| Entries |
| Document | Title | Date |
|---|
| 20100151324 | METHOD OF FABRICATING FIBRES COMPOSED OF SILICON OR A SILICON-BASED MATERIAL AND THEIR USE IN LITHIUM RECHARGEABLE BATTERIES - A method of fabricating fibres of silicon or silicon-based material comprises the steps of etching pillars on a substrate and detaching them. A battery anode can then be created by using the fibres as the active material in a composite anode electrode. | 06-17-2010 |
| 20100119942 | COMPOSITE COMPOSITIONS, NEGATIVE ELECTRODES WITH COMPOSITE COMPOSITIONS AND CORRESPONDING BATTERIES - Compositions are described that can provide high energy density active materials for use in negative electrodes of lithium ion batteries. These materials generally comprise silicon and/or tin, and may further comprise carbon and/or zinc as well as other elements in appropriate embodiments. The active materials can have moderate volume changes upon cycling in a lithium ion battery. | 05-13-2010 |
| 20080268339 | ACTIVE MATERIAL, ELECTRODE, BATTERY, AND METHOD OF MANUFACTURING ACTIVE MATERIAL - An active material comprises a core particle containing LiCo | 10-30-2008 |
| 20130084500 | POSITIVE ELECTRODE MATERIAL - A positive-electrode material includes lithium vanadium phosphate particles having an average primary particle diameter from 0.3 μm to 2.6 μm and crystallite sizes from 24 nm to 33 nm. The lithium vanadium phosphate particles are coated with a conductive carbon of a range of 0.5 mass % to 2.4 mass % with respect to a total lithium vanadium phosphate particles. | 04-04-2013 |
| 20130034776 | LITHIUM IRON PHOSPHATE CONTAINING SULFUR COMPOUND BASED UPON SULFIDE BOND AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed is lithium iron phosphate having an olivine crystal structure, wherein the lithium iron phosphate has a composition represented by the following Formula 1, a sulfur compound with a sulfide bond is contained, as an impurity, in the lithium iron phosphate particles, and carbon (C) is coated on particle surfaces of the lithium iron phosphate: | 02-07-2013 |
| 20130040200 | LITHIUM SECONDARY BATTERY AND ANODE THEREFOR - The present invention relates to an anode of a lithium secondary battery containing a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a layer made of Ni | 02-14-2013 |
| 20100143800 | NEGATIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARING METHOD THEREOF AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - The present invention relates to a negative active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the same. The negative active material for a lithium secondary battery includes a compound and a carbon composite represented by the following Chemical Formula 1. | 06-10-2010 |
| 20130029226 | LITHIUM IRON PHOSPHATE OF OLIVINE CRYSTAL STRUCTURE AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed is lithium iron phosphate having an olivine crystal structure wherein carbon (C) is coated on particle surfaces of the lithium iron phosphate, wherein, when a powder of the lithium iron phosphate is dispersed in water, water is removed from the resulting dispersion and the resulting lithium iron phosphate residue is quantitatively analyzed, a ratio of the carbon-released lithium iron phosphate with respect to the total weight of the carbon-coated lithium iron phosphate is 0.005% by weight or less. Advantageously, the olivine-type lithium iron phosphate is not readily separated through uniform thin film coating on the surface of the lithium iron phosphate and exhibits superior conductivity and density, since carbon is coated on particle surfaces of lithium iron phosphate in a state in which the amount of carbon released in water is considerably small. | 01-31-2013 |
| 20130029224 | LITHIUM ELECTROCHEMICAL GENERATOR COMPRISING TWO TYPES OF DISTINCT ELECTROCHEMICAL CELLS - An electrochemical generator comprising a first type of electrochemical cell, a so-called <> cell and a second type of electrochemical cell a so-called <> cell is provided. | 01-31-2013 |
| 20130029225 | ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC DEVICE - A secondary battery includes: a cathode including an active material; an anode; and an electrolytic solution. The active material has a composition represented by Formula (1) described below. A median diameter (D90) of the active material is from about 10.5 micrometers to about 60 micrometers both inclusive, the median diameter (D90) being measured by a laser diffraction method. A half bandwidth (2θ) of a diffraction peak corresponding to a (020) crystal plane of the active material is from about 0.15 degrees to about 0.24 degrees both inclusive, the half bandwidth (2θ) being measured by an X-ray diffraction method. | 01-31-2013 |
| 20090123840 | Non-Aqueous Electrolyte Secondary Battery - A non-aqueous electrolyte secondary battery includes a negative electrode, a positive electrode, and a non-aqueous electrolyte interposed therebetween. On at least one side of a current collector of the negative electrode, is formed a negative-electrode mixture layer containing an active material capable of storing and emitting at least lithium ions. The negative-electrode mixture layer has a plurality of mixture-layer expansion-absorbing grooves formed parallel to each other in such a manner as to expose the current collector. The mixture-layer expansion-absorbing grooves are formed in the position facing the positive-electrode mixture layer. | 05-14-2009 |
| 20130052535 | LITHIUM ION SECONDARY BATTERY ACTIVE MATERIAL, LITHIUM ION SECONDARY BATTERY ELECTRODE, LITHIUM ION SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRIC POWER TOOL, ELECTRIC VEHICLE, and POWER STORAGE SYSTEM - A lithium ion secondary battery capable of improving the lithium ion input-output characteristics. An active material capable of storing and releasing lithium ions is a Li complex oxide or a Li complex oxoacid salt. A plurality of primary particles have a particle size distribution with 1 nm| 02-28-2013 | |
| 20090325072 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery according to embodiments of the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a first layered lithium compound having an open circuit potential (based on lithium) of 3 V or greater, and a second layered lithium compound having an open circuit potential of less than 3 V. The second layered lithium compound is included in an amount of from about 0.99 to about 30 wt % based on a total amount of the first layered lithium compound and the second layered lithium compound. | 12-31-2009 |
| 20120225354 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING SAME AND LITHIUM SECONDARY BATTERY INCLUDING SAME - Disclosed are a positive active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the same. In particular, the positive active material has a carbon sheet having a structure including 1 to 200 polycyclic nano sheets comprising a plurality of hexagonal rings each having six carbon atoms condensed and substantially aligned in a plane containing the hexagonal rings, the polycyclic nano sheets layered in a vertical direction to the plane containing the hexagonal rings; and an olivine-based compound particle disposed on the surface of the carbon sheet. | 09-06-2012 |
| 20130101899 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - There is provided a nonaqueous electrolyte secondary battery having high capacity in which the reduction in the capacity of the battery due to the irreversible capacity in the first charge and discharge is suppressed using a high capacity positive electrode. The nonaqueous electrolyte secondary battery according to the exemplary embodiment includes a positive electrode and a negative electrode including at least one negative electrode active material selected from the group consisting of Si, a Si oxide and carbon, wherein the positive electrode includes a positive electrode active material including an oxide capable of absorbing and releasing lithium and a transition metal oxide, the transition metal oxide being represented by Li | 04-25-2013 |
| 20090047578 | POSITIVE ELECTRODE FOR ALKALINE BATTERY AND ALKALINE BATTERY USING THE SAME - A positive electrode for an alkaline battery of the present invention includes a spinel-type manganese oxide as a positive electrode active material, wherein the spinel-type manganese oxide has a potential of 0.26 to 0.34 V with respect to a Hg/HgO reference electrode, and the content of the spinel-type manganese oxide in the entire positive electrode active material is not less than 30 mass %. Further, an alkaline battery of the present invention includes the above-described positive electrode for an alkaline battery of the invention, a negative electrode and an electrolyte. | 02-19-2009 |
| 20090011333 | ANODE MATERIAL, ANODE AND BATTERY, AND METHODS OF MANUFACTURING THEM - A battery capable of improving the cycle characteristics while securing the input and output characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer on an anode current collector. The anode active material layer contains an anode material having a plurality of covering particles on a surface of an anode active material capable of intercalating and deintercalating an electrode reactant. The plurality of covering particles contain at least one of an alkali metal salt and an alkali earth metal salt. | 01-08-2009 |
| 20130122370 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CONTAINING PHOSPHATE FLUORIDE AND PREPARATION METHOD THEREOF - Provided is a cathode active material for lithium secondary battery containing the compound of Formula 1 doped or coated with phosphate fluoride, prepared by adding phosphate fluoride to the precursor compound and subjecting to sintering and heat-treatment process, which has improved lifecycle and stability so that it can be used to improve efficiency of lithium secondary battery: | 05-16-2013 |
| 20130122371 | LITHIUM SECONDARY BATTERY - To provide a lithium secondary battery excellent in the life characteristic and the power density. A lithium secondary battery, comprising: a positive electrode capable of intercalating and deintercalating lithium; and an negative electrode capable of intercalating and deintercalating lithium, wherein the positive electrode contains a manganese-containing positive electrode active material of a spinel structure and an oxide that coats the surface of this positive electrode active material, wherein the oxide contains a metallic element, wherein the metallic element forms a solid solution with the positive electrode active material, and wherein the atomic concentration of the metallic element is approximately 0 at depths of from 50 to 100 nm from an external surface of the negative electrode. | 05-16-2013 |
| 20090068559 | SUBSTANCE AND BATTERY INCLUDING THE SAME - A substance includes an oxide including at least one element selected from the group including cobalt Co, nickel Ni, manganese Mn, iron Fe, and copper Cu; and silicon Si chemically bonded to the surface of the oxide. Also, a battery includes a cathode, an anode, and an electrolyte, wherein the cathode includes an oxide including at least one selected from the group including cobalt Co, nickel Ni, manganese Mn, iron Fe, and copper Cu; and a substance including silicon Si chemically bonded to the surface of the oxide. | 03-12-2009 |
| 20110281165 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode that contains a lithium composite oxide as an active material. The cut-off voltage of charge is set to 4.25 to 4.5 V. In a region where the positive electrode and the negative electrode face each other, the Wp/Wn ratio R is in the range from 1.3 to 19 where Wp is the weight of the active material contained in the positive electrode per unit area and Wn is the weight of the active material contained in the negative electrode per unit area. This battery is excellent in safety, cycle characteristics, and storage characteristics even when the cut-off voltage of charge in a normal operating condition is set to 4.25 V or more. | 11-17-2011 |
| 20110274974 | THIN FILM SOLID STATE LITHIUM ION SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME - In one embodiment, a thin film solid state lithium ion secondary battery is able to be charged and discharged in the air and manufactured stably at a favorable yield. The thin film solid state lithium ion secondary battery has an electric insulating substrate formed from an organic resin, an inorganic insulating film provided on the substrate face, a cathode-side current collector film, a cathode active material film, a solid electrolyte film, an anode potential formation layer, and an anode-side current collector film. The cathode-side current collector film and/or the anode-side current collector film is formed on the inorganic insulating film face. The anode potential formation layer is a layer formed from the same material as that of the cathode active material film or a material different from that of the cathode active material film and is a layer provided for forming anode potential at the time of discharge. | 11-10-2011 |
| 20130022872 | CATHODE ACTIVE MATERIAL COMPRISING LITHIUM MANGANESE OXIDE CAPABLE OF PROVIDING EXCELLENT CHARGE-DISCHARGE CHARACTERISTICS AT 3V REGION AS WELL AS 4V REGION - Disclosed herein is a cathode active material including a lithium manganese oxide, in which the lithium manganese oxide has a spinel structure with a predetermined constitutional composition represented by Formula 1 described in the detailed description, wherein a conductive material is applied to the surface of lithium manganese oxide particles, so as to exhibit charge-discharge properties in the range of 2.5 to 3.5V as well as in the 4V region. | 01-24-2013 |
| 20120021289 | LITHIUM SECONDARY BATTERY - A lithium secondary battery ( | 01-26-2012 |
| 20090226809 | LITHIUM-SULFUR BATTERY AND CATHODE THEREFORE - An improved cathode suitable for lithium-sulfur batteries, a battery including the cathode, and a battery including a separator containing inorganic fillers are disclosed. The cathode includes sulfur and a metal oxide and optionally includes an additional polymeric material. The metal oxide reduces dissolution of sulfur at the cathode and reduces sulfur-containing deposits on the battery anode, thereby providing a battery with relatively high energy density and good partial discharge performance. The separator also reduces unwanted diffusion of sulfur species. | 09-10-2009 |
| 20100119943 | Positive active material composition for rechargeable battery, electrode including the same, and rechargeable battery including the same - A positive active material composition for a rechargeable battery, a positive electrode including the same, and a rechargeable battery including the same, the positive active material composition including a positive active material and a surface-modified metal oxide. | 05-13-2010 |
| 20100266898 | ELECTRODE FOR ELECTROCHEMICAL DEVICE - A problem to be solved by the invention is to provide an electrode for an electrochemical device which has a high capacity, suppresses the separation of an active material due to charge/discharge, and exhibits good cycle characteristics. To solve this problem, in the invention, an electrode | 10-21-2010 |
| 20120034525 | Positive Electrode Active Material For Lithium Ion Battery - Disclosed is a positive electrode active material that provides an improved capacity density. Specifically disclosed is a positive electrode active material for a lithium ion battery with a layered structure represented by Li | 02-09-2012 |
| 20120141875 | POSITIVE ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY - Provided is a secondary battery capable of improving charge-discharge characteristics. A positive electrode active material layer of a positive electrode has a positive electrode active material and a positive electrode conductive agent. The positive electrode active material is a high-voltage operating positive electrode material whose operating voltage is equal to or more than 4.5 V on a lithium metal basis. The positive electrode conductive agent contains an amorphous carbon material and a crystalline carbon material, and an interplanar spacing for lattice plane (002), a specific surface area, and a content in the positive electrode active material layer, thereof are so normalized as to be in predetermined ranges, respectively. | 06-07-2012 |
| 20090280410 | MULTILAYER MATERIAL BASED ON ACTIVE LITHIUM, METHOD OF PREPARATION AND APPLICATIONS IN ELECTROCHEMICAL GENERATORS - A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulomb efficiency. | 11-12-2009 |
| 20080280203 | Non-aqueous electrolyte secondary battery - A non-aqueous electrolyte secondary battery has a positive electrode ( | 11-13-2008 |
| 20090286158 | LITHIUM-ION BATTERY - A lithium-ion battery includes a positive electrode that includes a positive current collector, a first active material, and a second active material. The lithium-ion battery also includes a negative electrode comprising a negative current collector, a third active material, and a quantity of lithium in electrical contact with the negative current collector. The first active material, second active material, and third active materials are configured to allow doping and undoping of lithium ions, and the second active material exhibits charging and discharging capacity below a corrosion potential of the negative current collector and above a decomposition potential of the first active material. | 11-19-2009 |
| 20090042101 | High-Power Battery - A method of forming battery electrodes with high specific surface and thin layers of active material is disclosed. The method enables low series resistance and high battery power. | 02-12-2009 |
| 20080241688 | Negative electrode for rechargeable lithium battery and rechargeable lithium battery including the same - A negative electrode for a rechargeable lithium battery includes a current collector and a negative active mass disposed on the current collector. The negative active mass includes a negative active material including a lithium vanadium composite oxide and a crystalline structure aid for inhibiting deterioration of a crystalline structure. The negative active material can inhibit an irreversible crystalline structure change during charge and discharge, and does not incur decomposition of an electrolyte resulting in improvement of a cycle-life of a rechargeable lithium battery. | 10-02-2008 |
| 20080241689 | NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE - A nonaqueous electrolyte battery includes a negative electrode and a positive electrode. The negative electrode includes a negative electrode current collector and a negative electrode active material having a lithium ion absorption potential of 0.4 V (vs. Li/Li+) or more. The negative electrode current collector is made of aluminum or an aluminum alloy. The positive electrode includes a positive electrode current collector and a positive electrode active material. The positive electrode current collector has a total area and specific capacitance larger than those of the negative electrode current collector, and is made of aluminum or an aluminum alloy. | 10-02-2008 |
| 20080233479 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials for rechargeable lithium batteries are provided. One negative active material includes at least one Si active particle and a metal matrix surrounding the Si active particle. The metal matrix does not react with the Si active particle. The negative active material has a martensite phase when X-ray diffraction intensity is measured using a CuKα ray. The negative active material has improved efficiency and cycle-life. | 09-25-2008 |
| 20110206987 | NEGATIVE ELECTRODE, LITHIUM BATTERY EMPLOYING THE SAME, AND METHOD OF PREPARING THE NEGATIVE ELECTRODE - A negative electrode, a lithium battery employing the negative electrode, and a method of preparing the negative electrode. The negative electrode includes a current collector, and a negative electrode active material layer disposed on the current collector. The negative electrode active material layer includes: composite negative electrode active material particles comprising tin (Sn), and conductive metal particles. The conductive metal particles form an intermetallic compound with the Sn, and an average particle size of the conductive metal particles is at least 10 μm. | 08-25-2011 |
| 20110027651 | OLIVINE-TYPE CATHODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM BATTERY, OLIVINE-TYPE CATHODE ACTIVE MATERIAL FOR LITHIUM BATTERY, METHOD FOR PREPARING THE SAME AND LITHIUM BATTERY WITH THE SAME - The present invention provides an olivine-type positive active material precursor for a lithium battery that includes MXO | 02-03-2011 |
| 20110206988 | LITHIUM ION BATTERY - An object of the present invention is to provide a lithium ion battery which is excellent in properties at large current and can be applied to applications requiring high output power even when the mixture layers are made thick. The present invention provides a lithium ion battery including a positive electrode including a positive electrode mixture layer formed on a current collector, a negative electrode including a negative electrode mixture layer formed on a current collector and an electrolyte, the positive electrode and the negative electrode being disposed through the intermediary of a separator, wherein the positive electrode includes as a positive electrode active material a lithium composite oxide represented by LiNi | 08-25-2011 |
| 20120141873 | POSITIVE ACTIVE MATERIAL MANUFACTURING METHOD THEREOF, AND ELECTRODE AND LITHIUM BATTERY CONTAINING THE SAME - In one aspect, a positive active material is provided that may have increased thermal stability and resistance to capability deterioration due to repeated charging and discharging, a method of manufacturing the same, and a lithium battery that includes the positive active material. | 06-07-2012 |
| 20090004566 | Negative Electrode for Non-Aqueous Electrolyte Secondary Batteries, and Non-Aqueous Electrolyte Secondary Battery Having the Same - A negative electrode for non-aqueous electrolyte secondary batteries has a mixture layer disposed on a current collector. The mixture layer includes a composite negative electrode active material, a first binder containing an acryl-group-containing polymer, and a second binder containing adhesive rubber particles. The composite negative electrode active material contains carbon nanofibers, a catalyst element, and silicon-containing particles capable of charging and discharging at least lithium ions. The first binder binds the silicon-containing particles to the current collector, and the second binder binds the carbon nanofibers together. | 01-01-2009 |
| 20110223481 | PROCESS FOR PRODUCING METAL SULFIDE - The present invention provides a production process of a metal sulfide, which includes placing a metal component and sulfur in a conductive container, and applying a pulsed direct current to the container in a non-oxidizing atmosphere to cause the metal component to react with sulfur, and also provides a metal sulfide obtained by the process and represented by a composition formula: MS | 09-15-2011 |
| 20110143203 | Energy Storage Device - An energy storage device comprising an anode, electrolyte, and cathode is provided. The cathode comprises a plurality of granules comprising a support material, an active electrode metal, and a salt material, such that the cathode has a granule packing density equal to or greater than about 2 g/cc. A cathode comprising greater than about 10 volume % total metallic content in a charged state of the cathode is also provided. | 06-16-2011 |
| 20080233478 | ANODE, METHOD OF MANUFACTURING IT, BATTERY, AND METHOD OF MANUFACTURING IT - A battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The node has an anode current collector and an anode active material layer provided thereon, and the anode active material layer contains a plurality of anode active material particles having silicon, and a metal material having a metal element not being alloyed with an electrode reactant in a gap between the anode active material particles. | 09-25-2008 |
| 20110229763 | CATHODE MATERIAL FOR A BATTERY WITH IMPROVED CYCLE PERFORMANCE AT A HIGH CURRENT DENSITY - A material for use in the cathode terminal of a battery that is made from a lithiated manganese oxide which is doped with ruthenium and optionally with a transition material and a method for the synthesis of the same. The material exhibits improved conductivity and cyclic performance at high current density (current density of 1470 mA/g and higher) and can be used in hybrid vehicles and other electronic devices due to its good cyclic performance at high current density and its relatively large capacity. | 09-22-2011 |
| 20090220859 | CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM INCLUDING THE SAME - Provided is a cathode active material including a lithium metal oxide of Formula 1 below: | 09-03-2009 |
| 20090220861 | Method for producing alkaline battery, and alkaline battery - The invention provides an alkaline battery that does not allow generation of hydrogen gas. An alkaline battery comprises a positive electrode mixture, a negative electrode mixture containing zinc alloy powder, a separator that separates the positive electrode mixture from the negative electrode mixture, an alkaline electrolyte, a positive electrode can that accommodates the positive electrode mixture, and a negative electrode can that accommodates the negative electrode mixture and has a tin coating layer formed after chemical polishing with a mixed acid and surface treatment with a conductive polymer. The opening edge of the negative electrode can has a folded portion formed along the outer peripheral surface thereof to have a U-shaped cross section, and a gasket has a protruding portion formed on the central side and having a J-shaped cross section. The space formed between the inner peripheral surface of the folded portion of the negative electrode can and the central-side protruding portion of the gasket is no wider than the thickness of the negative electrode can, and the length of the protruding portion is at least ½ the length of the folded portion. | 09-03-2009 |
| 20090220858 | Composite Compound With Mixed Crystalline Structure - Described is a composite lithium compound having a mixed crystalline structure. Such compound was formed by heating a lithium compound and a metal compound together. The resulting mixed metal crystal exhibits superior electrical property and is a better cathode material for lithium secondary batteries. | 09-03-2009 |
| 20090117463 | LITHIUM ION SECONDARY BATTERY - In a lithium ion secondary battery including a positive electrode, a negative electrode containing an alloy-based negative electrode active material, a separator, a positive electrode lead, a negative electrode lead, a gasket, and an outer case, the positive electrode is allowed to contain an oxygen deficient non-stoichiometric oxide, or an oxygen removing layer containing an oxygen deficient non-stoichiometric oxide is provided between the positive electrode and the separator. In a lithium ion secondary battery containing the alloy-based negative electrode active material, a reaction between oxygen generated in the positive electrode and the alloy-based negative electrode active material, and heat generation accompanying the reaction are prevented. | 05-07-2009 |
| 20110229762 | Method Of Using Cyclic Pressure To Increase The Pressed Density Of Electrodes For Use In Electrochemical Cells - The traditional method of building a CF | 09-22-2011 |
| 20100216023 | Process for producing carbon nanostructure on a flexible substrate, and energy storage devices comprising flexible carbon nanostructure electrodes - An energy storage device structure comprises a first electrode layer, an electrolyte layer and a second electrode layer. At least one of the electrode layers comprise a metallic foil base layer and a layer of carbon nanotubes grown on the base layer, the carbon nanotube layer being arranged to face the electrolyte layer. The structure may be made in such a way that its width and length are much larger than its thickness, so that it can rolled up or folded and then hermetically sealed to form an energy storage unit. The layer of carbon nanotubes is grown on the metallic foil base layer by a chemical vapor deposition process at a temperature no higher than 550° C. The carbon nanotubes in the carbon nanotube layer are at least partially aligned in a direction that is perpendicular to the surface of the metallic base layer. | 08-26-2010 |
| 20080213664 | THIN FILM BATTERY AND MANUFACTURING METHOD - In a method of fabricating a battery, a substrate is annealed to reduce surface contaminants or even water of crystallization from the substrate. A series of battery component films are deposited on a substrate, including an adhesion film, electrode films, and an electrolyte film. An adhesion film is deposited on the substrate and regions of the adhesion film are exposed to oxygen. An overlying stack of cathode films is deposited in successive deposition and annealing steps. | 09-04-2008 |
| 20100239907 | Power Storage Device and Manufacturing Method Thereof - A power storage device having a small thickness is manufactured. A manufacturing method of the power storage device includes: forming a first layer and a second layer over a first substrate; forming a first insulating layer, a positive electrode and a negative electrode over the second layer; forming a solid electrolyte layer over the first insulating layer, the positive electrode, and the negative electrode; forming a sealing layer to cover the solid electrolyte layer; forming a planarization film and a support over the sealing layer; separating the first layer and the second layer from each other so that the second layer, the positive electrode, the negative electrode, the solid electrolyte layer, the sealing layer, the planarization film, and the support are separated from the first substrate; attaching the separated structure to a second substrate which is flexible; and separating the support from the planarization film. | 09-23-2010 |
| 20100239908 | LITHIUM-ION BATTERY - A lithium-ion battery includes a positive electrode comprising a current collector and a first active material and a negative electrode comprising a current collector, a second active material, and a third active material. The second active material comprises a lithium titanate material and the third active material is selected from the group consisting of Li | 09-23-2010 |
| 20120141874 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY - Disclosed is a positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive active material includes a carbon material having a structure with “n” polycyclic nano sheets, wherein “n” is an integer of 1 to 30 with hexagonal rings having six carbon atoms condensed and substantially aligned in a plane, the polycyclic nano sheets are laminated in a vertical direction to the plane; and a lithium-containing olivine-based compound attached to the surface of the carbon material is formed with a carbon-coating layer on its surface. | 06-07-2012 |
| 20090176158 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A negative electrode for a lithium secondary battery of the present invention includes a current collector and a negative electrode active material layer carried on the current collector. The negative electrode active material layer includes a plurality of columnar particles. The current collector has a surface including a depression and a plurality of projected regions defined by the depression. The projected regions carry the columnar particles. Further, the present invention relates to a lithium secondary battery using the foregoing negative electrode. According to the present invention, it is possible to provide a high-capacity negative electrode excellent mainly in cycle characteristics for a lithium secondary battery, and a lithium secondary battery including the same. | 07-09-2009 |
| 20090186275 | SYNTHESIS OF NANOPARTICLES OF LITHIUM METAL PHOSPHATE POSITIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Novel process for the preparation of finely divided, nano-structured, olivine lithium metal phosphates (LiMPO.sub.4) (where metal M is iron, cobalt, manganese, nickel, vanadium, copper, titanium and mix of them) materials have been developed. This so called Polyol” method consists of heating of suited precursor materials in a multivalent, high-boiling point multivalent alcohol like glycols with the general formula HO—(—C | 07-23-2009 |
| 20110129732 | COMPRESSED POWDER 3D BATTERY ELECTRODE MANUFACTURING - Embodiments of the invention contemplate forming an electrochemical device and device components, such as a battery cell or supercapacitor, using thin-film or layer deposition processes and other related methods for forming the same. In one embodiment, a battery bi-layer cell is provided. The battery bi-layer cell comprises an anode structure comprising a conductive collector substrate, a plurality of pockets formed on the conductive collector substrate by conductive microstructures comprising a plurality of columnar projections, and an anodically active powder deposited in and over the plurality of pockets, an insulative separator layer formed over the plurality of pockets, and a cathode structure joined over the insulative separator. | 06-02-2011 |
| 20100323244 | BATTERY ELECTRODES AND METHODS OF MANUFACTURE - This disclosure relates to compositions and methods of manufacture of electrodes for batteries, including rechargeable lithium batteries, wherein at least one electrode comprises an electroactive material and a malleable metal. The electrode may be substantially free of other conductive additives and organic binders. Manufacture of the electrode may be performed without solvent or sintering. | 12-23-2010 |
| 20110111297 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery including: an electrode group which includes a positive electrode containing lithium-containing composite oxide, a negative electrode capable of inserting and extracting lithium ions, and a porous insulator interposed between the positive electrode and the negative electrode, and is sealed in a battery case together with a nonaqueous electrolyte, wherein the porous insulator has a Gurley number of 100 sec/100 ml to 1000 sec/100 ml, both inclusive, and an average pore diameter of 0.05 μm to 0.15 μm, both inclusive. | 05-12-2011 |
| 20110086271 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed are a negative active material for a rechargeable lithium battery that includes a core including silicon oxide represented by the following Chemical Formula 1; and a surface-treatment layer surrounding the core and including metal oxide represented by the following Chemical Formula 2, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The metal of the metal oxide is included in an amount of about 0.1 wt % to about 20 wt % based on the total weight of the negative active material for a rechargeable lithium battery. | 04-14-2011 |
| 20100055566 | ACTIVE ELEMENT AND BATTERY AS WELL AS METHOD FOR THE PRODUCTION THEREOF - The present invention relates to an active element for a battery whose material contains copper oxyphosphate and an additive improving the conductivity. The proportion of the additive improving the conductivity in the material is between 3 and 7 wt. %, preferably between approximately 3 wt. % and approximately 5 wt. %, and the proportion of the copper oxyphosphate in the material adds up to 100 wt. %. The invention additionally relates to a battery having an active element of this type as well as a method for producing an active element of this type and a battery of this type. The battery according to the invention is suitable in particular for use in medical implants. | 03-04-2010 |
| 20110052986 | Sodium Ion Batteries - Sodium ion batteries are based on sodium based active materials selected among compounds of the general formula A | 03-03-2011 |
| 20090023065 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE INCLUDING THE SAME AND LITHIUM BATTERY USING THE ANODE - A composite anode active material includes a composite of a carbon-based anode active material, a metal-based anode active material and polymer particles. By increasing the conductivity of the composite anode active material, a lithium battery having a large capacity, high initial efficiency, high rate capability and improved cycle life performance can be obtained. An anode includes the composite anode active material and a lithium battery includes the anode. | 01-22-2009 |
| 20120202119 | ACTIVE MATERIAL FOR BATTERY AND BATTERY - A main object of the present invention is to an active material for battery having a high thermal stability and a low electric potential. The object is attained by providing the active material for battery contains an Y element, a Ba element, a Cu element, and an O element and contains a YBa | 08-09-2012 |
| 20090220860 | Composite compound with mixed crystalline structure - A composite lithium compound having a mixed crystalline structure is provided. Such compound can be formed by heating lithium, iron, phosphorous and carbon sources with a lithium metal compound. The resulting mixed metal crystal can exhibit superior electrical property and is a better cathode material for lithium secondary batteries. | 09-03-2009 |
| 20100330425 | PASSIVATION FILM FOR SOLID ELECTROLYTE INTERFACE OF THREE DIMENSIONAL COPPER CONTAINING ELECTRODE IN ENERGY STORAGE DEVICE - A system and method for fabricating lithium-ion batteries using thin-film deposition processes that form three-dimensional structures is provided. In one embodiment, an anodic structure used to form an energy storage device is provided. The anodic structure comprises a conductive substrate, a plurality of conductive microstructures formed on the substrate, a passivation film formed over the conductive microstructures, and an insulative separator layer formed over the conductive microstructures, wherein the conductive microstructures comprise columnar projections. | 12-30-2010 |
| 20100330426 | Electrode Active Material and Method of Making The Same - The invention provides an electrochemical cell which includes a first electrode and a second electrode which is a counter electrode to said first electrode, and an electrolyte material interposed there between. The first electrode includes an alkali metal phosphorous compound doped with an element having a valence state greater than that of the alkali metal. | 12-30-2010 |
| 20100330427 | NEGATIVE ELECTRODE AND METHOD FOR PRODUCING THE SAME AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - In a negative electrode including a negative electrode plate, a negative electrode lead, and an alloy layer, the negative electrode plate includes a negative electrode current collector and a thin film-like negative electrode active material layer including an alloy-based negative electrode active material and being formed on a surface of the negative electrode current collector; the negative electrode lead contains at least one metal or alloy selected from the group consisting of nickel, nickel alloys, copper, and copper alloys; and the negative electrode current collector and the negative electrode lead are bonded to each other via an alloy layer. As such, in the negative electrode utilizing an alloy-based negative electrode active material, the negative electrode current collector and the negative electrode lead are bonded to each other in an efficient and secured manner, and the conductivity between the negative electrode current collector and the negative electrode lead is improved. As a result, a high capacity negative electrode having good current collecting performance is obtained. | 12-30-2010 |
| 20100330423 | INTERCONNECTED HOLLOW NANOSTRUCTURES CONTAINING HIGH CAPACITY ACTIVE MATERIALS FOR USE IN RECHARGEABLE BATTERIES - Provided are electrode layers for use in rechargeable batteries, such as lithium ion batteries, and related fabrication techniques. These electrode layers have interconnected hollow nanostructures that contain high capacity electrochemically active materials, such as silicon, tin, and germanium. In certain embodiments, a fabrication technique involves forming a nanoscale coating around multiple template structures and at least partially removing and/or shrinking these structures to form hollow cavities. These cavities provide space for the active materials of the nanostructures to swell into during battery cycling. This design helps to reduce the risk of pulverization and to maintain electrical contacts among the nanostructures. It also provides a very high surface area available ionic communication with the electrolyte. The nanostructures have nanoscale shells but may be substantially larger in other dimensions. Nanostructures can be interconnected during forming the nanoscale coating, when the coating formed around two nearby template structures overlap. | 12-30-2010 |
| 20100330422 | Unit Cell for Secondary Battery Having Conductive Sheet Layer and Lithium Ion Secondary Battery Having the Same - Disclosed herein is a unit cell for a lithium ion secondary battery, which includes an electrode laminate formed in such a manner that a plurality of unit structures are stacked, each of which includes and least one electrode and at least one separation layer; and at least one conductive sheet layer located between certain layers in the electrode laminate and electrically connected to an electrode lead. The conductive sheet layer of the unit cell for the lithium ion secondary battery rapidly conducts current to the outside or generates heat in quantity smaller than the quantity of heat generated in positive and negative electrodes when short-circuit occurs due to a physical or electrical impact applied to the battery. Accordingly, it is possible to reduce the risk of firing or explosion due to the physical or electrical impact to improve the safety of the lithium ion secondary battery. | 12-30-2010 |
| 20100330424 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES AND LITHIUM SECONDARY BATTERY - A negative electrode ( | 12-30-2010 |
| 20110086272 | LI-ION BATTERY AND ITS PREPARATION METHOD - Disclosed herein is a Li-ion cell comprising a cathode, an anode, and a separator disposed between the cathode and the anode, wherein the cathode comprises Li-ion cathode active material, and the anode comprises Li-ion anode active material and an additive which has an energy density greater than that of the Li-ion anode active material and which is capable of reacting irreversibly with Li-ions. | 04-14-2011 |
| 20100196760 | PRODUCTION - A pre-charged material including silicon-comprising fibres characterised in that two or more of the fibres are bonded together to create both a bonded felt anode structure, with or without a current collector, and a composite anode structure with a current collector and an electrode structure. The structure overcomes problems associated with charge/discharge capacity loss. | 08-05-2010 |
| 20110189543 | Cathode active material with magnesium, and magnesium secondary battery with the same - Disclosed herein is a magnesium secondary battery. The magnesium secondary battery includes an anode, a cathode, and an electrolyte material in which carrier ions, used as carriers between the anode and the cathode at the time of charge/discharge, are received, wherein at least any one of the cathode and the cathode is composed of a spinel crystal structure having magnesium ions Mg. | 08-04-2011 |
| 20110117433 | SOLID ELECTROLYTE CELL AND POSITIVE ELECTRODE ACTIVE MATERIAL - A solid electrolyte cell includes: a positive electrode side layer having a positive electrode active material layer; a negative electrode side layer; and a solid electrolyte layer formed between the positive electrode side layer and the negative electrode side layer, wherein the positive electrode active material layer contains a lithium phosphoric acid compound which is in an amorphous state and is represented by the following formula (1), | 05-19-2011 |
| 20110070494 | Electrochemical cells comprising porous structures comprising sulfur - The present invention relates to the use of porous structures comprising sulfur in electrochemical cells. Such materials may be useful, for example, in forming one or more electrodes in an electrochemical cell. For example, the systems and methods described herein may comprise the use of an electrode comprising a conductive porous support structure and a plurality of particles comprising sulfur (e.g., as an active species) substantially contained within the pores of the support structure. The inventors have unexpectedly discovered that, in some embodiments, the sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can be tailored such that the contact between the electrolyte and the sulfur is enhanced, while the electrical conductivity and structural integrity of the electrode are maintained at sufficiently high levels to allow for effective operation of the cell. Also, the sizes of the pores within the porous support structures and/or the sizes of the particles within the pores can be selected such that any suitable ratio of sulfur to support material can be achieved while maintaining mechanical stability in the electrode. The inventors have also unexpectedly discovered that the use of porous support structures comprising certain materials (e.g., metals such as nickel) can lead to relatively large increases in cell performance. In some embodiments, methods for forming sulfur particles within pores of a porous support structure allow for a desired relationship between the particle size and pore size. The sizes of the pores within the porous support structure and/or the sizes of the particles within the pores can also be tailored such that the resulting electrode is able to withstand the application of an anisotropic force, while maintaining the structural integrity of the electrode. | 03-24-2011 |
| 20110070493 | CURRENT COLLECTORS HAVING TEXTURED COATING - A current collector and an electric double layer capacitor including a current collector. The current collector has a conductive layer with an electrode-facing surface and an opposing second surface, each surface having an area, and a textured coating formed over and in contact with at least a majority of the electrode-facing surface. | 03-24-2011 |
| 20090297948 | METAL OXIDE NEGATIVE ELECTRODES FOR LITHIUM-ION ELECTROCHEMICAL CELLS AND BATTERIES - Provided are negative electrode compositions for lithium-ion electrochemical cells that include metal oxides and polymeric binders. Also provided are electrochemical cells and battery packs that include electrodes made with these compositions. | 12-03-2009 |
| 20110097628 | NUCLEATION AND GROWTH OF TIN PARTICLES INTO THREE DIMENSIONAL COMPOSITE ACTIVE ANODE FOR LITHIUM HIGH CAPACITY ENERGY STORAGE DEVICE - Embodiments of the present invention generally relate to lithium-ion batteries, and more specifically, to a system and method for fabricating such batteries using thin-film processes that form three-dimensional structures. In one embodiment, an anodic structure used to form an energy storage device is provided. The anodic structure comprises a flexible conductive substrate, a plurality of conductive microstructures formed on the conductive substrate, comprising a plurality of columnar projections and dendritic structures formed over the plurality of columnar projections and a plurality of tin particles formed on the plurality of conductive microstructures. In another embodiment, the anodic structure further comprises a tin nucleation layer comprising tin particles formed on the flexible conductive substrate between the flexible conductive substrate and the plurality of conductive microstructures. | 04-28-2011 |
| 20120045694 | CATHODE, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE CATHODE - A cathode, a method of preparing the same, and a lithium battery including the cathode. The cathode includes: a current collector; a first cathode active material layer disposed on the current collector; and a second cathode active material layer disposed on the first cathode active material layer, wherein the first cathode active material layer comprises a lithium transition metal oxide having a layered structure, and the second cathode active material layer comprises a lithium transition metal oxide having a spinel structure and an average working potential of 4.5 V or more. | 02-23-2012 |
| 20120045693 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the same. The negative active material includes secondary particles including assembled primary particles of a compound represented by the following Chemical Formula 1, and has a specific surface area at 2 m | 02-23-2012 |
| 20120009475 | ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING THE SAME - An electrode for a non-aqueous electrolyte secondary battery includes a sheet-like current collector and an active material layer including a first layer and a second layer which are adhering to a surface of the current collector in this order. The first layer includes a carbon material that absorbs or releases lithium ions reversibly at a first potential, while the second layer includes a transition metal oxide that absorbs or releases lithium ions reversibly at a second potential higher than the first potential. The difference between the first potential and the second potential is 0.1 V or more, and the ratio of the thickness T1 of the first layer to the thickness T2 of the second layer, i.e., the ratio T1/T2, is from 0.33 to 75. | 01-12-2012 |
| 20080248389 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials for rechargeable lithium batteries are provided. One negative active material includes a metal matrix, and an intermetallic compound including a Si active metal and an additive metal dispersed in the metal matrix. The intermetallic compound does not react with the metal matrix. | 10-09-2008 |
| 20080233480 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY - Negative active materials and rechargeable lithium batteries including the negative active materials are provided. The negative active material includes an intermetallic compound of Si and a metal, and a metal matrix including Cu and Al. The negative active material may provide a rechargeable lithium battery having high capacity and excellent cycle-life and cell efficiency. | 09-25-2008 |
| 20120015248 | POSITIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE POSITIVE ACTIVE MATERIAL - A positive active material, a method of preparing the same, and a lithium battery including the same. | 01-19-2012 |
| 20120021288 | ELECTRODE-ACTIVE ANION-DEFICIENT LITHIUM TRANSITION-METAL PHOSPHATE, METHOD FOR PREPARING THE SAME, AND ELECTROCHEMICAL DEVICE USING THE SAME - The invention provides an anion-deficient lithium transition-metal phosphate as an electrode-active material, which is represented by the chemical formula Li | 01-26-2012 |
| 20120021287 | POSITIVE ELECTRODE AND LITHIUM BATTERY INCLUDING THE SAME - Disclosed is a positive electrode and a lithium battery including the positive electrode. The positive electrode includes a first active material represented by Formula 1: Li | 01-26-2012 |
| 20120064408 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Provided is a positive active material for a lithium rechargeable battery that includes primary particles including a compound being capable of intercalating and deintercalating lithium, and secondary particles including the primary particles gathered with one another, wherein the secondary particles have a void core structure. A method of preparing the same and a lithium rechargeable battery including the same are also provided. | 03-15-2012 |
| 20110104569 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME, AND METHOD FOR PRODUCING THE SAME - A method for producing a positive electrode for non-aqueous electrolyte secondary battery of the present invention includes the steps of: (1) producing a positive electrode precursor by applying a positive electrode slurry including a positive electrode active material comprising a lithium-containing composite oxide including nickel, a binder, and a conductive agent on a positive electrode core material, the positive electrode active material including secondary particles having an average particle diameter of 8 μm or more, and then drying the positive electrode slurry to form a positive electrode material mixture layer; and (2) rolling while heating the positive electrode precursor to produce a positive electrode in which 3.5 g or more of the positive electrode active material is included per 1 cm | 05-05-2011 |
| 20120121984 | ALKALINE COLLECTOR ANODE - An alkaline battery includes a cathode, an alkaline electrolyte, and a copper-based anode which reduces hydrogen gassing without a protective coating or plating to less than 50% of the gas production observed using tin-plated 260 brass. An alloy for an anode which reduces hydrogen gassing without a protective coating or plating to less than 50% of the gas production observed using tin-plated 260 brass includes 0.01% to 9.0% tin, no more than 1% of phosphorus, no more than 1% of incidental elements and impurities, and the balance copper, in wt %. Another alloy for an anode which reduces hydrogen gassing without a protective coating or plating to less than 50% of the gas production observed using tin-plated 260 brass includes 1.0% to 40% zinc, about 0.01% to 5.0% tin, no more than 1% of phosphorus, no more than 1% of incidental elements and impurities, and the balance copper, in wt %. | 05-17-2012 |
| 20090061319 | SILICON THIN FILM ANODE FOR LITHIUM SECONDARY BATTERY AND PREPARATION METHOD THEREOF - Disclosed are a silicon thin film anode for a lithium secondary battery having enhanced cycle characteristics and capacity and a preparation method thereof. A preparation method for a silicon thin film anode for a lithium secondary battery, comprises: preparing a collector including a metal; forming an anode active material layer including a silicon on the collector; forming one or more interface stabilizing layer, by annealing the collector and the anode active material layer under one of an inert atmosphere, a reduced atmosphere, and a vacuum atmosphere to react a metallic component of at least one of the collector and the anode active material layer with a silicon component of the anode active material layer at an interface therebetween; and forming a carbon coating layer on the anode active material layer by performing an annealing process in a hydrocarbon atmosphere. | 03-05-2009 |
| 20120121983 | Lithium Deposited Anode for a Lithium Second Battery and Its Manufacturing Method - The present invention relates to a lithium deposited anode for a lithium secondary battery and a method for preparing the same, and more particularly, to an anode suitable for a lithium secondary battery which limits dendrite growth only inside the concave portion of the silicon substrate during a battery is charged/discharged by depositing lithium as an active material only on the deeply caved concave portion of an anode current collector of which a micro-size patterned silicon substrate has conductivity provided by a metal, and its manufacturing method. | 05-17-2012 |
| 20120129049 | METHOD OF MAKING SILICON ANODE MATERIAL FOR RECHARGEABLE CELLS - A method of forming a silicon anode material for rechargeable cells includes providing a metal matrix that includes no more than 30 wt % of silicon, including silicon structures dispersed therein. The metal matrix is at least partially etched to at least partially isolate the silicon structures. | 05-24-2012 |
| 20120135309 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD FOR MANUFACTURING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed is an positive active material for a rechargeable lithium battery that includes an olivine-type composite oxide; and a metal or an alloy thereof adhered to a surface of the olivine-type composite oxide, wherein the metal or the alloy is selected from the group consisting of germanium (Ge), zinc (Zn), gallium (Ga), and a combination thereof. | 05-31-2012 |
| 20100173197 | CATHODE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME AND BATTERY - A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode ( | 07-08-2010 |
| 20120219860 | HETERO-NANOSTRUCTURE MATERIALS FOR USE IN ENERGY-STORAGE DEVICES AND METHODS OF FABRICATING SAME - The embodiments disclosed herein relate to hetero-nano structure materials for use in energy-storage devices, and more particularly to the fabrication of hetero-nanostructure materials and the use of the hetero-nano structure materials as battery electrodes. In an embodiment, a Si/TiSi | 08-30-2012 |
| 20120171570 | ELECTRODE COMPOSITE MATERIAL AND LITHIUM ION BATTERY USING THE SAME - The present disclosure relates to an electrode composite material. The electrode composite material includes a number of electrode composite material particles. Each of the plurality of electrode composite material particles includes an electrode active material particle and a doped aluminum phosphate layer coated on a surface of the electrode active material particle. A material of the doped aluminum phosphate layer is a semiconducting doped aluminum phosphate. | 07-05-2012 |
| 20090098460 | NEGATIVE PLATE FOR LITHIUM ION BATTERIES AND A METHOD OF PREPARING THE SAME - In one aspect, a negative plate for a battery comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric. In another aspect, a method for preparing a negative plate for a battery comprises coating a negative active material onto a negative current collector. The negative current collector comprises a conductive non-woven fabric. In yet another aspect, a battery comprises a negative plate. The negative plate comprises a negative current collector coated with a negative active material. The negative current collector comprises a conductive non-woven fabric. | 04-16-2009 |
| 20100159324 | LITHIUM POWDERS FOR BATTERIES - This invention relates to lithium-ion batteries and cathode powders for making lithium-ion batteries where the cathode powder comprises a blend or mixture of at least one lithium transition metal poly-anion and with one or more lithium transition-metal oxide powders. A number of different lithium transition-metal oxides are suitable, especially formulations that include nickel, manganese and cobalt. The preferred lithium transition metal poly-anion is carbon-containing lithium vanadium phosphate. Batteries using the mixture or blend of these powders have been found to have high specific capacity, especially based on volume, high cycle life, substantially improved safety issues as compared to lithium transition-metal oxides, per se, and an attractive electrode potential profile. | 06-24-2010 |
| 20120082896 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte. A mixture containing a zinc-containing alloy represented by MZn | 04-05-2012 |
| 20120082895 | Negative electrode active material for lithium secondary battery and negative electrode for lithium secondary battery - The present invention relates to a negative electrode active material for a lithium secondary battery, which has a composition containing Si in an amount of from 30 to 65% by mass and has a two phase matrix structure including an Sn—Cu based alloy matrix having an Sn content of 50% by mass or more, Si crystallites dispersed in the Sn—Cu based alloy matrix and an Si—X based alloy crystallized so as to at least partially cover the Si crystallites, in which X is at least one element selected from Fe, Ni and Co and is added in the Si—X based alloy in an amount of 1% by mass or more. | 04-05-2012 |
| 20100261059 | COMPOSITE ANODE ACTIVE MATERIAL, ANODE INCLUDING THE COMPOSITE ANODE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE ANODE, METHOD OF PREPARING THE COMPOSITE ANODE ACTIVE MATERIAL - A composite anode active material including an intermetallic compound; carbon; and inorganic particles, an anode including the composite anode active material, a lithium battery employing the anode, and a method of preparing the anode active material. | 10-14-2010 |
| 20110123865 | COMPOSITE FOR CATHODE OF LI-ION BATTERY, ITS PREPARATION PROCESS AND THE LI-ION BATTERY - Disclosed herein is a composite for the cathode of Li-ion battery comprising: a base active material represented by Li | 05-26-2011 |
| 20120328946 | LITHIUM ION BATTERIES USING DISCRETE CARBON NANOTUBES, METHODS FOR PRODUCTION THEREOF AND PRODUCTS OBTAINED THEREFROM - Compositions, and methods of obtaining them, useful for lithium ion batteries comprising discrete oxidized carbon nanotubes having attached to their surface lithium ion active materials in the form of nanometer sized crystals or layers. The composition can further comprise graphene or oxygenated graphene. | 12-27-2012 |
| 20120264018 | COMPOSITE POSITIVE ELECTRODE MATERIAL WITH CORE-SHELL STRUCTURE FOR LITHIUM ION BATTERIES AND PREPARING METHOD THEREOF - A composite positive electrode material with a core-shell structure for a lithium ion battery consists of a core active material and a shell active material. The core active material is a lithium iron phosphate or a lithium manganate, and the shell active material is a composite lithium iron phosphate with carbon. The carbon is one or more of carbon nanotube, superfine conductive carbon black and amorphous carbon material. The composite positive electrode material includes from 65% to 99% core active material and from 1% to 35% shell active material, based on the total weight of the composite positive electrode material. The composite positive electrode material has stable property and excellent electrochemistry performance. The lithium ion battery made with the material has higher charge-discharge capacity, excellent cycle performance. It can be charged quickly and discharged at high rate. A preparing method for the composite positive electrode material is also provided. | 10-18-2012 |
| 20110039158 | CATHODE MATERIALS FOR SECONDARY (RECHARGEABLE) LITHIUM BATTERIES - The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO | 02-17-2011 |
| 20110045351 | High-Power Nanoscale Cathodes for Thin-Film Microbatteries - A method, including placing a substrate of a battery in a bath consisting of a metal M chosen from a metal group consisting of Fe, Ni, Co, Cu, W, V, and Mn, an oxidant selected from an oxidant group consisting of oxygen and sulfur, and a polymer. The method also includes applying an electrical current so as to form on the substrate a metal M compound cathode having a nanoscale grain structure. | 02-24-2011 |
| 20120321956 | Positive-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 a lithium ion battery having good battery performance can be provided. The positive electrode active material for a lithium ion battery is represented by; | 12-20-2012 |
| 20110236756 | Negative electrode for lithium secondary battery and manufacturing method therreof - A negative electrode for a lithium (Li) secondary battery, a method of forming the same, and a secondary battery, the negative electrode including a tin (Sn) based current collector layer; and a multilayer film on the Sn based current collector, the multilayer film having two or more layers, wherein the multilayer film includes at least one porous layer. | 09-29-2011 |
| 20100233540 | LITHIUM IRON PHOSPHATE HAVING OLIVINE STRUCTURE AND METHOD FOR PREPARING THE SAME - Provided is an olivine-type lithium iron phosphate composed of secondary particles having a mean particle diameter (D | 09-16-2010 |
| 20100203387 | ELECTRODE FOR LITHIUM RECHARGEABLE BATTERY AND LITHIUM RECHARGEABLE BATTERY COMPRISING THE ELECTRODE - An electrode for a lithium secondary battery | 08-12-2010 |
| 20100203386 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature. | 08-12-2010 |
| 20110274973 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - The positive active material for a rechargeable lithium battery includes a composite material of a microporous carbon-based material and a lithium composite compound and a carbon layer on the surface of the composite material. | 11-10-2011 |
| 20120282523 | CATHODE COMPOSITIONS FOR LITHIUM-ION BATTERIES - A lithium-ion battery has (a) an anode; (b) a cathode having a cathode composition of the formula Li[M | 11-08-2012 |
| 20100167126 | ELECTRODE COMPOSITIONS BASED ON AN AMORPHOUS ALLOY HAVING A HIGH SILICON CONTENT - An electrode composition for a lithium ion battery that includes an amorphous alloy having the formula Si | 07-01-2010 |
| 20130017446 | ENERGY STORAGE DEVICE - An energy storage device comprising an anode, electrolyte, and cathode is provided. The cathode comprises a plurality of granules comprising a support material, an active electrode metal, and a salt material, such that the cathode has a granule packing density equal to or greater than about 2 g/cc. A cathode comprising greater than about 10 volume % total metallic content in a charged state of the cathode is also provided. | 01-17-2013 |
