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Nickel component is active material

Subclass of:

429 - Chemistry: electrical current producing apparatus, product, and process

429122000 - CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS

429209000 - Electrode

429218100 - Chemically specified inorganic electrochemically active material containing

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DocumentTitleDate
20130045421NICKEL-COBALT-MAGANESE-BASED COMPOUND PARTICLES AND PROCESS FOR PRODUCING THE NICKEL-COBALT-MANGANESE-BASED COMPOUND PARTICLES, LITHIUM COMPOSITE OXIDE PARTICLES AND PROCESS FOR PRODUCING THE LITHIUM COMPOSITE OXIDE PARTICLES, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to nickel-cobalt-manganese-based compound particles which have a volume-based average secondary particle diameter (D50) of 3.0 to 25.0 μm, wherein the volume-based average secondary particle diameter (D50) and a half value width (W) of the peak in volume-based particle size distribution of secondary particles thereof satisfy the relational formula: W≦0.4×D50, and can be produced by dropping a metal salt-containing solution and an alkali solution to an alkali solution at the same time, followed by subjecting the obtained reaction solution to neutralization and precipitation reaction. The nickel-cobalt-manganese-based compound particles according to the present invention have a uniform particle size, a less content of very fine particles, a high crystallinity and a large primary particle diameter, and therefore are useful as a precursor of a positive electrode active substance used in a non-aqueous electrolyte secondary battery.02-21-2013
20090117465POSITIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY - A positive electrode includes a collector and a positive electrode mixture layer formed on the collector and containing a polyacrylonitrile based resin-containing binder and a positive electrode active material. The polyacrylonitrile in the positive electrode mixture layer is crosslinked and carbonized.05-07-2009
20090104529ELECTRODE FOR LITHIUM ION SECONDARY BATTERY - An object of the present invention is to provide an electrode for a lithium ion secondary battery that can ensure a high level of safety even when exposed to severe conditions such as a nail penetration test or crush test, and exhibit excellent output characteristics.04-23-2009
20100151325SEPARATOR AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - In a non-aqueous electrolyte secondary battery, a separator in which its dynamic hardness DH obtained when the load to an indenter reaches 12 kgf/cm06-17-2010
20130136991HIGH ENERGY/POWER DENSITY NICKEL OXIDE/HYDROXIDE MATERIALS AND NICKEL COBALT OXIDE/HYDROXIDE MATERIALS AND PRODUCTION THEREOF - According to one embodiment, a material includes a nickel oxide/hydroxide active film, wherein the nickel oxide/hydroxide active film has a physical characteristic of maintaining greater than about 80% charge over greater than 500 charge/discharge cycles, and wherein the nickel oxide/hydroxide active film has a physical characteristic of storing electrons at greater than about 0.5 electron per nickel atom.05-30-2013
20110195309NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material of a nonaqueous electrolyte secondary battery is improved by using an inexpensive lithium transition metal oxide containing nickel and manganese as main components. Output characteristics of the battery under various temperature conditions are thereby improved, and the battery is suitable as a power supply of a hybrid vehicle. The battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and a nonaqueous electrolyte prepared by dissolving a solute in a nonaqueous solvent. The positive electrode active material includes positive electrode active material particles composed of a lithium transition metal complex oxide having a layered structure containing nickel and manganese as main components, and at least one niobium-containing material selected from a Li—Nb—O compound and a Li—Ni—Nb—O compound, the at least one niobium-containing material being sintered onto surfaces of the positive electrode active material particles.08-11-2011
20120183857LITHIUM SECONDARY BATTERY - A lithium secondary battery includes: a positive electrode that contains a positive electrode active material; a negative electrode; and a nonaqueous electrolyte. The positive electrode active material is amorphous and is expressed by Li07-19-2012
20120183856ELECTRODE INCLUDING NANOSTRUCTURES FOR RECHARGEABLE CELLS - A lithium ion battery electrode includes silicon nanowires used for insertion of lithium ions and including a conductivity enhancement, the nanowires growth-rooted to the conductive substrate.07-19-2012
20130078520NICKEL MANGANESE COMPOSITE HYDROXIDE PARTICLES AND MANUFACTURING METHOD THEREOF, CATHODE ACTIVE MATERIAL FOR A NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, AND A NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided are nickel manganese composite hydroxide particles that are a precursor for forming cathode active material comprising lithium nickel manganese composite oxide having hollow structure of particles having a small and uniform particle size for obtaining a non-aqueous electrolyte secondary battery having high capacity, high output and good cyclability.03-28-2013
20130040202MIXED OXIDE POWDER CONTAINING THE ELEMENTS LITHIUM, MANGANESE, NICKEL AND COBALT AND METHOD FOR PRODUCING SAME - Mixed oxide which has the composition Li02-14-2013
20130040201HIGH CAPACITY LAYERED OXIDE CATHODS WITH ENHANCED RATE CAPABILITY - The present invention provides a surface modified cathode and method of making surface modified cathode with high discharge capacity and rate capability having a lithium-excess Li[M02-14-2013
20090155691POSITIVE ELECTRODE FOR A LITHIUM BATTERY - A method for producing a lithium alkali transition metal oxide for use as a positive electrode material for lithium secondary batteries by a precipitation method. The positive electrode material is a lithium alkali transition metal composite oxide and is prepared by mixing a solid state mixed with alkali and transition metal carbonate and a lithium source. The mixture is thermally treated to obtain a small amount of alkali metal residual in the lithium transition metal composite oxide cathode material.06-18-2009
20090155690NICKEL-METAL HYDRIDE RECHARGEABLE CELL - A positive electrode plate (06-18-2009
20100104944NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - A mixed positive electrode active material is used. The mixed positive electrode active material is obtained by mixing a layered oxide whose initial charge-discharge efficiency when lithium metal is used for a counter electrode is less than 100% (hereinafter referred to as a first layered oxide) and a layered oxide whose initial charge-discharge efficiency is 100% or more (hereinafter referred to as a second layered oxide). Examples of the first layered oxide include Li04-29-2010
20080254368CATHODE ACTIVE MATERIAL, CATHODE, NONAQUEOUS ELECTROLYTE BATTERY, AND METHOD FOR MANUFACTURING CATHODE - A cathode active material has: a lithium composite oxide which contains the highest proportion of nickel among constituent metal elements except lithium; and a phosphorus compound which is contained near the surface of the lithium composite oxide, a cathode including the cathode active material, and a method for manufacturing the cathode.10-16-2008
20130089787LITHIUM ION SECONDARY BATTERY - Disclosed is a lithium ion secondary battery which includes a positive electrode, a negative electrode and a nonaqueous electrolyte solution. The positive electrode contains, as the positive electrode active material, a lithium-transition metal composite oxide having a layered structure. The positive electrode active material includes at least one metal element M04-11-2013
20090305136Non-aqueous electrolyte secondary battery and method of manufacturing the same - A non-aqueous electrolyte secondary battery has a positive electrode (12-10-2009
20130071748CATHODE ACTIVE MATERIAL PRECURSOR PARTICLE, METHOD FOR PRODUCING THEREOF AND METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - A cathode active material precursor particle, a method for producing thereof and a method for producing cathode active material for a lithium secondary battery. The cathode active material precursor particle is capable of forming a cathode active material for a lithium secondary battery including a lithium composite oxide having a layered rock salt structure through lithium incorporation. The particles are characterized by the cathode active material precursor particle being formed into a substantially spherical shape and includes therein a large number of voids in a substantially uniform manner; and the cathode active material precursor particle has: an average particle diameter D50 of 0.5 to 5 μm; a specific surface area of 3 to 25 m03-21-2013
20100099027Li-Ni COMPOSITE OXIDE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to Li—Ni composite oxide particles for a non-aqueous electrolyte secondary battery which have a large charge/discharge capacity and are excellent in thermal stability under a charged condition. The above object can be achieved by the Li—Ni composite oxide particles for a non-aqueous electrolyte secondary battery, comprising a Li—Ni composite oxide whose secondary particles form core particles thereof and have a composition represented by the formula: Li04-22-2010
20090092900HEAT-RESISTANT INSULATING LAYER-PROVIDED SEPARATOR AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A heat-resistant insulating layer-provided separator includes a polyolefin layer and a heat-resistant insulating layer formed on one or both surfaces of the polyolefin layer and containing a heat-resistant resin and an oxidation-resistant ceramic particle. The heat-resistant insulating layer contains the oxidation-resistant ceramic particle in a proportion of from 60 to 90%.04-09-2009
20110020704POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND LITHIUM SECONDARY BATTERY - There is provided a positive electrode active material for lithium secondary batteries which suppresses gelation when kneaded with a binder resin in producing a positive electrode material and provides excellent coating properties. The positive electrode active material for lithium secondary batteries comprises a lithium composite oxide represented by the following general formula (1) and a Ca atom contained in the lithium composite oxide. When the positive electrode active material is analyzed by X-ray diffraction using Cu—Kα radiation as a radiation source, the intensity ratio (b/a) of (b) the diffraction peak at 2θ=18.7±0.2° to (a) the diffraction peak at 2θ=37.4±0.2° derived from CaO is from 10 to 150.01-27-2011
20130164623POSITIVE ELECTRODE ACTIVE MATERIAL - The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m06-27-2013
20080318125Positive Electrode for Alkaline Storage Battery and Alkaline Storage Battery - There are provided a low-cost positive electrode for an alkaline storage battery which retains an excellent current collectivity over a long period of time and a low-cost alkaline storage battery which retains an excellent charge/discharge efficiency over a long period of time. A positive electrode for an alkaline storage battery according to the present invention has a positive electrode substrate including a resin skeleton made of a resin and having a three-dimensional network structure and a nickel coating layer made of nickel and coating the resin skeleton and also having a void portion in which a plurality of pores are coupled in three dimensions and a positive electrode active material containing nickel hydroxide particles and filled in the void portion of the positive electrode substrate. Among them, the nickel coating layer has an average thickness of not less than 0.5 μm and not more than 5 μm. The proportion of the nickel coating layer to the positive electrode substrate is not less than 30 wt % and not more than 80 wt %. The filling amount of the positive electrode active material is not less than 3 times and not more than 10 times the weight of the positive electrode substrate.12-25-2008
20120270106POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY - To provide a positive electrode for nonaqueous secondary batteries having improved charge/discharge cycle characteristics, the positive electrode contains in its active material layer a compound represented by formula:10-25-2012
20110033749PROCESS FOR PRODUCTION OF CATHODE ACTIVE MATERIAL FOR LITHIUN ION SECONDARY BATTERY - To provide a process for producing a surface modified lithium-containing composite oxide, which is excellent in discharge capacity, volume capacity density, safety, durability for charge and discharge cycles and an excellent rate property, at a low production cost. The present invention is characterized in that a process for producing a surface modified lithium-containing composite oxide, wherein a lithium titanium composite oxide is contained in the surface layer of particles of a lithium-containing composite oxide represented by the formula: Li02-10-2011
20110281168LITHIUM COMPOSITE COMPOUND PARTICLES AND PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to lithium composite compound particles having a composition represented by the formula: Li11-17-2011
20100248033LITHIUM BATTERIES WITH NANO-COMPOSITE POSITIVE ELECTRODE MATERIAL - Provided is a positive electrode for a lithium ion battery, the electrode comprising a nano-crystalline layered-layered composite structure of a material having the general formula xLi09-30-2010
20120003542LITHIUM ION SECONDARY BATTERY - A high safety cathode active material having large capacity, suppressing deterioration in storage at high temperature, and ensuring thermal stability in a charged state is provided. A cathode active material represented by a composition formula of Li01-05-2012
20100183925Cation-Substituted Spinel Oxide and Oxyfluoride Cathodes for Lithium Ion Batteries - The present invention includes compositions and methods of making cation-substituted and fluorine-substituted spinel cathode compositions by firing a LiMn07-22-2010
20110287321SURFACE MODIFIED LITHIUM-CONTAINING COMPOSITE OXIDE FOR CATHODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND ITS PRODUCTION PROCESS - To provide a surface modified lithium-containing composite oxide having excellent discharge capacity, volume capacity density, safety, durability for charge and discharge cycles, and high rate property.11-24-2011
20090169998Lithium ion battery capable of being discharged to zero volts - A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Damage Potential Threshold (DPT).07-02-2009
20080280204Method For The Production Of Nickel Oxide Surfaces Having Increase Conductivity - The invention relates to a method for producing electrically conducting nickel oxide surfaces made of nickel-containing material. According to said method, the nickel surface is first degreased and is then roughened for approximately ten minutes in a solution containing about one percent of hydrochloric acid, said process being accelerated by adding hydrogen peroxide solution, resulting in the electrolyte turning green. The nickel surface is briefly wetted, the nickel material is introduced into a solution of 3.5 molar lye to which about ten percent of hydrogen peroxide is added and is kept therein for ten minutes, and the resulting nickel hydroxide surface is dehydrated in a subsequent thermal process and is then further oxidized to obtain nickel oxide. The invention further relates to a conductive boundary layer that is produced according to said method, the electrodes therefrom, and the use thereof in chlorine-alkali electrolysis processes, in fuel cells and storage batteries.11-13-2008
20090202909Positive Electrode Active Material for Alkaline Storage Battery, Positive Electrode for Alkaline Storage Battery, Alkaline Storage Battery, and Method for Manufacturing Positive Electrode Active Material for Alkaline Storage Battery - There are provided a positive electrode active material for an alkaline storage battery, a positive electrode for an alkaline storage battery, and an alkaline storage battery each of which has an excellent output characteristics and also has an excellent self-discharge characteristic and an excellent cycle lifetime characteristic. The positive electrode active material for an alkaline storage battery according to the present invention has nickel hydroxide particles each containing at least magnesium in a solid solution state and a cobalt compound layer coating the surface of each of the nickel hydroxide particles. Among them, the cobalt compound layer contains cobalt having an average valence of not less than 2.6 and not more than 3.0 and also contains sodium at a proportion of less than 0.10 wt % to the total weight of the cobalt compound layer. The positive electrode active material for an alkaline storage battery according to the present invention has a conductivity smaller than 1.0×1008-13-2009
20090148772LITHIUM-CONTAINING COMPOSITE OXIDE AND ITS PRODUCTION METHOD - The present invention provides a lithium-containing composite oxide for a positive electrode for a lithium secondary battery, which has a large volume capacity density and high safety, and excellent durability for charge and discharge cycles and charge and discharge rate property, and its production method.06-11-2009
20080268340NON AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD FOR PRODUCING SAME - A non-aqueous electrolyte secondary cell that has high capacity and excellent cycle characteristic while preventing cell swelling is provided. The positive electrode of the cell has, as the positive electrode active material, lithium nickel composite oxide represented by Li10-30-2008
20100081055CATHODE MATERIAL FOR Li ION SECONDARY BATTERY AND Li ION SECONDARY BATTERY USING THE SAME - A cathode material with excellent capacity and output characteristics and safety, and a lithium ion secondary battery using the same is provided. The invention relates to a cathode material which includes a mixture of a cathode active material having a large primary particle size with excellent capacity characteristics and represented by the composition formula: Li04-01-2010
20090087747SINTERED CATHODE COMPOSITIONS - Provided are compositions useful as cathodes in lithium-ion electrochemical cells. The compositions include particles that include transition metal oxides that have at least two distinct phases with different compositions. Each of the distinct phases comprises a layered O3 crystal structure.04-02-2009
20100086853POSITIVE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES HAVING A HIGH SPECIFIC DISCHARGE CAPACITY AND PROCESSES FOR THE SYNTHESIS OF THESE MATERIALS - Positive electrode active materials are described that have a very high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li04-08-2010
20090104530LITHIUM TRANSITION METAL-BASED COMPOUND POWDER FOR POSITIVE ELECTRODE MATERIAL IN LITHIUM RECHARGEABLE BATTERY, METHOD FOR MANUFACTURING THE POWDER, SPRAY DRIED PRODUCT OF THE POWDER, FIRING PRECURSOR OF THE POWDER, AND POSITIVE ELECTRODE FOR LITHIUM RECHARGEABLE BATTERY AND LITHIUM RECHARGEABLE BATTERY USING THE POWDER - There is provided a powder of a lithium transition-metal compound for a positive-electrode material in a lithium secondary battery, in which the use of the powder as that of a positive-electrode material in a lithium secondary battery achieves a good balance among improvement in battery performance, cost reduction, resistance to a higher voltage, and a higher level of safety. The powder of the lithium transition-metal compound for a positive-electrode material in a lithium secondary battery is characterized in that in a mercury intrusion curve obtained by mercury intrusion porosimetry, the amount of mercury intruded is in the range of 0.8 cm04-23-2009
20090263719Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery uses as its positive electrode active material a mixture of a first lithium-containing transition metal oxide containing nickel and manganese as transition metals and having a crystal structure belonging to the space group R3m and a second lithium-containing transition metal oxide containing nickel, cobalt, and manganese as transition metals and having a crystal structure belonging to the space group R3m, or a mixture of the first lithium-containing transition metal oxide and a lithium cobalt oxide. The first lithium-containing transition metal oxide is Li10-22-2009
20110200880POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND LITHIUM SECONDARY BATTERY USING THE SAME - A positive electrode active material for lithium secondary batteries having a lithium-containing transition metal oxide having a layered structure and represented by the general formula Li08-18-2011
20110171529ELECTRODE ACTIVE MATERIAL, METHOD FOR PRODUCING SAME, ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, AND NONAQUEOUS SECONDARY BATTERY - An electrode active material includes particles of a lithium-containing composite oxide represented by the general compositional formula: Li07-14-2011
20110171528Solid state electrolytes having high lithium ion conduction - A method for making ion conducting films includes the use of primary inorganic chemicals, which are preferably water soluble; formulating the solution with appropriate solvent, preferably deionized water; and spray depositing the solid electrolyte matrix on a heated substrate, preferably at 100 to 400° C. using a spray deposition system. In the case of lithium, the deposition step is then followed by lithiation or addition of lithium, then thermal processing, at temperatures preferably ranging between 100 and 500° C., to obtain a high lithium ion conducting inorganic solid state electrolyte. The method may be used for other ionic conductors to make electrolytes for various applications. The electrolyte may be incorporated into a lithium ion battery.07-14-2011
20080206643METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS SECONDARY BATTERY - There is provided a simple and easy method of preparation of a positive electrode active material for a non-aqueous secondary battery which comprises a compound comprising lithium, nickel and manganese and having a layered structure. Said method comprises firing a mixture of (1) at least one member selected from the group consisting of dinickel trioxide and boron compounds and (2) one or more metal compounds comprising lithium, nickel and manganese as their metal elements.08-28-2008
20090104531POSITIVE ELECTRODE ACTIVE MATERIAL POWDER - The positive electrode active material powder of the present invention is a positive electrode active material powder, including primary particles and aggregated particles of primary particles, wherein an average particle diameter of primary particles and aggregated particles of primary particles in the powder is 0.1 μm or more and 3 μm or less on a volume basis, the percentage of [volumetric sum of particles having a particle diameter of 5 μm or more]/[volumetric sum of entire particles] is 10% or less, and a BET specific surface area of the powder is more than 2 m04-23-2009
20120295163ELECTRIC STORAGE DEVICE AND POSITIVE ELECTRODE - An electric storage device is provided with a positive electrode having a positive-electrode mixture layer including a positive-electrode active material. The positive-electrode active material includes a lithium-vanadium-phosphate from 8% to 70% by mass and a lithium-nickel complex oxide from 20% to 82% by mass. A coating concentration of the positive-electrode mixture layer is from 4 mg/cm11-22-2012
20100143802MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL AND POSITIVE ELECTRODE ACTIVE MATERIAL - A positive electrode active material for nonaqueous electrolyte secondary batteries includes a coating layer containing at least nickel (Ni) and/or manganese (Mn) on the surface of a complex oxide particle containing lithium (Li) and cobalt (Co), wherein a binding energy value obtained by analysis of a surface state by an ESCA surface analysis on the surface of the coating layer is 642.0 eV or more and not more than 642.5 eV in an Mn2p3 peak, and a peak interval of Co—Mn is 137.6 eV or more and not more than 138.0 eV.06-10-2010
20090169999NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including a nickel-containing lithium composite oxide as a positive electrode active material, a negative electrode, a separator interposed between the positive electrode and the negative electrode. The separator includes at least one selected from the group consisting of a layer including a polymer of a monomer containing halogen atoms but not containing a hydrogen atom and a layer including an inorganic oxide.07-02-2009
20080280205LITHIUM MIXED METAL OXIDE CATHODE COMPOSITIONS AND LITHIUM-ION ELECTROCHEMICAL CELLS INCORPORATING SAME - Provided are cathode compositions for a lithium-ion battery having the formula Li[Li11-13-2008
20080311473CATHODE ACTIVE MATERIAL FOR A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, AND A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY THAT USES CATHODE ACTIVE MATERIAL - The present invention provides a cathode active material that makes possible a high capacity nonaqueous electrolyte secondary battery that has excellent discharge load characteristics that provide both good cycle characteristics and thermal stability. The cathode active material comprises a lithium nickel composite oxide having the compositional formula LiNi12-18-2008
20090162751LITHIUM ION SECONDARY BATTERY - A lithium secondary battery having high power characteristics and excellent life characteristics in which the anode comprises at least carbon as an anode active material, and an SBR latex and a cellulosic viscosity improver as a binder material, the carbon material has an inter layer distance (d06-25-2009
20080318126CATHODE MIX AND NONAQUEOUS ELECTROLYTE BATTERY - A cathode mix for nonaqueous electrolyte secondary batteries includes a cathode active material having an olivine crystal structure, and polyvinyl pyrrolidone. Also, a nonaqueous electrolyte secondary battery includes: a cathode; an anode; and a nonaqueous electrolyte, wherein the cathode includes: a cathode active material having an olivine crystal structure; and polyvinyl pyrrolidone.12-25-2008
20090081550NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - To curb a decline in the high-rate performance of non-aqueous electrolyte secondary batteries and improve safety at the time of an internal short circuit, a non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte wherein the positive electrode includes a positive electrode active material capable of absorbing and desorbing lithium ions, the positive electrode active material includes a secondary particle, and the secondary particle is an aggregate containing primary particles and a silicon oxide. The primary particles contain a lithium nickel composite oxide. The silicon oxide is present in at least grain boundaries between the primary particles.03-26-2009
20090053604ALKALINE PRIMARY BATTERY - An alkaline primary battery of the present invention includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a separator interposed between the positive electrode and the negative electrode, and an electrolyte. The negative electrode further includes at least one compound selected from the group consisting of a tetramethylammonium compound, a tetraethylammonium compound, and a tetrapropylammonium compound.02-26-2009
20110143205NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY, NONAQUEOUS SECONDARY BATTERY, AND USING METHOD - A coin type battery 06-16-2011
20090011334LITHIUM SECONDARY BATTERY AND POSITIVE ELECTRODE MATERIAL THEREOF - A lithium nickel manganese cobalt complex oxide powder for a lithium secondary battery positive electrode material, which is composed of a crystal structure having a layered structure, and the composition thereof is expressed by the following formula:01-08-2009
20090233174Method for Manufacturing Battery, Battery Manufactured by The Method, and Method for Inspecting Battery - Provided are a method for manufacturing highly reliable batteries and a method for inspecting batteries that can achieve firm, low-resistance welding upon welding of points of contact between a lead welded to the lid of a battery and an upper current collecting plate and that can eliminate batteries with defective welds.09-17-2009
20080261115Non-aqueous electrolyte secondary battery and positive electrode - A non-aqueous electrolyte secondary battery includes a positive electrode having a positive electrode mixture, a negative electrode, and a non-aqueous electrolyte. The positive electrode mixture contains as a positive electrode active material Li10-23-2008
20090258296LITHIUM-CONTAINING COMPOSITE OXIDE AND ITS PRODUCTION METHOD - To provide a lithium/nickel/cobalt/manganese-containing composite oxide powder which has a high weight capacity density, a high packing property, an excellent cycle property, an excellent discharge rate property and an excellent safety, and which has little content of free alkalis and is free from gelation at a time of producing a slurry.10-15-2009
20100173200LITHIUM SECONDARY BATTERY - An objective of the present invention is to provide a lithium secondary battery which can achieve a higher capacity and a longer life without reduction in a lower voltage in the battery. In the present invention, a compound represented by general formula (I) described below is used as a cathode active material, and a compound represented by general formula (II) described below is used as an anode active material;07-08-2010
20110129734Cathode material for lithium ion secondary battery and lithium ion secondary battery using it - A lithium ion secondary battery according to the present invention uses a cathode material obtained by mixing a first cathode active substance represented by a compositional formula: Li06-02-2011
20100216024METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL AND POSITIVE ELECTRODE ACTIVE MATERIAL - The object of the present invention is to provide a method for producing simply a positive electrode active material which can further increase charge-discharge capacity of secondary batteries when the positive electrode active material is used for positive electrode of secondary batteries, particularly non-aqueous electrolyte secondary batteries. A method for producing a positive electrode active material includes the step of heat-treating a lithium mixed metal oxide represented by the formula Li08-26-2010
20080213665NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material of a nonaqueous electrolyte secondary battery according to an embodiment of the invention includes lithium cobalt compound oxide in which at least zirconium and magnesium are added, and lithium nickel manganese compound oxide having a layered structure. The lithium cobalt compound oxide contains at least two types of zirconium- and magnesium-added lithium cobalt compound oxides having zirconium added amounts different from each other. The charging potential of the positive electrode active material is more than 4.3 V and 4.6 V or less versus lithium. With such a constitution, a nonaqueous electrolyte secondary battery using a plurality of positive electrode active materials having different physical properties which not only is capable of being charged at a high charging voltage of more than 4.3 V and 4.6 V or less versus lithium, but also has excellent charging/discharging cycle property and excellent charged storage properties without lowering the battery capacity.09-04-2008
20090011335Positive electrode active material, method of manufacturing the positive electrode active material, and non-aqueous electrolyte secondary battery - A high-capacity positive electrode active material is provided that enables a non-aqueous electrolyte secondary battery to have excellent load characteristics and high initial charge-discharge efficiency. A non-aqueous electrolyte secondary battery has a positive electrode, a negative electrode, and a non-aqueous electrolyte, and performs charge and discharge by transferring lithium ions between the positive electrode and the negative electrode. The positive electrode has a positive electrode mixture and a positive electrode current collector. The positive electrode mixture contains a positive electrode active material, a conductive agent, and a binder agent (binder). The positive electrode active material includes Li01-08-2009
20100221609POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY USING THE SAME - This invention provides a positive electrode material having high capacity and safety, and a lithium ion secondary battery using the positive electrode material, the lithium ion secondary battery using a positive electrode active substance comprising a first transition metal oxide represented by the compositional formula: Li09-02-2010
20100136429NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode (06-03-2010
20090170000ELECTRODE FOR AN ELECTROCHEMICAL CELL COMPRISING MESOPOROUS NICKEL HYDROXIDE - An electrode for an electrochemical cell comprises mesoporous nickel hydroxide substantially free from metallic nickel or nickel oxide, together with a conductivity enhancer and a binder.07-02-2009
20110117434POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, FABRICATION METHOD THEREOF, POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material for non-aqueous electrolyte secondary battery is improved so that a reaction between the positive electrode active material and a non-aqueous electrolyte is restricted in a case where charging voltage is increased.05-19-2011
20090104528Electrode for Lithium Secondary Battery, Lithium Secondary Battery and Method for Producing the Same - An electrode for a lithium secondary battery including a sheet-like current collector and an active material layer carried on the current collector. The active material layer is capable of absorbing and desorbing lithium, and the active material layer includes a plurality of columnar particles having at least one bend. An angle θ04-23-2009
20130136990CATHODE ACTIVE MATERIAL, METHOD FOR MAKING THE SAME AND LITHIUM ION BATTERY USING THE SAME - A cathode active material of a lithium ion battery includes a number of LiNi05-30-2013
20100310937THIN FILM ALLOY ELECTRODES - Thin film alloy electrodes are provided that are useful as negative electrodes in lithium-ion electrochemical cells. The alloys include aluminum and at least one additional electrochemically active metal or composite. They can be used as a current collector or as a complete electrode.12-09-2010
20100310938NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention mainly relates to non-aqueous electrolyte secondary batteries. The present invention intends to provide a non-aqueous electrolyte secondary battery having excellent cycle characteristics and excellent storage characteristics.12-09-2010
20090068561POSITIVE ACTIVE MATERIAL FOR LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE SAME - A positive active material according to one embodiment of the present invention includes an internal bulk part and an external bulk part surrounding the internal bulk part and has a continuous concentration gradient of the metal composition from an interface between the internal bulk part and the external bulk part to the surface of the active material. The provided positive active material in which the metal composition is distributed in a continuous concentration gradient has excellent electrochemical characteristics such as a cycle life, capacity, and thermal stability.03-12-2009
20090035660NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery of the invention uses as positive electrode active material a lithium transition metal compound expressed by Li02-05-2009
20090035659Non-Aqueous Electrolyte Secondary Battery - A lithium-containing composite oxide represented by the formula 1: Li02-05-2009
20110111300INTERMEDIATE LAYERS FOR ELECTRODE FABRICATION - Provided are novel electrodes for use in lithium ion batteries. An electrode includes one or more intermediate layers positioned between a substrate and an electrochemically active material. Intermediate layers may be made from chromium, titanium, tantalum, tungsten, nickel, molybdenum, lithium, as well as other materials and their combinations. An intermediate layer may protect the substrate, help to redistribute catalyst during deposition of the electrochemically active material, improve adhesion between the active material and substrate, and other purposes. In certain embodiments, an active material includes one or more high capacity active materials, such as silicon, tin, and germanium. These materials tend to swell during cycling and may loose mechanical and/or electrical connection to the substrate. A flexible intermediate layer may compensate for swelling and provide a robust adhesion interface. Provided also are novel methods of fabricating electrodes containing one or more intermediate layers.05-12-2011
20130149609LITHIUM METAL OXIDES WITH MULTIPLE PHASES AND STABLE HIGH ENERGY ELECTROCHEMICAL CYCLING - Electrochemically active material comprising a lithium metal oxide composition approximately represented by the formula Li06-13-2013
20110033750POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material for a non-aqueous electrolyte secondary battery of the present invention includes composite oxide particles including lithium, nickel, and an element M, the element M being at least one of aluminum and cobalt. The composite oxide particles include primary particles and each particle of the primary particles includes a surface portion and an inner portion. A content of the element M in the surface portion is higher than a content of the element M in the inner portion, and a proportion of the primary particles relative to all of the composite oxide particles is 80 to 100 wt %. According to the invention, a positive electrode active material for a non-aqueous electrolyte secondary battery that has excellent cycle characteristics and storage characteristics and is suitable for use in a wide range of the state of charge and in a high-temperature environment and a non-aqueous electrolyte secondary battery using the same can be obtained.02-10-2011
20110244331DOPED POSITIVE ELECTRODE ACTIVE MATERIALS AND LITHIUM ION SECONDARY BATTERY CONSTRUCTED THEREFROM - Positive electrode active materials comprising a dopant in an amount of 0.1 to 10 mole percent of Mg, Ca, Sr, Ba, Zn, Cd or a combination thereof are described that have high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li10-06-2011
20110212367Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a non-aqueous electrolyte. The positive electrode active material includes a lithium-nickel-manganese composite oxide having a hexagonal layered rock-salt structure that belongs to the space group R-3m, and contains lithium in 3b sites that contain transition metals. The lithium-nickel-manganese composite oxide is represented by the molecular formula Li[Li09-01-2011
20110212366Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a non-aqueous electrolyte. The positive electrode active material includes a lithium-nickel-manganese composite oxide having a hexagonal layered rock-salt structure that belongs to the space group R-3m, and contains lithium in 3b sites that contain transition metals. The lithium-nickel-manganese composite oxide is represented by the molecular formula Li[Li09-01-2011
20110151328CATHODE MATERIALS AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME - Provided is a cathode active material composed of lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide contains nickel in an amount of 40% or higher, based on the total weight of transition metals, and the cathode active material comprises a first coating layer provided on the surface thereof and a second coating layer provided on the surface of the first coating layer, wherein the first coating layer is composed of a non-reactive material selected from the group consisting of oxides, nitrides, sulfides and mixtures or complexes thereof and the second coating layer is composed of a carbon-based material.06-23-2011
20110086274CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material based on lithium nickel-manganese-cobalt oxide represented by Formula 1, wherein an ion-conductive solid compound and conductive carbon are applied to a surface of the lithium nickel-manganese-cobalt oxide. A lithium secondary battery having the disclosed cathode active material has improved rate properties and high temperature stability, in turn embodying excellent cell performance.04-14-2011
20090029253POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY WITH NONAQUEOUS ELECTROLYTE, AND BATTERY USING THE SAME - An object of the present invention is to provide a positive electrode material for non-aqueous electrolyte lithium-ion battery which capable of discharging high output power and inhibiting cracking of secondary particle in the cyclic endurance at a high temperature. The above object can be attained by a positive electrode material for non-aqueous electrolyte lithium-ion battery of the present invention, characterized in that said material comprises secondary particles composed of primary particles of lithium nickel composite oxide containing the primary particles having different aspect ratios, and that at least a part of said primary particles having different aspect ratios are arranged so as to make the longitudinal direction (the long side direction) thereof oriented toward the center of the secondary particle.01-29-2009
20100055567POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE USING THE SAME AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material includes: a particle containing a positive electrode material capable of intercalating and deintercalating an electrode reactant; and a film provided in at least a part of the particle and having a peak of C03-04-2010
20130157136COATING OF DISORDERED CARBON ACTIVE MATERIAL USING WATER-BASED BINDER SLURRY - An electrochemical cell manufactured by coating a conductive substrate of an electrode with a disordered carbon active material using a water-based binder slurry. An exemplary binder slurry includes at least one disordered carbon material, carboxymethyl cellulose (CMC), styrene butadiene rubber (SBR), and water.06-20-2013
20110177391NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery using lithium-containing transition metal composite oxide which has a layer structure, contains a lot of Ni and Mn and is inexpensive as a positive electrode active material and attaining high output characteristics even under low temperature environment is provided.07-21-2011
20110081579ALKALINE DRY BATTERY AND METHOD FOR PRODUCING THE SAME - An alkaline dry battery according to the invention includes a hollow cylindrical positive electrode mixture including a positive electrode active material; a gelled negative electrode filled into the hollow of the positive electrode mixture and including a negative electrode active material; a separator disposed between the positive electrode mixture and the gelled negative electrode; a negative electrode current collector inserted into the gelled negative electrode; a negative electrode terminal plate electrically connected to the negative electrode current collector; and an electrolyte. The negative electrode current collector includes brass having an average crystal particle size of 0.015 mm or greater.04-07-2011
20110081578CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material based on lithium nickel-manganese-cobalt oxide represented by Formula 1, wherein the lithium nickel-manganese-cobalt oxide has nickel content of at least 40% among overall transition metals and is coated with an ion-conductive solid compound at a surface thereof. A lithium secondary battery having the disclosed cathode active material has advantages of not deteriorating electrical conductivity while maintaining high temperature stability, so as to efficiently provide high charge capacity.04-07-2011
20100239910NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery including a positive electrode having a positive electrode mixture layer containing a positive electrode active material, a binder, and a conductive agent, and a negative electrode having a negative electrode active material capable of intercalating and deintercalating lithium. The positive electrode active material includes a layered lithium-transition metal composite oxide represented by the compositional formula Li09-23-2010
20100112447POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A positive electrode active material for a non-aqueous electrolyte secondary battery is provided. The positive electrode active material includes a composite oxide containing lithium and metal M other than lithium, and M contains Ni, Mn, and Co. The molar ratio of Ni to the total of Ni, Mn, and Co is from 0.45 to 0.65, and the molar ratio of Mn to the total of Ni, Mn, and Co is from 0.15 to 0.35. The positive electrode active material has a pressed density under a compression of 60 MPa of 3.3 g/cm05-06-2010
20110250499POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND LITHIUM ION SECONDARY BATTERY - Disclosed is a positive electrode active material for a lithium ion secondary battery, including lithium composite oxide particles containing nickel, manganese and cobalt, the lithium composite oxide particles being a layered compound having a hexagonal crystal structure, and exhibiting a powder X-ray diffraction pattern obtained by using CuKα radiation at 25° C. in which a maximum peak within a range of 2θ=44° to 45° is present at 2θ=44.4° to 45°. Also disclosed is a lithium ion secondary battery including: a positive electrode including a positive electrode active material capable of absorbing and desorbing lithium ions; a negative electrode including a negative electrode active material capable of absorbing and desorbing lithium ions; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein the positive electrode active material is the above positive electrode active material for a lithium ion secondary battery.10-13-2011
20110151329LITHIATED OXIDE FOR A POSITIVE ELECTRODE OF AN ALKALINE ACCUMULATOR - A positive electrode of an accumulator with an alkaline electrolyte comprising a nickel-based hydroxide and a lithiated oxide of formula Li06-23-2011
20080274405Cathode Active Material for Alkaline Battery and Manufacturing Method Thereof, and Alkaline Battery - The present invention is to provide a cathode active material for an alkaline battery with a lamellar crystal structure including nickel oxyhydroxide. The cathode active material has a diffraction peak at a position that ranges from 8.4 degrees to 10.4 degrees in diffraction angle 2θ by X-ray diffraction using CuKα-rays. In addition, the present invention provides an alkaline battery having a cathode having a cathode active material, an anode having an anode active material, and an alkaline water solution as an electrolytic solution. Furthermore, the present invention provides a manufacturing method for a cathode active material for an alkaline battery with a lamellar crystal structure including nickel oxyhydroxide. The manufacturing method has an oxidation process for manufacturing the cathode active material by oxidizing a starting material made from β-type nickel hydroxide with a lamellar crystal structure in an airstream including alkaline water solution or alkali.11-06-2008
20090029254Cathode active material and non-aqueous electrolyte secondary battery using the same - A cathode active material having a large capacity and improved charge/discharge cycle characteristics is disclosed. A battery has a cathode (01-29-2009
20080254367LITHIUM SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTIC SOLUTION - The sudden generation of heat being frequently caused in the case of the overcharge of a lithium secondary cell which have a positive electrode comprising a composite metal oxide of lithium and cobalt or a composite metal oxide of lithium and nickel, a negative electrode comprising metallic lithium, a lithium alloy or a material capable of occluding and releasing lithium, and a nonaqueous electrolyte solution comprising a nonaqueous solvent and an electrolyte dissolved therein can be efficiently prevented by the addition, to the nonaqueous electrolyte solution, of an organic compound which, when the lithium secondary cell is overcharged, decomposes into a decomposition product capable of dissolving out the cobalt or nickel contained in the positive electrode and depositing it ion the negative electrode (for example, a tert-alkylbenzene derivative).10-16-2008
20110052990LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery including a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte. The positive electrode active material is a lithium transition metal oxide that contains niobium and is represented by xLi[Li03-03-2011
20100173199SURFACE MODIFIED LITHIUM-CONTAINING COMPOSITE OXIDE FOR CATHODE ACTIVE MATERIAL FOR LITHIUN ION SECONDARY BATTERY AND ITS PRODUCTION PROCESS - To provide a surface modified lithium-containing composite oxide for a cathode active material for a lithium ion secondary cell, which is excellent in volume capacity density, safety, durability for charge and discharge cycles and an excellent rate property, and its production process.07-08-2010
20100159326PLATE-LIKE PARTICLE FOR CATHODE ACTIVE MATERIAL OF A LITHIUM SECONDARY BATTERY, A CATHODE ACTIVE MATERIAL FILM OF A LITHIUM SECONDARY BATTERY, AND A LITHIUM SECONDARY BATTERY - An object of the present invention is to provide a lithium secondary battery which has improved capacity, durability, and rate characteristic as compared with conventional lithium secondary batteries. A plate-like particle or a film for a lithium secondary battery cathode active material is represented by the following general formula:06-24-2010
20100159325PLATE-LIKE PARTICLE FOR CATHODE ACTIVE MATERIAL OF A LITHIUM SECONDARY BATTERY, A CATHODE ACTIVE MATERIAL FILM OF A LITHIUM SECONDARY BATTERY, AND A LITHIUM SECONDARY BATTERY - An object of the present invention is to provide a multi-component system (cobalt-nickel-manganese three-component system) cathode active material for a lithium secondary battery which has improved characteristic as compared with conventional lithium secondary batteries and a layered rock salt structure. A plate-like particle or a film for a lithium secondary battery cathode active material is represented by the following general formula:06-24-2010
20090197173COMPOSITE CARBONATE AND METHOD FOR PRODUCING THE SAME - The present invention provides a nickel atom-, manganese atom- and cobalt atom-containing composite carbonate that is high in specific surface area and large in tap density, and useful as a raw material for producing a lithium nickel manganese cobalt composite oxide to be used in a positive electrode active material for use in a lithium secondary battery, and provides a method for industrially advantageously producing the composite carbonate. The composite carbonate includes nickel atoms, manganese atoms and cobalt atoms, and has an average particle size of 20 μm or more and 40 μm or less, a BET specific surface area of 50 to 130 m08-06-2009
20100190058SURFACE PROTECTED LITHIUM-METAL-OXIDE ELECTRODES - A lithium-metal-oxide positive electrode having a layered or spinel structure for a non-aqueous lithium electrochemical cell and battery is disclosed comprising electrode particles that are protected at the surface from undesirable effects, such as electrolyte oxidation, oxygen loss or dissolution by one or more lithium-metal-polyanionic compounds, such as a lithium-metal-phosphate or a lithium-metal-silicate material that can act as a solid electrolyte at or above the operating potential of the lithium-metal-oxide electrode. The surface protection significantly enhances the surface stability, rate capability and cycling stability of the lithium-metal-oxide electrodes, particularly when charged to high potentials.07-29-2010
20100086854FLUORINE DOPED LITHIUM RICH METAL OXIDE POSITIVE ELECTRODE BATTERY MATERIALS WITH HIGH SPECIFIC CAPACITY AND CORRESPONDING BATTERIES - Lithium rich metal oxyfluorides are described with high specific capacity and, good cycling properties. The materials have particularly good high rate capabilities. The fluorine dopant can be introduced in a low temperature process to yield the materials with desirable cycling properties. In some embodiments, the positive electrode active materials have a composition represented approximately by the formula Li04-08-2010
20110020705CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME - Provided is a non-aqueous electrolyte-based, high-power lithium secondary battery having a long service life and superior safety at both room temperature and high temperature, even after repeated high-current charging and discharging. The battery comprises a cathode active material composed of a mixture of lithium/manganese spinel oxide and lithium/nickel/cobalt/manganese composite oxide wherein the cathode active material exhibits the life characteristics that the capacity at 300 cycles is more than 70% relative to the initial capacity, in the provision of satisfying the condition (i) regarding the particle size and the condition (ii) regarding the mixing ratio.01-27-2011
20100136430NCM POSITIVE ACTIVE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY INCLUDING THE SAME - An NCM positive active material composition and a secondary battery including the same are disclosed. The NCM positive active material composition has a good conductivity and increased capacity, and is prepared by utilizing a high density mixture. The NCM positive active material composition includes an NCM positive active material, a conductive agent, and a binder, and the conductive agent contains graphite.06-03-2010
20110070497METHOD OF PRODUCING POSITIVE ELECTRODE FOR LITHIUM ION BATTERY, POSITIVE ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY USING THE POSITIVE ELECTRODE - A positive electrode for a lithium ion battery having a positive electrode active material layer including a lithium transition metal oxide such as a lithium nickel oxide as a positive electrode active material is washed with a washing fluid containing: an aprotic solvent such as propylene carbonate; and at least one of a fluorine-containing lithium salt such as LiPF03-24-2011
20110305955POSITIVE 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 includes pores having an average diameter of about 10 nm to about 60 nm and a porosity of about 0.5% to about 20%. Also disclosed is a method of preparing the positive active material, and a rechargeable lithium battery including the positive active material.12-15-2011
20110305954POSITIVE ACTIVE MATERIAL PRECURSOR FOR SECONDARY LITHIUM BATTERY, POSITIVE ACTIVE MATERIAL USING SAME, AND SECONDARY LITHIUM BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL - Disclosed is a positive active material precursor for a secondary lithium battery, which is represented by the following Chemical Formula 1 and has an intensity ratio of I12-15-2011
20100196761GRANULAR POWDER OF TRANSITION METAL COMPOUND AS RAW MATERIAL FOR CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR ITS PRODUCTION - To provide a transition metal compound granule serving as a raw material for a cathode active material for a lithium secondary battery, which has high packing density, large volume capacity density and high safety and which is excellent in durability for charge and discharge cycles.08-05-2010
20120040247LAYERED COMPOSITE MATERIALS HAVING THE COMPOSITION: (1-x-y)LiNiO2(xLi2Mn03)(yLiCoO2), AND SURFACE COATINGS THEREFOR - A straightforward and scalable solid-state synthesis at 975° C. used to generate cathode materials in the system Li02-16-2012
20090098462Alkaline dry battery - In order to provide an alkaline dry battery which enables to improve the operational stability of digital equipment by suppressing the progress of polarization during heavy load pulse discharge while maintaining the excellent heavy load discharge characteristics, and has an excellent reliability in terms of the leakage resistance and the safety under short-circuit conditions, the alkaline dry battery includes a positive electrode including a nickel oxyhydroxide powder and a manganese dioxide powder as positive electrode active materials, and including graphite as a conductive material; a negative electrode including zinc or a zinc alloy as a negative electrode active material; a separator interposed between the positive electrode and the negative electrode; a negative electrode current collector inserted in the negative electrode; an aqueous alkaline solution included in the separator; a battery case housing the positive electrode, the negative electrode, the separator, the negative electrode current collector and the aqueous alkaline solution; a sealing member for sealing an opening of the battery case, wherein the positive electrode includes a calcium compound in an amount of 0.1 to 10 mol % relative to a total amount of the positive electrode active material, and the content of iron element in the calcium compound is 150 ppm or less.04-16-2009
20120301786LITHIUM ION SECONDARY BATTERY, ELECTRIC TOOL, ELECTRIC VEHICLE, AND POWER STORAGE SYSTEM - A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode contains a lithium composite oxide. The negative electrode contains a material including at least one of silicon Si and tin Sn as a constituent element. The lithium composite oxide includes lithium Li having a composition ratio a, a first element having a composition ratio b, and a second element having a composition ratio c as a constituent element. The first element including two kinds or more selected from among manganese Mn, nickel Ni, and cobalt Co, and including at least manganese. The second element including at least one kind selected from among aluminum Al, titanium Ti, magnesium Mg, and boron B. The composition ratios a to c satisfy the relationships of 1.1b+c.11-29-2012
20110065003CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material based on lithium nickel-manganese-cobalt oxide represented by Formula 1, wherein the lithium nickel-manganese-cobalt oxide has a nickel content of at least 40% among overall transition metals and is coated with a conductive polymer at a surface thereof. A lithium secondary battery having the disclosed cathode active material has advantages of not deteriorating electrical conductivity while enhancing high temperature stability, so as to efficiently provide high charge capacity.03-17-2011
20120003541POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME - A positive active material for lithium secondary battery containing a composite that includes a composite of lithium aluminum oxide and lithium nickel oxide and lithium secondary battery using the same.01-05-2012
20120015251METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL LAYER - The main object of the present invention is to provide a method for producing a cathode active material layer, which allows a high-purity lithium complex oxide by restraining impurities from being produced, allows a flat film, and allows orientation control. The present invention solves the above-mentioned problems by providing a method for producing a cathode active material layer, in which a cathode active material layer is formed on a substrate and contains LiX01-19-2012
20120015250POSITIVE ELCTRODE MATERIALS FOR LITHIUM ION BATTERIES AND PROCESS FOR PREPARING THE SAME - Provided are a positive electrode material for lithium ion batteries and a process for preparing the same. The positive electrode material for lithium ion batteries comprises a composite positive electrode material consists of LiCoO01-19-2012
20110165464Negative Electrode for Rechargeable Lithium Battery and Rechargeable Lithium Battery Including Same - A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative electrode includes a current collector and a negative active material layer disposed on the current collector, wherein the negative active material layer includes a negative active material including a silicon-based core and a carbon layer disposed on the surface of the silicon-based core, an inorganic salt including an alkaline metal cation selected from a Na cation, a K cation, or a combination of these; and an anion selected from a carbonate anion, a halogen anion, or a combination of these, and an aqueous binder.07-07-2011
20110165462Anode compositions for lithium secondary batteries - A lithium secondary battery comprising a cathode, an anode, and a separator-electrolyte assembly or electrolyte layer disposed between the cathode and the anode, wherein the anode comprises: (a) an integrated nano-structure of electrically conductive nanometer-scaled filaments that are interconnected to form a porous network of electron-conducting paths comprising interconnected pores, wherein the filaments have a transverse dimension less than 500 nm; and (b) a foil of lithium or lithium alloy as an anode active material. The battery exhibits an exceptionally high specific capacity, an excellent reversible capacity, and a long cycle life.07-07-2011
20110165463CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY CONTAINING THE SAME - Disclosed herein is a cathode active material based on lithium nickel oxide represented by Formula 1, wherein the lithium nickel oxide has a nickel content of at least 40% among overall transition metals and is coated with a compound not reacting with an electrolyte (“non-reactive material”), which is selected from a group consisting of oxides, nitrides, sulfides and a mixture or combination thereof not reacting with an electrolyte, as well as a carbon material, at a surface of the lithium nickel oxide.07-07-2011
20090023067POSITIVE ELECTRODE ACTIVE MATERIALS FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - A positive electrode active material for a lithium secondary battery, the material represented by the formulas: LiNi01-22-2009
20120064410POSITIVE ELECTRODE PLATE, METHOD OF MANUFACTURING THE SAME, AND LITHIUM BATTERY INCLUDING THE POSITIVE ELECTRODE PLATE - A positive electrode plate, a method of manufacturing the same, and a lithium battery including the positive electrode plate are disclosed. The positive electrode plate comprises particles of a nickel-based composite oxide represented by Formula 1, wherein the particles have an average particle diameter D03-15-2012
20120208087LITHIUM SECONDARY BATTERY - A lithium secondary battery according to the present invention includes: a positive electrode having a positive-electrode active material capable of occluding and releasing lithium ions; a negative electrode having a negative-electrode active material capable of occluding and releasing lithium ions; a separator interposed between the positive electrode and the negative electrode; and an electrolyte having lithium-ion conductivity. The positive-electrode active material contains a nickel-type lithium-containing complex oxide. The negative-electrode active material contains a graphite-type material having a reversible capacity of 350 mAh/g or more and an irreversible capacity of 30 mAh/g or less. A ratio Qc/Qa between an irreversible capacity Qc per unit area in a portion of the positive electrode that opposes the negative electrode and an irreversible capacity Qa per unit area in a portion of the negative electrode that opposes the positive electrode is equal to or greater than 0.50 but less than 1.13. As a result, the charge-discharge cycle characteristics can be improved while ensuring a high capacity.08-16-2012
20120070743POSITIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL - A positive active material and a method of preparing a positive active material, and a lithium battery including the positive active material. In one embodiment, the positive active material includes single particles each being represented by Formula 1:03-22-2012
20120121985POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME - A positive electrode active material provided by the present invention is formed of a lithium-nickel-containing metal phosphate compound represented by a general formula: LiNi05-17-2012
20100209776POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes a positive active material, a binder, and a conductive material, wherein a weight ratio of the binder and conductive material, and the positive active material, ranges from 3:97 to 5:95 wt %, and a weight ratio of the binder and the conductive material ranges from 1.5 to 3:1.08-19-2010
20110183209HIGH CAPACITY LITHIUM-ION ELECTROCHEMICAL CELLS - A lithium-ion electrochemical cell is provided that has high total energy, high energy density and good performance upon repeated charge-discharge cycles. The cell includes a composite positive electrode that comprises a metal oxide electrode material, a composite negative electrode that comprises a alloy anode active material having a first cycle irreversible capacity of 10 percent or higher and an electrolyte. The first cycle irreversible capacity of the composite positive electrode is within 40 percent of the first cycle irreversible capacity of the composite negative electrode.07-28-2011
20100068624NICKEL HYDROXIDE, METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material for a non-aqueous electrolyte secondary battery, including a lithium nickel composite oxide, is produced by baking a nickel hydroxide having a mean primary particle size of 1 to 5 μm and a DBP absorption amount of 10 to 30 mL/100 g and a lithium compound in an oxidizing atmosphere. This lithium nickel composite oxide is excellent in packing characteristics and power characteristics (particularly high-rate characteristics), and useful as a positive electrode active material of a non-aqueous electrolyte secondary battery.03-18-2010
20120135310CATHODE MATERIAL FOR A LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME - The present invention relates to a cathode active material for a lithium secondary battery, a method of preparing thereof and a lithium secondary battery comprising the same, wherein the cathode active material comprises a compound of formula (I):05-31-2012
20100273055LITHIUM-ION ELECTROCHEMICAL CELL - Lithium-ion electrochemical cells are provided that have high charge-discharge rates, excellent thermal stability and low irreversible capacity. The provided cells include a lithium mixed metal oxide cathode and a lithium titanate anode. The lithium mixed metal oxide cathode has cobalt as its major constituent.10-28-2010
20100173201LITHIUM SECONDARY BATTERY - An objective of the present invention is to provide a lithium secondary battery which can achieve a higher capacity and a longer life without reduction in a lower voltage in the battery. In the present invention, a compound represented by general formula (I) described below is used as a cathode active material, and a compound represented by general formula (II) described below is used as an anode active material;07-08-2010
20120219861CATHODE MATERIAL, CATHODE, AND LITHIUM ION SECONDARY BATTERY - It is an object to provide a cathode active material and a cathode which can attain a lithium ion secondary battery with high capacity and high security, and further to provide the lithium ion secondary battery with high capacity and high security.08-30-2012
20120251883ELECTROCHEMICAL DEVICE WITH HIGH CAPACITY AND METHOD FOR PREPARING THE SAME - Disclosed is a method for preparing an electrochemical device, comprising the steps of: charging an electrochemical device using an electrode active material having a gas generation plateau potential in a charging period to an extent exceeding the plateau potential; and degassing the electrochemical device. An electrochemical device, which comprises an electrode active material having a gas generation plateau potential in a charging period, and is charged to an extent exceeding the plateau potential and then degassed, is also disclosed.10-04-2012
20090092901TI-NI ALLOY-NI SULFIDE ELEMENT FOR COMBINED CURRENT COLLECTOR-ELECTRODE - The present invention relates to a superelastic alloy-Ni sulfide element for a combined current collector-electrode in which Ti—Ni based alloy is used as a current collector and Ni sulfide is used as electrode material, the Ni sulfide being formed on the Ti—Ni based alloy by forming a Ni thin film on a surface of the Ti—Ni based alloy and sulfurdizing the Ti—Ni based alloy comprising the Ni thin film. Thus, a superelastic characteristic of the element is realized as well as small-size integration of a battery is possible.04-09-2009
20100273057POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL AND NONAQUEOUS ELECTROLYTE BATTERY - A positive electrode active material includes a lithium complex oxide particle, and a coating layer formed on at least a part of the surface of the lithium complex oxide particle. The lithium complex oxide particle is a lithium complex oxide particle composed mainly of nickel. The coating layer contains an oxo acid and/or an oxo acid compound, an acidity of the surface of the lithium complex oxide particle composed mainly of nickel is increased by the coating layer. The acidity is determined based on a pH of a supernatant of water in a state where after 1.0 part by weight of the lithium complex oxide particle composed mainly of nickel and having a coating layer formed thereon is dispersed in 50 parts by weight of water. The lithium complex oxide particle sediments, and the pH is less than 8.0.10-28-2010
20100273056LITHIUM BATTERY AND METHOD FOR PRODUCING THE SAME - A lithium battery that contains a solid electrolyte but has a high capacity is provided. A lithium battery 10-28-2010
20120258366POSITIVE 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 is a secondary particle formed of an assembly of primary particles of a nickel-based compound. The positive active material has an average particle diameter ranging from 5.5 μm to 7.5 μm and a specific surface area ranging from 0.40 m10-11-2012
20120258364C2/M-Structured Cathode Material for Lithium-Ion Battery - Disclosed is a C2/m-structured cathode material for a lithium-ion battery. The cathode material includes a lithium transition metal oxide represented by a formula of:10-11-2012
20120231342Positive Electrode Active Material For Lithium-Ion Battery, Positive Electrode For Lithium-Ion Battery, And Lithium-Ion Battery - The present invention provides a positive electrode active material for lithium ion batteries having excellent rate performance.09-13-2012
20120231341POSITIVE ACTIVE MATERIAL, AND ELECTRODE AND LITHIUM BATTERY CONTAINING THE POSITIVE ACTIVE MATERIAL - Embodiments of the present invention are directed to a positive active material, an electrode including the positive active material, and a lithium battery including the electrode. Due to the inclusion of a phosphate compound having an olivine structure and a lithium nickel composite oxide in the positive active material, the positive active material has high electric conductivity and high electrode density. A lithium battery manufactured using the positive active material has high capacity and good high-rate characteristics.09-13-2012
20120328948NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a non-aqueous electrolyte. The positive electrode active material includes a lithium-nickel-manganese composite oxide having a hexagonal layered rock-salt structure that belongs to the space group R-312-27-2012
20110003204POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Provided is a positive electrode for a lithium secondary battery including a positive active material and a conductive agent comprising a plurality of plate-structured carbon particles.01-06-2011
20110039159CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY CONTAINING THEM - Provided is a non-aqueous electrolyte-based, high-power lithium secondary battery having a long service life and superior safety at both room temperature and high temperature, even after repeated high-current charging and discharging. The battery comprises a mixture of a lithium/manganese spinel oxide having a substitution of a manganese (Mn) site with a certain metal ion and a lithium/nickel/cobalt/manganese composite oxide, as a cathode active material.02-17-2011
20120270107NICKEL-COBALT-MANGANESE COMPLEX HYDROXIDE PARTICLES AND METHOD FOR PRODUCING SAME, POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An object of the present invention is to provide nickel cobalt manganese composite hydroxide particles having a small particle diameter and a uniform particle size distribution, and a method for producing the same.10-25-2012
20100203388CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES WITH HIGH SAFETY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERIES COMPRISING THE SAME - The present invention relates to a cathode active material for lithium secondary batteries with high safety, a method of preparing the same and lithium secondary batteries comprising the same. The cathode active material of the present invention comprises a lithium metal oxide secondary particle core portion formed by aggregation of lithium metal oxide primary particles; and a shell portion formed by coating the secondary particle core portion with an olivine-structured lithium iron phosphate oxide. The cathode active material of the present invention allows to manufacture lithium secondary batteries with improved safety, especially overcharge characteristics.08-12-2010
20100233542ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - The present invention provides an active material for a lithium secondary battery with a high discharge capacity, particularly for a lithium secondary battery that can increase the discharge capacity in a potential region of 4.3 V or lower, a method for producing the same, a lithium secondary battery having a high discharge capacity, and a method for producing the same. The active material for a lithium secondary battery includes a solid solution of a lithium transition metal composite oxide having an α-NaFeO09-16-2010
20120276453Coated Nickel Hydroxide Powder as Cathode Active Material for Alkaline Secondary Battery and Method for Producing the Same - A method for producing a coated nickel hydroxide powder suitable as a cathode active material for alkaline secondary battery includes the steps of: dispersing a nickel hydroxide powder in water to prepare a suspension, an aqueous alkali solution to the suspension with stirring to keep a pH of the suspension at 8 or higher as measured at 25° C., and supplying an aqueous cobalt salt solution to the suspension to coat a surface of each of particles of the nickel hydroxide powder with cobalt hydroxide crystallized out by neutralization.11-01-2012
20120276454NICKEL COMPLEX HYDROXIDE PARTICLES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed are: nickel complex hydroxide particles that have small and uniform particle diameters; and a method by which the nickel complex hydroxide particles can be produced. Specifically disclosed is a method for producing a nickel complex hydroxide by a crystallization reaction, which comprises: a nucleation step in which nucleation is carried out, while controlling an aqueous solution for nucleation containing an ammonium ion supplying material and a metal compound that contains nickel to have a pH of 12.0-13.4 at a liquid temperature of 25° C.; and a particle growth step in which nuclei are grown, while controlling an aqueous solution for particle growth containing the nuclei, which have been formed in the nucleation step, to have a pH of 10.5-12.0 at a liquid temperature of 25° C. In this connection, the pH in the particle growth step is controlled to be less than the pH in the nucleation step.11-01-2012
20090274959ENCLOSED NICKEL-ZINC PRIMARY BATTERY, ITS ANODE AND PRODUCTION METHODS FOR THEM - A high-capacity enclosed nickel-zinc primary battery excellent in characteristics such as capacity maintenance factor, energy density, and high-efficient discharge characteristics, an anode using it, and a production method for them. An enclosed nickel-zinc primary battery which uses as an anode an anode active material of nickel hydroxide compound, such as nickel oxyhydroxide, particles and uses zinc alloy gel as a cathode material, wherein a ratio of anode theoretical capacity to cathode theoretical capacity is 1.0-1.6, and a ratio of alkali electrolyte to anode theoretical capacity is 1.0-1.6 ml/Ah.11-05-2009
20130011740Lithium Secondary Battery - The positive-electrode material of the lithium secondary battery according to the present invention includes a first positive-electrode active material, and a second positive-electrode active material, the first positive-electrode active material denoted by a composition formula Li01-10-2013
20100129714LITHIUM SECONDARY BATTERY - It is an object of the present invention to provide a lithium secondary battery capable of suppressing the elution of Mn, the lithium secondary batteries being excellent in the cycle life and having a high energy density. A positive electrode material for the lithium secondary battery has a cubic spinel structure (space group Fd3m), and comprises a metal phosphate compound and a cubic metal oxide in a surface of a lithium manganese composite oxide represented by a composition formula LiMn05-27-2010
20130017448NONAQUEOUS ELECTROLYTE SECONDARY BATTERYAANM Suzuki; AkihiroAACI Kobe CityAACO JPAAGP Suzuki; Akihiro Kobe City JPAANM Niina; FumiharuAACI Kobe CityAACO JPAAGP Niina; Fumiharu Kobe City JPAANM Tode; ShingoAACI Kasai CityAACO JPAAGP Tode; Shingo Kasai City JPAANM Yoshida; ToshikazuAACI Kakogawa CityAACO JPAAGP Yoshida; Toshikazu Kakogawa City JPAANM Kida; YoshinoriAACI Kobe CityAACO JPAAGP Kida; Yoshinori Kobe City JP - In a nonaqueous electrolyte secondary battery including a positive electrode (01-17-2013
20130022874POSITIVE ELECTRODE FOR A LITHIUM BATTERY - A method for producing a lithium alkali transition metal oxide for use as a positive electrode material for lithium secondary batteries by a precipitation method. The positive electrode material is a lithium alkali transition metal composite oxide and is prepared by mixing a solid state mixed with alkali and transition metal carbonate and a lithium source. The mixture is thermally treated to obtain a small amount of alkali metal residual in the lithium transition metal composite oxide cathode material.01-24-2013
20080254366Alkaline Storage Battery - An alkaline storage battery 10-16-2008
20080248391CATHODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND ITS PRODUCTION METHOD - Provided are a cathode active material with high safety, with high discharge capacity even at high operating voltage, and with excellent cyclic charge and discharge properties, its production method and a non-aqueous electrolyte secondary battery containing the cathode active material.10-09-2008
20080233481POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide a positive electrode active material for a non-aqueous electrolyte secondary battery, which can achieve high capacity and high output simultaneously, and a non-aqueous electrolyte secondary battery using the same. A non-aqueous electrolyte secondary battery is obtained by using as a positive electrode, a positive electrode active material for a non-aqueous electrolyte secondary battery, which is expressed by the general formula: Li09-25-2008
20130177809LITHIUM ION SECONDARY BATTERY - A lithium-ion secondary battery comprising a positive electrode and a negative electrode is provided. The positive electrode comprises as a positive electrode active material a lithium transition metal composite oxide having a layered structure. The composite oxide contains as its metal components at least one species of Ni, Co and Mn as well as W and Ca. The composite oxide contains 0.26 mol % or more, but 5 mol % or less of W and Ca combined when all the metal elements contained in the oxide excluding lithium account for a total of 100 mol %, with the ratio (m07-11-2013
20130143124BRANCHED NANOSTRUCTURES FOR BATTERY ELECTRODES - The invention relates to electrochemical electrodes containing branched nanostructures having increased surface area and flexibility. These branched nanostructures allow for higher anode density, resulting in the creation of smaller, longer-lasting, more efficient batteries which require less area for the same charging capacity. Also disclosed are methods for creating said branched nanostructures and electrodes.06-06-2013
20130136992ALKALINE SECONDARY BATTERY AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE MATERIAL FOR ALKALINE SECONDARY BATTERY - An alkaline secondary battery includes a positive electrode containing a positive electrode material having nickel hydroxide, a cobalt-cerium compound containing cobalt and cerium, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium. Further, the positive electrode material is prepared by powder mixing nicked hydroxide particles, a cobalt-cerium compound, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium.05-30-2013
20130115515CATHODE ACTIVE MATERIAL FOR OVERCHARGE PROTECTION IN SECONDARY LITHIUM BATTERIES - Provided herein is an electrode active material comprising a lithium metal oxide and an overcharge protection additive having an operating voltage higher than the operating voltage of the lithium metal oxide.05-09-2013
20130101900LITHIUM SECONDARY BATTERY - Provided is a lithium secondary battery that comprises a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a nickel-containing lithium complex oxide having a layered structure. The oxide has a composition in which W and Zr are added, and contains no Nb.04-25-2013
20130130112SILICON BASED SHAPE MEMORY ALLOY NEGATIVE ACTIVE MATERIAL, NEGATIVE ACTIVE MATERIAL COMPOSITION INCLUDING SAME, RECHARGEABLE LITHIUM BATTERY INCLUDING SAME, AND METHOD OF PREPARING SAME - A silicon-based shape memory alloy negative active material includes a silicon-based material precipitated on a Ni05-23-2013
20130130113POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY EMPLOYING THE SAME - The invention relates to positive electrode for lithium secondary battery which comprises an active material and a conductive material, wherein the active material comprises a lithium-transition metal compound which has a function of being capable of insertion and desorption of lithium ion, the lithium-transition metal compound gives a surface-enhanced Raman spectrum which has a peak at 800-1,000 cm05-23-2013
20130149608POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING POSITIVE ACTIVE MATERIAL - A positive active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the positive active material. The positive active material includes a core part and a shell part that include a nickel-based composite oxide, and a content of nickel in the core part is larger than that in the shell part.06-13-2013
20120258365CATHODE ACTIVE MATERIAL PRECURSOR PARTICLE, CATHODE ACTIVE MATERIAL PARTICLE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - The invention provides lithium secondary battery cathode active material particle, which is formed as a secondary particle that is a mass of a plurality of single-crystal primary particles of a lithium-nickel-based complex oxide having a layered rock salt structure, wherein the primary particles have a mean particle size of 0.01 to 5 μm, and the secondary particle has an aspect ratio, which is a ratio of long axis diameter to short axis diameter, of 1.0 or more and less than 2 and a mean particle size of 1 to 100 μm, wherein the (10-11-2012
20110274977POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A method for producing a positive electrode active material for a non-aqueous electrolyte secondary battery includes the steps of: attaching an oxygen permeable ceramic or a precursor thereof to a surface of a nickel-containing oxide or hydroxide to form an intermediate; mixing the intermediate with a lithium compound; and baking the resulting mixture in air to synthesize a lithium nickel composite oxide. The step of attaching the oxygen permeable ceramic or precursor thereof includes, for example, precipitating the oxygen permeable ceramic or precursor thereof on the surface of the oxide or hydroxide in an alkaline aqueous solution.11-10-2011
20110274976LITHIUM 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 100 μm. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting Of LiCoO11-10-2011
20100316910Li-Ni-BASED COMPOSITE OXIDE PARTICLES FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, PROCESS FOR PRODUCING THE SAME, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to Li—Ni-based composite oxide particles comprising Mn, and Co and/or Al, wherein Co and Al are uniformly dispersed within the particles, and Mn is present with a gradient of its concentration in a radial direction of the respective particles such that a concentration of Mn on a surface of the respective particles is higher than that at a central portion thereof. The Li—Ni-based composite oxide particles can be produced by allowing an oxide and a hydroxide comprising Mn to mechanically adhere to Li—Ni-based oxide comprising Co and/or Al; and then heat-treating the obtained material at a temperature of not lower than 400° C. and not higher than 1,000° C. The Li—Ni-based composite oxide particles of the present invention are improved in thermal stability and alkalinity.12-16-2010
20120282525ACTIVE MATERIAL PARTICLES AND USE OF SAME - Active material particles are provided that exhibit performance suitable for increasing the output of a lithium secondary battery and little deterioration due to charge-discharge cycling. The active material particles provided by the present invention have a hollow structure having secondary particles including an aggregate of a plurality of primary particles of a lithium transition metal oxide, and a hollow portion formed inside the secondary particles, and through holes that penetrates to the hollow portion from the outside are formed in the secondary particles. BET specific surface area of the active material particles is 0.5 to 1.9 m11-08-2012
20120282524NONAQUEOUS SECONDARY BATTERY - The present invention provides a nonaqueous secondary battery with a high capacity, an excellent level of safety, and excellent charge-discharge cycle characteristics. The negative electrode contains, as negative electrode active materials, a graphite carbon material and a material containing Si as a constituent element, and the positive electrode includes, as a positive electrode active material, a lithium-containing composite oxide represented by the following general composition formula (1) and containing sulfur in a range of 0.01 mass % to 0.5 mass %:11-08-2012
20130183585POSITIVE ACTIVE MATERIAL PRECURSOR FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY USING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE PREPARED POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY - Provided are a positive active material precursor for a rechargeable lithium battery including a metal oxide represented by Chemical Formula 1, a positive active material for a rechargeable lithium battery that is obtained by using the positive active material precursor for a rechargeable lithium battery and includes a compound represented by a Chemical Formula 2, and a rechargeable lithium battery including the positive active material for a rechargeable lithium battery.07-18-2013
20130183586PROCESS FOR PRODUCING ELECTRODE MATERIALS - A process for producing electrode materials, which comprises treating a mixed oxide which comprises Li and at least one transition metal as cations with at least one boron compound which has at least one alkoxy group or at least one halogen atom per molecule.07-18-2013
20110287320Nickel Positive Electrode for Fiber Battery - Disclosed is a nickel positive electrode for a fiber battery having a long life duration, and also being enabling a high output and high capacity to be attained. For this purpose, the nickel positive electrode for a fiber battery is obtained by coating a carbon fiber with nickel, then causing a cathodic polarization in a nickel nitrate bath using the nickel-coated carbon fiber as a cathode, and then immersing the precipitate, which was deposited on the surface of the carbon fiber by the cathodic polarization, in an aqueous caustic alkali solution.11-24-2011
20110287319MIXED OXIDE CONTAINING A LITHIUM MANGANESE SPINEL AND PROCESS FOR ITS PREPARATION - A mixed oxide containing 11-24-2011
20130189581POSITIVE-ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a cathode active material for a nonaqueous electrolyte secondary battery with a high capacity, high stability and excellent output characteristics and a method for producing the same, and a nonaqueous electrolyte secondary battery using the cathode active material.07-25-2013
20120288766NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE SAME - Provided are a negative active material, a method of preparing the same, and a lithium battery including the negative active material. The negative active material includes a carbonaceous core that has a sulfur content of about 10 ppm to 900 ppm; and an amorphous carbon layer continuously formed on a surface of the carbonaceous core, wherein the carbonaceous core has a crystalloid plate structure, and a crystallite size measured from a full width at half maximum of the peak with respect to the surface (002) of about 10 nm to about 45 nm in an X-ray diffraction spectrum of the carbonaceous core. The lithium battery including a negative electrode including the negative active material has improved capacity characteristics and ring lifetime characteristics.11-15-2012
20120009476NICKEL-BASED POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY USING THE NICKEL-BASED POSITIVE ELECTRODE ACTIVE MATERIAL - A nickel (Ni)-based positive electrode active material, a method of preparing the same, and a lithium battery using the Ni-based positive electrode active material.01-12-2012
20130202966METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR AND POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY HAVING CONCENTRATION-GRADIENT LAYER USING BATCH REACTOR, AND POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR AND POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY PREPARED BY THE METHOD - The present invention relates to a method for preparing a positive electrode active material precursor and a positive electrode material for a lithium secondary battery having a concentration-gradient layer using a batch reactor, and to a positive electrode active material precursor and a positive electrode material for a lithium secondary battery prepared by the method. The method for preparing a positive electrode active material precursor and a positive electrode active material for a lithium secondary battery having a concentration-gradient layer using a batch reactor involves supplying a predetermined amount of a chelating agent into the batch reactor, and simultaneously supplying transition metals while continuously adjusting the concentration of the transition metals such that the concentration-gradient layer can be formed from a core to a shell of the positive electrode active material in a more economically advantageous and stable manner, and at the same time a positive electrode active material having an elongated lifespan and improved thermal stability can be provided.08-08-2013
20130202965RECHARGEABLE BATTERY CELL WITH IMPROVED HIGH TEMPERATURE PERFORMANCE - An alkaline, rechargeable electrochemical cell includes a pasted electrode structure in which a composition comprising a paste matrix component includes cobalt in an amount greater than 6 weight percent ranging up to 14 weight percent. The matrix may also include a rare earth such as yttrium. The composition further includes particles of nickel hydroxide dispersed in the matrix, and these particles include cobalt levels ranging from greater than 8 atomic percent up to 15 atomic percent. Cells incorporating these materials have good charging efficiency at elevated temperatures.08-08-2013
20130209885Alumina Dry-Coated Cathode Material Precursors - A particulate precursor compound for manufacturing an aluminum doped lithium transition metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries includes a transition metal (M)-hydroxide or (M)-oxy-hydroxide core and a non-amorphous aluminum oxide coating layer covering the core. By providing an aluminum thy-coating process where the particulate precursor core compound is mixed with alumina powder in one or more procedures, higher doping levels of aluminum compared to the known prior art may be achieved. The crystal structure of the alumina is maintained during the coating procedures and the core of each mixed transition metal precursor particle is surrounded by a coating layer containing crystalline alumina nano particles. The aluminum concentration in the particulate precursor decreases as the size of the core increases.08-15-2013

Patent applications in class Nickel component is active material