Abstract: Disclosed is a non-aqueous electrolyte including an electrolyte salt and an electrolyte solvent, the non-aqueous electrolyte further including a compound containing both a carboxy group and a (meth)acrylic group, and a secondary battery including the non-aqueous electrolyte. The use of the compound containing both the carboxy group and the (meth)acrylic group as a component for an electrolyte significantly reduces the increase of battery thickness at high temperature storage.

Abstract: Disclosed is a method for producing a lithium difluorobis(oxalato)phosphate solution, which is characterized by that lithium hexafluorophosphate and oxalic acid are mixed together in a nonaqueous solvent, in a manner that the molar ratio of lithium hexafluorophosphate to oxalic acid falls within a range of 1:1.90 to 1:2.10, and furthermore silicon tetrachloride is added to this, in a manner that the molar ratio of lithium hexafluorophosphate to silicon tetrachloride falls within a range of 1:0.95 to 1:1.10, thereby conducting a reaction. The lithium difluorobis(oxalato)phosphate solution produced by this method has low contents of chlorine compounds and free acids. Therefore, it can become an additive that is effective for improving performance of nonaqueous electrolyte batteries.

Abstract: A new cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. Each of the formulations exists as a distinct cathode layer. After each layer is pressed or sheeted individually, a first one of the layers is contacted to a current collector. The other layer is then contacted to the opposite side of the layer contacting the current collector. Therefore, by using electrodes comprised of layers, where each layer is optimized for a desired characteristic (i.e. high capacity, high power, high stability), the resulting battery will display improved function over a wide range of applications. Such an exemplary cathode is comprised of: SVO (100?x %)/SVO (100?y %)/current collector/SVO (100?y %)/SVO (100?x %), wherein x and y are different and represent percentages of non-active materials.

Abstract: A nonaqueous electrolyte includes: a nonaqueous solvent containing 0.1% by volume or more and not more than 50% by volume of at least one member selected from the group consisting of a halogen element-containing chain carbonate represented by the following formula (1) and a halogen element-containing cyclic carbonate represented by the following formula (2); and an electrolyte salt containing a compound represented by the following formula (3) in an amount of 0.001 moles/L or more and not more than 0.

Abstract: A nonaqueous solvent for an electrical storage device according to the present invention 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 cyclohexane ring; a compound having a relative dielectric constant of 25 or higher; and a chain carbonate (in general formula (1), R is represented by CnX2n+1 where n is an integer of 1 or greater, at least one of (2n+1) pieces of X's is F, and the other X's are H).

Abstract: A non-aqueous electrolyte includes: at least one ionically conducting salt, a non-aqueous, anhydrous solvent for the ionically conductive salt, said solvent being selected to achieve a lithium transference number between 0.45 and 1.0, at least one oxide in a particulate form, said oxide being selected such that it is not soluble in said solvent and such that it is water-free.

Abstract: 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: wherein R1 is a C1 to C10 alkyl, a C1 to C10 alkoxy, or a C6 to C10 aryl, and preferably a methyl, ethyl, or methoxy, X is a halogen, and m and n are integers ranging from 1 to 5, where m+n is less than or equal to 6.

Abstract: A fluoride ion battery includes a substantially lithium-free anode and cathode. At least one of the anode or cathode contains fluorine, and a substantially lithium-free liquid electrolyte is used for charge transport. The electrolyte is liquid at temperatures below about 200 degrees Celsius, and can be formed from an organic-soluble fluoride salt dissolved in selected classes of solvents.

Abstract: A quaternary ammonium salt of the formula (1), a composition containing the quaternary ammonium salt and an organic solvent, and an electrochemical device using the salt wherein R1 and R2 are both methyl and X? is BF4? or N(CF3SO2)2?.

Abstract: The present invention provides an electrolyte for lithium and lithium-ion batteries comprising a lithium salt such as LiF2BC2O4, LiPF6, LiBF4, and/or LiB(C2O4)2. In a liquid carrier comprising glycerol carbonate. Preferably, the electrolyte comprises a combination of glycerol carbonate with one or more other carbonate solvent (e.g., dimethylcarbonate, ethylene carbonate, and the like).

Abstract: An object of the invention is to provide an inexpensive non-aqueous electrolyte secondary battery that allows reversible charge and discharge to be carried out. The non-aqueous electrolyte secondary battery according to the invention includes a positive electrode, a negative electrode containing carbon capable of storing and releasing potassium, and a non-aqueous electrolyte including potassium ions.

Abstract: There is provided a lithium secondary cell having specifically excellent discharge capacity, rate characteristics and further cycle characteristics and improved incombustibility (safety). The lithium secondary cell comprises a negative electrode, a non-aqueous electrolytic solution and a positive electrode, in which an active material for the negative electrode comprises lithium titanate and the non-aqueous electrolytic solution comprises a fluorine-containing solvent.

Abstract: 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.

Abstract: According to one embodiment, a positive electrode includes a positive electrode layer and a positive electrode current collector. The positive electrode layer includes a positive electrode active material including a first oxide represented by the following formula (?) and/or a second oxide represented by the following formula (?). The positive electrode layer has an intensity ratio falling within a range of 0.25 to 0.7. The ratio is represented by the following formula (1) in an X-ray diffraction pattern obtained by using CuK? radiation for a surface of the positive electrode layer.

Abstract: The invention relates to reactive ionic liquids containing organic cations with groups or substituents which are susceptible to electrochemical reduction and anions obtained from fluoroalkyl phosphates, fluoroalkyl phosphinates, fluoroalkyl phosphonates, acetates, triflates, imides, methides, borates, phosphates and/or aluminates, for use in electrochemical cells, such as lithium ion batteries and double-layer capacitors.

Abstract: The present invention intends to improve the intermittent cycle characteristics in a lithium ion secondary battery including, as a positive electrode active material, a lithium composite oxide mainly composed of nickel or cobalt. The present invention is a lithium ion secondary battery wherein the positive electrode includes active material particles including a lithium composite oxide. The lithium composite oxide is represented by the general formula (1): LixM1-yLyO2 (where 0.85?x?0?y?0.50, and element M is at least one selected from the group consisting of Ni and Co, and element L is at least one selected from the group consisting of alkaline earth elements, transition metal elements, rare earth elements, Group IIIb elements and Group IVb elements). The surface layer of the active material particles includes element Le being at least one selected from the group consisting of Al, Mn, Ti, Mg, Zr, Nb, Mo, W and Y. The active material particles are surface-treated with a coupling agent.

Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; lithium salt; and difluoro oxalato borate and fluoro ethylene carbonate (FEC). The capacity retention property and durability of a lithium ion secondary battery including the electrolyte is excellent even when the battery is left at a high temperature.

Abstract: A variety of methods and apparatus are implemented in connection with a battery. According to one such arrangement, an apparatus is provided for use in a battery in which ions are moved. The apparatus comprises a substrate and a plurality of growth-rooted nanowires. The growth-rooted nanowires extend from the substrate to interact with the ions.

Abstract: The invention discloses a method of increasing the cycle life of rechargeable battery with a negative electrode (anode) made of lithium or lithium-containing alloys and electrolyte/salt solution which comprises one or more non-aqueous organic solvents and one or more lithium salts, the method comprising adding to the electrolyte/salt solution a lithium dendrite scavenging additive in an amount sufficient that a rate of lithium dendrite formation is equal to or lower than a rate of lithium dissolution occurring due to interaction with the dendrite scavenging additive dissolved in the electrolyte.

Abstract: A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and a carbonate organic solvent. The non-aqueous electrolyte solution further includes a fluoro group-containing sulphonate compound expressed by Chemical Formula 1. When the non-aqueous electrolyte solution is employed for a lithium secondary battery, low-temperature discharging characteristics and life cycle characteristics are greatly improved. Also, even though a battery is stored at a high temperature in a fully-charged state or a charging/discharging process is under progress, the decomposition reaction of a carbonate-based organic solvent is restrained, thereby solving the swelling problem and improving high-temperature life cycle characteristics.

Abstract: A process is provided to produce non-aqueous electrolytic solution for use in batteries having low acid content and low water content. The invention involves removing acids and water from non-aqueous electrolytic solutions typically found in lithium or lithium-ion batteries by using nitrogen-containing compounds such as triazines. After treatment by a triazine such as melamine, the concentrations of acids and water in the electrolytic solutions are substantially decreased. The present invention provides a process to prepare extremely pure electrolytic solutions having low (<20 ppm) concentrations of both water and acids.

Abstract: There is provided an electrolytic solution which may significantly improve performance deterioration with time of an electrochemical capacitor. There is provided an electrolytic solution, comprising an electrolyte salt (A) shown as the following formula (1). In the formula, “R1,” “R2,” and “R3” independently represent an alkyl group having a carbon number of 1 to 3, “R4” and “R5” independently represent hydrogen atom or an alkyl group having a carbon number of 1 to 3, and “X?” represents a counterpart anion.

Abstract: A quaternary ammonium salt of the formula (1), electrolytic solution and electrochemical device using the salt wherein R1 is straight-chain or branched alkyl having 1 to 4 carbon atoms, R2 is straight-chain or branched alkyl having 1 to 3 carbon atoms, and X? is N(CN)2?, SCN?, NO3?, NCO? or NO2?.

Abstract: The invention relates to an electrolyte formulation comprising a) an ionic liquid which is electrochemically stable over a range of at least 4.5 V, has a viscosity of less than 300 mPa·s at 20° C. and has a conductivity of at least 1 mS/cm at 20° C., and b) an aprotic, dipolar solvent in an amount of 20 to 60% by volume based on the electrolyte formulation, wherein the conductivity of the electrolyte formulation is greater at least by a factor of 2 than the conductivity of the ionic liquid.

Abstract: An electrochemical cell includes a cathode capable of reversibly releasing and receiving an alkali metal; an anode capable of reversibly releasing and receiving the alkali metal; and a non-aqueous electrolyte including one or more dissolved lithium salts, one or more nitriles, sulfur dioxide, and one or more other polar aprotic solvents.

Abstract: The present invention provides a nonaqueous electrolyte secondary battery, an electrode and a carbonaceous material. The nonaqueous electrolyte secondary battery has an electrode containing a carbonaceous material obtained by a production method comprising a step of heating a compound of formula (1) or a calcination product of the compound, under an inert gas atmosphere in the range of from 200° C. to 3000° C.: wherein R represents a hydrocarbon group having 1 to 12 carbon atoms, and a hydroxyl group, an alkyl group, an alkoxyl group, an aryl group, an aryloxy group, a sulfonyl group, a halogen atom, a nitro group, a thioalkyl group, a cyano group, a carboxyl group, an amino group or an amide group may be attached to the hydrocarbon group; R? represents a hydrogen atom or a methyl group; n represents 3, 5 or 7.

Abstract: The present invention provides a nonaqueous electrolytic solution exhibiting excellent battery characteristics such as electrical capacity, cycle property and storage property and capable of maintaining the battery characteristics for a long time, and a lithium secondary battery using the nonaqueous electrolytic solution. A nonaqueous electrolytic solution for a lithium secondary battery, in which an electrolyte salt is dissolved in a nonaqueous solvent, containing 0.1 to 10% by weight of an ethylene carbonate derivative represented by the general formula (I) shown below, and 0.

Abstract: Disclosed herewith are an additive mixture for the electrolyte of lithium ion secondary batteries and electrolyte of lithium ion secondary batteries comprising the said additive mixture. The additive mixture comprises biphenyl based compound 0.5-95.4 wt %, cyclohexyl benzene based compound 0.1-93.8 wt %, vinylene carbonate 0.4-93.2 wt %, t-alkyl benzene based compound 0.5-96.5 wt %, and phenyl vinyl sulfone 0.5-95.8% based on total weight of the additive mixture.

Abstract: An electrode material comprising a particle containing at least one member selected from the particles containing silicon, tin, silicon compound and tin compound, and fibrous carbon. The particle includes: (1) a particle comprising at least one member of a silicon particle, tin particle, particle containing a lithium-ion-intercalatable/releasable silicon compound and particle containing a lithium-ion-intercalatable/releasable tin compound; or (2) a particle comprising a silicon and/or silicon compound-containing carbonaceous material deposited onto at least a portion of the surfaces of a carbon particle having a graphite structure. The lithium secondary battery using the electrode material as a negative electrode has high discharging capacity and is excellent in cycle characteristics and characteristics under a load of large current.

Abstract: Disclosed is an electrolyte for a rechargeable lithium battery including: a first additive having an oxidation potential of 4.1 to 4.6V; a second additive having an oxidation potential of 4.4 to 5.0V; a non-aqueous organic solvent; and a lithium salt.

Abstract: Disclosed is a rechargeable lithium polymer battery comprising a negative electrode including a negative active material layer deposited on a substrate, a positive electrode including a positive active material; and a polymer electrolyte including a lithium salt, an organic solvent, and a polymer.

Abstract: Disclosed is a rechargeable lithium ion battery including a positive electrode comprising a first current collector and a positive active material layer on the first current collector; a negative electrode comprising a second current collector and a negative active material layer on the second current collector; and an electrolyte comprising a non-aqueous organic solvent and a lithium salt. At least one of the first and the second current collectors includes a rigid polymer film with a metal deposited on the rigid polymer film.

Abstract: A secondary lithium battery electrolyte including a lithium salt, a nonaqueous organic solvent, and an electrolyte additive represented by Formula 1: where n is an integer in the range of 1 to 4. A secondary lithium battery having excellent cycle and high temperature retention characteristics can be provided by using such secondary lithium battery electrolyte.

Abstract: This invention relates to overcharge protection and molecular redox shuttles in rechargeable lithium-ion cells. For this, specific nitroxyls or oxoammonium salts are used in the electrolyte. This invention also relates to a method of producing such lithium-ion cells and to a method of recharging such lithium-ion cells. This invention also pertains to some nitroxyls compounds and oxoammonium salts.

Abstract: Disclosed is a lithium secondary battery which is excellent in battery characteristics such as long-term cycle characteristics, capacity and shelf life characteristics. Also disclosed is a nonaqueous electrolyte solution which can be used for such a lithium secondary battery. Specifically disclosed is a nonaqueous electrolyte solution for lithium secondary batteries obtained by dissolving an electrolyte salt in a nonaqueous solvent which is characterized by containing 0.01-10% by weight of a carboxylate compound represented by the general formula (I) below and 0.01-10% by weight or 0.01-10% by volume of a vinylene carbonate and/or 1,3-propane sultone. Also disclosed is a lithium secondary battery using such a nonaqueous electrolyte solution. (In the formula, R2 represents a hydrogen atom or COOR3 group, R1 and R3 respectively represent an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group or a phenyl group, and X represents an alkynylene group or an alkenylene group.

Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.

Abstract: An organic electrolytic solution including: a lithium salt; an organic solvent; and a compound represented by Formula 1 below, and a lithium battery including the organic electrolytic solution. In Formula 1: R1, R2, and R3 may be each independently a hydrogen atom, a C1 to C10 alkyl group, a C6 to C10 cycloalkyl group, a C6 to C10 aryl group, a C2 to C10 alkenyl group, or a C2 to C10 alkynyl group; X is C (R2) or nitrogen; and n is an integer ranging from 1 to 5.

Abstract: 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.

Abstract: The present invention provides an electrode in which an electrode active material particles as being interconnected are applied on current collector, wherein the interconnected surface of electrode active material particles is coated with a polymer, the polymer being present as an independent phase, while maintaining a pore structure formed among the interconnected electrode active material particles as well as an electrochemical device including the electrode.

Abstract: A battery capable of improving battery characteristics such as cycle characteristics is provided. A coating containing lithium fluoride and lithium hydroxide is provided on the surface of an anode active material layer. The ratio between lithium fluoride and lithium hydroxide is in the range, in which the Li2F+/Li2OH+ peak intensity ratio obtained in positive ion analysis by a Time of Flight-Secondary Ion Mass Spectrometry is 1 or more. The anode active material layer contains a substance containing Si or Sn as an element as an anode active material. By the coating, oxidation of the anode active material layer is inhibited, and decomposition reaction of the electrolytic solution is inhibited.

Abstract: The disclosed subject matter relate to a di-tert-butylphenyl alkylsulfonate compound, tert-butylphenyl alkylsulfonate compound, di-tert-butylphenyl arylsulfonate compound or tert-butylphenyl arylsulfonate compound useful as an intermediate raw material of a pharmaceutical, agricultural chemical, electronic material or polymer material and the like, or as a battery material, and also provides a nonaqueous electrolytic solution for a lithium secondary battery having superior cycle performance and other battery properties through the use thereof, and a lithium secondary battery. The disclosed embodiments further relate to a nonaqueous electrolytic solution for use as in a lithium secondary battery containing, in a nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, 0.

Abstract: An electrolyte comprising an organic solvent, a lithium salt, and a polymer additive comprised of repeating vinyl units joined to one or more heterocyclic amine moieties is described. The heterocyclic amine contains five to ten ring atoms, inclusive. An electrochemical cell is also disclosed. The preferred cell comprises a negative electrode which intercalates with lithium, a positive electrode comprising an electrode active material which intercalates with lithium, and the electrolyte of the present invention activating the negative and the positive electrodes.

Abstract: 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.

Abstract: An electrolyte for a lithium ion secondary battery is provided. The electrolyte includes a non-aqueous organic solvent, a lithium salt, an ionic liquid and an additive. The additive has a lowest unoccupied molecular orbital (LUMO) level of ?0.5 to 1.0 eV and a highest occupied molecular orbital (HOMO) level lower than ?11.0 eV. Further provided is a lithium ion secondary battery including the electrolyte. The battery is advantageous in terms of overcharge safety and heat stability. In addition, the battery has improved high-efficiency properties and cycle life characteristics.

Abstract: A rolled foil of surface roughened copper as thick as 26 ?m for example having a surface formed into an irregular shape with copper precipitated thereon by an electrolytic method is prepared as a negative electrode collector. Tin (Sn) or germanium (Ge) is deposited on the rolled foil described above, so that a negative electrode active material layer is formed. Note that the deposited tin or germanium is amorphous. The arithmetic mean roughness Ra in the surface-roughened rolled foil described above is preferably not less than 0.1 ?m nor more than 10 ?m. A non-aqueous electrolyte is produced by adding sodium hexafluorophosphate as an electrolyte salt in a concentration of 1 mol/l to a non-aqueous solvent produced by mixing ethylene carbonate and diethyl carbonate in the ratio of 50:50 by volume.

Abstract: There is provided a method for producing an electrolyte solution for lithium ion batteries, in which lithium hexafluorophosphate is used as an electrolyte, comprising the steps of (a) reacting phosphorus trichloride, chlorine and lithium chloride in a nonaqueous organic solvent; and (b) reacting a reaction product of the step (a) formed in the solvent, with hydrogen fluoride.

Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; lithium salt; and difluoro oxalato borate and fluoro ethylene carbonate (FEC). The capacity retention property and durability of a lithium ion secondary battery including the electrolyte is excellent even when the battery is left at a high temperature.

Abstract: A lithium-ion battery includes a positive electrode having an active material and a polymeric separator configured to allow electrolyte and lithium ions to flow between a first side of the separator and an opposite second side of the separator. The battery also includes a liquid electrolyte having a lithium salt dissolved in at least one non-aqueous solvent and a negative electrode having a lithium titanate active material. The positive electrode has a first capacity and the negative electrode has a second capacity that is less than the first capacity.

Abstract: In order to manufacture a lithium secondary battery having excellent performances in safety under overcharge condition, cycle property, electric capacity, and storage endurance, 0.1 wt. % to 10 wt. % of a tert-alkylbenzene compound is favorably incorporated into a non-aqueous electrolytic solution comprising a non-aqueous solvent and an electrolyte, preferably in combination with 0.1 wt. % to 1.5 wt. % of a biphenyl compound.

Abstract: A rechargeable lithium-ion cell contains a positive electrode, negative electrode, charge-carrying electrolyte containing charge carrying medium and lithium salt, and an N-substituted or C-substituted phenothiazine compound dissolved in or dissolvable in the electrolyte. The substituted phenothiazine compound has an oxidation potential above the positive electrode recharged potential and serves as a cyclable redox chemical shuttle providing cell overcharge protection.