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| Number | Title | Issue Date |
| 8178241 | Electrode including current collector with nano-scale coating and method of making the same Current collectors and methods are provided that relate to electrodes that are useful in lithium polymer electrochemical cells. The provided current collectors include a metallic substrate, a substantially uniform nano-scale carbon coating, and an active electrode m... | 05/15/2012 |
| 8153303 | Negative electrode material for lithium ion secondary battery and method for producing the same A negative electrode material for lithium ion secondary batteries includes core-shell composite particles prepared by covering the surface of a graphite powder with an amorphous carbon powder via a carbide of binder pitch, the graphite powder having an average parti... | 04/10/2012 |
| 7993780 | Process for producing carbon anode compositions for lithium ion batteries This invention provides a process for producing a lithium secondary battery. The process comprises: (a) providing a positive electrode; (b) providing a negative electrode comprising a carbonaceous material capable of absorbing and desorbing lithium ions, wherein the... | 08/09/2011 |
| 7829222 | Artificial graphite particles and method for manufacturing same, nonaqueous electrolyte secondary cell, negative electrode and method for manufacturing same, and lithium secondary cell Artificial graphite particles, having a secondary particle structure in which a plurality of primary particles composed of graphite are clustered or bonded together, and having a layer structure in which the edge portion of the primary particles is bent in a polyhed... | 11/09/2010 |
| 7816037 | Anode material for lithium ion secondary battery The invention provides an anode material for lithium ion secondary battery using a coated graphite powder as a raw material, which is coated thermoplastic resin of a carbonization yield of ≦20 wt % in a proportion of ≦10 parts by weight the carbonized material p... | 10/19/2010 |
| 7662513 | Negative electrode active material for lithium-based secondary battery and method of preparing same A negative electrode active material for a lithium-based secondary battery includes a graphite-like carbon material having an intensity ratio I(110)/I(002) of an X-ray diffraction peak intensity I(002) at a (002) plane to an X-ray diffrac... | 02/16/2010 |
| 7563542 | Subfluorinated graphite fluorides as electrode materials Subfluorinated graphite fluorides of formula CFx wherein CFx is in the range of 0.06 to 0.63, e.g., 0.10 to 0.46, are used as electrode materials in electrochemical devices that convert chemical energy to electrical current, e.g., batteries. Th... | 07/21/2009 |
| 7438994 | Non-aqueous electrolyte secondary battery A non-aqueous electrolyte secondary battery has a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte solution. The positive electrode has a theoretical capacity per unit area from 3.0 to 4.5 mAh/cm2. The non-aqueous elect... | 10/21/2008 |
| 7438992 | Lithium-based active materials and preparation thereof The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrode formed fr... | 10/21/2008 |
| 7438991 | Nonaqueous electrolyte secondary cell and method for charging same The invention provides a non-aqueous electrolyte secondary cell that has high capacity and excels in cycle characteristics. The non-aqueous electrolyte secondary cell functions stably at a high potential of from 4.4 to 4.6 V with respect to lithium and inhibits the ... | 10/21/2008 |
| 7419747 | Electrolyte for secondary battery and secondary battery using same An electrolyte for a secondary battery containing an aprotic solvent which contains at least imide anion, transition metal ion and a compound containing a sulfonyl group in an aprotic solvent 15. The electrolyte has the performance such as the excellent energ... | 09/02/2008 |
| 7416814 | Lithium secondary battery, and process for producing the same A lithium secondary battery, which comprises a positive electrode, a negative electrode containing a lithium ion-storable/dischargeable negative electrode-active material and a lithium ion conductive, non-aqueous electrolytic solution or polymer electrolyte can have... | 08/26/2008 |
| 7413829 | Lithium secondary battery In a lithium secondary battery comprising positive and negative electrodes each comprising at least an active material capable of occluding and releasing lithium ions, a binder and a current collector, and an electrolytic solution, the active material in the positiv... | 08/19/2008 |
| 7410727 | Graphite particles and lithium secondary battery using the same as negative electrode A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2 | 08/12/2008 |
| 7399553 | Graphite particles and lithium secondary battery using the same as negative electrode A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2 | 07/15/2008 |
| 7399552 | Battery Provided is a battery capable of improving charge-discharge cycle characteristics. The battery comprises a spirally wound electrode body in which a cathode and an anode are spirally wound with a separator in between. The capacity of the anode includes a capacity com... | 07/15/2008 |
| 7387852 | Polymer electrolyte and lithium battery using the same A polymer electrolyte extends the cycle life, improves the safety, and reduces the swelling of a battery, compared with a polymer electrolyte containing a poly(alkylene oxide) polymer. Also, a lithium battery utilizes the polymer electrolyte. The polymer electrolyte... | 06/17/2008 |
| 7378191 | Graphite particles and lithium secondary battery using the same as negative electrode A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2 | 05/27/2008 |
| 7348103 | Polyfluorinated boron cluster anions for lithium electrolytes The present invention relates to an improvement in lithium secondary batteries comprised of a negative electrode, a positive electrode, a separator, and a lithium-based electrolyte carried in an aprotic solvent and to the electrolyte compositions. The improvement re... | 03/25/2008 |
| 7323120 | Coated carbonaceous particles particulary useful as electrode materials in electrical storage cells, and methods of making the same A process for the production of coated carbonaceous particles including: providing a carbon residue forming material; providing particles of a carbonaceous material; mixing the carbon residue forming material and the particles of a carbonaceous material at an elevat... | 01/29/2008 |
| 7297442 | Nonaqueous electrolytic solution and lithium secondary battery employing the same 1. A non-aqueous electrolytic solution comprising an electrolytic salt in a non-aqueous solvent, which further contains a pentafluorophenoxy compound having the formula (I): in which R represents a substituting group such a... | 11/20/2007 |
| 7288342 | Graphite particles and lithium secondary battery using the same as negative electrode A graphite particle obtained by assembling or binding together a plurality of flat-shaped particles so that the planes of orientation are not parallel to one another, or a graphite particle in which aspect ratio is 5 or less or specific surface area is 8 m2 | 10/30/2007 |
| 7285257 | Method of removing tar-forming gases from CVD/CVI furnace effluent Method for removing tar-forming hydrocarbons from an effluent gas mixtures from Chemical Vapor Deposition or Chemical Vapor Infiltration processes. Method includes passing at elevated temperature effluent gas mixture containing hydrogen, methane, and high molecular ... | 10/23/2007 |
| 7285357 | Electrochemically active material for the positive electrode of an electrochemically rechargeable lithium cell An electrochemically active material resulting from substituting a portion of the nickel in a single-phase composite oxide of nickel and lithium of the LiNiO2 type, characterized in that the active material satisfies the formula: Li(M1 | 10/23/2007 |
| 7285359 | Secondary battery-use negative electrode and secondary battery using it An object of the present invention is to provide a negative electrode for a secondary battery which has large capacity and restrains a rise in resistance inside the battery and reduction in capacity even after cycles and the secondary battery using the same. A first... | 10/23/2007 |
| 7282299 | Solid electrolyte battery A solid electrolyte battery includes a cathode having a cathode active material and a solid electrolyte and an anode. The solid electrolyte includes a first polymer having a binding force and a second polymer composed of alkali metal ion conducting polymers. Thus, t... | 10/16/2007 |
| 7276314 | Lithium metal dispersion in secondary battery anodes The present invention is a secondary battery having a high specific capacity and good cycleability, and that can be used safely. The secondary battery is manufactured to include an anode formed from a host material capable of absorbing and desorbing lithium in an el... | 10/02/2007 |
| 7273597 | Carbon material and method of making same The present invention provides a novel carbon material for a electric double-layer capacitor having characteristics entirely different from prior art activated carbon. The capacitor develops a capacitance by a mechanism entirely different from the mechanism of an el... | 09/25/2007 |
| 7267907 | Negative electrode for rechargeable lithium battery and rechargeable lithium battery comprising same The present invention relates to an electrode for a rechargeable lithium battery comprising an emulsion binder, and a lithium secondary battery including the same. The electrode comprises a current collector coated with an active material layer including active mate... | 09/11/2007 |
| 7241533 | Electrode for rechargeable lithium battery and rechargeable lithium battery An electrode for a rechargeable lithium battery characterized in that thin films of active material capable of lithium storage and release, i.e., microcrystalline or amorphous silicone thin films are deposited on opposite faces of a plate-form current collector.... | 07/10/2007 |
| 7241536 | Electrolyte for lithium secondary battery and lithium secondary battery comprising same A non-aqueous electrolyte for a lithium secondary battery is provided. The electrolyte comprises a lithium salt, a non-aqueous solvent, and an organic compound selected from the group consisting of compounds represented by Formulae (1) to (6): | 07/10/2007 |
| 7238453 | Non-aqueous electrolytic solution with mixed salts The use of at least two electrolyte salts in a lithium secondary battery provides improved battery performance such as long cycle life of high discharge capacity and high capacity retention. ... | 07/03/2007 |
| 7238449 | Nonaqueous electrolytic secondary battery and method of producing anode material thereof A nonaqueous electrolyte secondary battery having a positive electrode made of a carbonaceous material, an electrolyte containing a lithium salt, and a negative electrode made of metallic lithium or a material capable of occluding and releasing lithium, wherein said... | 07/03/2007 |
| 7235330 | Electrode for use in lithium battery and rechargeable lithium battery An electrode for a lithium battery having a thin film composed of active material capable of lithium storage and release, e.g., a microcrystalline or amorphous silicon thin film, provided on a current collector, the electrode being characterized in that the current ... | 06/26/2007 |
| 7229716 | Nonaqueous electrolyte secondary battery A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode comprising a graphite as a negative electrode active material, and a nonaqueous electrolyte including at least a saturated cyclic carbonic ester and containing a cyclic ca... | 06/12/2007 |
| 7229719 | Non-aqueous electrolyte secondary battery A highly safe non-aqueous electrolyte secondary cell with excellent self-extinguishing property or flame retardancy is provided which comprises an anode, a cathode, a non-aqueous electrolyte in which an Li-salt as a supporting salt is dissolved in an organic solvent... | 06/12/2007 |
| 7217475 | Non-aqueous electrolyte secondary battery A non-aqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein positive electrode active material is a ... | 05/15/2007 |
| 7214447 | Graphite powders suited for negative electrode material of lithium ion secondary battery A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of b... | 05/08/2007 |
| 7208248 | Negative-electrode active material for lithium secondary battery, negative electrode for lithium secondary battery, and lithium secondary battery A lithium secondary battery with high-output/high-input characteristics which has a long life, and is highly safe contains a negative electrode of a negative-electrode active material. In a dispersion prepared by dispersing 100 g of the active-material powder in 200... | 04/24/2007 |
| 7195842 | Electrode for use in lithium battery and rechargeable lithium battery In an electrode for a lithium battery having a lithium storing and releasing active thin film provided on a current collector, such as a microcrystalline or amorphous silicon thin film, the electrode is characterized in that the thin film is divided into columns by ... | 03/27/2007 |
