Abstract: A battery capable of improving the cycle characteristics even if the thickness of an anode active material layer is increased is provided. The battery includes a cathode, an anode and an electrolytic solution. The anode has an anode active material layer on an anode current collector, and the anode active material layer contains a carbon material and has a thickness of 30 ?m or more. The electrolytic solution contains a solvent and an electrolyte salt, and the solvent contains at least one of sulfone compounds such as a cyclic disulfonic acid anhydride.

Abstract: A positive-electrode active material for a lithium-ion secondary battery has an average composition expressed by the following formula (1): LixCo1-y-zMyCezOb-aXa ??(1) wherein M represents at least one element selected from the group consisting of boron B, magnesium Mg, aluminum Al, silicon Si, phosphorous P, sulfur S, titanium Ti, chromium Cr, manganese Mn, iron Fe, cobalt Co, nickel Ni, copper Cu, zinc Zn, gallium Ga, yttrium Y, zirconium Zr, molybdenum Mo, silver Ag, tungsten W, indium In, tin Sn, lead Pb, and antimony Sb, X represents a halogen element, and x, y, z, a, and b satisfy 0.2<x?1.2, 0?y?0.1, 0.5<z?5.0, 1.8?b?2.2, and 0?a?1.0, respectively, and the concentration of cerium Ce is higher in the vicinity of the surface than in the inside.

Abstract: A nonaqueous electrolyte includes: an electrolyte salt, at least one of dimethyl carbonate and ethyl methyl carbonate, a chain carbonate ester represented by formula (I), and a polysiloxane compound represented by formula (II). In the formula, R1 represents CnH2n+1, and n represents an integer of 13 to 20; and R2 represents CnH2n+1, and n represents an integer of 1 to 20. In the formula, R3 and R4 each represent hydrogen (H), an alkyl group having 1 to 50 carbon atoms, or a phenyl group; and a terminal of the polysiloxane compound preferably includes an alkyl group having a smaller number of carbon atoms and preferably excludes a proton, a functional group having a high reactivity with lithium (Li), and the like.

Abstract: A nonaqueous electrolyte battery includes: a positive electrode; a negative electrode; a nonaqueous electrolyte that includes a solvent and an electrolyte salt, the solvent including a halogenated cyclic carbonate of the Formula (1) below, or at least one of unsaturated cyclic carbonates of the Formulae (2) and (3) below; and a polyacid and/or a polyacid compound contained in the battery, where X is a F group or a Cl group, R1 and R2 are each independently a CnH2n+1 group (0?n?4), and R3 is CnH2n+1?mXm (0?n?4, 0?m?2n+1), where R4 and R5 are each independently a CnH2n+1 group (0?n?4), where R6 to R11 are each independently a CnH2n+1 group (0?n?4).

Abstract: A battery capable of improving battery characteristics such as cycle characteristics and high temperature storage characteristics is provided. An anode includes an anode active material which includes Sn or Si as an element. A separator is impregnated with an electrolyte solution, and the electrolyte solution includes an acid anhydride such as succinic anhydride or a derivative thereof. Thereby, a coating is formed on the anode, and the decomposition of the electrolyte solution in the anode can be prevented. An electrolyte solution to which 4-fluoro-1,3-dioxolane-2-one is mixed is more preferably used.

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The nonaqueous electrolyte contains a solvent, an electrolyte salt and an additive. Also, the additive includes an aromatic nitrile compound having two or more nitrogen atoms.

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 battery capable of improving the cycle characteristics even if the thickness of an anode active material layer is increased is provided. The battery includes a cathode, an anode and an electrolytic solution. The anode has an anode active material layer on an anode current collector, and the anode active material layer contains a carbon material and has a thickness of 30 ?m or more. The electrolytic solution contains a solvent and an electrolyte salt, and the solvent contains at least one of sulfone compounds such as a cyclic disulfonic acid anhydride.

Abstract: A nonaqueous electrolytic solution secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent. The nonaqueous solvent contains 80% by mass or more of a cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen and contains a cyclic sulfone compound having any one of structures represented by the following formulae (1) to (4): wherein each of R1 and R2 represents CmH2m where 1?m?4. Also, each of R3 to R10 independently represents CnH2n+1 where 1?n?4.

Abstract: A battery capable of improving battery characteristics such as cycle characteristics is provided. An electrolytic solution is impregnated in a separator. The electrolytic solution contains 4-fluoro-1,3-dioxolane-2-one. Fluorine ion content in the electrolytic solution is preferably from 10 weight ppm to 3200 weight ppm. Thereby, chemical stability of the electrolytic solution is improved, and cycle characteristics are improved. The present invention is effective for the case using an anode active material containing Sn or Si as an element for an anode.

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: A non-aqueous electrolytic solution battery includes a positive electrode, a negative electrode and an electrolytic solution, wherein the non-aqueous electrolytic solution contains two kinds of halogenated cyclic carbonates containing a different halogen element from each other.

Abstract: A battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has a coat on an anode active material layer provided on an anode current collector. The coat contains a metal salt. The metal salt has a hydroxyl group and at least one of a sulfonic acid group and a carboxylic acid group. Thereby, lithium ions are easily inserted in the anode and extracted from the anode, and decomposition of the electrolytic solution is prevented.

Abstract: A nonaqueous electrolyte composition is disclosed. The composition includes a compound with oxygen and halogen coordinated on an element selected from Groups 4 to 15 in the periodic table.

Abstract: A positive-electrode active material for a lithium-ion secondary battery has an average composition expressed by the following formula (1): LixCo1?y?zMyCezOb?aXa ??(1) wherein M represents at least one element selected from the group consisting of boron B, magnesium Mg, aluminum Al, silicon Si, phosphorous P, sulfur S, titanium Ti, chromium Cr, manganese Mn, iron Fe, cobalt Co, nickel Ni, copper Cu, zinc Zn, gallium Ga, yttrium Y, zirconium Zr, molybdenum Mo, silver Ag, tungsten W, indium In, tin Sn, lead Pb, and antimony Sb, X represents a halogen element, and x, y, z, a, and b satisfy 0.2<x?1.2, 0?y?0.1, 0.5<z?5.0, 1.8?b?2.2, and 0?a?1.0, respectively, and the concentration of cerium Ce is higher in the vicinity of the surface than in the inside.

Abstract: A positive electrode for a lithium-ion secondary battery includes a positive-electrode mixture layer, which includes a positive-electrode active material containing lithium composite oxide, a conductive material, and a binder, and a current collector. The positive-electrode mixture layer contains a compound including sulfur and/or phosphorous, a first polymer serving as a main binder, and a second polymer different from the first polymer.

Abstract: A battery capable of improving the cycle characteristics even if the thickness of an anode active material layer is increased is provided. The battery includes a cathode, an anode and an electrolytic solution. The anode has an anode active material layer on an anode current collector, and the anode active material layer contains a carbon material and has a thickness of 30 ?m or more. The electrolytic solution contains a solvent and an electrolyte salt, and the solvent contains at least one of sulfone compounds such as a cyclic disulfonic acid anhydride.

Abstract: A non-aqueous electrolytic solution secondary battery includes a positive electrode, a negative electrode and a non-aqueous electrolytic solution, wherein the non-aqueous electrolytic solution contains a halide of an element selected from the group consisting of Zr and elements belongings to the Group 5, the Group 6 and the Groups 12 to 15 of the Periodic Table.

Abstract: A nonaqueous electrolyte composition containing an electrolyte salt, a nonaqueous solvent and a compound having a phosphorus-hydrogen bond or a phosphorus-carbon bond is provided. Also provided is a nonaqueous electrolyte secondary battery including: a cathode and an anode having a material capable of occluding and releasing lithium ions as a cathode active material and an anode active material, respectively; a nonaqueous electrolyte composition; a separator; and an outer package member for housing the anode, the cathode, the nonaqueous electrolyte composition and the separator. The nonaqueous electrolyte composition includes an electrolyte salt, a nonaqueous solvent and a compound having a phosphorus-hydrogen bond or a phosphorus-carbon bond.

Abstract: An electrolytic solution capable of improving battery characteristics even at high temperature, and a battery using the electrolytic solution are provided. A separator is impregnated with an electrolytic solution. The electrolyic solution includes a cyclic imide salt such as 1,1,2,2,3,3-hexafluoropropane-1,3-disulfonimide lithium and a light metal salt such as difluoro[oxalato-O,O?] lithium borate or bis[oxalato-O,O?] lithium borate. Thereby, the decomposition reaction of the electrolytic solution can be prevented even at high temperature, and the battery characteristics can be improved.