Abstract: 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): wherein X1 to X4 are the same or different and each is —H, —F, —CF3, —CHF2, —CH2F, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3; at least one of X1 to X4 is —F, —CF3, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3, and the non-aqueous electrolytic solution has further excellent noncombustibility and is suitable for lithium secondary batteries.

Abstract: Cathodes for lithium batteries contain a lithium-manganese cathodic material and from 0.5 to 20% by weight of lithium oxalate. Batteries containing the electrodes tend to exhibit high cycling capacities.

Abstract: A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, containing a hydantoin compound represented by the following general formula (I) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution, and excellent in battery characteristics such as high-temperature storage property and cycle property. (In the formula, R1 and R2 each represent a methyl group or an ethyl group; R3 and R4 each represent a hydrogen atom, a methyl group or an ethyl group.

Abstract: A nonaqueous electrolyte battery is provided and includes a positive electrode, a negative electrode having a negative electrode active material layer containing a negative electrode active material, a separator disposed between the positive electrode and the negative electrode, and a non-fluid electrolyte. The non-fluid electrolyte contains an electrolyte salt, a nonaqueous solvent, an orthoester compound represented by the following formula (1), and at least one member selected from the group consisting of cyclic carbonate compounds represented by the following formula (2) to (5). A volume viscosity of the negative electrode active material layer is 1.50 g/cc or more and not more than 1.75 g/cc, and a specific surface area of the negative electrode active material is 0.8 m2/g or more and not more than 4.

Abstract: A negative-electrode stuff has negative-electrode active-material particles including: an element being capable of sorbing and desorbing lithium ions, and being capable of undergoing an alloying reaction with lithium; or/and an elementary compound being capable of undergoing an alloying reaction with lithium. The negative-electrode active-material particles includes particles whose particle diameter is 1 ?m or more in an amount of 85% by volume or more of them when the entirety is taken as 100% by volume, exhibit a BET specific surface area that is 6 m2/g or less, and exhibits a “D50” that is 4.5 ?m or more.

Abstract: An electrolyte for lithium secondary batteries includes a lithium salt, a nonaqueous organic solvent, and a compound represented by Formula 1 below as an additive: where R1, R2, R3, R4, and R5 in Formula 1 are defined as those specified in the specification.

Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.

Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.

Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes at least one oxide selected from the group consisting of a first oxide having a spinel structure and represented by LixNi0.5Mn1.5O4, a second metal phosphate having an olivine structure and represented by LixMn1-wFewPO4, and a third oxide having a layered structure and represented by LixNiyMnzCo1-y-zO2. The nonaqueous electrolyte includes a first solvent. The first solvent includes at least one compound selected from the group consisting of trimethyl phosphate, triethyl phosphate, tripropyl phosphate, tributyl phosphate, and fluorinated phosphate ester.

Abstract: A nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains at least one kind of an isocyanate compound having an ester structure represented by the following general formula (I): (wherein R represents an alkyl group, an alkenyl group, a C6 to C12 aryl group, an alkyloxy group, an alkenyloxy group, an isocyanatoalkyloxy group, or an aryloxy group in which at least one of the hydrogen atom may be substituted with a halogen atom. X represents a linear or branched alkylene group in which at least one of the hydrogen atom may be substituted with a halogen atom, or a bivalent linking group comprising at least one ether bond.

Abstract: Provided are a non-aqueous electrolyte solution which includes a lithium salt including lithium bis(fluorosulfonyl)imide (LiFSI) and an additive including a vinylene carbonate-based compound and a sultone-based compound, and a lithium secondary battery including the non-aqueous electrolyte solution. The lithium secondary battery including the non-aqueous electrolyte solution of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and capacity characteristics.

Abstract: The present disclosure provides a lithium-ion secondary battery and an electrolyte thereof. The electrolyte comprises a lithium salt, a non-aqueous solvent, and an additive at least containing 1,3-propyl sultone (PS) and a compound of isocyanurate structure represented by formula (1), formula (2) or formula (3); in formula (1), n is a positive integer from 1 to 3; in formula (2), n is a positive integer from 1 to 3, R1 is an alkyl of linear chain or branched chain having carbon atoms from 1 to 6, hydrogen atoms in the alkyl can be substituted by fluorine atoms partly or wholly; in formula (3), n is a positive integer from 1 to 3, R1 and R2 are alkyls of linear chain or branched chain having carbon atoms from 1 to 6, hydrogen atoms in the alkyls can be substituted by fluorine atoms partly or wholly.

Abstract: Provided is an electrolyte solution additive including lithium difluorophosphate (LiDFP), a vinylene carbonate-based compound, and a sultone-based compound. Also, a non-aqueous electrolyte solution including the electrolyte solution additive and a lithium secondary battery including the non-aqueous electrolyte solution are provided. The lithium secondary battery including the electrolyte solution additive of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and swelling characteristics.

Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.

Abstract: A non-aqueous secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution includes a non-aqueous solvent, an electrolyte salt, and one or both of a disulfonyl compound represented by a following Formula (1) and a disulfinyl compound represented by a following Formula (2), where R1 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X1 is a halogen group, where R2 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X2 is a halogen group.

Abstract: Disclosed are an electrolyte for a lithium secondary battery which includes a non-aqueous solvent and a lithium salt, wherein the non-aqueous solvent includes an anion receptor, a cyclic carbonate, and a linear solvent, wherein an amount of the cyclic carbonate is in a range of 1 wt % to 30 wt % based on a total weight of the non-aqueous solvent, and a lithium secondary battery including the same.

Abstract: A lithium secondary battery comprises an anode capable of intercalating or disintercalating lithium ions, a cathode configured with a lithium-containing oxide, and a nonaqueous electrolyte solution. The lithium-containing oxide comprises a lithium nickel based oxide. The nonaqueous electrolyte solution comprises vinyl ethylene carbonate (VEC) and a mono-nitrile compound. This lithium secondary battery solves the deterioration of charge/discharge cycle characteristics caused by a lithium nickel based oxide used for a cathode, and also controls the decomposition reaction of electrolyte to solve the swelling phenomenon even though the battery is stored at a high temperature or charged/discharged in a fully-charged state, thereby improving high-temperature life characteristics.

Abstract: A non-aqueous electrolytic solution comprising a non-aqueous solvent and an electrolyte, which further contains a combination of a nitrile compound and an S?O group-containing compound (or a dinitrile compound) in an amount of 0.001 to 10 wt. % imparts improved cycle performance and storage property to a lithium battery, particularly a lithium secondary battery.

Abstract: A rechargeable lithium battery including a negative electrode including a silicon-based negative active material; a positive electrode including a positive active material including a sacrificial positive active material selected from lithium nickel oxides, lithium molybdenum oxides, and combinations thereof; and a non-aqueous electrolyte, is disclosed.

Abstract: The invention discloses various embodiments of Li-ion electrolytes containing flame retardant additives that have delivered good performance over a wide temperature range, good cycle life characteristics, and improved safety characteristics, namely, reduced flammability. In one embodiment of the invention there is provided an electrolyte for use in a lithium-ion electrochemical cell, the electrolyte comprising a mixture of an ethylene carbonate (EC), an ethyl methyl carbonate (EMC), a fluorinated co-solvent, a flame retardant additive, and a lithium salt. In another embodiment of the invention there is provided an electrolyte for use in a lithium-ion electrochemical cell, the electrolyte comprising a mixture of an ethylene carbonate (EC), an ethyl methyl carbonate (EMC), a flame retardant additive, a solid electrolyte interface (SEI) film forming agent, and a lithium salt.

Abstract: Disclosed are an electrolyte for a rechargeable lithium battery including an ionic liquid represented by Chemical Formula 1, a lithium salt, and an organic solvent, and a rechargeable lithium battery including the electrolyte for a rechargeable lithium battery.

Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are provided. The electrolyte includes a non-aqueous organic solvent, lithium salt, and an additive that is either a dicarboxylic acid anhydride and a halogenated ethylene carbonate or a diglycolic acid anhydride and a halogenated ethylene carbonate.

Abstract: 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.

Abstract: An electrolyte including an alkali metal salt; a polar aprotic solvent; and a triazinane trione; wherein the electrolyte is substantially non-aqueous.

Abstract: Provided are a non-aqueous electrolyte solution including propylene carbonate (PC) and lithium bis(fluorosulfonyl)imide (LiFSI), and a lithium secondary battery including the non-aqueous electrolyte solution. The lithium secondary battery including the non-aqueous electrolyte solution of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, capacity characteristics, and swelling characteristics.

Abstract: The present disclosure relates generally to the field of batteries and battery modules. More specifically, the present disclosure relates to battery cells that may be used in vehicular contexts, as well as other energy storage/expending applications. An electrolyte solution includes at least one ester solvent and a plurality of additives. In particular, the plurality of additives includes a cyclic carbonate-based additive, a sultone-based additive, and either a borate-based additive or an imide-based additive. The presently disclosed electrolyte solutions enable the manufacture of battery cells having a wide operating temperature range (e.g., between approximately ?30° C. and approximately 60° C.).

Abstract: A nonaqueous electrolytic solution which may suppress the overcharge of a battery and a nonaqueous electrolyte secondary battery using the solution are provided. The overcharge of the battery is suppressed by undergoing the electrolytic polymerization in the solution when the battery is overcharged, and simultaneously more effectively suppressed by increasing the internal resistance of the battery. The nonaqueous electrolytic solution comprises a polymer which undergoes the electrolytic polymerization in the range of 4.3V or more to 5.5V or less at the lithium metal standard voltage, having a repeating unit represented by the formula (1), an electrolytic salt and a nonaqueous solvent. [where, A is a functional group which undergoes the electrolytic polymerization in the range of 4.3V or more to 5.

Abstract: The Coulombic efficiency of lithium deposition/stripping can be improved while also substantially preventing lithium dendrite formation and growth using particular electrolyte compositions. Embodiments of the electrolytes include organic solvents and their mixtures to form high-quality SEI layers on the lithium anode surface and to prevent further reactions between lithium and electrolyte components. Embodiments of the disclosed electrolytes further include additives to suppress dendrite growth during charge/discharge processes. The solvent and additive can significantly improve both the Coulombic efficiency and smoothness of lithium deposition. By optimizing the electrolyte formulations, practical rechargeable lithium energy storage devices with significantly improved safety and long-term cycle life are achieved. The electrolyte can also be applied to other kinds of energy storage devices.

Abstract: The over charge protection of a lithium ion cell is improved by using an electrolyte comprising at least one redox shuttle additive that comprises an in situ generated soluble oxidizer or oxidant to accelerate other forms of chemical overcharge protection. The oxidizer can be employed in combination with radical polymerization additives.

Abstract: The present invention provides a nonaqueous electrolytic solution capable of improving electrochemical characteristics in a broad temperature range, such as low-temperature cycle properties and low-temperature discharge properties after high-temperature storage, and provides an energy storage device using the nonaqueous electrolytic solution. The invention includes (1) a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which comprises from 0.001 to 10% by mass of a compound represented by the following general formula (I), and (2) an energy storage device comprising a positive electrode, a negative electrode, and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution is the nonaqueous electrolytic solution of (1).

Abstract: Novel fluorinated cyclic carbonate compounds are described. These compounds may be useful as non-aqueous electrolyte solvents, specialty solvents, and starting materials and intermediates for synthesis of dyes, agricultural chemicals, and pharmaceuticals.

Abstract: The present invention relates to an electrolyte for a lithium secondary battery and a lithium secondary battery including the same, wherein the electrolyte comprises an organic solvent and an electrolyte additive, represented by chemical formula 1 and mixed lithium salts in the organic solvent so that room and high temperature life-time properties of the battery can be improved. Said chemical 1 is defined in the specification.

Abstract: A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous solvent. The non-aqueous electrolytic solution further contains a vinylene carbonate compound in an amount of 0.01 to 10 wt. %, and an alkyne compound in an amount of 0.01 to 10 wt. %.

Abstract: The invention relates to a method for preparing a polyacrylonitrile-sulfur composite material, in which, polyacrylonitrile is converted to cyclized polyacrylonitrile, and the cyclized polyacrylonitrile is reacted with sulfur to form a polyacrylonitrile-sulfur composite material. By a separation of the preparation method into two partial reactions, the reaction conditions are advantageously able to be optimized for the respective reactions and a cathode material is able to be provided for alkali-sulfur cells with improved electrochemical properties. In addition, the invention relates to a polyacrylonitrile-sulfur composite material, a cathode material, an alkali-sulfur cell or an alkali-sulfur battery as well as to an energy store.

Abstract: Non-aqueous electrolyte solutions capable of protecting negative electrode materials such as lithium metal and carbonaceous materials in energy storage electrochemical cells (e.g., lithium metal batteries, lithium ion batteries and supercapacitors) include an electrolyte salt, a non-aqueous electrolyte solvent mixture, an unsaturated organic compound 4-methylene-1,3-dioxolan-2-one or 4,5-dimethylene-1,3-dioxolan-2-one, and other optional additives. The 1,3-dioxolan-2-ones help to form a good solid electrolyte interface on the negative electrode surface.

Abstract: Disclosed is a liquid electrolyte for a lithium accumulator and the use thereof in a lithium accumulator at low temperature. The liquid electrolyte includes at least one lithium salt dissolved in a mixture of non-aqueous organic solvents. The mixture of organic solvents is formed by propylene carbonate (PC), ?-butyrolactone (GBL) and ethyl methyl carbonate (EMC). The mixture of organic solvents preferably contains between: 0.5% and 33% in volume of propylene carbonate, 0.5% and 33% in volume of ?-butyrolactone and, 0.5% and 99% in volume of ethyl methyl carbonate, the sum of the respective volume percentages of propylene carbonate, ?-butyrolactone, and ethyl methyl carbonate in the mixture being equal to 100%.

Abstract: Electrolyte additives are described that enhance cycling stability of electrolytes and lithium composite electrodes that prolong cycling lifetimes and improve electrochemical performance of lithium ion batteries. The electrolyte additives minimize voltage fading and capacity fading observed in these batteries by reducing accumulation of passivation films on the electrode surface.

Abstract: A liquid electrolyte for a lithium battery including lithium perchlorate (LiClO4) dissolved in a quaternary mixture of ethylene carbonate (EC), diethyl carbonate (DEC), tetrahydrofurane (THF) and ethyl methyl carbonate (EMC). The liquid electrolyte advantageously contains between: 10% and 30% by mass of ethylene carbonate (EC), 10% and 30% by mass of diethyl carbonate (DEC), 10% and 30% by mass of tetrahydrofurane (THF) and, 10% and 70% by mass of ethyl methyl carbonate (EMC). The quaternary mixture is preferably a EC/DEC/THF/EMC mixture in a 1/1/1/3 mass ratio. The liquid electrolyte is particularly suitable for use in a lithium battery.

Abstract: The battery includes a solid electrolyte activating a positive electrode and a negative electrode. The electrolyte is a solid including a lithium ion conductive glass-ceramic. The negative electrode includes a buffer layer between a negative medium and the electrolyte. The negative medium includes one or more primary negative active materials. The buffer layer includes one or more secondary negative active materials that do not dissolve the lithium ion conductive glass-ceramic. The secondary negative active materials can have a redox potential greater than 0.5 V vs Li/Li+.

Abstract: 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 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 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.

Abstract: A nonaqueous electrolyte and a lithium-ion secondary battery using the same, wherein a mixture of a cyclic carbonate, a chain carbonate, a first phosphoric acid ester wherein bonding between carbons is a single bond, and a second phosphoric acid ester wherein bonding between carbons contains a double bond is used as the nonaqueous electrolyte. It is desirable that the first phosphoric acid ester is a trimethyl phosphate. In addition, it is desirable that the second phosphoric acid ester is a dimethylisopropenyl phosphate.

Abstract: Provided is a non-aqueous electrolyte secondary battery which has excellent high-temperature cycle characteristics, while maintaining the shutdown response speed of the separator and the overcharge characteristics after many repeated cycles at high temperatures. The battery uses a non-aqueous electrolyte containing a carboxylic acid ester and a nitrile compound, and a separator having a porosity of 28 to 54% and an air permeability of 86 to 450 secs/dl.

Abstract: Use of an electrolyte for an electrochemical cell and a method for manufacturing an electrochemical cell comprising such an electrolyte. The electrolyte comprises at least one conductive salt comprising lithium ions, at least one solvent and at least one wetting agent. The electrochemical cell comprises at least one anode, at least one cathode and at least one separator arranged between the at least one anode and the at least one cathode. The electrolyte may be filled between the at least one anode and the at least one cathode.

Abstract: The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more.

Abstract: The objective of the present invention is to prevent deterioration and expanding of anode active material and to improve charge-discharge cycle characteristics in a non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material containing a metal. To solve this problem, in a non-aqueous electrolyte secondary battery wherein a thin layer of anode active material containing a metal which absorbs and discharges lithium is formed on a current collector and the thin layer of the anode active material is divided into columns by a gap formed along the thickness thereof, a compound represented by the following formula is contained in the non-aqueous electrolyte. A-N?C?O In the above formula, A represents an element or a group other than hydrogen.

Abstract: A secondary battery which includes a positive electrode and a negative electrode, wherein the negative electrode has a negative electrode collector and a negative electrode active material layer, and the negative electrode collector has a base material which is formed of aluminum foil and an resin film which has a thickness of 0.01 to 5 ?m and does not allow a nonaqueous electrolyte to permeate therethrough.

Abstract: A lithium secondary battery includes a positive electrode which can occlude and discharge lithium ion, a negative electrode which can occlude and discharge lithium ion, a separator which is disposed between the positive electrode and the negative electrode, and an electrolyte. In order to suppress a deterioration for a period of high temperature storage at 50° C. or more, the electrolyte includes a compound within whose molecule a plurality of polymerizable functional groups are included. The electrolyte can include a compound represented by the formula 3: wherein each of Z1 and Z2 represents a polymerizable functional group including any one selected from the group consisting of allyl group, methallyl group, vinyl group, acryl group and methacryl group.

Abstract: Electrochemical cells of the present invention are versatile and include primary and secondary cells useful for a range of important applications including use in portable electronic devices. Electrochemical cells of the present invention also exhibit enhanced safety and stability relative to conventional state of the art primary lithium batteries and lithium ion secondary batteries. For example, electrochemical cells of the present invention include secondary electrochemical cells using a combination of anion and cation charge carriers capable of accommodation by positive and negative electrodes independently comprising host materials.

Abstract: Provided is a lithium secondary cell of 5V class having a positive electrode operating voltage of 4.5V or higher with respect to metallic lithium; the lithium secondary cell has high energy density, inhibits degradation of the electrolytic solution that comes in contact with the positive electrode and the negative electrode, and has particularly long cell life when used under high-temperature environments.

Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.