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| Number | Title | Issue Date |
| 8137848 | Method for producing difluorophosphate, nonaqueous electrolyte solution for secondary batteries, and nonaqueous electrolyte secondary battery The present invention provides a simple method for producing a difluorophosphate from a source material, the difluorophosphate being useful as additives for nonaqueous electrolyte solutions for secondary batteries. In the method, a source material containing a carbo... | 03/20/2012 |
| 8076033 | Method for producing difluorophosphate, nonaqueous electrolyte solution for secondary battery and nonaqueous electrolyte secondary battery The present invention provides a simple method for producing a difluorophosphate from a source material, the difluorophosphate being useful as additives for nonaqueous electrolyte solutions for secondary batteries. In the method, a source material containing a carbo... | 12/13/2011 |
| 8029934 | Lithium secondary battery The present invention provides a battery that experiences a small degree of temporal change from the initial battery properties over the long term storage period of the battery. Specifically, the present invention provides a lithium secondary battery, in which a pos... | 10/04/2011 |
| 7981552 | Lithium secondary battery and non-aqueous electrolytic solution The sudden generation of heat being frequently caused in the case of the overcharge of a lithium secondary cell which have a positive electrode comprising a composite metal oxide of lithium and cobalt or a composite metal oxide of lithium and nickel, a negative elec... | 07/19/2011 |
| 7923157 | Lithium secondary battery of improved high-temperature cycle life characteristics Disclosed is a lithium secondary battery comprising a cathode including a lithium-containing transition metal oxide, an anode including a carbon-based material, and a non-aqueous electrolyte with addition of a compound of formula (1). Incorporation of the compound (... | 04/12/2011 |
| 7862933 | Lithium secondary battery The present invention provides a lithium secondary battery which has improved safety, mainly coming from use of an electrolyte solution which is not inflammable at room temperature (20° C.), while not deteriorating output characteristics at low temperatures and roo... | 01/04/2011 |
| 7851093 | Nonaqueous electrolyte for secondary battery and secondary battery including the same A non-aqueous electrolyte for a secondary battery, including a non-aqueous solvent in which a solute is dissolved, a first additive and a second additive, wherein the first additive is a vinyl monomer having an electron donating group, the second additive is a carbo... | 12/14/2010 |
| 7799470 | Non-aqueous-electrolyte and lithium secondary battery using the same Disclosed are nonaqueous electrolyte additives, which can improve the safety of a battery upon overcharge of the battery without reducing the performance of the battery, as well as a nonaqueous electrolyte comprising the additives, and a lithium secondary battery co... | 09/21/2010 |
| 7709156 | Non-aqueous electrolyte secondary battery A non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material; and a non-aqueous electrolyte containing a non-aqueous solvent and an ele... | 05/04/2010 |
| 7691538 | Nonaqueous electrolyte secondary battery In a nonaqueous electrolyte secondary battery according to an embodiment of the invention, a nonaqueous electrolyte contains: a tertiary carboxylate ester represented by the following general formula (1) in an amount of a range of 3% by mass or more and 80% by mass ... | 04/06/2010 |
| 7655361 | Electrolyte for high voltage lithium rechargeable battery and high voltage lithium rechargeable battery employing the same Aspects of the present invention relate to an electrolyte for a high voltage lithium rechargeable battery and a high voltage lithium rechargeable battery employing the electrolyte, and more particularly to an electrolyte for a high voltage lithium rechargeable batte... | 02/02/2010 |
| 7494746 | Electrolyte for rechargeable lithium battery, and rechargeable lithium battery including same An electrolyte for a rechargeable lithium battery includes a compound represented by Formula 1, a lithium salt, and a non-aqueous organic solvent: A[OSi(CmH2m+1)3]3 (1) wherein A is P or B, and m i... | 02/24/2009 |
| 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 |
| 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 |
| 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 |
| 7410731 | Organic electrolytic solution and lithium battery employing the same An organic electrolytic solution and a lithium battery employing the same are provided. The organic electrolytic solution includes: a lithium salt; an organic solvent containing a high dielectric constant solvent and a low boiling point solvent; and a dicarboxylic a... | 08/12/2008 |
| 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 |
| 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 |
| 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 |
| 7381499 | Nonaqueous electrolyte battery A nonaqueous electrolyte battery whose electrolyte can be selected from a wider range of materials can be obtained. The nonaqueous electrolyte battery comprises a positive electrode, a negative electrode and a nonaqueous electrolytic solution. At least one of the po... | 06/03/2008 |
| 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 |
| 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 |
| 7351500 | Lithium-containing composite oxide and nonaqueous secondary cell using the same, and method for manufacturing the same Because of the composition represented by General Formula: Li1+x+αNi(1−x−y+δ)/2Mn(1−x−y−δ)/2MyO2 (where 0≦x≦0.05, −0.05≦x+α≦0.05, 0≦y≦0.4; −0.1≦δ≦0.1 (when 0≦y≦0.2) or −0... | 04/01/2008 |
| 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 |
| 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 |
| 7306880 | Electrolyte for a lithium ion battery and a lithium ion battery comprising the same An electrolyte for a lithium secondary battery comprises a non-aqueous organic solvent including 20 to 95 vol % of an ester-based or ether-based organic solvent based on the total amount of organic solvent; lithium salts; and an additive compound having at least two... | 12/11/2007 |
| 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 |
| 7295878 | Implantable devices using rechargeable zero-volt technology lithium-ion batteries An implantable medical device, such as an implantable pulse generator (IPG) used with a spinal cord stimulation (SCS) system, includes a rechargeable lithium-ion battery having an anode electrode with a substrate made substantially from titanium. Such battery constr... | 11/13/2007 |
| 7288920 | Method and apparatus for regulating charging of electrochemical cells A rechargeable electrochemical cell is provided having a pressure-responsive apparatus for determining a charge termination point. In particular, a reversible pressure-responsive switch may be disposed in a cap at the open end of a rechargeable metal hydride cell. T... | 10/30/2007 |
| 7279249 | Organic electrolytic solution and lithium battery employing the same An organic electrolytic solution containing an organic solvent and a compound that contains an anionic polymerization monomer with an added component capable of being chelated with a lithium metal cation. A lithium battery may utilize the organic electrolytic soluti... | 10/09/2007 |
| 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 |
| 7255779 | Indolecarboxylic ester trimer and electrochemical cell using the same The present invention provides a novel indole carboxylic ester trimer which is characterized by being represented by the following general formula (1): wherein R represents a straight or branched chain alkyl grou... | 08/14/2007 |
| 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 |
| 7247404 | Electrolyte for lithium secondary batteries and lithium secondary battery comprising the same An electrolyte in a lithium secondary battery includes an alkyl ammonium salt having a cation of the following Formula 1, a lithium salt, and an organic solvent: wherein R1 to R4 are indepen... | 07/24/2007 |
| 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 |
| 7238452 | Electrolyte for lithium battery and lithium battery comprising same An electrolyte for a lithium battery includes a non-aqueous organic solvent, lithium salts, and an additive compound of formula (1): where X is selected from the group consisting of an alkyl, an alkoxy, a halogen... | 07/03/2007 |
| 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 |
