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| Number | Title | Issue Date |
| 8163427 | Nonaqueous electrolytic solution for lithium secondary battery and lithium secondary battery using the same A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous s... | 04/24/2012 |
| 8048573 | Organic electrolytic solution and lithium battery using the same Organic electrolytic solutions and lithium batteries using the organic electrolytic solutions are provided. One organic electrolytic solution includes a lithium salt, a mixed organic solvent consisting of a high-dielectric constant solvent and a low-boiling point so... | 11/01/2011 |
| 7846588 | Electrolyte for lithium secondary battery and lithium secondary battery comprising same An electrolyte for a lithium secondary battery is provided. The electrolyte improves battery safety, high temperature storage characteristics, and electrochemical properties of lithium batteries. The electrolyte comprises at least one lithium salt and a non-aqueous ... | 12/07/2010 |
| 7767350 | Nonaqueous electrolyte battery A nonaqueous electrolyte battery includes: a cathode using a composite compound of lithium and transition metals as a positive active material; an anode using a negative active material capable of being doped with and doped from lithium; and a nonaqueous electrolyte... | 08/03/2010 |
| 7745057 | Nonaqueous electrolyte secondary battery A nonaqueous electrolyte secondary battery 10 according to an embodiment of the invention includes a positive electrode 11, a negative electrode 12, a separator 13 and a nonaqueous electrolyte liquid in which not only the positive electro... | 06/29/2010 |
| 7727677 | Nonaqueous electrolyte solution and lithium secondary battery using same Disclosed is a lithium secondary battery which is excellent in battery characteristics such as long-term cycle characteristics, capacity and shelf life characteristics. Also disclosed is a nonaqueous electrolyte solution which can be used for such a lithium secondar... | 06/01/2010 |
| 7709155 | Nonaqueous electrolytic solution and lithium-ion secondary battery A nonaqueous solvent in a nonaqueous electrolytic solution in a lithium-ion secondary battery 1 contains propylene carbonate (PC), a first compound expressed by formula (I), and a second compound expressed by formula (II). The content of PC in the nonaqueous ... | 05/04/2010 |
| 7585594 | Electrolyte with indicator An electrolyte with an indicator, such as a dye, for detecting leakage from an electrochemical energy storage device is provided. Also provided is a method of making such an electrolyte with indicator; a device that incorporates such an electrolyte with indicator; a... | 09/08/2009 |
| 7575833 | Nonaqueous electrolyte and lithium secondary battery employing the same The invention relates to a nonaqueous electrolyte which comprises a nonaqueous organic solvent and a lithium salt dissolved therein, wherein the nonaqueous organic solvent contains at least one compound selected from the group consisting of acid anhydrides and carbo... | 08/18/2009 |
| 7524588 | Nonaqueous secondary battery A nonaqueous secondary battery includes a negative electrode using a negative electrode active material containing a carbonaceous material; a positive electrode using a positive electrode active material capable of reversibly intercalating and deintercalating lithiu... | 04/28/2009 |
| 7476469 | Lithium secondary battery A rechargeable lithium battery including a positive electrode, a negative electrode and a nonaqueous electrolyte, said positive or negative electrode being an electrode which has, on a current collector, a thin film of active material that stores and releases lithiu... | 01/13/2009 |
| 7442471 | Solvent systems comprising a mixture of lactams and esters for non-aqueous electrolytes and non-aqueous electrolyte cells comprising the same A non-aqueous electrolyte solution for lithium or a lithium ion cell, which improves lithium ion cell capacity retention and enhances storage life thereof. The non-aqueous solution can be implemented in the context of an electrolyte system that includes a lithium sa... | 10/28/2008 |
| 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 |
| 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 |
| 7425388 | Electrolyte for a lithium battery and a lithium battery comprising the same An electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive comprising a) a sulfone-based compound and b) a C3 to C30 organic peroxide or azo-based compound. The electrolyte may further include a... | 09/16/2008 |
| 7422827 | Nonaqueous electrolyte Disclosed is a nonaqueous electrolyte for a lithium-ion secondary battery that contains an addictive for preventing destruction of a solid electrolyte interface (SEI) layer and hence decomposition of the electrolyte that may cause generation of a gas, thereby preven... | 09/09/2008 |
| 7416817 | Battery The invention provides a battery which can improve cycle characteristics by forming a more stable and stronger film on the surface of an anode active material layer. A cathode and an anode are layered with a separator in between. The anode has an anode collector and... | 08/26/2008 |
| 7402260 | Non-aqueous solvent mixture and non-aqueous electrolytic solution containing such mixture A non-aqueous mixture solvent for a non-aqueous electrolytic solution to be used for electrochemical energy devices, which contains an aprotic solvent, and a fluorinated ketone of the formula: (wherein Rf1 | 07/22/2008 |
| 7399554 | Hybrid rechargeable battery having high power and high energy density lithium cells A hybrid rechargeable lithium battery, which includes a plurality of high power rechargeable cells, having nano-particles therein, and high energy density rechargeable cells, with the high energy cells recharging the high power cells. The battery preferably includes... | 07/15/2008 |
| 7384708 | Non-aqueous electrolyte battery A non-aqueous electrolyte battery of the present invention includes a non-aqueous electrolyte containing a lithium salt, a cyclic sultone derivative, and an acid anhydride, wherein the non-aqueous electrolyte contains the cyclic sultone derivative in an amount of 0.... | 06/10/2008 |
| 7378186 | Flat non-aqueous electrolyte secondary cell In a flat non-aqueous electrolyte secondary cell comprising an electricity-generating element including at least a cathode, a separator and an anode and a non-aqueous electrolyte in the inside of a cathode case, a plurality of electrode units each consisting of the ... | 05/27/2008 |
| 7378190 | Non-aqueous electrolyte secondary battery Storage performance in a charged state is improved with a non-aqueous electrolyte secondary battery using gamma-butyrolactone as a solvent. A non-aqueous electrolyte secondary battery includes a positive electrode (2) containing a positive electrode active ma... | 05/27/2008 |
| 7368203 | Nonaqueous electrolyte secondary cell The present invention provides a non-aqueous electrolyte secondary cell that has good high-temperature cycle characteristics and good high-temperature standing resistance, and that is highly safe enough to prevent overcharge. The non-aqueous electrolyte secondary ce... | 05/06/2008 |
| 7358010 | Fluorinated carbon for metal/fluorinated carbon batteries A novel cathode composition for use in a metal/fluorinated carbon battery is produced by mixing fluorinated carbons made from anisotropic and isotropic carbon, where the anisotropic carbon is carbon fiber and the isotropic carbon is graphite. This cathode compositio... | 04/15/2008 |
| 7354677 | Battery pack A battery pack comprising a lithium ion secondary battery and a current interrupting device for protecting the secondary battery, the secondary battery comprising positive and negative electrodes, a separator interposed between the positive and negative electrodes a... | 04/08/2008 |
| 7351501 | Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising same Disclosed is a non-aqueous electrolyte for a rechargeable lithium battery including a polyether-modified silicon oil in which a polyether chain is bonded to a terminal end of a linear polysiloxane, a cyclic carbonate, and a lithium salt. ... | 04/01/2008 |
| 7348101 | Lithium secondary cell with high charge and discharge rate capability A high capacity, high charge rate lithium secondary cell includes a high capacity lithium-containing positive electrode in electronic contact with a positive electrode current collector, said current collector in electrical connection with an external circuit, a hig... | 03/25/2008 |
| 7341807 | Non-flammable nonaqueous electrolyte solution and lithium ion cell using same Disclosed are a non-flammable nonaqueous electrolyte solution and a lithium ion cell using the electrolyte solution. The non-flammable nonaqueous electrolyte solution comprises a ternary or higher-order compound additive, a high concentration of lithium salt and a p... | 03/11/2008 |
| 7342770 | Recyclable dry particle based adhesive electrode and methods of making same A dry process based capacitor and method for using one or more recyclable electrode film structure is disclosed. ... | 03/11/2008 |
| 7311993 | 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... | 12/25/2007 |
| 7309548 | Lithium secondary battery A lithium secondary battery comprising a positive electrode, a negative electrode, and a nonaqueous electrolyte, wherein the positive electrode or the negative electrode is an electrode obtained by depositing a thin film of active material capable of lithium storage... | 12/18/2007 |
| 7300723 | Heat resistant lithium cell The present invention provides a cell that does not impair heat resistant safety and electrochemical characteristics such as a discharge characteristic, and enhances long-period reliability. In the cell of the present invention, a nonaqueous solvent has, among compo... | 11/27/2007 |
| 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 |
| 7294436 | Nonaqueous electrolytic solution and lithium secondary batteries In order to manufacture a lithium secondary battery having excellent performances in safety under overcharge condition, cycle property, electric capacity, and storage endurance, 0.1 wt. % to 10 wt. % of a tert-alkylbenzene compound is favorably incorporated into a n... | 11/13/2007 |
| 7285362 | Safe battery solvents An ion transporting solvent maintains very low vapor pressure, contains flame retarding elements, and is nontoxic. The solvent in combination with common battery electrolyte salts can be used to replace the current carbonate electrolyte solution, creating a safer ba... | 10/23/2007 |
| 7285356 | Non-aqueous electrochemical cells Electrochemical cells are disclosed. In some embodiments, an electrochemical cell includes a cathode having less than about 2,000 ppm of water, an anode, and an electrolyte having a first lithium salt and LiPF6. ... | 10/23/2007 |
| 7282303 | Non-aqueous secondary battery and portable equipment using the same A non-aqueous secondary battery is provided, which has excellent overcharging safety, less generation of gas during storage at a high temperature, and can ensure storage reliability. A non-aqueous secondary battery includes a positive electrode, a negative el... | 10/16/2007 |
| 7261979 | Lithium secondary cell with high charge and discharge rate capability A high capacity, high charge rate lithium secondary cell includes a high capacity lithium-containing positive electrode in electronic contact with a positive electrode current collector, said current collector in electrical connection with an external circuit, a hig... | 08/28/2007 |
| 7261975 | Non-aqueous electrolytic solution and lithium secondary battery using the same The present invention provides a lithium secondary battery which is improved particularly in cycle characteristics. Disclosed is a lithium secondary battery which uses a non-aqueous electrolytic solution obtained by dissolving electrolyte salt in a non-aqueous solve... | 08/28/2007 |
| 7255966 | 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): | 08/14/2007 |
