Class / Patent application number | Description | Number of patent applications / Date published |
429343000 | Acyclic carboxylic acid ester solvent | 11 |
20090136855 | ANODE, BATTERY, AND METHODS OF MANUFACTURING THEM - 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 electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has a coat on an anode active material layer provided on an anode current collector. The coat contains a metal salt. The metal salt has a hydroxyl group and at least one of a sulfonic acid group and a carboxylic acid group. Thereby, lithium ions are easily inserted in the anode and extracted from the anode, and decomposition of the electrolytic solution is prevented. | 05-28-2009 |
20090170007 | NON-AQUEOUS ELECTROLYTE SECONDARY CELL - A non-aqueous electrolyte secondary cell is provided having enhanced safety against overcharge and reduced self-discharge. The non-aqueous electrolyte secondary cell includes: a positive electrode having a positive electrode active material; a negative electrode having a negative electrode active material; and a non-aqueous electrolyte containing a non-aqueous solvent and electrolytic salt. The non-aqueous solvent contains 20 to 80 volume % tertiary carboxylic acid ester represented by formula 1 at 25° C. and 1 atm. The non-aqueous electrolyte contains an alkylbenzene compound and/or a halogenated benzene compound. | 07-02-2009 |
20100035162 | NON-AQUEOUS ELECTROLYTE FOR SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery comprising a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, wherein the non-aqueous electrolyte comprises a non-aqueous solvent and lithium salt as an electrolyte, and wherein the non-aqueous solvent contains chain fluorinated carboxylic acid ester represented by the formula CH | 02-11-2010 |
20110045361 | NONAQUEOUS ELECTROLYTE FOR LITHIUM BATTERY AND LITHIUM BATTERY USING SAME - A nonaqueous electrolytic solution for lithium battery comprises an electrolyte salt dissolved in a nonaqueous solvent and contains a carboxylate compound represented by the following general formula (I) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution. | 02-24-2011 |
20110207000 | Nitrile additive for non-aqueous electrolyte rechargeable electrochemical cells - An electrochemical system is provided by the present invention which includes a positive electrode; a negative electrode; an electrolyte containing a lithium salt dissolved in a non-aqueous solvent; and a nitrile component in the electrolyte. A preferred nitrile component is an aromatic nitrile. Also described is a process for inhibiting electrolyte decomposition wherein an initial cycle is performed on an inventive electrochemical system such that a solid-electrolyte interphase forms on the anode, inhibiting electrolyte decomposition. | 08-25-2011 |
20110269028 | NON-AQUEOUS ELECTROLYTE SECONDARY CELL WITH IMPROVED SAFETY - A non-aqueous electrolyte secondary cell is provided having enhanced safety against overcharge and reduced self-discharge. The non-aqueous electrolyte secondary cell includes: a positive electrode having a positive electrode active material; a negative electrode having a negative electrode active material; and a non-aqueous electrolyte containing a non-aqueous solvent and electrolytic salt. The non-aqueous solvent contains 20 to 80 volume % tertiary carboxylic acid ester represented by Formula 2 at 25° C. and 1 atm. The non-aqueous electrolyte contains a halogenated benzene compound. | 11-03-2011 |
20140065493 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a non-aqueous electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the non-aqueous electrolyte, and the non-aqueous electrolyte for a rechargeable lithium battery includes a lithium salt; a non-aqueous organic solvent; and trialkylsilyl borate as an additive, wherein he non-aqueous organic solvent may include a solvent having a low melting point of less than or equal to about −50° C. and ionic conductivity of greater than or equal to about 6 S/cm at 25° C. | 03-06-2014 |
20150111112 | FLUORINE-CONTAINING ESTERS AND METHODS OF PREPARATION THEREOF - A method for preparing fluorine-containing carboxylic acid esters is described in which a salt of a carboxylic acid is reacted with a fluorinated alkyl halide. The fluorine-containing carboxylic acid esters prepared by the method disclosed herein are particularly useful as electrolyte solvents for electrochemical cells, such as a lithium ion battery, where a high purity solvent is desired. | 04-23-2015 |
20150380769 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery as an example of an embodiment of the present disclosure includes a positive electrode, a negative electrode, and a nonaqueous electrolyte containing a nonaqueous solvent including fluoromethyl propionate. The lithium fluoride (LiF) adheres to a surface of the positive electrode and sulfur (S) compound adheres to a surface of the negative electrode and a proportion of fluorinated solvent is 55% by weight or more to a total weight of the nonaqueous solvent. | 12-31-2015 |
20160056507 | Electrolyte for Lithium Cell - An electrolyte, an electrolyte solvent, and an electrolyte additive, in particular for a lithium cell, include at least one ether. The at least one ether has at least one of the general chemical formula: R11R12R13C—(CR14R15)x1-[O—(CR31R32)a-(CR33R34)b]c-O—(CR24R25)x2-CR21R22R23 and of the general chemical formula: R41R42R43C—(CR44R45)y1-O—(CR54R55)y2-CR51R52R53. | 02-25-2016 |
20160118691 | LITHIUM SECONDARY BATTERY - A lithium secondary battery includes a thick-film negative electrode having a current density of about 4.0 mA/cm | 04-28-2016 |