Entries |
Document | Title | Date |
20080206650 | Rechargeable lithium battery - A rechargeable lithium battery includes a positive electrode including a positive active material being capable of intercalating and deintercalating lithium ions; a negative electrode including a negative active material being capable of intercalating and deintercalating lithium ions; and an electrolyte including a non-aqueous organic solvent and a lithium salt. The positive electrode has a positive active mass density of 3.65 g/cc or more, and the lithium salt includes lithium hexafluorophosphate (LiPF | 08-28-2008 |
20080241699 | Lithium-Ion Battery Electrolytes - A rechargeable lithium-ion battery includes an anode, a cathode and an electrolyte containing one or more dispersed lithium salts. The electrolyte is composed of one or more solvent materials. A principal solvent constituent compound is at least one of γ-valerolactone, methyl isobutyryl acetate, 2-methoxyethyl acetate, 2-ethoxyethyl acetate, and diethyl oxalate. | 10-02-2008 |
20080305401 | Lithium-ion electrolytes with fluoroester co-solvents - An embodiment lithium-ion battery comprising a lithium-ion electrolyte of ethylene carbonate; ethyl methyl carbonate; and at least one solvent selected from the group consisting of trifluoroethyl butyrate, ethyl trifluoroacetate, trifluoroethyl acetate, methyl pentafluoropropionate, and 2,2,2-trifluoroethyl propionate. Other embodiments are described and claimed. | 12-11-2008 |
20090023074 | Nonaqueous electrolyte solution, and electrochemical energy-storing device and nonaqueous-electrolyte- solution secondary battery using the same - A nonaqueous electrolyte solution being liquid at normal temperature, comprising (A) 1,2-dialkoxyethane represented by Formula: R—O—CH | 01-22-2009 |
20090023075 | Nonaqueous electrolyte including Diphenyl ether and lithium secondary battery using thereof - A non-aqueous electrolyte for a lithium secondary battery includes a lithium salt, a basic organic solvent including a carbonate-based solvent, and a halogenated diphenyl ether compound represented by Formula 1: | 01-22-2009 |
20090042103 | ADDITIVE MIXTURE FOR ELECTROLYTE OF LITHIUM ION SECONDARY BATTERY AND ELECTROLYTE OF LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME - An additive mixture of the electrolyte of lithium ion secondary batteries and the electrolyte of lithium ion secondary batteries including the said additive mixture, characterizing in that the additive mixture includes 0.5-95.4 wt % biphenyl based compound, 0.1-93.8 wt % cyclohexylbenzene based compound, 0.4-93.2 wt % vinylene carbonate, 0.5-96.5 wt % t-alkyl benzene based compound and 0.5-95.8 wt % ethenyl sulfonyl benzene, based on the whole weight of the additive mixture. | 02-12-2009 |
20090111030 | POWER STORAGE DEVICE - A power storage device of the present invention includes a positive electrode, a negative electrode, and an electrolyte. At least one of the positive electrode and the negative electrode includes an organic compound as an active material having a portion contributing to an oxidation-reduction reaction. The organic compound is crystalline in both a charged state and a discharged state. | 04-30-2009 |
20090130565 | Non-aqueous electrolyte and electrochemical energy storage device using the same - A non-aqueous electrolyte of the present invention contains a lithium salt (A), a quaternary ammonium salt (B) containing a straight chain alkyl group having carbon atoms of 4 or less and a solvent (C) composed of at least one compound selected from the group consisting of ethylene carbonate, propylene carbonate, butylene carbonate, γ-butyrolactone, dimethyl carbonate, ethyl methyl carbonate, diethyl carbonate, dimethoxyethane, ethoxymethoxyethane and diethoxyethane. The molar ratio C/A of the solvent (C) to the lithium salt (A) or the molar ratio C/B of the solvent (C) to the ammonium salt (B) is 6 or less. The non-aqueous electrolyte has a single phase. Consequently, there can be obtained a non-aqueous electrolyte of a high ion concentration having an excellent oxidation resistance and reduction resistance. | 05-21-2009 |
20090155695 | Non-Aqueous Electrolyte and a Lithium Secondary Battery Comprising the Same - Disclosed is an electrolyte of a lithium secondary battery comprising a lithium salt, an organic solvent, and at least one additive compound selected from the group consisting of compounds represented by the following formula (1) and derivatives thereof: | 06-18-2009 |
20090170006 | NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING SAME - The present invention provides a nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, containing 0.01% to 30% by weight of a 1,2-cyclohexanediol derivative having a specific structure; and a lithium secondary battery using the nonaqueous electrolytic solution. The lithium secondary battery exhibits excellent battery characteristics such as electrical capacity, cycle property, and storage property and can maintain excellent long-term battery performance. | 07-02-2009 |
20090233178 | LITHIUM-ION BATTERIES - The present invention is based on the discovery that certain types of synthetic graphite exhibit superior rate capabilities when used in batteries or cells employing lithium metal phosphate cathodes. Additionally, it has been found that the use of dimethyl carbonate and/or ethyl methyl carbonate in the electrolyte when used in such graphite/lithium methyl phosphate batteries or cells facilitates the discharge reactions on both the cathode and the anode and in particular especially improves the rate capability of the graphite anode. | 09-17-2009 |
20090246641 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery of the present invention includes a positive electrode including an active material absorbing and desorbing lithium ions, a negative electrode including an active material absorbing and desorbing lithium ions, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The separator includes a material containing a substituent group with electron-withdrawing property. The non-aqueous electrolyte includes a non-aqueous solvent and a solute dissolved therein, and the non-aqueous solvent includes at least one selected from the group consisting of a fluorine-containing aromatic solvent, a fluorine-containing cyclic carbonic acid ester, and a fluorine-containing cyclic carboxylic acid ester. | 10-01-2009 |
20090253044 | Nonaqueous Electrolyte and Lithium ion Secondary Battery Using Same - Obtained are a nonaqueous electrolyte solution suitable for a lithium secondary battery having a high energy density, wherein a decrease in the capacity due to charge/discharge cycles is remarkably small and no gas is generated when charging or storing the battery; and a lithium secondary battery using the same. This nonaqueous electrolyte solution is a solution containing a nonaqueous solvent, the nonaqueous solvent containing a fluorinated solvent including a linear fluorinated carbonate (a1) and a fluorinated ethylene carbonate (a2), and the total amount of the fluorinated solvent in the nonaqueous solvent is in the range of from 50 to 100 weight %. | 10-08-2009 |
20090253045 | NONAQUEOUS ELECTROLYTIC SOLUTIONS AND NONAQUEOUS-ELECTROLYTE BATTERIES - Nonaqueous electrolytes capable of providing a battery having a high capacity and excellent in storability and cycle characteristics are provided. Also provided are nonaqueous-electrolyte batteries produced with the electrolytes. The nonaqueous electrolytes include ones which (1) contains a cyclic carbonate having an unsaturated bond and further contains a fluorinated cyclic carbonate having two or more fluorine atoms, (2) contains an aromatic compound having 7-18 carbon atoms in total and further contains a fluorinated cyclic carbonate having two or more fluorine atoms, (3) contains diethyl carbonate and further contains a fluorinated cyclic carbonate having two or more fluorine atoms, or (4) contains at least one compound selected from the group consisting of cyclic sulfonic acid ester compounds, di-sulfonic acid ester compounds, nitrile compounds, and compounds represented by general formula (1) and further contains a fluorinated cyclic carbonate having two or more fluorine atoms. The electrolytes further include (5) a nonaqueous electrolyte characterized by being an electrolytic solution for use in a high-voltage battery having a final charge voltage of 4.3 V or higher and containing a fluorinated cyclic carbonate having two or more fluorine atoms. | 10-08-2009 |
20090253046 | LITHIUM ION ELECTROLYTES AND LITHIUM ION CELLS WITH GOOD LOW TEMPERATURE PERFORMANCE - There is provided in one embodiment of the invention an electrolyte for use in a lithium ion electrochemical cell. The electrolyte comprises a mixture of an ethylene carbonate (EC), an ethyl methyl carbonate (EMC), an ester cosolvent, and a lithium salt. The ester cosolvent comprises methyl propionate (MP), ethyl propionate (EP), methyl butyrate (MB), ethyl butyrate (EB), propyl butyrate (PB), or butyl butyrate (BB). The electrochemical cell operates in a temperature range of from about −60 degrees Celsius to about 60 degrees Celsius. In another embodiment there is provided a lithium ion electrochemical cell using the electrolyte of the invention. | 10-08-2009 |
20090253047 | Electrochemical Cell - An electrochemical cell comprises as an anode, a lithium transition metal oxide or sulphide compound which as a [B | 10-08-2009 |
20090317725 | Lithium cell with cathode containing iron disulfide - A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS | 12-24-2009 |
20090325076 | NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is produced using a non-aqueous electrolyte including: a non-aqueous solvent that primarily contains a solvent mixture of ethylene carbonate and propylene carbonate and includes a fluorine-substituted ether having a divalent group represented by a formula: —CFX—CH(CH | 12-31-2009 |
20100092871 | BINDER FOR AN ELECTRODE OF AN ELECTROCHEMICAL SYSTEM, ELECTRODE COMPRISING THIS BINDER, AND ELECTROCHEMICAL SYSTEM COMPRISING THIS ELECTRODE - Binder for an electrode of an electrochemical system having a non-aqueous electrolyte, said binder comprising a first polymer which has functional groups capable of reacting with a crosslinking agent and is crosslinked with said crosslinking agent, the crosslinked first polymer forming a three-dimensional network in which a second polymer chosen from fluoropolymers is imprisoned. | 04-15-2010 |
20100104949 | Electrolyte and rechargeable lithium battery - Disclosed is a rechargeable lithium battery including a positive electrode and a negative electrode in which lithium intercalations occurs, and an electrolyte including a low-inflammability solvent with a heat of combustion of 19,000 kJ/kg or less, and a lithium salt. | 04-29-2010 |
20100209780 | HIGH VOLTAGE ELECTROLYTE (Muldoon, Allred) - A battery that includes a cathode, anode and an electrolytic solution containing an organic electrolyte solvent including a compound of the formula: R | 08-19-2010 |
20100221615 | NON-AQUEOUS SECONDARY BATTERY - A non-aqueous secondary battery contains a positive electrode, a negative electrode, a separator and a non-aqueous electrolytic solution. The positive electrode contains a layered structure lithium-containing compound oxide, or a spinel lithium-containing compound oxide containing manganese as an active material. The non-aqueous electrolytic solution contains at least one additive selected from a sulfonic acid anhydride, a sulfonate ester derivative, a cyclic sulfate derivative and a cyclic sulfonate ester derivative, and a vinylene carbonate or a derivative of the vinylene carbonate. | 09-02-2010 |
20100255384 | Nonaqueous electrolyte secondary battery - A nonaqueous electrolyte secondary battery including a negative electrode containing a graphite material as the negative active material, a positive electrode containing lithium cobalt oxide as a main component of the positive active material and a nonaqueous electrolyte solution, the battery being characterized in that the lithium cobalt oxide contains a group IVA element selected from the group consisting of Ti, Zr and Hf and a group IIA element of the periodic table, the nonaqueous electrolyte solution contains 0.2-1.5% by weight of a sulfonyl-containing compound and preferably further contains 0.5-4% by weight of vinylene carbonate. | 10-07-2010 |
20100261068 | NON-AQUEOUS ELECTROLYTE AND ELECTROCHEMICAL DEVICE HAVING THE SAME - A non-aqueous electrolyte includes (i) a compound having an S═O group; (ii) a mixed organic solvent containing a carbonate and an ester compound; and (iii) an electrolyte salt, wherein the compound having an S═O group is at least one compound selected from the group consisting of cyclic sulfite, saturated sultone, unsaturated sultone, and non-cyclic sulfone. Also, an electrochemical device includes a cathode, an anode and the above non-aqueous electrolyte. | 10-14-2010 |
20100273064 | NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY HAVING THE SAME - A non-aqueous electrolyte includes (i) a cyclic anhydride; (ii) an electrolyte solvent containing carbonate and linear saturated ester; and (iii) an electrolyte salt. Since the linear saturated ester and cyclic anhydride are used in mixture as components of an electrolyte, it is possible to minimize problems caused by using either of the linear saturated ester or cyclic anhydride and to improve life cycle performance of the secondary battery and charging/discharging characteristics at room temperature or a high temperature. | 10-28-2010 |
20100304224 | NONAQUEOUS ELECTROLYTIC SOLUTION, POSITIVE ELECTRODE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolytic solution includes an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolyte solution contains at least one compound selected from the group consisting of a chain compound having a hydroxyl group and a carbon-carbon double bond, a light metal alkoxide thereof and a derivative thereof obtained by substituting the hydroxyl group with a protective group. | 12-02-2010 |
20110027663 | NONAQUEOUS ELECTROLYTE BATTERY - An additive typified by tris(trimethylsilyl)phosphate, tris(trimethylsilyl)borate, and tetrakis(trimethylsiloxy)titanium (Chem. 3) are applied to a nonaqueous electrolyte containing a chain carbonate and/or a chain carboxylate as a main solvent (contained at a ratio of 70 volume % or higher). It is preferable that 0≦a<30 is satisfied, in which “a” denotes the volume of a cyclic carbonate among carbonates having no carbon-carbon double bond in the entire volume, defined as 100, of the carbonates having no carbon-carbon double bond and chain carboxylates in a nonaqueous solvent contained in the nonaqueous electrolyte (0 | 02-03-2011 |
20110045358 | NON-AQUEOUS ELECTROLYTE FOR A LITHIUM BATTERY AND LITHIUM BATTERY INCLUDING THE SAME - A non-aqueous electrolyte for a lithium battery includes a non-aqueous organic solvent, the organic solvent including one or more of a carbonate-based solvent, an ester-based solvent, an ether-based solvent, and/or a ketone-based solvent, a lithium salt, and a hexafluoroacetylacetone in an amount of about 0.02 parts by weight to about 10 parts by weight, based on 100 parts by weight of the non-aqueous organic solvent. | 02-24-2011 |
20110059370 | ELECTROLYTIC SOLUTION FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE ELECTROLYTIC SOLUTION - Provided are an electrolytic solution for a nonaqueous electrolyte secondary battery and a nonaqueous electrolyte secondary battery each of which not only has heat resistance enough to resist reflow soldering but also can maintain the discharge capacity of the battery even in a low-temperature environment. The nonaqueous electrolyte secondary battery is provided with an electrolytic solution | 03-10-2011 |
20110076571 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery is prevented from decreasing the remaining capacity and returned capacity at the time of continuous charge at high voltages and high temperatures. The battery has positive and negative electrodes, and a nonaqueous electrolytic solution containing ethylene carbonate and fluoroethylene carbonate as a solvent. The positive electrode contains a positive-electrode active material with the fine particles of a rare earth element compound deposited on its surface in a dispersed state. | 03-31-2011 |
20110081581 | ORGANIC ELECTROLYTIC SOLUTION WITH SURFACTANT 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 first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant including a hydrophobic portion having an aromatic group. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode, thereby suppressing side reactions on the anode surface and improving discharge capacity, charge/discharge efficiency, lifespan, and battery reliability. | 04-07-2011 |
20110111305 | NON-AQUEOUS ELECTROLYTE LITHIUM SECONDARY BATTERY - A non-aqueous electrolyte includes (i) an inhibitor against a reaction between an anode and a linear ester; (ii) a mixed organic solvent containing cyclic carbonate and the linear ester; and (iii) an electrolyte salt, wherein the inhibitor is any one compound or a mixture of at least two compounds selected from the group consisting of cyclic carbonate with a vinyl group, fluorinated ethylene carbonate, vinylene carbonate, cyclic acid anhydride, a compound having a cyclic S═O group and an acrylate-based compound. Also, an electrochemical device includes a cathode, an anode and the above non-aqueous electrolyte. | 05-12-2011 |
20110111306 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY HAVING THE SAME - A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and an organic solvent. Based on 100 parts by weight of the non-aqueous electrolyte solution, the non-aqueous electrolyte solution includes 1 to 5 parts by weight of sultone-based compound having a carbon-carbon unsaturated bond in a cyclic structure; 1 to 5 parts by weight of cyclic carbonate compound with a vinyl group; 5 to 10 parts by weight of cyclic carbonate compound that is substituted with halogen; and 1 to 5 parts by weight of dinitrile-based compound. This non-aqueous electrolyte solution improves stability of a SEI film formed on a surface of an anode of a lithium secondary battery and thus improves normal temperature cycle performance and high temperature cycle performance. | 05-12-2011 |
20110123870 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - An electrolyte for a rechargeable lithium battery, including a lithium salt, an organic solvent, lithium bis(oxalato)borate (LiBOB), and at least one kind of tris(trialkylsilyl)borate represented by following Chemical Formula 1. | 05-26-2011 |
20110123871 | NONAQUEOUS ELECTROLYTIC SOLUTION AND NONAQUEOUS-ELECTROLYTE BATTERY - Disclosed is a nonaqueous electrolytic solution which enables formation of a nonaqueous-electrolyte battery having high capacity and excellent storage characteristics at high temperatures, while sufficiently enhancing safety at the time of overcharge. A nonaqueous-electrolyte battery produced by using the nonaqueous electrolytic solution is also disclosed. The nonaqueous electrolytic solution comprises an electrolyte and a nonaqueous solvent, and includes any of specific nonaqueous electrolytic solutions (A) to (D). | 05-26-2011 |
20110151337 | ELECTROLYTE FOR LITHIUM BATTERY AND LITHIUM BATTERY COMPRISING SAME - An electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive comprising a) a compound represented by the following Formula (1), and b) a compound selected from the group consisting of a sulfone-based compound, a poly(ester)(metha)acrylate, a polymer of poly(ester)(metha)acrylate, and a mixture thereof: | 06-23-2011 |
20110151338 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention is made to improve charge-discharge cycle performances under high temperature environment in a non-aqueous electrolyte secondary battery using a negative electrode containing a negative electrode active material of particulate silicon and/or silicon alloy and a binding agent. | 06-23-2011 |
20110159379 | SECONDARY BATTERY - An object of this invention is to provide a highly safe secondary battery employing a non-flammable electrolyte solution. The secondary battery has a positive pole comprising an oxide for storing and releasing lithium ions, a negative pole comprising a carbon material for storing and releasing lithium ions, and an electrolyte solution. The electrolyte solution comprises 1.5 mol/L or more of a lithium salt, or 1.0 mol/L or more of a lithium salt and 20% by volume or more of a phosphate ester derivative. | 06-30-2011 |
20110195316 | LITHIUM BATTERY - Disclosed is a lithium battery including: a positive electrode including manganese dioxide as a positive electrode active material; a negative electrode including at least one selected from lithium metal and a lithium alloy, as a negative electrode active material; a porous insulating member interposed between the positive electrode and the negative electrode; and an organic electrolyte. The organic electrolyte contains 0.0008 to 1.2% by weight of an alkyl ester of an aliphatic hydroxycarboxylic acid. The alkyl ester may be a C | 08-11-2011 |
20110206997 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and an organic solvent and further includes a solvent having a fluoro group and a specific siloxane compound. A lithium secondary battery having the above non-aqueous electrolyte solution exhibits greatly improved capacity recovery characteristics after high temperature storage and also reduces side effects such as swelling. | 08-25-2011 |
20110229770 | Electrolyte solution for rechargeable lithium battery, and rechargeable lithium battery including the same - An electrolyte solution for a rechargeable lithium battery, including a lithium salt, a non-aqueous organic solvent, and an additive including fluoroethylene carbonate, a vinyl-containing carbonate, a substituted or unsubstituted C2 to C10 cyclic sulfate, and a nitrile-based compound represented by the following Chemical Formula 1: | 09-22-2011 |
20110318653 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MAKING THE SAME, POSITIVE ELECTRODE INCLUDING THE SAME, AND BATTERY INCLUDING THE POSITIVE ELECTRODE - A positive electrode active material for a nonaqueous electrolyte secondary battery includes a positive electrode active material particle and a compound containing a rare earth element and a carbonate, the compound having a particle size of 1 to 100 nm and being adhered to a surface of the positive electrode active material particle. The ratio of the compound relative to the positive electrode active material particle is 0.005% to 0.4% by mass on a rare earth element basis. The positive electrode active material particle is composed of a lithium transition metal oxide having a layered structure. | 12-29-2011 |
20120034531 | ELECTROLYTE AND SECONDARY BATTERY - A secondary battery capable of safely improving a battery performance is provided. An electrolyte with which a separator | 02-09-2012 |
20120107696 | SECONDARY BATTERY - An electrode active material mainly includes an organic compound having, in a structural unit thereof, a conjugated diamine structure represented by the general formula (I), and an electrolyte includes a carbonate ester compound represented by the general formula (II). In the formulae, R | 05-03-2012 |
20120164541 | FLUORIDE ION BATTERY COMPOSITIONS - A lithium-free, anion based charge transport electrochemical system that uses fluoride ion transporting electrolytes, including ionic liquids, with and without various additives to improve performance, is described. The fluoride ion transporting electrolyte can be wholly or partly an ionic liquid that is typically liquid at temperatures less than 200 degrees Celsius. In other embodiments, electrolytes that remain liquid at less than 100 degrees Celsius are useful. | 06-28-2012 |
20120164542 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR STORAGE BATTERY DEVICES, AND STORAGE BATTERY DEVICE - To provide a non-aqueous electrolyte solution for storage battery devices which has high lithium salt solubility, high conductivity and excellent cycle characteristics, and a storage battery device wherein such a non-aqueous electrolyte solution is used. A non-aqueous electrolyte solution for storage battery devices, which comprises a specific lithium salt (A) and a solvent (B) containing a hydrofluoroether (b1) represented by CF | 06-28-2012 |
20120171576 | NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A non-aqueous electrolyte including a lithium salt, an organic solvent, and an electrolyte additive is provided. The electrolyte additive is a meta-stable state nitrogen-containing polymer formed by reacting Compound (A) and Compound (B). Compound (A) is a monomer having a reactive terminal functional group. Compound (B) is a heterocyclic amino aromatic derivative as an initiator. A molar ratio of Compound (A) to Compound (B) is from 10:1 to 1:10. A lithium secondary battery containing the non-aqueous electrolyte is further provided. The non-aqueous electrolyte of this disclosure has a higher decomposition voltage than a conventional non-aqueous electrolyte, such that the safety of the battery during overcharge or at high temperature caused by short-circuit current is improved. | 07-05-2012 |
20120171577 | ELECTROLYTE SOLUTION AND MAGNESIUM BATTERY INCLUDING THE SAME - An electrolytic solution including: a magnesium salt; a non-aqueous organic solvent; and an anion receptor, wherein the anion receptor comprises at least one compound selected from the group consisting of compounds represented by Formulae 1 and 2 below: | 07-05-2012 |
20120189919 | NONAQUEOUS ELECTROLYTE SOLUTION AND ELECTROCHEMICAL ELEMENT USING SAME - Disclosed are a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which contains a sulfonate compound having a specific structure in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution, and an electrochemical device containing the nonaqueous electrolytic solution. The nonaqueous electrolytic solution is excellent in the effect of improving the storage property of primary batteries and improving the cycle property of secondary batteries in use thereof at high temperatures and the low-temperature property thereof after high-temperature cycles. | 07-26-2012 |
20120202121 | HIGH VOLTAGE BATTERY FOR A LITHIUM BATTERY - The present invention provides a electrolyte solution, particularly useful for lithium batteries that includes succinonitrile and a co-solvent that has improved conductivity and, in turn, better battery performance. | 08-09-2012 |
20120202122 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery including a negative electrode, a positive electrode, the positive electrode including a lithium manganese oxide represented by the following Chemical Formula 1a or 1b, and an electrolyte, the electrolyte including an alkylsilyl phosphate represented by the following Chemical Formula 2: | 08-09-2012 |
20120258372 | BATTERY LIFE EXTENDER - A battery life extender for a lead-acid storage battery is provided and comprises a mixtures of polyvinyl alcohol, polylysine, and potassium or sodium sorbate (or sorbic acid), and optionally a preservative, such as sodium benzoate. The extender is added to a lead-acid storage battery. Distilled or deionized water can be included to adjust the specific gravity of the electrolyte. The extender substantially increases the operable life of lead-acid storage batteries. | 10-11-2012 |
20120321964 | NONAQUEOUS SOLVENT AND NONAQUEOUS ELECTROLYTIC SOLUTION FOR ELECTRICAL STORAGE DEVICE AND NONAQUEOUS ELECTRICAL STORAGE DEVICE, LITHIUM SECONDARY BATTERY AND ELECTRIC DOUBLE LAYER CAPACITOR USING THE SAME - A nonaqueous solvent for an electrical storage device disclosed in the present application includes fluorine-containing cyclic saturated hydrocarbon having a structure represented by the following general formula (1) in which one or two substituents R are introduced into a cyclopentane ring; and a compound having a relative dielectric constant of 25 or higher (in general formula (1), R is represented by C | 12-20-2012 |
20130078529 | ELECTROLYTE ADDITIVE FOR IMPROVING HIGH TEMPERATURE PERFORMANCE OF LITHIUM ION BATTERIES AND LITHIUM ION BATTERIES COMPRISING THE SAME - A lithium ion battery includes a first electrode made of a cathodic material; a second electrode made of an anodic material; an electrolyte solution; and an additive added to the electrolyte solution, wherein the additive comprises a conjugated system and a bi-functional hydrogen bonding moiety. The additive includes a −OH group and an N atom. The additive includes a compound having a structure shown as follows: | 03-28-2013 |
20130115520 | NON-AQUEOUS ELECTROLYTIC SOLUTION, AND ELECTROCHEMICAL ELEMENT UTILIZING SAME - The present invention relates to a nonaqueous electrolytic solution which can improve the electrochemical characteristics in a broad temperature range and an electrochemical element produced by using the same. | 05-09-2013 |
20130177822 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - Disclosed is a non-aqueous electrolyte secondary battery using a polyanion compound or a lithium nickelate as a positive electrode active material, suppressing the elution of a transition metal from the polyanion compound or ameliorating the deterioration of a binder by a residual alkali component, and provides a non-aqueous electrolyte secondary battery having a negative electrode intercalating and deintercalating lithium ions, a positive electrode containing a lithium-containing compound as a positive electrode active material, and a non-aqueous electrolyte with a lithium salt dissolved in organic solvent. The lithium-containing compound is a polyanion compound or a lithium nickelate. The non-aqueous electrolyte contains a fluorosilane compound: | 07-11-2013 |
20130337338 | ELECTROLYTES INCLUDING FLUORINATED SOLVENTS FOR USE IN ELECTROCHEMICAL CELLS - Provided are electrochemical cells and electrolytes used to build such cells. The electrolytes include ion-supplying salts and fluorinated solvents capable of maintaining single phase solutions with the salts at between about −30° C. to about 80° C. The fluorinated solvents, such as fluorinated carbonates, fluorinated esters, and fluorinated esters, are less flammable than their non-fluorinated counterparts and increase safety characteristics of cells containing these solvents. The amount of fluorinated solvents in electrolytes may be between about 30% and 80% by weight not accounting weight of the salts. Fluorinated salts, such as fluoroalkyl-substituted LiPF | 12-19-2013 |
20130337339 | LOW MOLECULAR WEIGHT SALTS COMBINED WITH FLUORINATED SOLVENTS FOR ELECTROLYTES - Provided are electrochemical cells and electrolytes used to build such cells. An electrolyte includes at least one salt having a molecular weight less than about 250. Such salts allow forming electrolytes with higher salt concentrations and ensure high conductivity and ion transport in these electrolytes. The low molecular weight salt may have a concentration of at least about 0.5M and may be combined with one or more other salts, such as linear and cyclic imide salts and/or methide salts. The concentration of these additional salts may be less than that of the low molecular weight salt, in some embodiments, twice less. The additional salts may have a molecular weight greater than about 250. The electrolyte may also include one or more fluorinated solvents and may be capable of maintaining single phase solutions at between about −30° C. to about 80° C. | 12-19-2013 |
20130337340 | COMBINATIONS OF FLUORINATED SOLVENTS WITH IMIDE SALTS OR METHIDE SALTS FOR ELECTROLYTES - Provided are electrochemical cells and electrolytes used to build such cells. The electrolytes include imide salts and/or methide salts as well as fluorinated solvents capable of maintaining single phase solutions at between about −30° C. to about 80° C. The fluorinated solvents, such as fluorinated carbonates, fluorinated esters, and fluorinated esters, are less flammable than their non-fluorinated counterparts and improve safety characteristics of cells containing these solvents. The amount of fluorinated solvents in electrolytes may be between about 30% and 80% by weight not accounting weight of the salts. Linear and cyclic imide salts, such as LiN(SO | 12-19-2013 |
20130337341 | FLUOROALKYL CONTAINING SALTS COMBINED WITH FLUORINATED SOLVENTS FOR ELECTROLYTES - Provided are electrochemical cells and electrolytes used to build such cells. An electrolyte may include a fluoroalkyl-substituted LiPF | 12-19-2013 |
20130344398 | LITHIUM SECONDARY BATTERY AND METHOD OF CONTROLLING SHORT RESISTANCE THEREOF - Provided is a lithium secondary battery including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a polymer electrolyte composition having a polymer electrolyte, a non-aqueous organic solvent, and a lithium salt. The content of the polymer electrolyte is 9 to 20 wt %, based on the total weight of the polymer electrolyte composition. | 12-26-2013 |
20140017572 | SECONDARY BATTERY AND ELECTROLYTE LIQUID - The object is to provide a lithium ion secondary battery which has an excellent cycle property even in high-temperature environment and which has small volume increase. An exemplary embodiment of the invention is a lithium ion secondary battery, comprising: a positive electrode, a negative electrode comprising a negative electrode active material, and an electrolyte liquid; wherein the electrolyte liquid comprises a chain-type fluorinated ester compound represented by a predetermined formula and a chain-type fluorinated ether compound represented by a predetermined formula; wherein the negative electrode active material comprises metal (a) that can be alloyed with lithium, metal oxide (b) that can absorb and desorb lithium ion, and carbon material (c) that can absorb and desorb lithium ion; and wherein metal (a) is silicon, and metal oxide (b) is silicon oxide. | 01-16-2014 |
20140030608 | HIGH TEMPERATURE MELT INTEGRITY SEPARATOR - A heat-resistant material based on an amorphous thermoplastic polymer that is resistant to, but highly compatible with electrolyte solutions is disclosed. In an aspect, the heat-resistant material is used to form a separator for a battery cell and/or an electrolytic capacitor cell. | 01-30-2014 |
20140030609 | NONAQUEOUS ELECTROLYTIC SOLUTION AND ENERGY STORAGE DEVICE USING SAME - The present invention is to provide a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous solvent includes 0.01 to 40% by volume of an ester having two alkyl groups at the α-position carbon of the carbonyl group and being represented by the following general formula (I), and an energy storage device. | 01-30-2014 |
20140065490 | ELECTRICITY STORAGE DEVICE - Disclosed is an electricity storage device including a first electrode (a positive electrode ( | 03-06-2014 |
20140147754 | MAGNESIUM BATTERY ELECTROLYTE - A magnesium battery electrolyte with a wide electrochemical window was developed. The electrolyte includes an organic boron magnesium salt and an aprotic polar solvent. The organic boron magnesium salt is an organic boron magnesium salt complex formed by compounding a Lewis acid with a boron center and a magnesium-containing Lewis base R′ | 05-29-2014 |
20140199599 | ELECTROLYTES FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAME - Disclosed is an electrolyte for a rechargeable lithium battery including an organic solvent; a lithium salt; a flame retardant; and at least one acrylate compound having a fluorinated alkyl group. The electrolyte for a rechargeable battery may provide a rechargeable lithium battery having flame-retardant characteristics without decrease of cycle-life and battery performance. | 07-17-2014 |
20140248542 | ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME - An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte. | 09-04-2014 |
20140255793 | FUNCTIONAL ELECTROLYTE FOR LITHIUM-ION BATTERIES - Functional electrolyte solvents include compounds having at least one aromatic ring with 2, 3, 4 or 5 substituents, at least one of which is a substituted or unsubstituted methoxy group, at least one of which is a tert-butyl group and at least one of which is a substituted or unsubstituted polyether or poly(ethylene oxide) (PEO) group bonded through oxygen to the aromatic ring, are provided. | 09-11-2014 |
20140302400 | Energy Storage Devices Having Anodes Containing Mg and Electrolytes Utilized Therein - For a metal anode in a battery, the capacity fade is a significant consideration. In energy storage devices having an anode that includes Mg, the cycling stability can be improved by an electrolyte having a first salt, a second salt, and an organic solvent. Examples of the organic solvent include diglyme, triglyme, tetraglyme, or a combination thereof. The first salt can have a magnesium cation and be substantially soluble in the organic solvent. The second salt can enhance the solubility of the first salt and can have a magnesium cation or a lithium cation. The first salt, the second salt, or both have a BH | 10-09-2014 |
20140342240 | Fluorinated phosphazenes for use as electrolyte additives and co-solvents in lithium ion batteries - An electrolyte solution for use in a battery includes at least: an ionizable salt; at least one organic solvent; and at least one cyclic phosphazene compound. | 11-20-2014 |
20150017551 | USE OF LITHIUM SALT MIXTURES AS LI-ION BATTERY ELECTROLYTES - Lithium salt mixtures, for example a mixture including at least two lithium salts chosen from two of the three following groups of salts: X: LiPF | 01-15-2015 |
20150147661 | FAST CHARGE APPARATUS FOR A BATTERY - A fast charge system | 05-28-2015 |
20150303521 | LITHIUM ION SECONDARY BATTERY - The present invention is a lithium ion secondary battery comprising a positive electrode and a non-aqueous electrolyte solution comprising a non-aqueous electrolyte solvent, wherein the positive electrode comprises a positive electrode active material having an operating potential at 4.5 V or higher versus lithium metal, the non-aqueous electrolyte solvent comprises a fluorinated phosphate ester represented by a predetermined formula and at least one selected from the group consisting of sulfone compounds represented by predetermined formulae, and the sulfone compound is included in an amount of 5 volume % or more in the non-aqueous electrolyte solvent. | 10-22-2015 |
20150333373 | HIGH VOLTAGE ELECTROLYTE AND LITHIUM ION BATTERY - The present application discloses a high voltage electrolyte including an electrolyte solvent which includes a mixture of a dinitrile solvent and a nitrile solvent and is stable at voltage of about 5 V or above. The dinitrile solvent may include at least one selected from the group consisting of malononitrile, succinonitrile, glutaronitrile, adiponitrile, pimelonitrile, suberonitrile, azelanitrile and sebaconitrile. The nitrile solvent may include at least one selected from the group consisting of acetonitrile, propionitrile, butyronitrile, pivalonitrile and capronitrile. The present application also discloses a lithium ion battery including the above high voltage electrolyte. The lithium ion battery exhibits a cyclic performance of greater than about 300 cycles and with a capacity retention of greater than about 80%. | 11-19-2015 |
20150372349 | NON-AQUEOUS ELECTROLYTE AND ELECTRICITY STORAGE DEVICE - The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics in the case of using an energy storage device at a high temperature and further capable of inhibiting the gas generation as well as a capacity retention rate after a high-temperature cycle, and also to provide an energy storage device using the same. Disclosed are a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing a phenyl ester compound represented by the following general formula (I), and an energy storage device. | 12-24-2015 |
20160118686 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - An electrolyte for a rechargeable lithium battery includes a lithium salt, an organic solvent and an additive, where the additive includes a sulfur-containing compound represented by Chemical Formula 1, a phosphazene compound represented by Chemical Formula 2, and a nitrile-based compound. A rechargeable lithium battery includes the electrolyte. | 04-28-2016 |