problem in manufacturing lithium ion battery electrode with lithium iron phosphate in the prior art is overcome. | 07-01-2010 |
20100178562 | CARBON COATED LITHIUM MANGANESE PHOSPHATE CATHODE MATERIAL - The present invention concerns a carbon coated lithium metal phosphate material containing a manganese oxide layer between the LiMnPO4 material or the C/LiMn | 07-15-2010 |
20100183923 | Electrode Active Material and Lithium Secondary Battery - Electrode active material that is used together with an electrolyte solution having an electrolyte decomposition potential Ve is represented by the general expression LixFeMyO2 and is amorphous. In the expression, x and y are values which independently satisfy 107-22-2010 | |
20100183924 | ELECTRODE-ACTIVE ANION-DEFICIENT NON-STOICHIOMETRIC LITHIUM IRON PHOSPHATE, METHOD FOR PREPARING THE SAME, AND ELECTROCHEMICAL DEVICE USING THE SAME - The invention provides an anion-deficient non-stoichiometric lithium iron phosphate as an electrode-active material, which is represented by the formula Li | 07-22-2010 |
20100227220 | LITHIUM-OXYGEN (AIR) ELECTROCHEMICAL CELLS AND BATTERIES - This invention provides a lithium-oxygen or lithium-air electrochemical cell comprising a negative electrode, an electrolyte, and a porous activated positive electrode comprising lithium-rich electrocatalytic materials suitable for use in lithium-oxygen (air) cells and batteries. The activated positive electrode is produced by activating a precursor electrode formed from a material comprising one or more metal oxide compounds of general formula xLi | 09-09-2010 |
20100233541 | METHOD OF MANUFACTURING ACTIVE MATERIAL, ACTIVE MATERIAL, ELECTRODE USING THE SAME, AND LITHIUM-ION SECONDARY BATTERY EQUIPPED THEREWITH - A method of manufacturing an active material having a sufficient discharge capacity at a high discharge current density, an active material obtained thereby, an electrode using the same, and a lithium-ion secondary battery equipped therewith are provided. The method of manufacturing an active material comprises a step of polymerizing a mixture containing an Fe ion, an Li ion, a PO | 09-16-2010 |
20100239909 | CATHODE MIX CONTAINING HAVING IMPROVED EFFICIENCY AND ENERGY DENSITY OF ELECTRODE - Provided is a cathode mix for lithium secondary batteries, comprising a cathode active material having a composition represented by the following Formula I: LiFe(P | 09-23-2010 |
20100248032 | LITHIUM MIXED METAL OXIDE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A lithium mixed metal oxide comprising Ni, Mn and Fe and having a BET specific surface area of 2 m | 09-30-2010 |
20100255374 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery comprising
| 10-07-2010 |
20100261060 | LITHIUM IRON PHOSPHATE HAVING OLIVINE STRUCTURE AND METHOD FOR ANALYZING THE SAME - Provided is an olivine-type lithium iron phosphate having a composition represented by Formula I, comprising 0.1 to 5% by weight of Li | 10-14-2010 |
20100266899 | Electrodes Comprising Mixed Active Particles - An electrode active material comprising two or more groups of particles having differing chemical compositions, wherein each group of particles comprises a material selected from:
| 10-21-2010 |
20100273053 | Electrochemical Cell - An electrochemical cell comprising a cathode, an anode and an electrolyte is provided, wherein: | 10-28-2010 |
20100273054 | ELECTRODES AND ELECTRODE MATERIAL FOR LITHIUM ELECTROCHEMICAL CELLS - An electrode and an electrode material for lithium electrochemical cells are disclosed. The electrode material is in powder form and has a particle size distribution wherein the measured particle size distribution of the electrode material has a median size D | 10-28-2010 |
20100310934 | POSITIVE ACTIVE MATERIAL AND POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE POSITIVE ELECTRODE - A positive electrode for a rechargeable lithium battery includes a first positive active material represented by Li | 12-09-2010 |
20100310935 | 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 | 12-09-2010 |
20100310936 | CATHODE ACTIVE MATERIAL, CATHODE AND NONAQUEOUS SECONDARY BATTERY - The present invention allows production of a battery which not only excels in terms of safety and cost, but also has a long life. A cathode active material of the present invention is represented by the following General Formula (1): | 12-09-2010 |
20100316909 | 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 | 12-16-2010 |
20100330428 | METHOD OF MAKING TIN-BASED ALLOYS FOR NEGATIVE ELECTRODE COMPOSITIONS - Powder milling techniques, tin-based alloys formed thereby, and the use of such alloys as electrode compositions for lithium ion batteries are provided. The alloys include tin and at least one transition metal but contain no silicon. The powder milling is done using low energy roller milling (pebble milling). | 12-30-2010 |
20110020703 | CATHODE PLATE FOR SECONDARY BATTERY, MANUFACTURING METHOD THEREOF AND SECONDARY BATTERY PROVIDED WITH THE CATHODE PLATE - Disclosed is a cathode plate for a secondary battery, which includes a collector, and a cathode active material layer, wherein the cathode active material layer is formed of multiple layers of coating films formed on a surface of the collector and obtained by application and drying of an aqueous paste, which is obtained by kneading and dispersing an iron lithium phosphate material having an olivine structure as the cathode active material, an electroconductive material, a water-soluble thickner, a binder, and water as a dispersion medium. | 01-27-2011 |
20110052987 | BATTERY SEPARATOR AND NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery of the present invention includes a positive electrode having a positive active material capable of intercalating and deintercalating a lithium ion, a negative electrode having a negative active material capable of intercalating and deintercalating a lithium ion, a separator interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The heat generation starting temperature of the positive electrode is 180° C. or higher. The separator includes heat-resistant fine particles and a thermoplastic resin. The proportion of particles with a particle size of 0.2 μm or less in the heat-resistant fine particles is 10 vol % or less and the proportion of particles with a particle size of 2 μm or more in the heat-resistant fine particles is 10 vol % or less. The separator effects a shutdown in the range of 100° C. to 150° C. | 03-03-2011 |
20110052988 | MIXED METAL OLIVINE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES HAVING IMPROVED SPECIFIC CAPACITY AND ENERGY DENSITY - Improved positive electrode material and methods for making the same are described. Lithium-iron-manganese phosphate materials, doped with one or more dopant Co, Ni, V, and Nb, and methods for making the same are described. The improved positive electrode material of the present invention is capable of exhibiting improved energy density and/or specific capacity for use in wide range of applications. In certain embodiments, energy density of greater than 340 mWh/g is possible. | 03-03-2011 |
20110052989 | LITHIUM DOPED CATHODE MATERIAL - Lithium dopant is introduced into lithium rich high capacity positive electrode active materials as a substitution for manganese within the complex metal oxides. In some embodiments, the lithium doped compositions can be written in a two component notation as x.Li | 03-03-2011 |
20110065002 | Positive Electrode Active Material for Lithium Ion Battery, Positive Electrode for Secondary Battery using said Positive Electrode Active Material, and Lithium Ion Secondary Battery using Secondary Battery Positive Electrode - Provided is a positive electrode active material for a lithium ion battery, wherein the oil absorption of NMP (N-methylpyrrolidone) measured with a method that is compliant with JIS K5101-13-1 is 30 mL or more and 50 mL or less per 100 g of powder, and wherein [the positive electrode active material] is represented with Li | 03-17-2011 |
20110070495 | METHOD OF FABRICATING ELECTRODES INCLUDING HIGH-CAPACITY, BINDER-FREE ANODES FOR LITHIUM-ION BATTERIES - An electrode ( | 03-24-2011 |
20110070496 | COMPOSITION AND ENERGY STORAGE DEVICE - In accordance with one aspect of the present invention, a cathode composition is provided that includes at least one transition metal or a transition metal salt, wherein the transition metal is at least one selected from the group consisting of nickel, iron, cobalt, chromium, manganese, molybdenum, and antimony; an alkali metal halide; a salt comprising an alkali metal halide and a metal halide; and a metal polysulfide compound MS | 03-24-2011 |
20110081577 | LITHIUM SECONDARY CELL WITH HIGH CHARGE AND DISCHARGE RATE CAPABILITY - A high capacity, high charge rate lithium secondary cell includes a high capacity lithium-containing positive electrode in electronic contact with a positive electrode current collector, said current collector in electrical connection with an external circuit, a high capacity negative electrode in electronic contact with a negative electrode current collector, said current collector in electrical connection with an external circuit, a separator positioned between and in ionic contact with the cathode and the anode, and an electrolyte in ionic contact with the positive and negative electrodes, wherein the total area specific impedance for the cell and the relative area specific impedances for the positive and negative electrodes are such that, during charging at greater than or equal to 4 C, the negative electrode potential is above the potential of metallic lithium. | 04-07-2011 |
20110086273 | ELECTRODE MATERIALS WITH HIGH SURFACE CONDUCTIVITY - The present invention concerns electrode materials capable of redox reactions by electrons and alkali ions exchange with an electrolyte. The applications are in the field of primary (batteries) or secondary electrochemical generators, super capacitors and light modulating system of the super capacitor type. | 04-14-2011 |
20110091772 | PROCESS FOR PRODUCING LITHIUM IRON PHOSPHATE PARTICLES, LITHIUM IRON PHOSPHATE PARTICLES HAVING OLIVINE TYPE STRUCTURE, AND POSITIVE ELECTRODE SHEET AND NON-AQUEOUS SOLVENT-BASED SECONDARY BATTERY USING THE LITHIUM IRON PHOSPHATE PARTICLES - The present invention relates to a process for producing lithium iron phosphate particles having an olivine type structure, comprising a first step of mixing an iron oxide or an iron oxide hydroxide as an iron raw material which comprises at least one element selected from the group consisting of Na, Mg, Al, Si, Cr, Mn and Ni in an amount of 0.1 to 2 mol % for each element based on Fe, and a carbon element C in an amount of 5 to 10 mol % based on Fe, and has a content of Fe | 04-21-2011 |
20110104570 | CATHODE COMPOSITIONS COMPRISING ZN AND CHALCOGENIDE AND ENERGY STORAGE CELL COMPRISING SAME - A cathode composition and a rechargeable electrochemical cell comprising same are disclosed. The cathode composition is described as comprising (i) particles including a transition metal selected from the group consisting of Ni, Fe, Cr, Mn, Co, V, and combinations thereof; (ii) alkali halometallate; (iii) alkali halide; (iv) source of Zn; and (v) source of chalcogenide. Also described is a rechargeable electrochemical cell comprising the composition. The source of Zn and source of chalcogenide in the cathode composition of a cell may be effective to improve the extractable capacity of cells, and decrease the cell resistance, relative to their absence. | 05-05-2011 |
20110111298 | COATED POSITIVE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES - High specific capacity lithium rich lithium metal oxide materials are coated with inorganic compositions, such as metal fluorides, to improve the performance of the materials as a positive electrode active material. The resulting coated material can exhibit an increased specific capacity, and the material can also exhibit improved cycling. The materials can be formed while maintaining a desired relatively high average voltage such that the materials are suitable for the formation of commercial batteries. Suitable processes are described for the synthesis of the desired coated compositions that can be adapted for commercial production. | 05-12-2011 |
20110111299 | LITHIUM ION BATTERIES WITH TITANIA/GRAPHENE ANODES - Lithium ion batteries having an anode comprising at least one graphene layer in electrical communication with titania to form a nanocomposite material, a cathode comprising a lithium olivine structure, and an electrolyte. The graphene layer has a carbon to oxygen ratio of between 15 to 1 and 500 to 1 and a surface area of between 400 and 2630 m | 05-12-2011 |
20110123866 | Methods and systems for making electrodes having at least one functional gradient therein and devices resulting therefrom - The invention disclosed herein provides for methods and apparatuses that yield electrodes having at least one functional gradient therein. In many embodiments, the electrodes comprise an electrode matrix having a plurality of layers, where at least two of the layers differs functionally, in composition, structure, or, organization. High-throughput electrode screening apparatuses are disclosed that include array formers and testers. Electrodes and battery cells arising from the methods and apparatuses disclosed herein are likewise disclosed. The methods, apparatuses, and resulting electrode and cell devices are, in some embodiments, ideally suited for use in lithium-ion batteries. | 05-26-2011 |
20110129733 | NEGATIVE ELECTRODE FOR LITHIUM BATTERY AND LITHIUM BATTERY INCLUDING NEGATIVE ELECTRODE - A negative electrode for a lithium battery and a lithium battery including the negative electrode, the negative electrode including: a matrix of a Sn grain and a metal M grain; and a carbon-based material grown on the matrix. | 06-02-2011 |
20110143204 | Lithium-Containing Electrode Material for Electrochemical Cell Systems - An electrode material is provided to include a Li-containing oxide of the formula of Li(Ni | 06-16-2011 |
20110151327 | ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides an electrode active material, an electrode and a nonaqueous electrolyte secondary battery. The electrode active material comprises a mixture of 10 parts by weight to 900 parts by weight of a first lithium mixed metal oxide and 100 parts by weight of a second lithium mixed metal oxide, wherein | 06-23-2011 |
20110200879 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode, and a non-aqueous electrolyte. The positive electrode active material includes a lithium-containing oxide obtained by ion exchanging a portion of sodium contained in a cobalt-containing oxide with lithium, the cobalt-containing oxide represented by the formula Li | 08-18-2011 |
20110206989 | Method for Producing Composite Lithium Iron Phosphate Material and Composite Lithium Iron Phosphate Material Produced by Same - A method for producing a composite lithium iron phosphate material, which comprises formulating lithium iron phosphate material and purified water at a weight ratio of 1:5-15 into a suspension solution, slowly adjusting the pH value of the suspension solution to 1-3 with phosphoric acid at a concentration of 5-30%, adding an analytically pure soluble chloride in an amount of 0.05-2% based on the molar amount of the lithium iron phosphate material; then adding ammonia water into the solution to adjust the pH value of the solution to 5-6 to obtain hydroxide colloid; drying liquid through spraying to prepare powder, and calcining at 300-450° C. for 3-6 hours under an inert atmosphere; coating the oxide with high conductivity obtained by thermally decomposing the hydroxide colloid on the surface of the lithium iron phosphate material grains; ball milling and sieving the calcined material into a finished product. Also disclosed is the composite lithium iron phosphate material produced by such a method. | 08-25-2011 |
20110212365 | Carbon-Coated Li-Containing Powders and Process for Production Thereof - The invention provides a new route for the synthesis of carbon-coated powders having the olivine or NASICON structure, which form promising classes of active products for the manufacture of rechargeable lithium batteries. Carbon-coating of the powder particles is necessary to achieve good performances because of the rather poor electronic conductivity of said structures. For the preparation of coated LiFePO | 09-01-2011 |
20110223482 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - An object of the present invention is to provide a positive electrode for a lithium secondary battery, which is capable of improving the initial coulomb efficiency of a lithium secondary battery, and the like. A positive electrode for a lithium secondary battery, which comprises lithium manganese iron phosphate and a lithium-nickel-manganese-cobalt composite oxide, is provided. | 09-15-2011 |
20110229764 | POWER STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - A power storage device comprising a positive electrode which includes in a positive electrode active material layer, lithium iron phosphate particles whose surface is supported by a carbon material and whose half width of the X-ray diffraction peak is less than or equal to 0.17°, or greater than or equal to 0.13° and less than or equal to 0.165′ or whose particle size is greater than or equal to 20 nm and less than 50 nm or greater than or equal to 30 nm and less than 40 nm; or a method for manufacturing a power storage device comprising the steps of mixing the lithium iron phosphate particles, a conduction auxiliary agent, and a binder so as to be a paste, and applying the paste on a current collector, thereby manufacturing a positive electrode. | 09-22-2011 |
20110229765 | Electrodes Comprising Mixed Active Particles - An electrode active material comprising two or more groups of particles having differing chemical compositions, wherein each group of particles comprises a material selected from:
| 09-22-2011 |
20110236757 | POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME - A power storage device with favorable battery characteristics and a manufacturing method thereof are provided. The power storage device includes at least a positive electrode and a negative electrode provided so as to face the positive electrode with an electrolyte provided therebetween. The positive electrode includes a collector and a film containing an active material over the collector. The film containing the active material contains Li | 09-29-2011 |
20110244330 | ELECTRODE CONFIGURATION FOR BATTERIES - An electrode for an electrochemical cell including a polymer substrate, a conductive material in contact with the polymer substrate, a conductive ink in contact with the conductive material, and an active electrode material in contact with the conductive ink. The conductive ink is configured to enhance the adhesion between the conductive material and the active electrode material. | 10-06-2011 |
20110269021 | LITHIUM ION BATTERY - A lithium ion battery includes a negative electrode, a positive electrode, an separator between the electrodes, and electrolyte for submerging the electrodes. The negative electrode is made of active materials including at least one lowly graphitized carbon material and least one highly graphitized carbon material. The positive electrode made of active materials including lithium ion, transition metal ion and polyanion. The polyanion is selected from the group consisting of phosphate, silicate, sulfate and hydrofluoric acid. The transition metal ion is selected from the group consisting of the divalent ions of iron and manganese. | 11-03-2011 |
20110269022 | POSITIVE ELECTRODE ACTIVE MATERIAL OF POWER STORAGE DEVICE, POWER STORAGE DEVICE, ELECTRICALLY PROPELLED VEHICLE, AND METHOD FOR MANUFACTURING POWER STORAGE DEVICE - An object is to improve the characteristics of a power storage device such as a charging and discharging rate or a charge and discharge capacity. The grain size of particles of a positive electrode active material is nano-sized so that a surface area per unit mass of the active material is increased. Specifically, the grain size is set to greater than or equal to 10 nm and less than or equal to 100 nm, preferably greater than or equal to 20 nm and less than or equal to 60 nm. Alternatively, the surface area per unit mass is set to 10 m | 11-03-2011 |
20110269023 | POWER STORAGE DEVICE - A power storage device including a positive electrode having a positive electrode active material and a positive electrode current collector; and a negative electrode which faces the positive electrode with an electrolyte provided between the negative electrode and the positive electrode is provided. The positive electrode active material includes a first region which includes a phosphate compound containing lithium and nickel; and a second region which covers the first region and includes a compound containing lithium and one or more of iron, manganese, and cobalt, but not containing nickel. Since the entire superficial portion of a particle of the positive electrode active material does not contain nickel, nickel is not in contact with an electrolyte solution; thus, generation of a catalyst effect of nickel can be suppressed, and a high discharge potential of nickel can be utilized. | 11-03-2011 |
20110274975 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY - It is an object of the present invention to provide a positive electrode material having a large ratio of the discharge capacity around 4 V to the total discharge capacity including the discharge capacity at 4V or lower while making the discharge capacity around 4 V sufficient, for the purpose of providing a lithium secondary battery using a lithium transition metal phosphate compound excellent in thermal stability, utilizing the discharge potential around 4V (vs. Li/Li | 11-10-2011 |
20110281166 | ELECTRODE COMPOSITION, ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE ELECTRODE AND LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE - An electrode composition containing a first conducting agent and a second conducting agent, an electrode for lithium secondary batteries, a method of manufacturing the electrode, and a lithium secondary battery including the electrode. The second conducting agent is an agglomerate formed of a conducting material and a fluorine-based polymer. | 11-17-2011 |
20110281167 | THIN FILM SOLID STATE LITHIUM ION SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A high-performance and inexpensive thin film solid state lithium ion secondary battery that is able to be charged and discharged in the air and is able to be manufactured stably at a favorable yield, and a method of manufacturing the same are provided. The thin film solid state lithium ion secondary battery has an electric insulating substrate | 11-17-2011 |
20110300446 | LITHIUM BATTERY CATHODE COMPOSITE MATERIAL - A lithium battery cathode composite material includes a number of composite particles. Each of the composite particles includes one lithium vanadium phosphate particle and a lithium iron phosphate layer. The lithium iron phosphate layer is disposed on a surface of the lithium vanadium phosphate particle. The lithium iron phosphate layer includes a number of uniformly disposed lithium iron phosphate particles. | 12-08-2011 |
20110305953 | 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 lithium metal oxide represented by the following Chemical Formula 1, a method of preparing the same, and a rechargeable lithium battery including the same. | 12-15-2011 |
20120003538 | POSITIVE ELECTRODE ACTIVE MATERIAL OF POWER STORAGE DEVICE, POSITIVE ELECTRODE OF POWER STORAGE DEVICE, POWER STORAGE DEVICE, MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL OF POWER STORAGE DEVICE - As a positive electrode active material, a material which is represented by the general formula Li | 01-05-2012 |
20120003539 | METHOD FOR MANUFACTURING ULTRA SMALL PARTICLE, POSITIVE ELECTRODE ACTIVE MATERIAL OF SECOND BATTERY USING THE METHOD FOR MANUFACTURING ULTRA SMALL PARTICLE AND METHOD FOR MANUFACTURING THE SAME, AND SECONDARY BATTERY USING THE POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR MANUFACTURING THE SAME - An object is to form a positive electrode active material having small and highly uniform particles by a simple process. A template is formed by forming holes in the template by a nanoimprinting method, and the template is filled with a gel-like LiFePO | 01-05-2012 |
20120003540 | METHOD OF MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY - A method of manufacturing a positive electrode active material for lithium ion batteries, comprising: preparing a mixture containing (A) Li | 01-05-2012 |
20120015249 | LITHIUM PHOSPHORUS COMPLEX OXIDE-CARBON COMPOSITE, METHOD FOR PRODUCING SAME, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY - A lithium phosphorus complex oxide-carbon composite which has high electrode density and is capable of improving the rate characteristics of a lithium secondary battery. Specifically disclosed is a lithium phosphorus complex oxide-carbon composite which is characterized by being an aggregate of lithium phosphorus complex oxide particles represented by general formula (1), the lithium phosphorus complex oxide particles aggregating via a conductive carbon material. The lithium phosphorus complex oxide-carbon composite is also characterized in that the aggregate has an average particle diameter of 1-30 μm and a tap density of not less than 0.8 g/cm | 01-19-2012 |
20120021290 | ELECTRIC POWER STORAGE SYSTEM - An electric power storage system, having application in energy systems, is primarily assembled from an electric power storage device and an electric power management system. In which, the electric power storage device is assembled from a first electric storage unit, a second electric storage unit and a super capacitance. Characteristics of the super capacitance are used to effect an electrical connection between the first electric storage unit and the second electric storage unit. The electric power management system is then used to implement management of energy resources. The present invention primarily uses the battery characteristics of lead acid batteries and lithium batteries (or lithium iron batteries) and management by the electric power management system to increase endurance and electric storage capacity the battery storage devices. The present invention further uses the characteristics of the super capacitance to enable the electric power storage system to implement momentary charging and discharging. | 01-26-2012 |
20120021291 | Method for Producing a Carbon Composite Material - The invention discloses a method for producing a carbon composite material, which includes the step of providing at least one carbon nanostructured composite material onto the surface of LiFePO4 particles to produce a LiFePO4/carbon nanostructured composite material. The carbon nanostructured composite material is obtained by synthesizing at least one nanostructured composite material to form the carbon nanostructured composite material. | 01-26-2012 |
20120028119 | ELECTRODE COMPOSITE MATERIAL, METHOD FOR MAKING THE SAME, AND LITHIUM ION BATTERY USING THE SAME - A cathode composite material includes a cathode active material particle having a surface and a continuous aluminum phosphate layer coated on the surface of the cathode active material particle. A material of the cathode active material particle is layered type lithium nickel manganese oxide. The present disclosure also relates to a lithium ion battery and a method for making the cathode composite material. | 02-02-2012 |
20120028120 | ELECTRODE COMPOSITE MATERIAL, METHOD FOR MAKING THE SAME, AND LITHIUM ION BATTERY USING THE SAME - A cathode composite material includes a cathode active material particle having a surface and a continuous aluminum phosphate layer coated on the surface of the cathode active material particle. A material of the cathode active material particle is layered type lithium nickel cobalt manganese oxide. The present disclosure also relates to a lithium ion battery and a method for making the cathode composite material. | 02-02-2012 |
20120028121 | PROCESS FOR PREPARING ELECTROACTIVE INSERTION COMPOUNDS AND ELECTRODE MATERIALS OBTAINED THEREFROM - A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process. | 02-02-2012 |
20120028122 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - The positive active material is a positive active material for a lithium secondary battery, including a lithium transition metal compound that has an olivine crystal structure and contains at least Ni, Fe, and Mn as transition metal elements, wherein when the sum of mole atoms of Ni, Fe, and Mn of transition metal elements contained in the lithium transition metal compound is expressed as 1, and the mole atomic ratios of Ni, Fe, and Mn are represented by a, b, and c (a+b+c=1, a>0, b>0, c>0), respectively, the following is satisfied: 0.85≦c≦0.92 and 0.3≦a/(a+b)≦0.9. | 02-02-2012 |
20120034526 | LITHIUM ION SECONDARY BATTERY AND BATTERY SYSTEM - This lithium ion secondary battery includes a cathode ( | 02-09-2012 |
20120058396 | OXIDATION-RESISTANT METAL SUPPORTED RECHARGEABLE OXIDE-ION BATTERY CELLS AND METHODS TO PRODUCE THE SAME - The invention describes the application of oxidation-resistant metal (preferably, stainless steel) | 03-08-2012 |
20120064409 | Graphene-enhanced anode particulates for lithium ion batteries - A nano graphene-enhanced particulate for use as a lithium-ion battery anode active material, wherein the particulate is formed of a single sheet of graphene or a plurality of graphene sheets and a plurality of fine anode active material particles with a size smaller than 10 μm. The graphene sheets and the particles are mutually bonded or agglomerated into the particulate with at least a graphene sheet embracing the anode active material particles. The amount of graphene is at least 0.01% by weight and the amount of the anode active material is at least 0.1% by weight, all based on the total weight of the particulate. A lithium-ion battery having an anode containing these graphene-enhanced particulates exhibits a stable charge and discharge cycling response, a high specific capacity per unit mass, a high first-cycle efficiency, a high capacity per electrode volume, and a long cycle life. | 03-15-2012 |
20120070742 | LITHIUM SECONDARY BATTERY WITH HIGH ENERGY DENSITY - The present invention relates to electrodes for a lithium secondary battery with a high energy density and a secondary battery with a high energy density using the same. A negative electrode includes a material which can be alloyed with lithium alloy. A positive electrode is made of a transition metal oxide which can reversibly intercalate or deintercalate lithium. Here, the entire reversible lithium storage capacity of the positive electrode is greater than the capacity of lithium dischargeable from the positive electrode. | 03-22-2012 |
20120088156 | METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR ENERGY STORAGE DEVICE AND ENERGY STORAGE DEVICE - An energy storage device having high capacity per weight or volume and a positive electrode active material for the energy storage device are manufactured. A surface of a main material included in the positive electrode active material for the energy storage device is coated with two-dimensional carbon. The main material included in the positive electrode active material is coated with a highly conductive material which has a structure expanding two-dimensionally and whose thickness is ignorable, whereby the amount of carbon coating can be reduced and an energy storage device having capacity close to theoretical capacity can be obtained even when a conduction auxiliary agent is not used or the amount of the conduction auxiliary agent is extremely small. Accordingly, the amount of carbon coating in a positive electrode and the volume of the conduction auxiliary agent can be reduced; consequently, the volume of the positive electrode can be reduced. | 04-12-2012 |
20120088157 | ELECTRODE MATERIAL, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE - To provide an electrode material with an increased capacity and a power storage device including the electrode material. Lithium iron phosphate having improved crystallinity is provided in which the lattice constant in the a-axis direction is greater than or equal to 10.3254×10 | 04-12-2012 |
20120100429 | POSITIVE ELECTRODE ACTIVE MATERIAL, PRODUCTION METHOD THEREOF AND ITS USE - A method of producing a positive electrode active material, comprising the steps of:
| 04-26-2012 |
20120100430 | CATHODE ACTIVE MATERIAL AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a cathode active material and a secondary battery including the same, wherein the cathode active material includes (a) a first lithium-containing metal composite oxide and (b) a second lithium-containing metal composite oxide coated on an entire particle surface of the first lithium-containing metal composite oxide particle, the second lithium-containing metal composite oxide having a higher resistance and a lower potential vs. lithium potential (Li/Li+) than the first lithium-containing metal composite oxide. | 04-26-2012 |
20120107691 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME - A positive active material for a lithium secondary battery comprises a core comprising a compound that can reversibly intercalate and deintercalate lithium; and a compound attached to the surface of the core and represented by Chemical Formula 1: | 05-03-2012 |
20120129050 | FLUOROSULPHATES USEFUL AS ELECTRODE MATERIALS - A material is made up of particles of an optionally-doped fluorosulphate. The fluorosulphate has a distorted Tavorite type structure of formula (A | 05-24-2012 |
20120129051 | POSITIVE ELECTRODE AND LITHIUM BATTERY UTILIZING THE SAME - Disclosed is a positive electrode applied in lithium battery and method for manufacturing the same. First, a lithium alloy oxide layer is formed on a substrate. Subsequently, an additional high density and low energy plasma treatment is processed, such that the lithium alloy oxide layer has a top surface composed of uniform, dense, and inter-necked nano grains, and the in-side/bottom grains of the oxide layer remain unchanged. According to experiments, the positive electrode with such properties has higher capacity and longer cycle lifetime, thereby improving the lithium battery performance. | 05-24-2012 |
20120148920 | POSITIVE ACTIVE MATERIAL FOR LITHIUM BATTERIES AND LITHIUM BATTERY INCLUDING THE SAME - A positive active material for lithium batteries, the positive active material comprising a lithium-nickel-iron oxide, and a lithium battery including the positive active material. The lithium-nickel-iron oxide is represented by Formula 1: Li | 06-14-2012 |
20120156565 | POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM BATTERY EMPLOYING THE POSITIVE ELECTRODE ACTIVE MATERIAL - In one aspect, a positive electrode active material is provided, a method of manufacturing the positive electrode active material, and a lithium battery employing the positive electrode active material. The positive electrode active material may have high thermal stability and low capacity deterioration despite repetitive charging and discharging. | 06-21-2012 |
20120164534 | GRAPHENE/LiFePO4 CATHODE WITH ENHANCED STABILITY - A lithium ion battery having an anode, an electrolyte, and a cathode comprising nano-structured carbon in electrical communication with LiFePO | 06-28-2012 |
20120183855 | Positive active electrode material for lithium secondary battery, process for preparing the same and lithium secondary battery - Positive active electrode material for lithium secondary batteries comprising a mixed oxide represented by the general formula Li | 07-19-2012 |
20120196185 | POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to a positive electrode active substance for non-aqueous electrolyte secondary batteries which comprises particles comprising a polyanionic compound and carbon, and a lipophilic treatment agent with which the respective particles are coated, wherein the positive electrode active substance has an average particle diameter of 1 to 50 μm. The positive electrode active substance preferably has an oil absorption of not more than 20 mL/100 g. The positive electrode active substance according to the present invention exhibits a good compatibility with a resin and is excellent in packing property and dispersibility in the resin, and therefore can provide an electrode sheet in which the positive electrode active substance is filled with a high packing density. | 08-02-2012 |
20120214067 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A negative electrode active material for a lithium ion secondary battery contains a lithium titanium complex oxide having a composition expressed as Li | 08-23-2012 |
20120231339 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a negative active material for a rechargeable lithium battery including lithium silicide having a I41-a crystalline phase structure, a method of manufacturing the same, and a rechargeable lithium battery including the same. | 09-13-2012 |
20120231340 | TRANSITION-METAL-CONTAINING HYDROXIDE AND LITHIUM-CONTAINING METAL OXIDE - The present invention provides a transition metal mixed hydroxide and a lithium mixed metal oxide. The transition metal mixed hydroxide consists of primary particles and approximately spherical secondary particles formed by aggregation of primary particles, and has an average particle diameter of from 1 μm to 20 μm and contains Mn, Ni, Fe and Co in a molar ratio of a:b:c:d, wherein a is from 0.3 to 0.7, b is from 0.4 to 0.7, c is more than 0 and not more than 0.1, d is from 0 to 0.2, and a+b+c+d=1. The lithium mixed metal oxide is produced by calcining a mixture of the transition metal mixed hydroxide and a lithium compound, and has an average particle diameter of from 1 μm to 20 μm. | 09-13-2012 |
20120237828 | NANOARCHITECTURED MULTI-COMPONENT ELECTRODE MATERIALS AND METHODS OF MAKING THE SAME - At least one embodiment of the present invention provides preparation methods and compositions for nanoarchitectured multi-component materials based on carbon-coated iron-molybdenum mixed oxide as the electrode material for energy storage devices. A sol-gel process containing soluble organics is a preferred method. The soluble organics could become a carbon coating for the mixed oxide after thermal decomposition. The existence of the carbon coating provides the mixed oxide with an advantage in cycling stability over the corresponding carbon-free mixed oxide. For the carbon-coated mixed oxide, a stable cycling stability at high charge/discharge rate (3A/g) can be obtained with Mo/Fe molar ratios ≧1/3. The cycling stability and rate capability could be tuned by incorporating a structural additive such as Al | 09-20-2012 |
20120244442 | BATTERY ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, a battery active material includes a complex oxide containing Nb and Ti and an element M. In the active material, the molar ratio (M/Ti) of the element M to Ti satisfies the following formula (I): 009-27-2012 | |
20120244443 | CATHODE ACTIVE MATERIAL, CATHODE ELECTRODE AND NON-AQUEOUS SECONDARY BATTERY - A cathode active material comprising a composition represented by the following general formula (1): | 09-27-2012 |
20120258362 | ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING ELECTRODE ACTIVE MATERIAL, ELECTRODE INCLUDING ELECTRODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING ELECTRODE - An electrode active material, a method of preparing the electrode active material, an electrode including the electrode active material, and a lithium secondary battery including the electrode; the electrode active material comprising a core active material; and a coating layer formed on a surface of the core active material, wherein the coating layer comprises a composition including a compound represented by Formula 1 below and a carbonaceous material, or a first coating layer including a carbonaceous material and a second coating layer including the compound represented by Formula 1 below: | 10-11-2012 |
20120258363 | POSITIVE-ELECTRODE MATERIAL FOR A LITHIUM ION SECONDARY BATTERY AND MANUFACTURING METHOD OF THE SAME - Provided is a positive electrode material for a safe, high capacity, long lifetime lithium ion secondary battery capable of large current charging and discharging. The positive electrode material contains between 5% by mass or more and 30% by mass or less of a carbon black composite formed by joining together fibrous carbon and carbon black wherein ash is 1.0% or less by mass in accordance with JIS K 1469 and the remainder includes olivine-type lithium iron phosphate, and volatile oxygen-containing functional groups which constitutes 1.0% or less by mass of the positive electrode material. The fibrous carbon is preferably a nanotube having a fiber diameter of 5 nm or more and 50 nm or less and a specific surface area between 50 m | 10-11-2012 |
20120264019 | ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND SODIUM SECONDARY BATTERY - The present invention provides an electrode active material, an electrode and a sodium secondary battery. The electrode active material contains the following powder (A) and powder (B):
| 10-18-2012 |
20120288763 | CATHODE ACTIVE MATERIAL, CATHODE ELECTRODE, AND NON-AQUEOUS SECONDARY BATTERY - A cathode active material comprising a composition represented by the following general formula (1): | 11-15-2012 |
20120288764 | NOVEL POSITIVE ELECTRODE FOR SECONDARY BATTERY - Disclosed herein are a cathode for a secondary battery, which includes a combination of one or more selected from compounds represented by Formula 1 and or more selected from compounds represented by Formula 2, as illustrated below, and a secondary battery having the same, | 11-15-2012 |
20120288765 | CATHODE OF LITHIUM BATTERY AND METHOD FOR FABRICATING THE SAME - A cathode of the lithium battery includes a composite film. The composite film includes a carbon nanotube film structure and a plurality of active material particles dispersed in the carbon nanotube film structure. | 11-15-2012 |
20120295161 | LITHIUM ION BATTERY CATHODE AND LITHIUM ION BATTERY USING THE SAME - The present disclosure relates to a lithium ion battery cathode. The lithium ion battery cathode includes a plurality of cathode active material particles and a conductive carrier. The conductive carrier includes a plurality of carbon nanotubes. The plurality of carbon nanotubes are entangled with each other to form a net structure. The present disclosure also relates to a lithium ion battery. | 11-22-2012 |
20120295162 | POSITIVE ELECTRODE MATERIAL FOR A LITHIUM-ION ACCUMULATOR - A compound of formula Li | 11-22-2012 |
20120308891 | METHOD OF MANUFACTURING ELECTRODE - To increase the conductivity and electric capacity of an electrode which includes active material particles and the like and is used in a battery, a graphene net including 1 to 100 graphene sheets is used instead of a conventionally used conduction auxiliary agent add binder. The graphene net which has a two-dimensional expansion and a three-dimensional structure is more likely to touch active material particles or another conduction auxiliary agent, thereby increasing the conductivity and the bonding strength between active material particles. This graphene net is obtained by mixing graphene oxide and active material particles and then heating the mixture in a vacuum or a reducing atmosphere. | 12-06-2012 |
20120308892 | HIGH-POWER LITHIUM-ION STORAGE BATTERY - A Lithium-ion storage battery includes: LiFePO | 12-06-2012 |
20120308893 | POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An object is to provide a positive active material for nonaqueous electrolyte secondary battery, which is capable of providing a battery with excellent cycle performance. Provided are a positive active material for nonaqueous electrolyte secondary battery, which includes an Fe-containing lithium vanadium phosphate compound having a NASICON-type structure, wherein in the Fe-containing lithium vanadium phosphate compound, the percentage of iron atoms relative to the sum of vanadium and iron atoms is 2% or more and 20% or less; and the like. | 12-06-2012 |
20120321957 | CONDUCTOR HAVING A PERMEATION REGION - Conductor for an electrode of an electrochemical energy storage means, in particular of, essentially, prismatic shape, with a passage region through which electrons may enter into the conductor or through which electrons may exit from the conductor. | 12-20-2012 |
20120321958 | FERROUS PHOSPHATE (II) POWDERS, LITHIUM IRON PHOSPHATE POWDERS FOR LI-ION BATTERY, AND METHODS FOR MANUFACTURING THE SAME - Ferrous phosphate (II) (Fe | 12-20-2012 |
20120328947 | LiFePO4 FLAKES FOR Li-ION BATTERY AND METHOD FOR MANUFACTURING THE SAME | 12-27-2012 |
20130004848 | Particle Size Distribution Variations in Iron Disulfide Cathodes - A cathode, electrochemical cell and process for making either is disclosed. The cathode includes iron disulfide which exhibits multiple peaks representing distinct maxima of mean diameters for the volume-based particle size distribution. All of the maxima are less than 20 microns. A combination of natural pyrite ore and synthetic iron disulfide may be mixed to achieve the desired distribution, or a combination of natural pyrite ores may be processed in different manners to achieve the desired characteristics. | 01-03-2013 |
20130011738 | CATHODE MATERIAL OF LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A cathode material of a lithium ion secondary battery is provided, which includes a cathode active material and a glassy material coating on a surface of the cathode active material. The glassy material is capable of selectively allowing lithium ions to pass therethrough. The lithium ion secondary battery using the cathode material has the long cycle life and the high safety performance. | 01-10-2013 |
20130011739 | PROCESS FOR PREPARING ELECTROACTIVE INSERTION COMPOUNDS AND ELECTRODE MATERIALS OBTAINED THEREFROM - A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process. | 01-10-2013 |
20130017447 | Positive Electrode Material - An electrode material comprising a Li | 01-17-2013 |
20130022873 | HIGH-POWER NANOCOMPOSITE CATHODES FOR LITHIUM ION BATTERIES - A method of growing electrochemically active materials in situ within a dispersed conductive matrix to yield nanocomposite cathodes or anodes for electrochemical devices, such as lithium-ion batteries. The method involves an in situ formation of a precursor of the electrochemically active materials within the dispersed conductive matrix followed by a chemical reaction to subsequently produce the nanocomposite cathodes or anodes, wherein: the electrochemically active materials comprise nanocrystalline or microcrystalline electrochemically active metal oxides, metal phosphates or other electrochemically active materials; the dispersed conductive matrix forms an interconnected percolation network of electrically conductive filaments or particles, such as carbon nanotubes; and the nanocomposite cathodes or anodes comprise a homogeneous distribution of the electrochemically active materials within the dispersed conductive matrix. | 01-24-2013 |
20130029227 | POLYANION ACTIVE MATERIALS AND METHOD OF FORMING THE SAME - A method of forming a polyanion active material that includes providing a carbon source, providing a mobile ion source, providing an active metal material, providing a network material, providing a flux material, and mixing the various materials. In one aspect, the mixing step may include grinding or pulverizing materials to a uniform fine mixture. In one aspect, a ball mill may be utilized to mix the components. Following the mixing of the materials, the mixture is heated to a predetermined temperature in a non-oxidizing atmosphere to form a reaction product. In one aspect, the mixture is heated to a temperature above a melting temperature of the flux material. In this manner, the flux material provides a medium in which the various reactants may react to form the desired reaction product. Following the heating of the mixture the reaction product is washed, forming a carbon coated polyanion active material. Also disclosed is a polyanion active material that includes the in situ reaction product of a carbon source, mobile ion source, active metal material, network material, and a flux material wherein the polyanion active material includes a carbon coating formed thereon. | 01-31-2013 |
20130065129 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Provided is a positive electrode for a rechargeable lithium battery including a positive active material including a lithium phosphate compound particle and fiber-type carbon attached inside the lithium phosphate compound particle, a method of preparing the same, and a rechargeable lithium battery including the same. | 03-14-2013 |
20130065130 | METHOD OF FABRICATING ELECTRODES INCLUDING HIGH-CAPACITY, BINDER-FREE ANODES FOR LITHIUM-ION BATTERIES - An electrode ( | 03-14-2013 |
20130071746 | NEGATIVE-ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE AND BATTERY - A negative-electrode active material includes a compound that has a pseudobrookite structure. | 03-21-2013 |
20130071747 | High Density Lithium Cobalt Oxide for Rechargeable Batteries - The disclosure relates to positive electrode material used for Li-ion batteries, a precursor and process used for preparing such materials, and Li-ion battery using such material in its positive electrode. The disclosure describes a higher density LiCoO | 03-21-2013 |
20130078517 | ELECTRODE ACTIVE MATERIAL, ELECTRODE COMPRISING THE SAME, LITHIUM BATTERY COMPRISING THE ELECTRODE, AND METHOD OF PREPARING THE ELECTRODE ACTIVE MATERIAL - An electrode active material, an electrode including the electrode active material, a lithium battery including the electrode, and a method of preparing the electrode active material. The electrode active material includes a core having at least one of a metal or a metal oxide that enables intercalation and deintercalation of lithium ions and a crystalline carbon thin film that is formed on at least a portion of a surface of the core. The electrode active material has a nano-structure. | 03-28-2013 |
20130078518 | Electrode Structures and Surfaces For Li Batteries - This invention relates to positive electrode materials for electrochemical cells and batteries. It relates, in particular, to electrode precursor materials comprising manganese ions and to methods for fabricating lithium-metal-oxide electrode materials and structures using the precursor materials, notably for lithium cells and batteries. More specifically, the invention relates to lithium-metal-oxide electrode materials with layered-type structures, spinel-type structures, combinations thereof and modifications thereof, notably those with imperfections, such as stacking faults and dislocations. The invention extends to include lithium-metal-oxide electrode materials with modified surfaces to protect the electrode materials from highly oxidizing potentials in the cells and from other undesirable effects, such as electrolyte oxidation, oxygen loss and/or dissolution. | 03-28-2013 |
20130078519 | PRODUCTION PROCESS FOR LITHIUM-SILICATE-BASED COMPOUND - A production process for lithium-silicate-based compound according to the present invention is characterized in that: a lithium-silicate compound being expressed by Li | 03-28-2013 |
20130089786 | ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE ELECTRODE ACTIVE MATERIAL, ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE SAME, AND LITHIUM SECONDARY BATTERY USING THE SAME - An electrode active material for a lithium secondary battery, a method of preparing the electrode active material, an electrode for a lithium secondary battery which includes the same, a lithium secondary battery using the electrode. The electrode active material includes a core active material and a coating layer including magnesium aluminum oxide (MgAlO | 04-11-2013 |
20130095384 | COMPOSITE OF METAL OXIDE NANOPARTICLES AND CARBON, METHOD OF PRODUCTION THEREOF, ELECTRODE AND ELECTROCHEMICAL ELEMENT EMPLOYING SAID COMPOSITE - A composite powder in which highly dispersed metal oxide nanoparticle precursors are supported on carbon is rapidly heated under nitrogen atmosphere, crystallization of metal oxide is allowed to progress, and highly dispersed metal oxide nanoparticles are supported by carbon. The metal oxide nanoparticle precursors and carbon nanoparticles supporting said precursors are prepared by a mechanochemical reaction that applies sheer stress and centrifugal force to a reactant in a rotating reactor. The rapid heating treatment in said nitrogen atmosphere is desirably heating to 400° C.-1000° C. By further crushing the heated composite, its aggregation is eliminated and the dispersity of metal oxide nanoparticles is made more uniform. Examples of a metal oxide that can be used are manganese oxide, lithium iron phosphate, and lithium titanate. Carbons that can be used are carbon nanofiber and Ketjen Black. | 04-18-2013 |
20130095385 | CARBON-CONTAINING COMPOSITE MATERIAL CONTAINING AN OXYGEN-CONTAINING LITHIUM TRANSITION METAL COMPOUND - The present invention relates to a carbon-containing composite material of particles of an oxygen-containing lithium transition metal compound which are coated with essentially two carbon-containing layers, a method for its production as well as an electrode containing the composite material. | 04-18-2013 |
20130108925 | ELECTRODE, FREE OF ADDED CONDUCTIVE AGENT, FOR A SECONDARY LITHIUM-ION BATTERY | 05-02-2013 |
20130115514 | POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - Provided is a positive electrode active material giving nonaqueous-electrolyte secondary batteries superior in cycle characteristics. The positive electrode active material according to the present invention includes a lithium-containing composite metal oxide having the composition represented by the following General Formula (1): | 05-09-2013 |
20130122372 | Spinel-Type Lithium Transition Metal Oxide and Positive Electrode Active Material for Lithium Battery - Provided is spinel-type lithium transition metal oxide (LMO) used as a positive electrode active material for lithium battery, said LMO being capable of simultaneously achieving all output characteristics (rate characteristics), high temperature cycle life characteristics, and rapid charging characteristics. The disclosed is spinel-type lithium transition metal oxide including, besides Li and Mn, one or more elements selected from a group consisting of Mg, Ti, Ni, Co, and Fe, and having crystallite size of between 200 nm and 1000 nm and strain of 0.0900 or less. Because the crystallite size is markedly large, oxygen deficiency is markedly little, and the structure is strong, when the LMO is used as a positive electrode active material for lithium secondary batteries, all output characteristics (rate characteristics), high temperature cycle life characteristics, and rapid charging characteristics can be achieved simultaneously. | 05-16-2013 |
20130122373 | LITHIUM ION SECONDARY BATTERY - Provided is a lithium ion secondary battery which is low in capacity drop of the battery during fast-charge and has high energy density. In the present lithium ion secondary battery, the positive electrode contains a lithium nickel manganese oxide represented by formula (I): | 05-16-2013 |
20130130111 | Hydrothermal Process for the Production of LiFePO4 Powder - The present invention relates to a process for the production of LiFePO | 05-23-2013 |
20130136989 | LITHIUM ION PHOSPHATE HIERARCHICAL STRUCTURE, METHOD FOR MAKING THE SAME, AND LITHIUM ION BATTERY USING THE SAME - A lithium iron phosphate hierarchical structure includes a plurality of lithium iron phosphate nano sheets and has an overall spherical-shaped structure. The overall spherical-shaped structure is constructed by a plurality of lithium iron phosphate nano sheets layered together. A method for making a lithium iron phosphate hierarchical structure includes several steps. In the method, a lithium ion contained liquid solution, a ferrous ion contained liquid solution, and a phosphate ion contained liquid solution are respectively provided. A concentration of lithium ions in the lithium ion contained liquid solution is equal to or larger than 1.8 mol/L. The lithium ion contained liquid solution, the ferrous ion contained liquid solution, and the phosphate ion contained liquid solution are mixed to form a liquid mixture. The liquid mixture is heated in a sealed reactor to form the lithium iron phosphate hierarchical structure. | 05-30-2013 |
20130143122 | CARBON-TREATED CATHODE MATERIAL USABLE FOR BATTERIES AND METHOD OF MAKING SAME - A method for preparing a cathode material is provided, which includes: providing particles of a cathode material; coating a carbon layer onto the particles of the cathode material, in which the carbon layer is formed of a carbon-containing compound; and mixing the carbon-containing compound with the particles at a temperature equal to or lower than 0° C. According to the method, the lithium ferrous phosphate powder does not agglomerate in the carbon coating process, and the carbon-coated particles have slightly increased volumes so that the nano-lithium ferrous phosphate material maintains its nano size after being coated with carbon. | 06-06-2013 |
20130143123 | MESOPOROUS METAL PHOSPHATE MATERIALS FOR ENERGY STORAGE APPLICATION - Mesoporous particles each including LiFePO | 06-06-2013 |
20130149607 | ELECTROCHEMICAL COMPOSITION AND ASSOCIATED TECHNOLOGY - A composition including a first material and a metal or a metal oxide component for use in an electrochemical redox reaction is described. The first material is represented by a general formula M | 06-13-2013 |
20130157133 | Process for Producing Defect-Free Lithium Metal Phosphate Electrode Materials - A method of synthesizing defect-free phospho-olivine materials is disclosed. The method is based on direct hydrothermal synthesis of phospho-olivine compound(s) and subsequent lattice reordering at or near the transition temperature to eliminate lattice defects or on one-pot in situ hydrothermal synthesis of phospho-olivine compound(s), where the cation ordering occurs during dwell time after rapid synthesis to eliminate lattice defects. The disclosed methods produce defect-free phospho-olivine compound(s) having a crystal lattice with a Pnma space group. In order to determine the exact transition temperature for complete removal of single- or mixed-transition metals from lithium sites or to monitor the crystal growth and removal of single- or mixed-transition metals from lithium sites during the hydrothermal synthesis, the method encompasses a procedure for determining and monitoring defects in the phospho-olivine phases using X-ray diffraction. | 06-20-2013 |
20130157134 | METHOD OF PRODUCING IRON PHOSPHATE, LITHIUM IRON PHOSPHATE, ELECTRODE ACTIVE SUBSTANCE, AND SECONDARY BATTERY - A mixed aqueous solution is prepared in which a phosphorus source, a divalent Fe compound, and an oxidant are mixed at a predetermined ratio. Then, this mixed aqueous solution is dropwise added into a buffer solution having a pH value of 1.5 to 9, thereby to produce a precipitated powder of FePO | 06-20-2013 |
20130157135 | LITHIUM SALT-GRAPHENE-CONTAINING COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF - A lithium salt-graphene-containing composite material and its preparation method are provided. The composite material has the microstructure which comprises carbon nanoparticles, lithium salt nanocrystals and graphene, wherein the surface of lithium salt nanocrystals is coated with carbon nanoparticles and graphene. The preparation method comprises concentrating and drying a mixed solution, then calcinating the solid. The lithium salt-graphene-containing composite material has excellent electric performance and stability since the problem of low electric performance resulted from carbon coating on the surface of lithium salt or coating imperfection resulted from graphene coating on the surface of lithium salt is effectively solved. For the more uniform and compacted combination between graphene and lithium salt nanocrystals, the graphene will not fall off and the composite material has a high capacity ratio, energy density and conductivity. Furthermore, particle agglomeration and growing up are reduced in the process of calcination. | 06-20-2013 |
20130164622 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A positive active material for a rechargeable lithium battery including a compound represented by the following Chemical Formula 1: | 06-27-2013 |
20130171523 | LITHIUM-ION SECONDARY BATTERY AND THE CATHODE MATERIAL THEREOF - The present invention relates to the field of lithium-ion battery, and particularly to high-capacity cathode material, and high-energy density lithium-ion secondary battery prepared using the same. The cathode material comprises cathode active material, a binder and a conductive agent, in which the cathode active material is a compound material of lithium cobalt oxide-based active material A and nickel-based active material B pretreated before being mixed, and the mass ratio B/A of the lithium cobalt oxide-based active material A and nickel-based active material B is between 0.82 and 9. The present invention can produce a battery having both larger capacity and higher energy density, and address the problem of gas generation in the battery at high temperature. | 07-04-2013 |
20130171524 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed is a positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the positive active material. The positive active material includes a lithiated intercalation compound capable of reversibly intercalating and deintercalating lithium and a metal oxide represented by the following Chemical Formula 1. | 07-04-2013 |
20130189579 | Material Engineering for High Performance Li-ion Battery Electrodes - A method of treating an electrode for a battery to enhance its performance is disclosed. By depositing a layer of porous carbon onto the electrode, its charging and discharging characteristics, as well as chemical stability may be improved. The method includes creating a plasma that includes carbon and attracting the plasma toward the electrode, such as by biasing a platen on which the electrode is disposed. In some embodiments, an etching process is also performed on the deposited porous carbon to increase its surface area. The electrode may also be exposed to a hydrophilic treatment to improve its interaction with the electrolyte. In addition, a battery which includes at least one electrode treated according to this process is disclosed. | 07-25-2013 |
20130189580 | STRONGLY COUPLED INORGANIC-GRAPHENE HYBRID MATERIALS, APPARATUSES, SYSTEMS AND METHODS - Nanocarbon-based materials are provided in connection with various devices and methods of manufacturing. As consistent with one or more embodiments, an apparatus includes a nanocarbon structure having inorganic particles covalently bonded thereto. The resulting hybrid structure functions as a circuit node such as an electrode terminal. In various embodiments, the hybrid structure includes two or more electrodes, at least one of which including the nanocarbon structure with inorganic particles covalently bonded thereto. | 07-25-2013 |
20130196233 | NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE - A negative active material for a rechargeable lithium battery includes a Si—Al—Fe alloy represented by Formula 1. The Si—Al—Fe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2: | 08-01-2013 |
20130209884 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A negative electrode active material for lithium ion secondary batteries of the present invention includes a lithium-titanium composite oxide that has a composition represented by Li | 08-15-2013 |
20130216911 | ACTIVE MATERIAL, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC ENERGY STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC UNIT - A secondary battery includes: a cathode; an anode; and an electrolytic solution. The cathode includes two or more kinds of lithium transition metal complex phosphate particles including lithium and one or two or more transition metals as constituent elements, and the composition of the one or two or more transition metals differs between the two or more kinds of lithium transition metal complex phosphate particles. | 08-22-2013 |
20130216912 | ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE ELECTRODE, AND LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE - An electrode for a lithium secondary battery includes a silicon-based alloy, and has a surface roughness of about 1 to about 10 μm and a surface roughness deviation of 5 μm or less. A method of manufacturing the electrode includes mixing an electrode composition, milling the composition, coating the milled composition on a current collector, and drying the milled composition. A lithium secondary battery includes the electrode. | 08-22-2013 |
20130216913 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery comprises: a positive electrode containing a lithium-transition metal complex oxide having a layered structure as a positive electrode active material; a negative electrode containing a negative electrode active material capable of occluding and releasing lithium ions; and a nonaqueous electrolyte, wherein the lithium-transition metal complex oxide is represented by the general formula Li | 08-22-2013 |
20130230774 | NOVEL ELECTRODES AND RECHARGEABLE BATTERIES - The present invention provides cathodes, methods of making cathodes, and electrochemical cells (e.g., batteries) that employ these cathodes having improved properties over traditional cathodes, methods, or electrochemical cells. | 09-05-2013 |
20130236787 | POSITIVE ELECTRODE ACTIVE MATERIAL, PROCESS FOR PRODUCING SAME, AND LITHIUM SECONDARY BATTERY USING SAME (AS AMENDED) - An object of the present invention is to provide a high-capacity, low cycle deterioration lithium secondary battery in which the positive electrode is provided with a titanium composite oxide such as Li | 09-12-2013 |
20130252107 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING POSITIVE ELECTRODE ACTIVE MATERIAL - Provided is a positive electrode active material for a lithium ion secondary battery including layer-structured lithium metal oxide expressed by the following Chemical Formula 1 and at least one selected from the group consisting of spinel-structured lithium metal oxides and olivine-structured lithium metal oxides. | 09-26-2013 |
20130260246 | Lithium-ion cell having a high energy density and high power density - A lithium-ion cell comprising: (A) a cathode comprising graphene as the cathode active material having a surface area to capture and store lithium thereon and wherein said graphene cathode is meso-porous having a specific surface area greater than 100 m | 10-03-2013 |
20130260247 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery includes a positive electrode including a positive electrode active material having a composition represented by the formula (1) | 10-03-2013 |
20130260248 | ACTIVE MATERIAL AND LITHIUM ION SECONDARY BATTERY - An active material has a layered structure and a composition represented by the following formula (1) Li | 10-03-2013 |
20130266867 | ANODE ACTIVE MATERIAL AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed are an anode active material for secondary batteries, capable of intercalating and deintercalating ions, the anode active material including a core including a crystalline carbon-based material, and a composite coating layer including one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon, and a hydrophilic material containing oxide capable of intercalating and deintercalating ions, wherein the composite coating layer includes a matrix comprising one component selected from (a) the one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon and (b) the hydrophilic material containing oxide capable of intercalating and deintercalating ions, and a filler including the other component, incorporated in the matrix, and a secondary battery including the anode active material. | 10-10-2013 |
20130280610 | ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY COMPOSITE ELECTRODE FOR IMPROVING OUTPUT AND LITHIUM SECONDARY BATTERY INCLUDING THE ACTIVE MATERIAL - Provided is a composite electrode for a lithium secondary battery for improving output and a lithium secondary battery including the composite electrode, in which, in a composite electrode having two or more active materials mixed therein, an active material having a small particle size is included in the composite electrode by being coagulated and secondarily granulated so as to allow mixed active material particles to have a uniform size, and thus, electrical conductivity is improved to have high output characteristics. | 10-24-2013 |
20130302685 | COMPOSITE CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM BATTERY EACH USING THE SAME - In one aspect, a composite cathode active material including at least one large-diameter active material, and at least one small-diameter active material, a cathode including the composite cathode active material and a lithium battery including the cathode is provided. | 11-14-2013 |
20130302686 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode material for non-aqueous electrolyte secondary batteries having high rate characteristics and high energy density, and a battery using the same are provided. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode material, a conductive agent and a binder; a negative electrode; a separator; and a non-aqueous electrolyte, in which the positive electrode material contains core particles and a coating material that covers from 10% to 90% of the surfaces of the core particles, the core particles are formed of a compound represented by Li | 11-14-2013 |
20130309574 | SILICON OXIDE PARTICLES, MAKING METHOD, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - Silicon oxide particles each comprising an inner portion having an iron content of 10-1,000 ppm and an outer portion having an iron content of up to 30 ppm are suitable as negative electrode active material in nonaqueous electrolyte secondary batteries. Using a negative electrode comprising the silicon oxide particles as active material, a lithium ion secondary battery or electrochemical capacitor having a high capacity and improved cycle performance can be constructed. | 11-21-2013 |
20130316240 | POSITIVE ACTIVE MATERIAL AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - The present invention provides a positive active material including a lithium-containing compound represented by the following Chemical Formula 1 and a rechargeable lithium battery including the positive active material. | 11-28-2013 |
20130316241 | Positive Electrode Active Material for a Lithium Secondary Battery, Method for Preparing Same, and Lithium Secondary Battery Comprising Same - Provided is a high-capacity positive electrode active material, and more particularly, a high-capacity positive electrode active material for a lithium secondary battery containing a composite oxide of the following Chemical Formula 1. | 11-28-2013 |
20130323595 | LITHIUM ION BATTERY ELECTRODE MATERIALS AND METHODS OF MAKING THE SAME - An example of a lithium ion battery electrode material includes a substrate, and a substantially graphitic carbon layer completely encapsulating the substrate. The substantially graphitic carbon layer is free of voids. Methods for making electrode materials are also disclosed herein. | 12-05-2013 |
20130323596 | POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, NONAQUEOUS ELECTROLYTE CELL, AND METHOD OF PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL - Disclosed herein is a positive electrode active material prepared by mixing a lithium-containing compound, a compound containing a transition metal to be put into a solid solution, and a compound containing a metallic element M2 different from the transition metal, and firing the mixture to form composite oxide particles, depositing a compound containing at least one element selected from among sulfur (S), phosphorus (P) and fluorine (F) on surfaces of the particles, and firing the particles, whereby each of the particles is provided with a concentration gradient such that the concentration of the metallic element M2 increases from the center toward the surface of the particle, and at least one element selected from among (S), (P) and (F) is made present in the form of being aggregated at the surfaces of the composite oxide particles. | 12-05-2013 |
20130323597 | METHOD FOR THE PRODUCTION OF AN LMO PRODUCT - A fused product including lithium-manganese spinel, which is optionally doped, having a spinel structure AB | 12-05-2013 |
20130330624 | LITHIUM TITANATE DOPED WITH BARIUM OXIDE, MANUFACTURING METHOD THEREOF AND LITHIUM ION BATTERY USING THE SAME - A lithium titanate doped with a barium oxide and a manufacturing method thereof are provided. At first, a barium source material, a lithium source material and a titanium source material are mixed together to prepare a mixture. Then, a drying process is applied to the mixture. Thereafter, a sintering process is applied to the mixture after the drying process, thereby obtaining the lithium titanate doped with the barium oxide. The lithium titanate doped with the barium oxide has the following chemical formula: Ba | 12-12-2013 |
20130337329 | ELECTRODE ACTIVE MATERIAL AND METHOD OF PRODUCING THE SAME - Provided is an electrode active material that is obtained by coating a surface of each particle of Li | 12-19-2013 |
20130337330 | Spinel-Type Lithium Manganese-Based Composite Oxide - Regarding Spinel-type lithium manganese-based composite oxide (LMO) to be used as a positive electrode active substance material for lithium battery, a novel LMO is provided, which is capable of maintaining discharge capacity even if charging and discharging are repeated under high temperatures. An LMO in which the crystallite size is 250 nm to 350 nm, the strain is 0.085 or less and the specific surface area increase rate when placed in water at 25° and pH 7 and ultrasonically dispersed at 40 W ultrasonic intensity for 600 seconds is 10.0% or less, can prevent a decrease in the output that accompanies the repetition of charging and discharging while at a high temperature. | 12-19-2013 |
20130344386 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE SAME, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY EMPLOYING THE POSITIVE ELECTRODE - A positive active material for a lithium secondary battery is a compound represented by Formula 1 and is in a form of primary particles having a particle diameter in a range of 80 to 400 nm. Formula 1: Li | 12-26-2013 |
20140004422 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR MAGNESIUM SECONDARY BATTERY, MAGNESIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR MAGNESIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING MAGNESIUM SECONDARY BATTERY | 01-02-2014 |
20140045068 | POSITIVE ELECTRODE ACTIVE SUBSTANCE PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides positive electrode active substance particles which are improved in charge/discharge capacities, cycle characteristics and thermal stability. The positive electrode active substance particles according to the present invention comprise a compound having at least a crystal system belonging to a space group of R-3m and a crystal system belonging to a space group of C2/m and having a specific peak intensity ratio, in which a content of Mn in the compound is controlled such that a molar ratio of Mn/(Ni+Co+Mn) therein is not less than 0.55; a content of boron in the compound is 0.01 to 1% by weight; a content of fluorine in the compound is 0.01 to 5% by weight; and a content of an element A (at least one element selected from the group consisting of Al, Mg, Ti, Zr, Ca, Fe, Zn, Mo and Bi) in the compound is 0.004 to 9% by weight, and can be produced by calcining a mixture comprising precursor particles comprising Mn and Ni and/or Co, a lithium compound, a boron compound, a fluorine compound and a compound of the element A. | 02-13-2014 |
20140045069 | LITHIUM SECONDARY CELL - Provided is a lithium secondary cell in which elution of manganese from a manganese olivine compound into an electrolyte is suppressed, a high level of safety is obtained, the charge/discharge cycle efficiency and suppression of leakage of manganese during storage can be maintained over a long period, a long lifespan is obtained, a rapid decrease in cell voltage near the end of discharge is suppressed, and output characteristics are enhanced, when a manganese olivine compound having excellent stability during charge/discharge is used as the principal component in the positive electrode active material. The positive electrode contains a positive electrode active material containing an olivine compound represented by LiMm | 02-13-2014 |
20140057178 | ANODES OF LITHIUM BATTERY - An anode of a lithium battery includes a carbon nanotube film structure and an anode active material. The carbon nanotube film structure includes a number of carbon nanotubes joined by van der Waals force therebetween. The anode active material is located on surface of the carbon nanotubes to form a tubular structure. | 02-27-2014 |
20140065482 | METHOD FOR FORMING BATTERY ACTIVE SUPER-IRON NANOPARTICLES AND STORAGE BATTERY - A method for forming nanometer-sized super-iron salt particles and a storage battery having the nanometer-sized super oxidized iron salts is provided. The method includes providing super-iron salts, and grinding the super-iron salts to nanometer-sized super-iron salt particles in a water-free environment. | 03-06-2014 |
20140079998 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a positive electrode active material capable of obtaining high capacity density and also capable of obtaining sufficient charge-discharge characteristics in a region which involves high current density, when the positive electrode active material is used in a non-aqueous electrolyte secondary battery. The positive electrode active material for the non-aqueous electrolyte secondary battery includes FeF3 in which at least a part of a surface thereof is coated with an electroconductive metal oxide. | 03-20-2014 |
20140079999 | CATHODE MATERIAL - The present invention provides a cathode material that can achieve a high energy density and excellent instantaneous output characteristics in lithium ion secondary batteries. The cathode material is used in a lithium ion secondary battery | 03-20-2014 |
20140087259 | 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 spinel type lithium nickel manganese 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 |
20140087260 | POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, AND BATTERY SYSTEM - Provided is a positive electrode for a lithium ion secondary battery including, as a positive active material, a positive active material (A) that is LiFePO | 03-27-2014 |
20140099550 | SODIUM ION BATTERY SYSTEM - The problem of the present invention is to provide a sodium ion battery system with high charge and discharge efficiency. The present invention solves the above-mentioned problem by providing a sodium ion battery system comprising a sodium ion battery and a charge control unit, wherein the anode active material is an active material having an Na | 04-10-2014 |
20140106225 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode containing active material particles composed of a core section formed of olivine type LiFePO | 04-17-2014 |
20140106226 | LITHIUM ION SECONDARY CELL - Provided is a negative-electrode active material, which is capable of constituting a lithium ion secondary cell exhibiting excellent cell characteristics. | 04-17-2014 |
20140113195 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERIES, METHOD FOR PRODUCTION THEREOF, AND LITHIUM-ION SECONDARY BATTERY PROVIDED THEREWITH - Disclosed is a negative electrode active material for lithium-ion secondary batteries which contributes to high capacity, high energy density, and safety and a lithium-ion secondary battery provided with the negative electrode active material. The negative electrode active material is an oxide containing Li and Fe and having crystalline and amorphous phases of LiFeO2 such that there is a specific ratio ranging from 13.2 to 100 between peak value of X-ray diffraction due to the plane of the crystalline phase and peak value of X-ray diffraction due to the amorphous phase. The negative electrode active material is produced by preparing a mixture of LiOH.H2O and FeOOH and heating it together with distilled water in an autoclave at 180 to 220° C. for 10 to 20 hours, thereby giving an oxide having the crystalline and amorphous phases of LiFeO2 or an oxide having the crystalline and amorphous phases of LiFeO2 and LiFe5O8. | 04-24-2014 |
20140113196 | SYNTHESIS OF MESOPOROUS TRANSITION METAL OXIDES AS ANODE MATERIALS - A method of preparing mesoporous nanostructured particles of a transition metal oxide. The method contains the steps of dissolving a soft-template compound in a solvent, dispersing a first or second row transition metal ion-containing compound, adjusting the pH value if necessary, and removing the solvent to obtain mesoporous nanostructured transition metal oxide powders, calcining the powders optionally to afford mesoporous nanostructured particles of the transition metal oxide. Also disclosed is particle prepared by the above-described method. | 04-24-2014 |
20140127581 | Lithium-Rich Anode Material, Lithium Battery Anode, and Lithium Battery - The present application discloses a lithium-rich anode material, a lithium battery anode, and a lithium battery, where the structural formula of the lithium-rich anode material is as follows: z[xLi | 05-08-2014 |
20140134489 | LITHIUM-ION SECONDARY BATTERY - Provided is a lithium-ion secondary battery that uses a non-carbonaceous negative electrode active material capable of exhibiting capacitance properties. The lithium-ion secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a mica group mineral having at least one transition metal in its composition as a negative electrode active material. | 05-15-2014 |
20140134490 | APPROACH FOR MANUFACTURING EFFICIENT MESOPOROUS NANO-COMPOSITE POSITIVE ELECTRODE LiMn1-xFexPO4 MATERIALS - A process of preparing mesoporous nano-composite LiMn | 05-15-2014 |
20140134491 | LITHIUM CONTAINING COMPOSITE OXIDE POWDER AND MANUFACTURING PROCESS FOR THE SAME - Provided is a lithium containing composite oxide powder suitable for the positive electrode active material of the non-aqueous electrolysis solution secondary battery such as the lithium ion secondary battery, and a manufacturing process for the same. A lithium containing composite oxide powder includes a single crystal particle containing a lithium containing composite oxide that is manufactured by a molten salt method and that includes at least lithium and another one or more metal elements and in which a crystal structure belongs to a lamellar rock salt structure, wherein an average primary particle diameter is greater than or equal to 200 nm and smaller than or equal to 30 μm. The lithium containing composite oxide powder is grown by reacting the metal containing ingredient in the molten salt of the lithium hydroxide at a reaction temperature of higher than or equal to 650° C. and lower than or equal to 900° C. | 05-15-2014 |
20140141332 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE MEMBER, LITHIUM ION SECONDARY BATTERY, AND PRODUCTION METHOD FOR SAID POSITIVE ELECTRODE MATERIAL - Provided is a cathode material for a lithium ion secondary battery that includes a composite grain formed of lithium iron silicate crystals or lithium manganese silicate crystals and a carbon material. The composite grain has a sea-islands structure in which the lithium iron silicate crystals or lithium manganese silicate crystals are scattered like islands in the carbon material, and the islands have an average value of circle-equivalent diameter of smaller than 15 nm. | 05-22-2014 |
20140141333 | PROCESS FOR PREPARING ELECTROACTIVE INSERTION COMPOUNDS AND ELECTRODE MATERIALS OBTAINED THEREFROM - A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process. | 05-22-2014 |
20140178760 | HIGH CAPACITY CATHODE MATERIAL WITH STABILIZING NANOCOATINGS - A positive electrode active material comprising a lithium rich metal oxide active composition coated with aluminum zinc oxide coating composition is disclosed. The aluminum zinc oxide can be represented by the formula Al | 06-26-2014 |
20140186708 | IRON OXYFLUORIDE ELECTRODES FOR ELECTROCHEMICAL ENERGY STORAGE - The present invention provides electrochemical energy storage systems comprising metallolyte composites, iron fluoride composites and iron oxyfluoride composites. The present invention further provides methods for fabricating metallolyte composites. | 07-03-2014 |
20140199595 | Method of Synthesis of a Compound LiM1-x-y-zNyQzFexPO4 and Use Thereof as Electrode Material for a Lithium Battery - The invention relates to a method of manufacture of a compound of formula LiM | 07-17-2014 |
20140212755 | ELECTROACTIVE MATERIALS FOR RECHARGEABLE BATTERIES - An as-prepared cathode for a secondary battery, the cathode including an alkaline source material including an alkali metal oxide, an alkali metal sulfide, an alkali metal salt, or a combination of any two or more thereof. | 07-31-2014 |
20140212756 | LITHIUM IRON PHOSPHATE CATHODE MATERIAL AND METHOD FOR PRODUCING SAME - A lithium iron phosphate cathode material has high electron conductivity and high lithium ion conductivity, in other words, has excellent performance as an electrode material, which is provided by a carbon coating formed using a small amount of a carbon material. A method for producing the lithium iron phosphate cathode material is also provided. In particular, a lithium iron phosphate cathode material has primary particles of lithium iron phosphate coated with a conductive carbon cover layer. The conductive carbon cover layer is characterized by having thick layer portions with a thickness of 2 nm or greater and thin layer portions with a thickness of smaller than 2 nm. | 07-31-2014 |
20140220443 | STORAGE ELEMENT AND PROCESS FOR THE PRODUCTION THEREOF - A storage element for a solid electrolyte battery is provided, having a main member of a porous ceramic matrix in which particles, that are made of a metal and/or a metal oxide and jointly form a redox couple, are embedded, the particles having a lamellar shape. | 08-07-2014 |
20140220444 | METHOD OF PREPARING IRON OXIDE NANOPARTICLES - Provided are a method of preparing iron oxide nanoparticles, iron oxide nanoparticles prepared thereby, and an anode material including the iron oxide nanoparticles. | 08-07-2014 |
20140220445 | CARBON-COATED LITHIUM IRON PHOSPHATE OF OLIVINE CRYSTAL STRUCTURE AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the lithium iron phosphate has a composition represented by the following Formula 1 and carbon (C) is coated on the particle surface of the lithium iron phosphate containing a predetermined amount of sulfur (S). | 08-07-2014 |
20140220446 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, POSITIVE ELECTRODE MEMBER FOR LITHIUM ION SECONDARY BATTERIES, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR PRODUCING POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES - A cathode material for a lithium ion secondary battery is a composite grain including an oxide and a carbon material. The oxide includes, as constituent elements, Li, Si and at least one of Fe and Mn. According to a measurement by an X-ray diffraction method using Cu-Kα as an X-ray source, a diffraction peak exists within a range of 2θ=33±2° and a half width of the diffraction peak is 0.55° or more. A size of the grain is 1 μm or more and 20 μm or less. | 08-07-2014 |
20140220447 | STORAGE ELEMENT FOR A SOLID ELECTROLYTE BATTERY - A storage element for a solid electrolyte battery is provided, having a main member including a porous ceramic matrix in which particles that are made of a first metal and/or a metal oxide and jointly form a redox couple are embedded. The storage element further includes particles made of another metal and/or an associated metal oxide, the other metal being electrochemically more noble than the first metal. | 08-07-2014 |
20140234716 | LAYER-LAYER LITHIUM RICH COMPLEX METAL OXIDES WITH HIGH SPECIFIC CAPACITY AND EXCELLENT CYCLING - Lithium rich and manganese rich lithium metal oxides are described that provide for excellent performance in lithium-based batteries. The specific compositions can be engineered within a specified range of compositions to provide desired performance characteristics. Selected compositions can provide high values of specific capacity with a reasonably high average voltage. Compositions of particular interest can be represented by the formula, x Li | 08-21-2014 |
20140242464 | SECONDARY BATTERY OF IMPROVED LITHIUM ION MOBILITY AND CELL CAPACITY - Provided is a lithium secondary battery having improved discharge characteristics in a range of high-rate discharge while minimizing a dead volume and at the same time, having increased cell capacity via increased electrode density and electrode loading amounts, by inclusion of two or more active materials having different redox levels so as to exert superior discharge characteristics in the range of high-rate discharge via sequential action of cathode active materials in a discharge process, and preferably having different particle diameters. | 08-28-2014 |
20140242465 | HIGH-POWER LITHIUM-ION STORAGE BATTERY - A lithium-ion storage battery includes LiFePO | 08-28-2014 |
20140272588 | ALKALI METAL OXYANION ELECTRODE MATERIAL HAVING A CARBON DEPOSITED BY PYROLYSIS AND PROCESS FOR MAKING SAME - An alkali metal oxyanion cathode material comprising particles, where the particles carry, on at least a portion of the particle surface, carbon deposit by pyrolysis is described. The particles have the general formula A:M:M′:XO4 where the average valency of M is +2 or greater; A is at least one alkali metal selected from Li, Na and K; M is at least Fe and/or Mn; and M′ is a metal of valency of 2+ or more. | 09-18-2014 |
20140287310 | ELECTRODE MATERIAL, ELECTRODE AND LITHIUM ION BATTERY - An electrode material which can improve the mobility of electrons and the mobility of ions at the same time, and, furthermore, does not have a problem of the impairment of the diffusion of lithium ions in a thin layer containing a carbonaceous electron-conductive substance so as to be excellent in terms of load characteristics and energy density, and an electrode and a lithium ion battery are provided. | 09-25-2014 |
20140287311 | Hetero-nanostructure Materials for Use in Energy-Storage Devices and Methods of Fabricating Same - Hetero-nanostructure materials for use in energy-storage devices are disclosed. In some embodiments, a hetero-nanostructure material ( | 09-25-2014 |
20140295276 | POSITIVE ELECTRODE ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK - According to one embodiment, there is provided a positive electrode active material containing positive electrode active material particles. The positive electrode active material particles have an olivine structure. The positive electrode active material particles are represented by LiMn | 10-02-2014 |
20140295277 | LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME - A lithium secondary battery is provided which can exhibit excellent battery performances for a long period of time and has an excellent crystal structure stability. The positive electrode of the lithium secondary battery provided according to the present invention includes positive electrode active material particles mainly containing a lithium-containing phosphate compound represented by the general formula: Li | 10-02-2014 |
20140315087 | POSITIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A method of preparing a positive active material for a rechargeable lithium battery includes dry-coating a surface of a material capable of doping and dedoping lithium with a carbon nanotube. | 10-23-2014 |
20140315088 | ELECTRODE INCLUDING CURRENT COLLECTOR WITH NANO-SCALE COATING AND METHOD OF MAKING THE SAME - Current collectors and methods are provided that relate to electrodes that are useful in electrochemical cells. The provided current collectors include a metallic substrate, a substantially uniform nano-scale carbon coating, and an active electrode material. The coating has a maximum thickness of less than about 200 nanometers. | 10-23-2014 |
20140322604 | ELECTRODE-ACTIVE MATERIAL, ELECTRODE MATERIAL, ELECTRODE, LITHIUM ION BATTERY, AND METHOD OF PRODUCING ELECTRODE MATERIAL - An electrode-active material includes sulfur or a sulfur compound in particles represented by Li | 10-30-2014 |
20140322605 | MIXED CATHODE ACTIVE MATERIAL HAVING IMPROVED POWER CHARACTERISTICS AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Provided are a mixed cathode active material having improved power characteristics and a lithium secondary battery including the same. More particularly, the present invention relates to a mixed cathode active material which may reduce the difference in operating voltage with respect to layered-structure lithium transition metal oxide and may consequently minimize power reduction in a transient region by using LFP having a portion of iron (Fe) substituted with other elements, such as manganese (Mn), (LMFP), in order to prevent a rapid voltage drop in the transient region when layered-structure lithium transition metal oxide and olivine-structured lithium oxide (e.g., LFP) are blended, and a lithium secondary battery including the mixed cathode active material. | 10-30-2014 |
20140342230 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a positive electrode for a non-aqueous electrolyte secondary battery, including a current collector and a mixture layer attached thereto. The mixture layer includes an active material including particles of a first active material, i.e., a lithium-manganese composite oxide, and particles of a second active material, i.e., a lithium-nickel composite oxide. A proportion of the first active material particles in the active material is 51 vol % to 90 vol %. A volume-based particle size distribution of the first active material particles has a first peak on a larger particle side and a second peak on a smaller particle side. A first particle size D | 11-20-2014 |
20140342231 | COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME, ELECTRODE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY - Provided is positive electrode material for a highly safe lithium-ion secondary battery that can charge and discharge a large current while having long service life. Disclosed are composite particles comprising: particles of lithium-containing phosphate; and carbon coating comprising at least one carbon material selected from the group consisting of (i) fibrous carbon material, (ii) chain-like carbon material, and (iii) carbon material produced by linking together fibrous carbon material and chain-like carbon material, wherein each particle is coated with the carbon coating. The fibrous carbon material is preferably a carbon nanotube with an average fiber size of 5 to 200 nm. The chain-like carbon material is preferably carbon black produced by linking, like a chain, primary particles with an average particle size of 10 to 100 nm. The lithium-containing phosphate is preferably LiFePO | 11-20-2014 |
20140349187 | SECONDARY BATTERY-USE ACTIVE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC APPARATUS - A secondary battery capable of obtaining superior battery characteristics is provided. The secondary battery of the present technology includes a cathode, an anode including an active material, and an electrolytic solution. The active material includes a core section and covering section, the core section being capable of inserting and extracting lithium ions, and the covering section being provided in at least part of a surface of the core section and being a low-crystalline or a noncrystalline. The core section includes Si and O as constituent elements, and an atom ratio x (O/Si) of O with respect to Si satisfies O≦x<0.5. The covering section includes Si and O as constituent elements, and an atom ratio y (O/Si) of O with respect to Si satisfies 0.5≦y≦1.8. The covering section has voids, and a carbon-containing material is provided in at least part of the voids. | 11-27-2014 |
20140356716 | ELECTRODE MATERIAL, ELECTRODE AND METHOD OF MANUFACTURING ELECTRODE MATERIAL - Provided are an electrode material and an electrode which, when an electrode active material having a carbonaceous coat formed on the surface is used as an electrode material, have a small variation in an amount of the carbonaceous coat being supported and, furthermore, can improve electron conductivity, and a method of manufacturing the electrode material. The electrode material is made of an agglomerate formed by agglomerating particles of an electrode active material having a carbonaceous coat formed on a surface, the average particle diameter of the agglomerate is in a range of 1.0 μm to 100 μm, the volume density of the agglomerate is in a range of 50% by volume to 80% by volume of the volume density of a solid form of the agglomerate, the pore size distribution of pores in the agglomerate is mono-modal, and the average pore diameter in the pore size distribution is 0.3 μm or less. | 12-04-2014 |
20140356717 | Lithium Ion Secondary Battery Positive Electrode, Lithium Ion Secondary Battery, Vehicle Mounting the Same, and Electric Power Storage System - The present invention is directed to a lithium ion secondary battery positive electrode, a lithium ion secondary battery, a vehicle mounting the same, and an electric power storage system, which improve the electron conductivity even inside an active material formed into a secondary particle. The electrode includes a positive electrode active material expressed by xLi | 12-04-2014 |
20140363737 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery in which a high capacity, as well as a high level of safety, is achieved, by using an oxide material containing Li and Fe for a negative electrode active material. In the lithium ion secondary battery, the negative electrode active material is a mixed phase of LiFeO2 and LiFe5O8 and a material in which the value calculated as the ratio of the height of a diffraction peak belonging to LiFeO2 (200) plane and the height of a diffraction peak belonging to LiFe5O8 (311) plane, which are obtained by X-ray diffraction method, is 0.18 to 20.4. | 12-11-2014 |
20140370387 | SILICON-SILICON OXIDE-CARBON COMPOSITES FOR LITHIUM BATTERY ELECTRODES AND METHODS FOR FORMING THE COMPOSITES - Composite silicon based materials are described that are effective active materials for lithium ion batteries. The composite materials comprise processed, e.g., high energy mechanically milled, silicon suboxide and graphitic carbon in which at least a portion of the graphitic carbon is exfoliated into graphene sheets. The composite materials have a relatively large surface area, a high specific capacity against lithium, and good cycling with lithium metal oxide cathode materials. The composite materials can be effectively formed with a two step high energy mechanical milling process. In the first milling process, silicon suboxide can be milled to form processed silicon suboxide, which may or may not exhibit crystalline silicon x-ray diffraction. In the second milling step, the processed silicon suboxide is milled with graphitic carbon. Composite materials with a high specific capacity and good cycling can be obtained in particular with balancing of the processing conditions. | 12-18-2014 |
20140370388 | METHOD FOR DETERMINING STATE OF CHARGE IN LITHIUM BATTERIES THROUGH USE OF A NOVEL ELECTRODE - The accurate determination of the state-of-charge (SOC) of batteries is an important element of battery management. One method to determine SOC is to measure the voltage of the cell and exploiting the correlation between voltage and SOC. For electrodes with sloped charge/discharge profiles, this is a good method. However, for batteries with lithium iron phosphate (LFP) cathodes the charge/discharge profile is flat. Now, by using the materials and methods disclosed herein, an amount of cathode active material that has a sloped charge/discharge profile is mixed with LFP in a cathode, which results in a charge/discharge profile with enough slope that the SOC of the battery can be determined by measuring the voltage alone. | 12-18-2014 |
20140377659 | ACTIVE MATERIALS FOR LITHIUM ION BATTERIES - Disclosed herein are cathode formulations comprising a lithium ion-based electroactive material having a D | 12-25-2014 |
20150010818 | RECHARGEABLE LITHIUM BATTERY WITH CONTROLLED PARTICLE SIZE RATIO OF ACTIVATED CARBON TO POSITIVE ACTIVE MATERIAL - A rechargeable lithium battery that includes: a negative electrode including a negative active material, and a positive electrode including a positive active material and activated carbon. When the positive active material includes a lithium nickel-based oxide, a lithium cobalt-based oxide, a lithium manganese-based oxide, a lithium titanium-based oxide, a lithium nickel manganese-based oxide, a lithium nickel cobalt manganese-based oxide, a lithium nickel cobalt aluminum-based oxide, or a combination thereof, the average particle diameter of the activated carbon is greater than about 100% and less than about 1000% of the average particle diameter of the positive active material. When the positive active material includes a lithium iron phosphate-based compound, the average particle diameter of the activated carbon is greater than or equal to about 1000% and less than or equal to about 3000% of the average particle diameter of the positive active material. | 01-08-2015 |
20150010819 | CATHODE ACTIVE MATERIAL, METHOD OF PREPARING THE CATHODE MATERIAL, CATHODE, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A cathode active material including at least two agglomerates of primary particles and a cathode and a lithium secondary battery containing the same are disclosed. In the cathode active material, a secondary particle includes a nickel-based lithium transition metal oxide, an average particle diameter of each primary particle is in a range from about 2 to about 3 μm, and an average particle diameter of the secondary particle is in a range from about 5 to about 8 μm. | 01-08-2015 |
20150010820 | ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK - According to one embodiment, there is provided an active material including monoclinic niobium titanium composite oxide particles and a carbon material layer. The monoclinic niobium titanium composite oxide particles can absorb and release Li ions or Na ions and satisfy Formula (1) below. The carbon material layer covers at least a part of surfaces of the niobium titanium composite oxide particles and satisfies Formula (2) below: | 01-08-2015 |
20150010821 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS LITHIUM SECONDARY BATTERY - A lithium secondary battery ( | 01-08-2015 |
20150010822 | LITHIUM-ION BATTERY AND METHOD FOR PRODUCING SAME - The present invention relates to a lithium-ion battery comprising
| 01-08-2015 |
20150024270 | ELECTRON COLLECTOR STRUCTURE AND LITHIUM BATTERY CONTAINING THE SAME - An electron collector structure and a lithium battery including the same are disclosed. The electron collector structure includes a conductive thin film; and a graphene layer that is coated on the surface of the conductive thin film and may improve the electrical conductivity of an electrode plate. As an electrode of the lithium battery includes the electron collector structure, the electrical conductivity of the electrode may be increased so that the energy consumption properties as well as the lifespan characteristics of the lithium battery may be also improved. | 01-22-2015 |
20150024271 | METHOD FOR PREPARING LITHIUM IRON PHOSPHATE NANOPOWDER - The present invention relates to a method for preparing a lithium iron phosphate nanopowder, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a triethanolamine solvent, and (b) putting the mixture solution into a reactor and heating to prepare the lithium iron phosphate nanopowder under pressure conditions of 10 bar to 100 bar, and a lithium iron phosphate nanopowder prepared by the method. When compared to a common hydrothermal synthesis method and a supercritical hydrothermal synthesis method, a reaction may be performed under a relatively lower pressure. When compared to a common glycothermal synthesis method, a lithium iron phosphate nanopowder having effectively controlled particle size and particle size distribution may be easily prepared. | 01-22-2015 |
20150037673 | POSITIVE-ELECTRODE MATERIALS: METHODS FOR THEIR PREPARATION AND USE IN LITHIUM SECONDARY BATTERIES - There is provided a positive-electrode material for a lithium secondary battery. The material comprises a lithium oxide compound or a complex oxide as reactive substance. The material also comprises at least one type of carbon material, and optionally a binder. A first type of carbon material is provided as a coating on the reactive substance particles surface. A second type of carbon material is carbon black. And a third type of carbon material is a fibrous carbon material provided as a mixture of at least two types of fibrous carbon material different in fiber diameter and/or fiber length. Also, there is provided a method for preparing the material as well as lithium secondary batteries comprising the material. | 02-05-2015 |
20150037674 | ELECTRODE MATERIAL FOR LITHIUM-BASED ELECTROCHEMICAL ENERGY STORES - The invention relates to carbon-coated zinc ferrite particles, to a method for producing carbon-coated zinc ferrite particles, and to the use thereof as the electrode material for lithium-ion batteries. | 02-05-2015 |
20150037675 | NEGATIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - To provide a high-capacity lithium secondary battery at a low price that attains an increased reversibility of charge and discharge, by using a new negative electrode material different from the existing negative electrode materials, and to provide a lithium secondary battery that can use an existing electrolyte at a small risk of ignition or overheating. | 02-05-2015 |
20150044564 | Anode containing active material-coated graphene sheets and lithium-ion batteries containg same - The present invention provides an anode electrode of a lithium-ion battery, comprising an anode active material-coated graphene sheet, wherein the graphene sheet has two opposed parallel surfaces and at least 50% area of one of the surfaces is coated with an anode active material and wherein the graphene material is in an amount of from 0.1% to 99.5% by weight and the anode active material is in an amount of at least 0.5% by weight (preferably at least 60%), all based on the total weight of the graphene material and the anode active material combined. | 02-12-2015 |
20150044565 | Anode active material-coated graphene sheets for lithium batteries and process for producing same - The present invention provides a process for producing a graphene-enhanced anode active material for use in a lithium battery. The process comprises (a) providing a continuous film of a graphene material into a deposition zone; (b) introducing vapor or atoms of a precursor anode active material into the deposition zone, allowing the vapor or atoms to deposit onto a surface of the graphene material film to form a sheet of an anode active material-coated graphene material; and (c) mechanically breaking this sheet into multiple pieces of anode active material-coated graphene; wherein the graphene material is in an amount of from 0.1% to 99.5% by weight and the anode active material is in an amount of at least 0.5% by weight, all based on the total weight of the graphene material and the anode active material combined. | 02-12-2015 |
20150056510 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material including SiO | 02-26-2015 |
20150056511 | CATHODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND METHOD FOR ITS PRODUCTION - To provide a cathode active material for a lithium ion secondary battery, which has high packing properties and high volume capacity density, and a method for its production. A cathode active material for a lithium ion secondary battery is used, which comprises a mixture B of a collection of many large particles having different particle sizes and a collection of many small particles having different particle sizes, wherein the function F(x) of a particle size x of a particle contained in the mixture B and its frequency F has a relation of the formula 1, the function E(x) of a particle size x of a particle contained in a mixture B′ after the mixture B is pressed and its frequency E has a relation of the formula 2, the rate of change of the median size μ′ | 02-26-2015 |
20150064558 | ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - To provide an active material having high capacity and excellent cycle characteristics. An active material has a layered crystal structure and is expressed by a compositional formula (1) Li | 03-05-2015 |
20150064559 | ELECTRODE-ACTIVE MATERIAL, LITHIUM-ION BATTERY, METHOD FOR DETECTING DISCHARGE STATE OF ELECTRODE-ACTIVE MATERIAL, AND METHOD FOR MANUFACTURING ELECTRODE-ACTIVE MATERIAL - An electrode-active material, a lithium-ion battery, and a method for detecting a discharge state of an electrode-active material that make it possible to realize high load characteristics, high cycle characteristics, and high energy density, have a high degree of safety and stability, and make it possible to easily detect the state of a late stage of discharge are disclosed. The electrode-active material is obtained by coating the surface of a particle containing Li | 03-05-2015 |
20150064560 | ELECTRODE ACTIVE MATERIAL, ELECTRODE INCLUDING THE SAME, AND LITHIUM BATTERY INCLUDING THE ELECTRODE - An electrode active material including an ordered mesoporous metal oxide; and at least one conductive carbon material disposed in a pore of the ordered mesoporous metal oxide. Also, an electrode including the electrode active material, and a lithium battery including the electrode. | 03-05-2015 |
20150064561 | ACCELERATED FORMATION AND INCREASED PERFORMANCE IN CHEMICALLY PRE-FORMED (CPF) IRON NEGATIVE ELECTRODES - Provided is a process for preparing an electrode comprising an iron active material. The process comprises first fabricating an electrode comprising an iron active material, and then treating the surface of the electrode with an oxidant to thereby create an oxidized surface. The resulting iron electrode is preconditioned prior to any charge-discharge cycle to have the assessable surface of the iron active material in the same oxidation state as in discharged iron negative electrodes active material. | 03-05-2015 |
20150064562 | NICKEL-IRON BATTERY WITH A CHEMICALLY PRE-FORMED (CPF) IRON NEGATIVE ELECTRODE - Provided is a Ni—Fe battery comprising an iron electrode which is preconditioned prior to any charge-discharge cycle. The preconditioned iron electrode used in the Ni—Fe battery is prepared by first fabricating an electrode comprising an iron active material, and then treating the surface of the electrode with an oxidant to thereby create an oxidized surface. | 03-05-2015 |
20150093643 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material for a non-aqueous electrolyte secondary battery according to an embodiment of the present disclosure is represented by a general formula of Li,Ni | 04-02-2015 |
20150093644 | SODIUM MANGANESE COMPOSITE OXIDE AND ELECTRODE AND SODIUM SECONDARY BATTERY USING THE SAME - A sodium manganese composite oxide represented by Formula 1: | 04-02-2015 |
20150093645 | POWER STORAGE DEVICE - A power storage device including a positive electrode in which a positive electrode active material is formed over a positive electrode current collector and a negative electrode which faces the positive electrode with an electrolyte interposed therebetween is provided. The positive electrode active material includes a first region which includes a compound containing lithium and one or more of manganese, cobalt, and nickel; and a second region which covers the first region and includes a compound containing lithium and iron. Since a superficial portion of the positive electrode active material includes the second region containing iron, an energy barrier when lithium is inserted into and extracted from the surface of the positive electrode active material can be decreased. | 04-02-2015 |
20150099176 | POSITIVE ELECTRODE ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK - A positive electrode active material includes LiMn | 04-09-2015 |
20150099177 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery disclosed in the present application includes: a positive electrode capable of absorbing and releasing lithium, containing a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystalline structure; and a negative electrode capable of absorbing and releasing lithium, containing a negative electrode active material composed of a lithium-containing transition metal oxide obtained by substituting some of Ti element of a lithium-containing titanium oxide having a spinel crystalline structure with one or more element different from Ti, wherein a retention of the negative electrode is set to be greater than a retention of the positive electrode, and an irreversible capacity rate of the negative electrode is set to be greater than an irreversible capacity rate of the positive electrode, whereby a discharge ends by negative electrode limitation. | 04-09-2015 |
20150104709 | CATHODE ACTIVE MATERIAL, CATHODE AND NONAQUEOUS SECONDARY BATTERY - A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, | 04-16-2015 |
20150104710 | CATHODE ACTIVE MATERIAL, CATHODE AND NONAQUEOUS SECONDARY BATTERY - A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, | 04-16-2015 |
20150111105 | ACTIVE MATERIAL, ELECTRODE USING SAME, AND LITHIUM ION SECONDARY BATTERY - To provide an active material with high capacity, high initial charge-discharge efficiency, and high average discharge voltage. An active material according to the present invention includes a first active material and a second active material, wherein the ratio (δ) of the second active material (B) to the total amount by mole of the first active material (A) and the second active material (B) satisfies 0.4 mol %≦δ≦18 mol % [where δ=(B/(A+B))×100]. | 04-23-2015 |
20150118559 | COMPOSITION FOR FORMING ELECTRODE OF LITHIUM SECONDARY BATTERY, ELECTRODE AND LITHIUM SECONDARY BATTERY - A composition for forming an electrode of a lithium secondary battery of the present invention includes: an active material represented by the following general formula (1), which is coated with conductive carbon; a dispersant; a binder; and a solvent, wherein, as the active material, secondary particles with different particle diameters are used in combination with granulated particles wherein the secondary particles are respectively formed from fine primary particles having an average primary particle diameter of 50 to 300 nm. | 04-30-2015 |
20150118560 | PROCESS FOR PRODUCING ELECTRODE MATERIALS - The present invention relates to a process for producing electrode materials, which comprises the following steps:
| 04-30-2015 |
20150118561 | PROCESS FOR PREPARING CRYSTALLINE ELECTRODE MATERIALS AND MATERIALS OBTAINED THEREFROM - There is provided a process for preparing a crystalline electrode material, the process comprising: providing a liquid bath comprising the electrode material in a melted state; and introducing a precursor of the electrode material into the liquid bath, wherein the electrode material comprises lithium, a metal and phosphate. There is also provided a crystalline electrode material, comprising lithium substituted by less than 0.1 atomic of Na or K; Fe and/or Mn, substituted by less than 0.1 atomic ratio of: (a) Mg, Ca, Al and B, (b) Nb, Zr, Mo, V and Cr, (c) Fe(III), or (d) any combinations thereof; and PO | 04-30-2015 |
20150118562 | RECHARGEABLE LITHIUM ION BATTERY AND METHOD OF PREPARING THE SAME - A rechargeable lithium ion battery includes a positive electrode including a positive active material; negative electrode; and electrolyte, wherein the rechargeable lithium ion battery is used at a voltage of less than about 4.5 V, and activated by performing a first cycle charging at a voltage of greater than or equal to about 4.55 V, the positive active material is a ternary-component positive active material including a Li | 04-30-2015 |
20150118563 | LITHIUM-RICH POSITIVE ELECTRODE MATERIAL, LITHIUM BATTERY POSITIVE ELECTRODE, AND LITHIUM BATTERY - The present invention discloses a lithium-rich positive electrode material, a lithium battery positive electrode, and a lithium battery. The lithium-rich positive electrode material has a coating structure, where a general structural formula of a core of the coating structure is as follows: z[xLi | 04-30-2015 |
20150125751 | METHOD FOR MANUFACTURING LITHIUM-CONTAINING COMPOSITE OXIDE - To simply manufacture a lithium-containing oxide at lower manufacturing cost. A method for manufacturing a lithium-containing composite oxide expressed by a general formula LiMPO | 05-07-2015 |
20150140428 | ELECTRODE MATERIAL, ELECTRODE, AND LITHIUM ION BATTERY - An electrode material having excellent electron conductivity, load characteristics, and cycle characteristics is provided. The electrode material includes an electrode active material represented by Li | 05-21-2015 |
20150295243 | CATHODE ACTIVE MATERIAL, LITHIUM BATTERY AND METHOD OF PRODUCING CATHODE ACTIVE MATERIAL - The problem of the present invention is to provide a cathode active material which performs favorable discharge capacity. The present invention solves the problem by providing a cathode active material comprising a crystal phase of an inverse-spinel structure represented by LiM | 10-15-2015 |
20150303470 | CATHODE ACTIVE MATERIAL FOR SODIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE CATHODE ACTIVE MATERIAL FOR SODIUM SECONDARY BATTERY - Provided are a cathode active material for a sodium ion secondary battery that is excellent in alkali ion diffusivity, structural stability, and cycle performance, and a synthesis method therefor. The cathode active material for a sodium ion secondary battery includes a melt-solidified body or oxide glass represented by the general formula Na | 10-22-2015 |
20150303472 | POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The positive electrode active material of the present invention contains an lithium iron phosphate compound having such diffraction peaks that diffraction peak intensity ratios at 2θ=17.2±0.5°, 2θ=20.8±0.5° and 2θ=25.6±0.5° are from 29 to 37, from 70 to 80 and from 85 to 94, respectively, when the diffraction peak intensity at 2θ=35.6±0.5° is deemed as 100 in a powder X-ray diffractometry using Cu-Kα ray as a radiation source. It becomes possible to provide a positive electrode active material that provides higher rate property and discharge capacity, and a positive electrode and a non-aqueous electrolyte secondary battery using the positive electrode active material. | 10-22-2015 |
20150311505 | LMFP Cathode Materials with Improved Electrochemical Performance - Particulate LMFP cathode materials having high manganese contents and small amounts of dopant metals are disclosed These cathode materials are made by milling a mixture of precursor materials in a wet or dry milling process. Preferably, off-stoichiometric amounts of starting materials are used to make the cathode materials. Unlike other high manganese LMFP materials, these cathode materials provide high specific capacities, very good cycle life and high energies even at high discharge rates. | 10-29-2015 |
20150311510 | ELECTRODE MATERIAL AND METHOD FOR PRODUCING ELECTRODE MATERIAL - An electrode material is composed of an electrode active material represented by the general formula LiMPO | 10-29-2015 |
20150311514 | PRECURSOR OF LI-ION CATHODE MATERIAL, THE PREPARATION METHOD THEREOF AND LI-ION CATHODE MATERIAL - Li-ion cathode materials with improved performance characteristics and precursors to prepare such materials are disclosed. The precursors consist of complex, mixed alkali transition metal oxides of the formula Li | 10-29-2015 |
20150311518 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - A negative electrode active material for a lithium ion secondary battery includes a network structure formed by at least some of iron oxide particles being linked to each other. | 10-29-2015 |
20150311519 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - A negative electrode active material for a lithium ion secondary battery includes secondary particles formed by primary particles containing iron oxide that are linked in a chain. | 10-29-2015 |
20150333324 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF PRODUCING SAME - A nonaqueous electrolyte secondary battery includes: a positive electrode collector core material; and a sheet body including a plurality of granulation bodies. The sheet body is disposed on the positive electrode collector core material. The granulation bodies each contain a first positive electrode active material particle, a second positive electrode active material particle, and expanded graphite, the first positive electrode active material particle including lithium-nickel composite oxide, the second positive electrode active material particle including lithium iron phosphate. | 11-19-2015 |
20150333325 | MANUFACTURING METHOD OF POSITIVE ACTIVE MATERIAL PRECURSOR FOR SODIUM RECHARGEABLE BATTERIES, POSITIVE ACTIVE MATERIAL PRECURSOR FOR SODIUM RECHARGEABLE BATTERIES MADE BY THE SAME, AND MANUFACTURING METHOD OF POSITIVE ACTIVE MATERIAL FOR SODIUM RECHARGEABLE BATTERIES, POSITIVE ACTIVE MATERIAL FOR SODIUM RECHARGEABLE BATTERIES MADE BY THE SAME - Disclosed is a method for producing a cathode active material precursor for a sodium secondary battery by using a coprecipitation technique and a cathode active material precursor for a sodium secondary battery produced thereby, and a cathode active material for a sodium secondary battery using the cathode active material precursor for a sodium secondary battery and a method for producing the same. | 11-19-2015 |
20150340683 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY - A positive electrode material is used for a lithium secondary battery. The material includes a complex oxide whose overall composition is expressed by Li | 11-26-2015 |
20150340689 | COMPOSITE CATHODE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE SAME - A composite cathode active material includes: a core including a material capable of intercalation and deintercalation of lithium; and a first coating layer on at least one portion of the core, where the first coating layer includes zirconium oxide. A lithium battery includes a cathode including the composite cathode active material. Methods of preparing the composite cathode active material are also disclosed. | 11-26-2015 |
20150340692 | CATHODE ADDITIVES FOR LITHIUM SECONDARY BATTERY WITH HIGH CAPACITY - The present disclosure refers to a lithium secondary battery comprising Li | 11-26-2015 |
20150349330 | POSITIVE ACTIVE MATERIAL AND LITHIUM-ION SECONDARY BATTERY - The present disclosure provides a positive active material and a lithium-ion secondary battery. The positive active material comprises LiCoO | 12-03-2015 |
20150357633 | METHOD FOR PREPARING LITHIUM IRON PHOSPHATE NANOPOWDER COATED WITH CARBON - The present invention relates to a method for preparing a lithium iron phosphate nanopowder coated with carbon, including the steps of (a) preparing a mixture solution by adding a lithium precursor, an iron precursor and a phosphorus precursor in a reaction solvent, (b) putting the mixture solution into a reactor and reacting to prepare amorphous lithium iron phosphate nanoseed particle, and (c) heat treating the lithium iron phosphate nanoseed particle thus to prepare the lithium iron phosphate nanopowder coated with carbon on a portion or a whole of a surface of a particle, and a lithium iron phosphate nanopowder coated with carbon prepared by the above method. A lithium secondary battery including the lithium iron phosphate nanopowder coated with carbon thus prepared as a cathode active material has good capacity and stability. | 12-10-2015 |
20150357639 | ACTIVE MATERIAL AND LITHIUM ION BATTERY - The main object of the present invention is to provide an active material which is used for an electrochemical device utilizing Li ion conduction, and capable of improving cycle stability. The present invention attains the object by providing an active material used for an electrochemical device utilizing Li ion conduction, comprising an active substance capable of absorbing and releasing a Li ion, and an Na ion conductor disposed on the surface of the active substance and having a polyanionic structure. | 12-10-2015 |
20150364760 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - The present disclosure relates to a positive electrode for a lithium secondary battery including an electrode current collector, and a positive electrode active material layer coated on at least a part of the electrode current collector, wherein the positive electrode active material layer includes a manganese-based positive electrode active material, and a porosity is from 30% to 35%, to improve high-temperature storage characteristics and high-temperature cycle characteristics. | 12-17-2015 |
20150364765 | POSITIVE ELECTRODE FOR SECONDARY BATTERIES, SECONDARY BATTERY, AND METHOD FOR PRODUCING POSITIVE ELECTRODE FOR SECONDARY BATTERIES - Provided is a secondary battery positive electrode that can improve the rapid charge and discharge and can increase the heat resistance. Also provided are a secondary battery comprising the secondary battery positive electrode, and a method for producing the secondary battery positive electrode. The secondary battery positive electrode comprises an aluminum material, a positive active material layer comprising a lithium-containing metal oxide as a positive active material, and formed on the surface of the aluminum material, and an intervening layer comprising aluminum and carbon, and formed between the aluminum material and the positive active material layer. A secondary battery positive electrode is produced by forming a positive electrode active material layer comprising a lithium-containing metal oxide as a positive electrode active material on the surface of an aluminum material, and heating the aluminum material with the positive active material layer formed thereon in a space containing a hydrocarbon-containing substance. | 12-17-2015 |
20150368113 | METHOD FOR CONTINUOUSLY PREPARING SILICON NANOPARTICLES, AND ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY COMPRISING SAME - This invention relates to a method of manufacturing silicon nanoparticles, wherein the deterioration of an electrode due to the volume change of silicon can be minimized and electrical contact can be improved, thus ensuring high capacity and cycle characteristics of a battery, and to an anode active material using silicon nanoparticles manufactured thereby. The method of continuously manufacturing silicon nanoparticles includes feeding a silane gas and a carrier gas into a reactor, decomposing the silane gas in the reactor, and recovering the silicon nanoparticles. | 12-24-2015 |
20160006023 | ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES - Electrode materials comprising (a) at least one component of general formula (I) Li | 01-07-2016 |
20160006035 | Olivine Composition with Improved Cell Performance - The invention discloses an olivine cathode material comprising Li, M and PO 4, having a non-stoichiometric composition wherein: —the phosphor stoichiometry PO 4:[(Li+M)/2] is between 0.940 and 1.020, —the lithium to metal ratio Li:M is between 1.040 and 1.150, and wherein M=Fe−x−z′ Mn x D z′, with 0.100, D being a dopant comprising either one or both of Cr and Mg. In one embodiment PO 4:[(Li+M)/2] is between 0.960 and 1.000, resulting in an even better performing material. Performance is improved even more in another embodiment wherein PO 4:[(Li+M)/2] is less than 1.000. Improvements in performance are also obtained for either an embodiment wherein the lithium to metal ratio Li:M is between 1.070 and 1.120; or an embodiment wherein the manganese to iron ratio Mn/(Mn+Fe) is between 0.25 and 0.75; or for another embodiment wherein z′<0.05. | 01-07-2016 |
20160036042 | LITHIUM TRANSITION METAL PHOSPHATE SECONDARY AGGLOMERATES AND PROCESS FOR ITS MANUFACTURE - A Lithium-transition-metal-phosphate compound of formula Li | 02-04-2016 |
20160036047 | HIGH ENERGY AND POWER LI-ION BATTERY HAVING LOW STRESS AND LONG-TERM CYCLING CAPACITY - A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of two different types, one of the types forming pore channels or porous structure and one of the types being more compressible than others type. | 02-04-2016 |
20160043388 | 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, wherein 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 |
20160043399 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - The main object of the present invention is to provide a cathode active material for a lithium secondary battery with high theoretical capacity. The present invention solves the problem by providing a cathode active material for a lithium secondary battery, wherein the cathode active material comprises a crystal structure belonging to a space group C12/c1, and is represented by (Na | 02-11-2016 |
20160043403 | POSITIVE ELECTRODE COMPOSITION FOR RECHARGEABLE LITHIUM BATTERY, AND POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A positive electrode composition for a rechargeable lithium battery includes a positive active material, a spherically shaped conductive material, and a sheet-shaped conductive material. The spherically shaped conductive material is included in an amount of about 1.1 to about 10 parts by weight based on 1 part by weight of the sheet-shaped conductive material. A positive electrode includes the positive electrode composition and a rechargeable lithium battery includes the positive electrode. | 02-11-2016 |
20160049644 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY - A positive active material according to one embodiment has at least one singlet peak at | 02-18-2016 |
20160049655 | DOPED CONVERSION MATERIALS FOR SECONDARY BATTERY CATHODES - Battery systems using doped conversion materials as the active material in battery cathodes are provided herein. Doped conversion material may include a defect-rich structure or an amorphous or glassy structure, including at least one or more of a metal material, one or more oxidizing species, a reducing cation species, and a dopant. Methods for fabricating batteries and battery systems with doped conversion material are also provided herein. | 02-18-2016 |
20160049657 | LITHIUM TRANSITION METAL PHOSPHATE SECONDARY AGGLOMERATES AND PROCESS FOR ITS MANUFACTURE - A Lithium-transition-metal-phosphate compound of formula Li | 02-18-2016 |
20160056453 | POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME - A positive electrode for lithium ion secondary batteries includes a collector and a positive electrode active material layer formed on at least one surface of the collector. The positive electrode active material layer contains a lithium-containing metal oxide having a unit cell represented by the following formula and a conductive material and has voids with a volume of 0.82×10 | 02-25-2016 |
20160056460 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL USING SAME - This positive electrode active material for a nonaqueous electrolyte secondary cell includes a lithium-containing transition metal oxide having a layered structure, the principal arrangement of a transition metal, oxygen, and lithium in the positive electrode active material being represented by an O | 02-25-2016 |
20160064730 | COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL AND POSITIVE ELECTRODE AND LITHIUM BATTERY COMPRISING THE COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL - A composite positive electrode active material includes a lithium transition metal oxide represented by at least one of LiNi | 03-03-2016 |
20160064735 | CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME - The object of the present invention is to provide a manufacturing method of carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries, wherein the carbonaceous material is obtained from plant-derived char as a source, potassium is sufficiently removed, and an average particle diameter thereof is small; and a carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries. | 03-03-2016 |
20160072122 | LITHIUM BATTERIES CONTAINING LITHIUM-BEARING IRON PHOSPHATE AND CARBON - The invention relates to lithium-bearing iron phosphate in the form of micrometric mixed aggregates of nanometric particles, to an electrode and cell resulting therefrom and to the method for manufacturing same, which is characterized by a nanomilling step. | 03-10-2016 |
20160072124 | Water-Free Titania-Bronze Thin Films With Superfast Lithium Ion Transport - A multilayered structure including a substrate and a layer of calcium-doped bronze is disclosed. A multilayered structure including a substrate, a layer of calcium-doped bronze, and a layer of pure bronze is also disclosed. A method for fabricating a multilayer structure including a substrate and a layer of calcium-doped bronze is also disclosed. | 03-10-2016 |
20160079599 | LITHIUM-ION BATTERY MATERIALS WITH IMPROVED PROPERTIES - A cobalt-containing phosphate material can comprise lithium (Li) (or, alternatively or additionally other alkali metal(s)), cobalt (Co), phosphate (PO | 03-17-2016 |
20160079600 | MANUFACTURING METHOD OF COMPOSITE OXIDE AND MANUFACTURING METHOD OF POWER STORAGE DEVICE - An object is to reduce variation in shape of crystals that are to be formed. Solutions containing respective raw materials are made in an environment where an oxygen concentration is lower than that in air, the solutions containing the respective raw materials are mixed in an environment where an oxygen concentration is lower than that in air to form a mixture solution, and with use of the mixture solution, a composite oxide is formed by a hydrothermal method. | 03-17-2016 |
20160087261 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A positive electrode for a rechargeable lithium battery, includes a current collector including pores on a surface thereof; and a positive active material layer on the current collector and including a positive active material, the positive active material including a lithium metal compound including primary particles and secondary particles including agglomerations of the primary particles, an average diameter of the pores of the current collector being greater than an average particle diameter (D50) of the primary particles and less than an average particle diameter (D50) of the secondary particles. | 03-24-2016 |
20160087272 | Lithium Secondary Batteries with Positive Electrode Compositions and Their Methods of Manufacturing - Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 60 μm. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting of LiCoO | 03-24-2016 |
20160093878 | ELECTRODE MATERIAL, ELECTRODE, AND LITHIUM ION BATTERY - An electrode material including electrode active material particles having a carbonaceous film formed on the surfaces thereof in which the coatability of the carbonaceous film can be guaranteed even when a crushing process is carried out, and the rate characteristics and the like are not degraded during charge and discharge, an electrode and a lithium ion battery having excellent charge and discharge characteristics for which the electrode material is used are provided. The electrode material includes electrode active material particles having a carbonaceous film formed on surfaces thereof, and an affinity value to N-methyl-2-pyrrolidone measured through pulse NMR is in a range of 5000 to 20000. | 03-31-2016 |
20160093881 | SPHERICAL PARTICLES, PRODUCTION THEREOF AND USE - Spherical particles comprising
| 03-31-2016 |
20160093889 | 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 or the rhombohedral NASICON structure and the polyanion (PO | 03-31-2016 |
20160099462 | NOVEL SECONDARY BATTERY - Disclosed herein is a lithium secondary battery including a positive electrode including lithium iron phosphate and layered lithium nickel manganese cobalt oxide as a positive electrode active material and a negative electrode including a negative electrode active material having a potential difference of 3.10 V or higher from the lithium iron phosphate at a point of 50% state of charge (SOC) afforded by the entirety of the lithium iron phosphate. | 04-07-2016 |
20160111712 | CATHODE MATERIAL AND LITHIUM ION BATTERY - A cathode material including an aggregate formed by aggregating active material particles, in which the active material particle is a particle including a cathode active material as a formation material and a carbonaceous material is provided on a surface of the particle, a ratio between a weight ratio of carbon contained in the aggregate to a BET specific surface area of the cathode material is in a range of 0.08 to 0.2, a tap density is in a range of 0.9 g/cm | 04-21-2016 |
20160111718 | ELECTRODE COMPOSITION, ELECTROCHEMICAL CELL AND METHOD OF MAKING ELECTROCHEMICAL CELLS - An electrode composition is disclosed that includes a silicon alloy containing silicon, iron and optionally carbon. The silicon alloy is capable of undergoing lithiation and delithiation. The electrode composition also includes graphitic carbon, a binder, and a conductive additive containing carbon nanotubes. Such an electrode composition may be used in a negative electrode for an electrochemical cell that also contains a positive electrode and an electrolyte. Also disclosed are batteries containing such electrochemical cells and methods of making electrochemical cells using the electrode composition. | 04-21-2016 |
20160111722 | CENTRIFUGATION-ASSISTED PREPARATION OF ADDITIVE-FREE CARBON-DECORATED MAGNETITE ELECTRODES - Iron nanoparticles that are useful for constructing electrodes for lithium ion batteries and a method of making said particles is disclosed herein. The nanoparticles may include magnetite. The electrode may be constructed by centrifuging the nanoparticles to a current collector, such as a disc of copper, without the use of an extrinsic binder. The solvothermal method of making nanoparticles decreases the time of the procedure from about 24 hours to about 75 minutes. The method of making electrode decreases the complexity and number of steps compared to the conventional procedure to prepare an electrode, and eliminates the use of additives (binder and current enhancer) and toxic NMP solvents in the electrode preparation process. | 04-21-2016 |
20160111727 | Metal-Ion Battery with Offset Potential Material - A metal-ion battery includes an anode assembly and a cathode assembly ionically coupled by an electrolyte. The anode assembly includes a current collector and an anode material capable of intercalation of metal-ions. When the battery is at rest, ionic transfer between the anode and cathode at a minimum and the anode assembly potential with respect to the electrolyte may increase. The increased potential may exceed the reduction potential of the current collector material causing ions to erode from the current collector and contaminate the cathode. The use of a metal, metal alloy or metal compound reduces the rest potential and erosion of the current collector. For example, a lithium foil physically in contact with a copper current collector in a lithium-ion battery reduces the overall anode potential thereby reducing copper dissolution. | 04-21-2016 |
20160118662 | SPHERICAL PARTICLES, PRODUCTION AND USE THEREOF - Spherical particles of transition metal carbonates, transition metal hydroxides or transition metal carbonate hydroxides comprising cations of at least two transition metals selected from nickel, cobalt, manganese, titanium, vanadium, chromium and iron, wherein the concentration of at least one of the transition metal cations, plotted against the radius of the particle in question, has at least one relative extreme value which is neither in the center nor at the edge of the particle in question. | 04-28-2016 |
20160126549 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, AND METHOD FOR PRODUCING SAME - The present invention relates to a lithium manganese composite oxide having a metal-containing compound film and a carbon coating, in which at least a part of a surface of the lithium manganese composite oxide represented by Formula (1) is coated with the metal-containing compound film, and at least a part of the surface thereof is further coated with the carbon coating. The present invention can provide a positive electrode material capable of improving the discharge characteristics and the capacity retention rate after cycles of lithium ion secondary batteries. | 05-05-2016 |
20160131609 | CARBON MATERIAL SUPPORTED HOLLOW METAL OXIDE NANOPARTICLES, METHODS AND APPLICATIONS - A method for preparing a material composition comprising a hollow transition metal oxide nanoparticle supported upon a carbon material support includes a solution impregnation process step, followed by a thermal reduction process step and finally a thermal oxidation process step. The material composition, an electrode and an electrical component such as but not limited to a battery are all predicated at least in-part upon the material composition prepared in accord with the foregoing method. The foregoing material composition, electrode, battery and method may ultimately provide a LIB with enhanced performance. | 05-12-2016 |
20160141602 | 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 | 05-19-2016 |
20160149213 | NEGATIVE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAME - The present invention provides a negative active material for a secondary battery with an improved expansion rate, which is formed by a formula below, and in which an expansion rate of the negative active material after 50 cycles is 70 to 150%, and an amorphization degree on a matrix within an alloy has a range of 25% or more, and Si has a range of 60 to 70%, Ti has a range of 9 to 14%, Fe has a range of 9 to 14%, and Al has a range larger than 1% and less than 20%. Formula: Si | 05-26-2016 |
20160149214 | SILICON OXIDE PARTICLES, MAKING METHOD, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR - Silicon oxide particles each comprising an inner portion having an iron content of 10-1,000 ppm and an outer portion having an iron content of up to 30 ppm are suitable as negative electrode active material in nonaqueous electrolyte secondary batteries. Using a negative electrode comprising the silicon oxide particles as active material, a lithium ion secondary battery or electrochemical capacitor having a high capacity and improved cycle performance can be constructed. | 05-26-2016 |
20160156028 | POSITIVE ACTIVE MATERIAL, LITHIUM BATTERIES INCLUDING THE POSITIVE ACTIVE MATERIAL, AND METHOD OF PREPARING THE POSITIVE ACTIVE MATERIAL | 06-02-2016 |
20160164074 | METHOD FOR PRODUCING POLYANIONIC POSITIVE ELECTRODE ACTIVE MATERIAL COMPOSITE PARTICLES, AND POLYANIONIC POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR-GRAPHITE OXIDE COMPOSITE GRANULATED BODIES - A method is provided for producing polyanionic positive electrode active material composite particles, which comprises: a step 1 wherein precursor composite granulated bodies, each of which contains a polyanionic positive electrode active material precursor particle in graphite oxide, are formed by mixing a polyanionic positive electrode active material precursor and graphite oxide; and a step 2 wherein the precursor composite granulated bodies obtained in step 1 are heated at 500° C. or higher in an inert atmosphere or in a reducing atmosphere. The maximum intensity of the X-ray diffraction peak based on the positive electrode active material is less than 50% of the maximum intensity of the X-ray diffraction peak based on the materials other than the positive electrode active material. The maximum intensity of the X-ray diffraction peak based on the positive electrode active material is 50% or more of the maximum intensity of the X-ray diffraction peak based on the materials other than the positive electrode active material. | 06-09-2016 |
20160172124 | COMPOSITE OF METAL OXIDE NANOPARTICLES AND CARBON, METHOD OF PRODUCTION THEREOF, ELECTRODE AND ELECTROCHEMICAL ELEMENT EMPLOYING SAID COMPOSITE | 06-16-2016 |
20160181611 | COMPOSITE CATHODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND CATHODE AND LITHIUM BATTERY INCLUDING THE COMPOSITE CATHODE ACTIVE MATERIAL | 06-23-2016 |
20160190553 | NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY CONTAINING NEGATIVE ELECTRODE ACTIVE MATERIAL - In a nonaqueous electrolyte secondary battery containing SiO | 06-30-2016 |
20160190562 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - A negative electrode for a lithium ion secondary battery, including a negative electrode active material layer containing a negative electrode active material including silicon (Si) as a constituent element, in which a coating including iron (Fe), manganese (Mn) and oxygen (O) as constituent elements is formed on a surface of the negative electrode active material layer. | 06-30-2016 |
20160190569 | POSITIVE ELECTRODE ACTIVE MATERIAL, NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, a positive electrode active material includes particles and a coating layer. The particles includes a first compound represented by the general formula LiMSO | 06-30-2016 |
20160190581 | NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes a first positive electrode active material which is represented by general formula LiMSO | 06-30-2016 |
20160190583 | ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - There are provided an electrode material for a lithium ion secondary battery having a high discharge capacity and a high mass energy density at a low temperature or at a high-speed charge and discharge, an electrode for a lithium ion secondary battery, and a lithium ion secondary battery. | 06-30-2016 |
20160190584 | LI-ION BATTERY POSITIVE ELECTRODE MATERIAL, METHOD PREPARING THE SAME AND APPLICATION THEREOF - The present application discloses a Li-ion battery positive electrode material, a method for preparing the same and application thereof. The positive electrode material can reduce the relative volume change rate of the positive electrode material in insertion and deinsertion states of Li ions, and meanwhile can efficiently restrain Mn in the positive material from dissolving out during charging and discharging cycles, thereby improving the crystal structure stability of the positive electrode in the working state. A Li-ion battery applying such a positive electrode material has excellent cycle performance, safety and high-temperature storage performance. | 06-30-2016 |
20160190586 | ELECTRODE, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK - According to one embodiment, an electrode is provided. This electrode includes a current collector and an electrode layer formed on the current collector. The electrode layer contains an active material represented by LiMn | 06-30-2016 |
20160190635 | ELETRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - An electrode material for a lithium ion secondary battery of the present invention includes an electrode active material made of LiFe | 06-30-2016 |
20160197338 | LITHIUM ION BATTERY CATHODES, METHODS OF MAKING, AND METHODS OF USE THEREOF | 07-07-2016 |
20160204440 | GRAPHENE OXIDE, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY USING GRAPHENE OXIDE, METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, NONAQUEOUS SECONDARY BATTERY, AND ELECTRONIC DEVICE | 07-14-2016 |
20170237064 | ELECTRODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY | 08-17-2017 |
20170237121 | LITHIUM-ION SECONDARY BATTERY | 08-17-2017 |
20220140330 | GROUP VIII PERIOD 4 ELEMENT (Fe, Co, Ni) METAL SITE AND Cl "O" SITE MODIFIED LITHIUM MANGANESE BASED CATHODE MATERIAL, METHOD OF PREPARING THE SAME, AND LI ELECTROCHEMICAL CELL CONTAINING THE SAME - A process for preparing a cathode material comprising a compound of the form Li | 05-05-2022 |