Abstract: An electrode mixture for batteries according to one embodiment contains a binder and an active material which is capable of absorbing and desorbing lithium ions. This electrode mixture additionally contains a layered silicate salt compound; and the content of the layered silicate salt compound is more than 0.1% by mass, and preferably less than 0.9% by mass relative to the mass of the active material. One example of the layered silicate salt compound is at least one kind of smectite. In addition, it is preferable that this electrode mixture additionally contains carbon nanotubes.

Abstract: Provided is a secondary battery comprising a cathode comprising a cathode current collector and a cathode mixture layer containing and a cathode active material, an anode comprising an anode current collector and coating layer, and a non-aqueous electrolyte containing a non-aqueous solvent and a lithium salt which has been dissolved in the non-aqueous solvent. A surface of the anode current collector is coated with the coating layer. The coating layer contains an alkaline earth metal fluoride. During charge, a lithium metal is deposited on the anode. During discharge, the lithium metal is dissolved in the non-aqueous electrolyte.

Abstract: An electrode mixture for a battery according to an embodiment of the present invention comprises an active material capable of intercalation and deintercalation of lithium, and an ionic compound bonded to the surface of the active material. The ionic compound contains a binding site to the active material, an organic cation, and a counter anion for the organic cation. The binding site is derived from, for example, a hydrolyzable silyl group. In addition, the content of the suitable ionic compound is, for example, 0.2-1.8 mass % with respect to the mass of the active material.

Abstract: An alkoxysilyl compound includes two or more silyl groups bonded with a chain including an ether group, wherein the two or more silyl groups each has at least one selected from the group consisting of an alkoxy group and an oxy alkyl group. The alkoxysilyl compound is added to a non-aqueous electrolyte as an additive for a non-aqueous electrolyte.

Abstract: This negative electrode active material for secondary batteries contains a silicon composite material which is provided with a lithium ion conductive phase that contains silicon, and silicon particles that are dispersed in the lithium ion conductive phase. The silicon composite material contains a nitrogen-containing compound in the surface; and the nitrogen-containing compound is represented by general formula LimSiOxNyMz (wherein 0?m?1, 0?x?2.5, 0.025?y?1.33, 0?z?0.5, and M represents a metal element other than Si and Li).

Abstract: Provided is a cathode active material comprising particles each containing a lithium composite oxide; and a coating layer containing an ammonium phosphate compound and coating each of the particles.

Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte, wherein the positive electrode includes a composite oxide containing lithium and a transition metal, and an additive covering at least a portion of a surface of the composite oxide; the additive includes a cyclic inorganic phosphoric acid compound, the nonaqueous electrolyte includes lithium ion and an anion, and the anion includes an anion of an oxalate complex.

Abstract: A positive electrode for a nonaqueous electrolyte secondary battery includes a composite oxide containing lithium and a transition metal, and an additive covering at least a portion of a surface of the composite oxide, wherein the additive includes a cyclic inorganic phosphoric acid compound.

Abstract: An additive for a nonaqueous electrolyte includes a bis-alkoxysilyl compound, wherein the bis-alkoxysilyl compound has two silyl groups coupled with a chain including a sulfide group, the two silyl groups each has at least one selected from the group consisting of an alkoxy group and an oxyalkyl group, and the oxyalkyl group is represented by —O—(CxH2x+1Oy), where x is an integer of 1 or more, and y is an integer of 1 or more.

Abstract: A negative electrode for a secondary battery includes a negative electrode mixture layer having a negative electrode active material, a first layer covering at least a portion of a surface of the negative electrode active material, and a second layer covering at least a portion of a surface of the first layer, wherein the first layer includes a carbon material, and the second layer includes silicone.

Abstract: An additive for a nonaqueous electrolyte includes a bis-alkoxysilyl compound having two or more silyl groups coupled with an alkylene group or an amino group, the two or more silyl groups each has at least one selected from the group consisting of an alkoxy group and an oxyalkyl group, and the oxyalkyl group is represented by —O—(CxH2x+1Oy), where x is an integer of 1 or more, and y is an integer of 1 or more.

Abstract: Provides is a cathode active material comprising particles each containing a lithium composite oxide, a coating layer containing an ammonium phosphate compound containing a metal other than lithium. The coating layer coats each of the particles. The metal other than lithium includes at least one selected from the group consisting of manganese, nickel, and cobalt.

Abstract: Provided is a battery including: a positive electrode containing a positive electrode active material; a negative electrode; and an electrolyte solution containing a nonaqueous solvent. The positive electrode active material contains a compound represented by composition formula (1) below and having a crystal structure belonging to space group FM3-M: LixMeyO?F?. (1) Here, Me is one or two or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, B, Ce, Si, Zr, Nb, Pr, Ti, W, Ge, Mo, Sn, Bi, Cu, Mg, Ca, Ba, Sr, Y, Zn, Ga, Er, La, Sm, Yb, V, and C. x, y, ?, and ? satisfy the following conditions: 1.7?x?2.2, 0.8?y?1.3, 1???2.5, and 0.5???2, respectively. The nonaqueous solvent includes at least one solvent selected from hydrofluoroethers, phosphazenes, phosphates, and perfluoropolyethers.

Abstract: This separator for nonaqueous electrolyte secondary batteries contains a polymer compound and a solid electrolyte, and has a pore volume of 0.06 cm3/gor less.

Abstract: An aluminum foil comprising an aluminum foil substrate that has a porous region, wherein the porous region is formed throughout the entirety of the aluminum foil substrate in the thickness direction thereof.

Abstract: Provided is a lithium secondary battery comprising a cathode, an anode, and a non-aqueous electrolyte having lithium ion conductivity. A lithium metal is precipitated on a surface of the anode during charge of the lithium secondary battery. The lithium metal is dissolved from the surface of the anode in the non-aqueous electrolyte during discharge of the lithium secondary battery. The non-aqueous electrolyte contains a solvent and a lithium salt. The solvent includes a fluorinated ether. The fluorinated ether has a fluorination ratio of more than 0% and not more than 60%.

Abstract: A nonaqueous electrolyte includes a nonaqueous solvent and an alkali metal salt dissolved in the nonaqueous solvent. The nonaqueous solvent contains a perfluoropolyether and a nitrile compound represented by a formula Rf—CN, where Rf represents a hydrocarbon group which has a carbon number of 2 to 4 and in which at least one hydrogen atom is substituted with fluorine.

Abstract: Provided is a battery including: a positive electrode containing a positive electrode active material; a negative electrode; and an electrolyte solution containing a nonaqueous solvent. The positive electrode active material contains a compound represented by composition formula (1) below and having a crystal structure belonging to space group FM3-M: LixMeyO?F?. (1) Here, Me is one or two or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, B, Ce, Si, Zr, Nb, Pr, Ti, W, Ge, Mo, Sn, Bi, Cu, Mg, Ca, Ba, Sr, Y, Zn, Ga, Er, La, Sm, Yb, V, and C. x, y, ?, and ? satisfy the following conditions: 1.7?x?2.2, 0.8?y?1.3, 1???2.5, and 0.5???2, respectively. The nonaqueous solvent includes at least one solvent selected from hydrofluoroethers, phosphazenes, phosphates, and perfluoropolyethers.

Abstract: Provides is a cathode active material comprising particles each containing a lithium composite oxide, a coating layer containing an ammonium phosphate compound containing a metal other than lithium. The coating layer coats each of the particles. The metal other than lithium includes at least one selected from the group consisting of manganese, nickel, and cobalt.

Abstract: A cathode active material comprising a particle containing a lithium composite oxide, and a coating layer containing an ammonium phosphate compound and a polymer containing a structure unit represented by the following formula (1): where R is a hydrogen atom or a methyl group, wherein the particle is coated with the coating layer.