Abstract: A nonaqueous electrolyte battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte containing a solvent and an electrolyte salt, wherein the nonaqueous electrolyte contains a silyl compound represented by the following formula (1) wherein X represents an aliphatic hydrocarbon group having a main chain with a carbon number of 8 or more and not more than 22; a part or all of hydrogens of X may be substituted with a halogen; each of R1 to R3 independently represents a hydrogen group, a halogen group or an aliphatic hydrocarbon group; and at least one of R1 to R3 contains a halogen group.

Abstract: A nonaqueous electrolyte includes: a solvent; an electrolyte salt; an aromatic compound represented by the following formula (1); and a polyoxometalate and/or a polyoxometalate compound wherein each of R1 to R6 independently represents a hydrogen group, a halogen group, an aliphatic alkyl group, an alicyclic alkyl group, a phenyl group or an alkoxy group; at least one of R1 to R6 is a halogen group, an aliphatic alkyl group, an alicyclic alkyl group, a phenyl group or an alkoxy group; a part or all of hydrogens of R1 to R6 may be substituted with a halogen; and at least a part of R1 to R6 may be bonded to each other to form a ring.

Abstract: A nonaqueous electrolyte includes: a nonaqueous solvent; an electrolyte salt; a hydrocarbon compound having a nitrile group; and at least one of a heteropolyacid and a heteropolyacid compound.

Abstract: In one example, a nonaqueous electrolyte and a nonaqueous electrolyte cell are configured to prevent deterioration of the cell capability due to an antioxidant under a high temperature environment with the antioxidant in a small content. In one example, the separator is impregnated with an electrolytic solution. In one example, the electrolytic solution contains a solvent, an electrolyte salt and an antioxidant, the solvent contains a halogenated carbonate ester represented, a content of the halogenated carbonate ester is from 0.1 to 50% by mass, and a content of the antioxidant is from 0.01 to 5,000 ppm.

Abstract: A nonaqueous electrolyte includes: a nonaqueous solvent; an electrolyte salt; an imide salt; and at least one of a heteropolyacid and a heteropolyacid compound.

Abstract: A nonaqueous electrolyte includes: a solvent, an electrolyte salt, and at least one of heteropolyacid salt compounds represented by the following formulae (I) and (II): HxAy[BD12O40].zH2O (I), HpAq[B5D30O110].rH2O (II). A represents Li, Na, K, Rb, Cs, Mg, Ca, Al, NH4, or an ammonium salt or phosphonium salt; B represents P, Si, As or Ge; D represents at least one element selected from Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Zr, Nb, Mo, Tc, Rh, Cd, In, Sn, Ta, W, Re and Tl; x, y and z are values falling within the ranges of (0?x?1), (2?y?4) and (0?z?5), respectively; and p, q and r are values falling within the ranges of (0?p?5), (10?q?15) and (0?r?15), respectively.

Abstract: A nonaqueous electrolytic solution includes: a solvent, an electrolyte salt, a polyacid and/or a polyacid compound, and a monofluorophosphate and/or a difluorophosphate.

Abstract: A secondary battery capable of improving the cycle characteristics and the storage characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution containing a nonaqueous solvent and an electrolyte salt. The nonaqueous solvent contains cyclic polyester obtained by dehydrating and condensing two or more divalent carboxylic acid and one or more divalent alcohol.

Abstract: A positive electrode includes: a positive electrode collector; and a positive electrode active material layer provided on the positive electrode collector and containing a positive electrode active material and an alkaline earth metal carbonate having a fixed form.

Abstract: A secondary battery capable of improving battery characteristics is provided. The secondary battery includes a cathode 21 containing a cathode active material capable of inserting and extracting an electrode reactant, an anode 22 containing an anode active material capable of inserting and extracting the electrode reactant, and an electrolyte containing a solvent and an electrolyte salt. At least one of the cathode 21, the anode 22, and the electrolyte contains a radical scavenger compound. The radical scavenger compound is a compound in which a group having a radical scavenger function exists as a matrix, to which one or more carboxylic metal bases or one or more sulfonic metal bases are introduced. Chemical stability of the cathode 21, the anode 22, or the electrolyte containing the radical scavenger compound is improved. Thus, at the time of charge and discharge, decomposition reaction of the electrolytic solution is easily inhibited.

Abstract: A lithium secondary battery capable of obtaining superior cycle characteristics, superior storage characteristics and superior load characteristics is provided. The lithium secondary battery includes a cathode, an anode and an electrolytic solution. The electrolytic solution contains a nonaqueous solvent, a lithium ion, a nitrogen-containing organic anion having an imidazole skeleton, and an inorganic anion having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.

Abstract: A lithium secondary battery capable of obtaining superior cycle characteristics, superior storage characteristics, and superior load characteristics is provided. The lithium secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains a nonaqueous solvent, a lithium ion, at least one of nitrogen-containing organic anion having a Lewis acidic ligand, and at least one of inorganic anion having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.

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 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 electrolyte battery includes: a positive electrode, a negative electrode, and a nonaqueous electrolyte, wherein the positive electrode contains, as a positive electrode active material, a positive electrode material having a surface composition represented by the following formula (I); the nonaqueous electrolyte contains a halogenated carbonate represented by any of the following formulae (1) to (2) and an alkylbenzene represented by the following formula (3); a content of the halogenated carbonate is 0.1% by mass or more and not more than 50% by mass relative to the nonaqueous electrolyte; and a content of the alkylbenzene is 0.

Abstract: There is provided a lithium ion secondary battery including: a cathode; an anode: and an electrolytic solution. The anode has an anode active material layer on an anode current collector, the anode active material layer contains an anode active material having silicon (Si) as an element and a metal conductive material having a metal element as an element, and a void ratio of the anode active material layer measured by mercury intrusion method (pressure: 90 MPa) is 10% or less.

Abstract: An anode in which an anode active material layer is arranged on an anode current collector. The anode active material layer includes anode active material particles made of an anode active material including at least one of silicon and tin as an element. An oxide-containing film including an oxide of at least one kind selected from the group consisting of silicon, germanium and tin is formed in a region in contact with an electrolytic solution of the surface of each anode active material particle by a liquid-phase method such as a liquid-phase deposition method. The region in contact with the electrolytic solution of the surface of each anode active material particle is covered with the oxide-containing film, to thereby improve the chemical stability of the anode and the charge-discharge efficiency. The thickness of the oxide-containing film is preferably within a range from 0.1 nm to 500 nm both inclusive.

Abstract: A negative electrode includes: a negative electrode collector; and a negative electrode active material layer covering at least one principal plane of the negative electrode collector and containing at least a negative electrode active material, wherein the negative electrode active material contained in a region of up to at least 50% of a thickness from the surface of the negative electrode active material layer is covered with a solid electrolyte interface coating, and the solid electrolyte interface coating contains a product with a crosslinked isocyanate group in an isocyanate compound.

Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; a nonaqueous electrolyte containing an electrolyte salt; and a separator, wherein in the electrolyte salt, a molar fraction x of at least one member selected among electrolyte salts represented by the following formulae (1) and (2) occupying in the whole electrolyte salt satisfies a relationship of (0.5<x?1) LiPFaAc ??(1) LiBFbB?d ??(2) wherein a represents an integer of from 0 to 5; b represents an integer of from 0 to 3; each of A and B? independently represents CnF2n+1; n represents an integer of from 1 to 6; c represents an integer of 1 or more and satisfies a relationship of (a+c=6); and d represents a an integer of 1 or more and satisfies a relationship of (b+d=4).

Abstract: 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.