Entries |
Document | Title | Date |
20080206651 | ANODE, METHOD OF MANUFACTURING IT, AND BATTERY - A battery having a high charge and discharge efficiency is provided. An anode being provided with an anode active material layer on an anode current collector, in which the anode active material layer contains silicon as an anode active material and includes a compound film having Si—O bond and Si—N bond on at least part of the surface of the anode active material layer. | 08-28-2008 |
20080241700 | Electrolyte for lithium rechargeable battery and lithium rechargeable battery comprising the same - An electrolyte for the lithium rechargeable battery including non-aqueous organic solvent, fluoroethylene carbonate, and halogen-substituted benzene phenyl ether, and the lithium rechargeable battery comprising the same. The lithium rechargeable battery can improve the overcharging property of the increase of temperature and voltage when overcharging the lithium rechargeable battery. Additionally, the battery capacity retention ratio can be increased. | 10-02-2008 |
20080292970 | ELECTROLYTIC SOLUTION AND BATTERY - A battery capable of improving cycle characteristics is provided. A separator arranged between a cathode and an anode is impregnated with an electrolytic solution. The electrolytic solution includes: a solvent; and an electrolytic salt, in which the solvent includes a compound having a difluoroalkene structure. The content of the compound having a difluoroalkene structure in the solvent is within a range from 1 wt % to 5 wt % both inclusive. | 11-27-2008 |
20090047582 | Non-Aqueous Electrolyte and Electrochemical Device With an Improved Safety - Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1. Moreover, disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product. In addition, disclosed is an electrochemical device comprising: an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product. | 02-19-2009 |
20090061325 | ANODE, METHOD OF MANUFACTURING SAME, SECONDARY BATTERY, AND METHOD OF MANUFACTURING SAME - A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode current collector, an anode active material layer that is provided on the anode current collector, and contains an anode active material containing at least one of a simple substance of silicon, an alloy of silicon, a compound of silicon, a simple substance of tin, an alloy of tin, and a compound of tin, and a coat that is provided on the anode active material layer, and contains an ionic polymer containing lithium. | 03-05-2009 |
20090081556 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode and a non-aqueous electrolyte. The negative electrode comprises a negative electrode active material to be alloyed with lithium and the non-aqueous electrolyte comprises a non-aqueous solvent containing fluorinated cyclic carbonate and propyl acetate. | 03-26-2009 |
20090142670 | ELECTROLYTIC SOLUTION AND LITHIUM BATTERY EMPLOYING THE SAME - Disclosed is an electrolytic solution including an organic solvent, a lithium salt, and an additive. The additive includes maleimide compound and vinylene carbonate. The maleimide compound can be maleimide, bismaleimide, polymaleimide, polybismaleimide, maleimide-bismaleimide copolymer, or combinations thereof. The lithium battery employing the described electrolytic solution has a higher capacity of confirmation, higher cycle efficiency, and longer operational lifespan. | 06-04-2009 |
20090148778 | ANODE, METHOD OF MANUFACTURING IT, AND BATTERY - A battery having a high charge and discharge efficiency in which a spirally wound electrode body having a lamination structure of a cathode, an anode | 06-11-2009 |
20090191464 | ORGANIC ELECTROLYTIC SOLUTION COMPRISING CYCLOOLEFIN MONOMER AND LITHIUM BATTERY EMPLOYING THE SAME - An organic electrolytic solution includes a lithium salt; an organic solvent containing a high dielectric constant solvent; and a polymerizable cycloolefin monomer, and an lithium battery employing the same. The organic electrolytic solution prevents decomposition of an electrolyte, and thus the lithium battery employing the organic electrolytic solution has improved cycle characteristics and lifetime. | 07-30-2009 |
20090233179 | ELECTROLYTIC SOLUTION AND SECONDARY BATTERY - A secondary battery capable of improving the cycle characteristics and the storage characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains a solvent contains a sulfone compound having a structure in which —S(═O) | 09-17-2009 |
20090317726 | ANODE AND SECONDARY BATTERY - A secondary battery capable of improving the cycle characteristics and the initial charge and discharge characteristics is provided. The secondary 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 a crystalline anode active material having silicon as an element, and is linked to the anode current collector. | 12-24-2009 |
20100021823 | 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 carbonic esters having an unsaturated bond, and at least one compound selected from the group consisting of sulfonic compounds and fluorine-containing aromatic compounds having 9 carbon atoms or less; and a lithium secondary battery employing the same. | 01-28-2010 |
20100028783 | ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME - An electrolyte for a lithium ion secondary battery and a lithium ion secondary battery comprising the electrolyte. The electrolyte comprises a non-aqueous organic solvent, a lithium salt, and at least one aromatic phosphate compound. Exothermic reactions are inhibited in the battery upon overcharge or during high-temperature storage to prevent an increase in the temperature of the battery, resulting in an improvement in safety. In addition, the battery exhibits good swelling stability during high-temperature storage as well as improved cycle life characteristics. The electrolyte further comprises an ethylene carbonate-based compound. The presence of the ethylene carbonate-based compound leads to further improvements in the overcharge safety, high-temperature safety and cycle life characteristics of the battery. | 02-04-2010 |
20100035160 | Non-Aqueous Electrolyte And Electrochemical Device Comprising The Same - Disclosed is a non-aqueous electrolyte comprising: a first acrylate compound having one or two acryl groups; a second acrylate compound having three or more acryl groups; an electrolyte salt; and an organic solvent. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of a first acrylate compound having one or two acryl groups; and (ii) a reduced form of a second acrylate compound having three or more acryl groups. Further, disclosed in an electrochemical device comprising a cathode, an anode, a separator and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the above non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the above electrode. | 02-11-2010 |
20100035161 | BATTERY AND ELECTRODE - An electrode includes: an electrode collector and an electrode active material layer, wherein a film containing a salt represented by the following formula (I) is provided on the electrode active material layer: | 02-11-2010 |
20100062344 | NON-AQUEOUS ELECTROLYTIC SOLUTION - There is provided a non-aqueous electrolytic solution comprising an electrolyte salt, a specific fluorine-containing solvent and a fluorine-containing cyclic carbonate represented by the formula (A1): | 03-11-2010 |
20100099031 | NONAQUEOUS ELECTROLYTES AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERIES EMPLOYING THE SAME - A subject is to provide a nonaqueous electrolyte excellent in cycle performances such as capacity retention after cycling, output after cycling, discharge capacity after cycling, and cycle discharge capacity ratio, output characteristics, high-temperature storability, low-temperature discharge characteristics, heavy-current discharge characteristics, high-temperature storability, safety, high capacity, high output, high-current-density cycle performances, compatibility of these performances, etc. Another subject is to provide a nonaqueous-electrolyte secondary battery employing the nonaqueous electrolyte. The subjects have been accomplished with a nonaqueous electrolyte which contains a monofluorophosphate and/or a difluorophosphate and further contains a compound having a specific chemical structure or specific properties. | 04-22-2010 |
20100129724 | RECHARGEABLE BATTERY WITH NEGATIVE LITHIUM ELECTRODE - There is disclosed rechargeable cell or battery comprising a negative electrode, a separator, a positive electrode and non-aqueous electrolyte. The negative electrode comprises at least one or more of metallic lithium, a lithium alloy or a material (compound) capable of intercalating lithium ions. At least the positive electrode and optionally also the electrolyte includes a redox shuttle additive to facilitate dissolution of dendritic lithium in the electrolyte. | 05-27-2010 |
20100136437 | NONAQUEOUS SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - A nonaqueous secondary battery having a negative electrode containing a silicon active material and a nonaqueous solvent containing a fluorine-containing solvent. The active material layer has a fluorine content of 5 to 30 wt % based on the silicon content after at least 100 charge/discharge cycles at a rate of 50% or more of the battery's capacity. The battery is suitably produced by a method including applying a slurry containing silicon active material particles to a current collector, electroplating the resulting coating layer using a plating bath at a pH higher than 7 to coat at least part of the surface of the particles with copper, acid washing the coating layer to make a negative electrode, assembling the negative electrode together with a positive electrode, a separator, and a nonaqueous electrolyte containing a fluorine-containing solvent into a nonaqueous secondary battery, and subjecting the battery to a first charge operation at a low rate of 0.005 to 0.03 C. | 06-03-2010 |
20100190064 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - The nonaqueous electrolyte secondary battery uses a positive electrode active material which is a mixture of large particle diameter-positive electrode active material particles having a central particle diameter D | 07-29-2010 |
20100216034 | SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein an open circuit voltage in a completely charged state per pair of a positive electrode and a negative electrode is from 4.25 to 6.00 V; and at least one member selected from the group consisting of sulfonic anhydrides represented by the following formulae (1) to (4) is contained in a nonaqueous electrolytic solution | 08-26-2010 |
20100233549 | Non-Aqueous Electrolyte and Electrochemical Device With an Improved Safety - Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 1-10 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic mono-nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between a surface of a cathode active material and an aliphatic mono-nitrile compound; and a non-aqueous electrolyte containing 1-10 wt % of a compound of Formula 1 or its decomposition product based on the weight of the electrolyte. The electrochemical device has an excellent low-temperature battery performance and an excellent high-temperature safety, by a synergic effect, and also can provide excellent. | 09-16-2010 |
20100248036 | Lithium Secondary Battery - A lithium secondary battery is intended to suppress deterioration upon storage at high temperature of 50° C. or higher without deteriorating the output characteristics at a room temperature. | 09-30-2010 |
20100266904 | NON-AQUEOUS ELECTROLYTE LITHIUM SECONDARY BATTERY - A lithium secondary battery has an anode, a cathode, a separator between the anode and the cathode and a non-aqueous electrolyte. The non-aqueous electrolyte includes a lithium salt; and a non-linear carbonate-based mixed organic solvent in which (a) a cyclic carbonate compound, and (b) a propionate-based compound are mixed at a volume ratio (a:b) in the range from about 10:90 to about 70:30. The cathode has a current density in the range from about 3.5 to about 5.5 mAh/cm2 and a porosity in the range from about 18 to about 35%. This battery may be manufactured as a high-loading lithium secondary battery. | 10-21-2010 |
20100310942 | ELECTROLYTE FOR NON-AQUEOUS CELL AND NON-AQUEOUS SECONDARY CELL - In a rechargeable non-aqueous electrolyte secondary battery using positive electrodes, negative electrodes and a non-aqueous electrolytic solution, additives to the electrolytic solution are used in combination, preferably in combination of at least two compounds selected from o-terphenyl, triphenylene, cyclohexylbenzene and biphenyl, and thus there are provided batteries excellent in safety and storage characteristics. | 12-09-2010 |
20110039163 | NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - Provided is a non-aqueous electrolyte capable of favorably suppressing the gas generation during storage in a high temperature environment and during charge/discharge cycling of a non-aqueous electrolyte secondary battery. The non-aqueous electrolyte includes a non-aqueous solvent and a solute dissolved in the non-aqueous solvent, wherein: the non-aqueous solvent includes ethylene carbonate, propylene carbonate, diethyl carbonate, and an additive; the additive includes a sultone compound and a cyclic carbonate having a C═C unsaturated bond; a weight percentage W | 02-17-2011 |
20110081582 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery including: a positive electrode including a nickel-based positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, a first fluoroethylene carbonate additive, a second vinylethylene carbonate additive, and a third alkane sultone additive, wherein when the battery is thicker than about 5 mm, a mixing weight ratio of the first fluoroethylene carbonate additive to the second vinylethylene carbonate additive ranges from about 5:1 to about 10:1, or when the battery is thinner than about 5 mm, the mixing weight ratio of the first fluoroethylene carbonate additive to the second vinylethylene carbonate additive ranges from about 1:1 to about 4:1. | 04-07-2011 |
20110117445 | ELECTROLYTES FOR LITHIUM AND LITHIUM-ION BATTERIES - The present invention provides an electrolyte for lithium and lithium-ion batteries comprising a lithium salt such as LiF | 05-19-2011 |
20110123872 | NON-AQUEOUS ELECTROLYTIC SOLUTION - There is provided a non-aqueous electrolytic solution assuring good solubility of an electrolyte salt and having enough cell characteristics (charge and discharge cycle characteristic, discharge capacity, and the like), and the non-aqueous electrolytic solution comprises a solvent for dissolving an electrolyte salt comprising (A) at least one fluorine-containing solvent selected from the group consisting of fluorine-containing ethers and fluorine-containing carbonates, (B) a non-fluorine-containing cyclic carbonate and (C) a chain ester represented by the formula (C): R | 05-26-2011 |
20110165472 | 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 (1) into the electrolyte significantly improves the high-temperature performance and cycle life characteristics of the battery. | 07-07-2011 |
20110223489 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A positive electrode active material of a nonaqueous electrolyte secondary battery is composed of lithium-cobalt composite oxide containing at least one of zirconium, titanium, aluminum, and erbium, and the nonaqueous electrolyte includes an additive expressed by General Formula (1) having an acetylene group and a methylsulfonyl group at each end of the molecule. It has the effect of forming an SEI surface film as with the case of VC or the like, as well as having a higher oxidation resistance than that of VC or the like. Thus the nonaqueous electrolyte secondary battery employing as positive electrode active material a lithium-cobalt composite oxide with a particular dissimilar metallic element added, in which decomposition of the nonaqueous electrolytic solution during storage at high temperature in a charged state is suppressed, and there is little battery swelling is provided. | 09-15-2011 |
20110229771 | NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY EMPLOYING THE SAME - A nonaqueous electrolyte which contains a nonaqueous organic solvent and a lithium salt dissolved therein is provided. Also provided is a lithium secondary battery employing the nonaqueous electrolyte. | 09-22-2011 |
20110236765 | NONAQUEOUS SOLVENT, AND NONAQUEOUS ELECTROLYTE SOLUTION AND NONAQUEOUS SECONDARY BATTERY THAT USE NONAQUEOUS SOLVENT - The nonaqueous solvent for a nonaqueous secondary battery of the present invention includes: a fluorinated cyclic carbonate having at least one fluorine in each designated location in the molecule; and a fluorinated phosphazene having at least one fluorine bound to a phosphorus atom in the phosphazene molecule and a ratio of the number of fluorine atoms to the number of phosphorus atoms being 4/3 or more. The fluorinated cyclic carbonate forms a good protective coat by reductive decomposition at a negative electrode, thereby improving cycle characteristics of the nonaqueous secondary battery. The fluorinated phosphazene suppresses generation of organic ions in the nonaqueous solvent, thereby reducing gas production in the nonaqueous secondary battery. | 09-29-2011 |
20110281177 | NONAQUEOUS ELECTROLYTE SOLVENTS AND ADDITIVES - A series of polar and aprotic organic molecules, which, when used as solvents or additives in nonaqueous electrolytes, afford improved performance for electrochemical cells that operate at high voltages. These polar and aprotic solvents or additives may contain at least one unsaturated functionality per molecule. The unsaturated functionality is conjugated with the polar functionality of the molecule. The unsaturated functionality that is either a double or triple bond could be between carbon-carbon, or between carbon-heteroatom, or between hetroatom-heteroatom. Nonaqueous electrolyte solutions are provided comprising one or more lithium salts dissolved in the mixture solvents, which comprises, in all possible ratios, at least one of the polar, aprotic and unsaturated solvent or additives, one or more cyclic carbonic diesters such as ethylene carbonate, and one or more acyclic carbonic diesters such as dimethyl carbonate, diethyl carbonate, and ethylmethyl carbonate. | 11-17-2011 |
20110300453 | NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING SAME - A non-aqueous electrolyte solution is provided that realizes a large capacity, exhibits high storage characteristics and cycle characteristics, and is capable of inhibiting gas generation. | 12-08-2011 |
20120107697 | Electrolyte for lithium ion battery, and lithium ion battery including same - An electrolyte for a lithium ion battery includes a non-aqueous organic solvent and a lithium salt. The non-aqueous organic solvent includes a flame-retardant solvent and a carbonate-based solvent. The flame-retardant solvent includes an ionic liquid including a fluorinated cation and a phosphorus-based solvent. | 05-03-2012 |
20120315548 | LITHIUM SECONDARY BATTERY - Disclosed is a lithium secondary battery including: a positive electrode, a negative electrode including an alloy-type material, and a non-aqueous electrolyte with lithium ion conductivity. The non-aqueous electrolyte includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent. The non-aqueous solvent contains a carbonic acid ester, and a sulfinyl compound represented by the general formula (1): R | 12-13-2012 |
20130164633 | Nonaqueous Electrolyte Battery and Battery Pack - A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode contains active material particles and a coating material. The active material particles are represented by any one of the following formulae (1) to (3): | 06-27-2013 |
20130209894 | ORGANIC ELECTROLYTE FOR MAGNESIUM BATTERIES AND MAGNESIUM BATTERY USING THE ORGANIC ELECTROLYTE - An organic electrolyte for magnesium batteries including an ether solvent; a magnesium compound represented by Formula 1 dissolved in the ether solvent; and a Lewis acid: | 08-15-2013 |
20140017573 | NON-AQUEOUS ELECTROLYTE ADDITIVE, NON-AQUEOUS ELECTROLYTLE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes a phosphazene compound represented by the following general formula (1): | 01-16-2014 |
20140023934 | NON-AQUEOUS ELECTROLYTE ADDITIVE, NON-AQUEOUS ELECTROLYTE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention relates to a non-aqueous electrolyte additive that allows for improved safety and battery characteristics of a non-aqueous electrolyte secondary battery, and in greater detail, the present invention relates to a non-aqueous electrolyte additive that includes at least one compound selected from a first compound group consisting of phosphazene compounds represented by the following general formula (1): | 01-23-2014 |
20140030610 | NON-AQUEOUS ELECTROLYTE SOLUTION AND ELECTRICITY-STORAGE DEVICE USING SAME - The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics at high temperatures, which comprises at least one organic phosphorus compound represented by the following general formula (I), an energy storage device using the nonaqueous electrolytic solution, and a specific organic phosphorus compound. | 01-30-2014 |
20140038059 | NON-AQUEOUS ELECTROLYTIC SOLUTIONS AND ELECTROCHEMICAL CELLS COMPRISING THE SAME - A non-aqueous electrolytic solution for use in a lithium secondary battery has reduced or eliminated flammability and increased capacity retention. The electrolytic solution includes a lithium salt, a carbonate, a substituted phosphazene, a fluorinated solvent such as fluorinated carbonate, fluorinated ether, and fluorinated ester, and an organic phosphate or organic phosphonate such as fluorinated alkyl phosphate, fluorinated aromatic phosphate, fluorinated alkyl phosphonate, or fluorinated aromatic phosphonate. | 02-06-2014 |
20140038060 | NONAQUEOUS ELECTROLYTE SOLUTION, ELECTRICITY STORAGE DEVICE USING SAME, AND TRIFLUOROMETHYLBENZENE COMPOUND - The present invention is to provide a nonaqueous electrolytic solution capable of enhancing electrochemical characteristics in a broad temperature range, an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound. There are provided a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which comprises at least one halogenoalkylbenzene compound represented by the following general formula (I), an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound. | 02-06-2014 |
20140045076 | NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte solution for a secondary battery, the nonaqueous electrolyte solution containing an electrolyte, a solvent, and an additive, in which the additive contains a compound represented by formula (1) below, and the content of the compound is 0.01 to 10 parts by mass relative to 100 parts by mass of the total of the solvent. A nonaqueous electrolyte secondary battery employing the nonaqueous electrolyte solution is also disclosed. | 02-13-2014 |
20140093787 | NON-AQUEOUS ELECTROLYTIC SOLUTION, ELECTRICAL STORAGE DEVICE UTILIZING SAME, AND CYCLIC SULFONIC ACID ESTER COMPOUND - An object of the present invention is to provide a nonaqueous electrolytic solution capable of improving electrochemical characteristics in a broad temperature range, an energy storage device using it. | 04-03-2014 |
20140199600 | NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY AND SECONDARY BATTERY - The present invention provides a nonaqueous electrolyte solution, which can improve flame retardancy and ameliorate performances of a battery without deteriorating the basic battery performance as far as possible, and a secondary battery. The nonaqueous electrolyte solution is a nonaqueous electrolyte solution for a secondary battery that contains metal salts including ions of metals belonging to group 1 or 2 of the periodic table and a specific cyclic compound having phosphorus and nitrogen atoms in a non-protonic solvent. The non-protonic solvent is a solvent that contains at least one kind of carboxylic acid ester compound and carbonic acid ester compound, and a ratio (M | 07-17-2014 |
20140212769 | NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode contains active material particles and a coating material. The active material particles are represented by any one of the following formulae (1) to (3): | 07-31-2014 |
20150010831 | LITHIUM SECONDARY BATTERY - A lithium secondary battery including a positive electrode including a positive electrode active material capable of intercalating and deintercalating lithium ions, a negative electrode including a negative electrode active material capable of intercalating and deintercalating lithium ions, and a nonaqueous electrolytic solution, wherein the positive electrode active material includes an active material capable of intercalating or deintercalating lithium ions at a potential of 4.5 V or more, and the nonaqueous electrolytic solution includes a particular fluorine-containing ether compound. | 01-08-2015 |
20150030939 | CONDUCTIVE SALT FOR LITHIUM-BASED ENERGY STORES - The invention relates to the use of lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate as a conductive salt in lithium-based energy stores and to electrolytes containing lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate. | 01-29-2015 |
20150050560 | SILICONE EPOXY ETHER COMPOSITIONS, METHODS FOR MAKING SAME AND USES THEREFOR - The present invention relates to silicone epoxy compositions, methods for making same and uses therefore. In one embodiment, the silicone epoxy ether compositions of the present invention are silane epoxy polyethers that contain at least one epoxy functionality. In another embodiment, the silicone epoxy ether compositions of the present invention are siloxane epoxy polyethers that contain at least one epoxy functionality. In still another embodiment, the present invention relates to silicone epoxy polyether compositions that are suitable for use as an electrolyte solvent in a lithium-based battery, an electrochemical super-capacitors or any other electrochemical device. | 02-19-2015 |
20150140443 | LITHIUM SECONDARY BATTERY - The present invention relates to a secondary battery cg a positive electrode capable of absorbing and releasing lithium, and a electrolyte solution containing a non-aqueous electrolytic solvent, wherein the positive electrode has a positive electrode active material which operates at 4.5 V or more relative to lithium, and wherein the non-aqueous electrolytic solvent contains a sulfone compound represented by a predetermined formula and a fluorinated ether compound represented by a predetermined formula. | 05-21-2015 |
20150295275 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - An electrolyte for a rechargeable lithium battery includes a lithium salt, an organic solvent and an additive. The organic solvent includes a sulfur-containing compound represented by Chemical Formula 1, and the additive includes a phosphazene compound represented by Chemical Formula 2. A rechargeable lithium battery including the electrolyte may have improved performance and safety. | 10-15-2015 |
20150311566 | ELECTROLYTE AND SECONDARY BATTERY - Secondary batteries capable of improving cycle characteristics are provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. A separator provided between the cathode and the anode is impregnated with the electrolytic solution. The electrolytic solution contains a solvent and an electrolyte salt. The solvent contains a cyclic compound having a disulfonic acid anhydride group (—S(═O) | 10-29-2015 |
20150318577 | SECONDARY BATTERY - The present invention relates to an electrolyte solution for a lithium secondary battery, which contains a sulfonate compound represented by a specific formula and carboxylic anhydride having one or more C═C double bonds, and a lithium secondary battery using the same. | 11-05-2015 |
20160013518 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME | 01-14-2016 |
20160049693 | ELECTROLYTES FOR RECHARGEABLE BATTERIES - Provided are novel electrolytes for use in rechargeable lithium ion cells containing high capacity active materials, such as silicon, germanium, tin, and/or aluminum. These novel electrolytes include one or more pyrocarbonates and, in certain embodiments, one or more fluorinated carbonates. For example, dimethyl pyrocarbonate (DMPC) may be combine with mono-fluoroethylene carbonate (FEC). Alternatively, DMPC or other pyrocarbonates may be used without any fluorinated carbonates. A weight ratio of pyrocarbonates may be between about 0% and 50%, for example, about 10%. Pyrocarbonates may be combined with other solvents, such as ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), and/or ethyl-methyl carbonate (EMC). Alternatively, pyrocarbonates may be used without such solvents. Experimental results conducted using electrochemical cells with silicon based electrodes demonstrated substantial improvements in cycle life when pyrocarbonate containing electrolytes were used in comparison with pyrocarbonate free electrolytes. | 02-18-2016 |
20160204472 | ELECTROLYTIC SOLUTION AND BATTERY | 07-14-2016 |