Abstract: With respect to a positive electrode mixture layer that is contained in a nonaqueous electrolyte secondary battery, a positive electrode active material comprises a lithium-containing composite oxide that has a layered rock salt structure; the lithium-containing composite oxide contains at least Ni, Ca and Sr; with respect to the lithium-containing composite oxide, the molar ratio (Ca/Sr ratio) of the content of Ca to the content of Sr is 1 or more; the sum of the content of Ca and the content of Sr in the lithium-containing composite oxide is 0.05% by mole to 1% by mole relative to the total number of moles of metal elements in the lithium-containing composite oxide excluding Li, Ca and Sr; a conductive agent contains at least carbon fibers; the length of the carbon fibers is 0.5 ?m or more; and the aspect ratio of the carbon fibers is 40 or more.

Abstract: Provided are a cathode active material having a suitable particle size and high uniformity, and a nickel composite hydroxide as a precursor of the cathode active material. When obtaining nickel composite hydroxide by a crystallization reaction, nucleation is performed by controlling a nucleation aqueous solution that includes a metal compound, which includes nickel, and an ammonium ion donor so that the pH value at a standard solution temperature of 25° C. becomes 12.0 to 14.0, after which, particles are grown by controlling a particle growth aqueous solution that includes the formed nuclei so that the pH value at a standard solution temperature of 25° C. becomes 10.5 to 12.0, and so that the pH value is lower than the pH value during nucleation.

Abstract: A positive electrode active material which is to be included in this nonaqueous electrolyte secondary battery and contains a lithium-containing complex oxide having a prescribed composition which has a layered evaporitic structure, wherein: the lithium-containing complex oxide contains secondary particles formed by clumping primary particles with one another; and a sulfonic acid compound represented by general formula I, one or more types of element selected from Ca and Sr, and one or more types of element selected from W, Mo, Ti, Si, Nb and Zr are present on the surface of the secondary particles or at the interface between the primary particles. (In the formula, A is a Group 1 element or a Group 2 element, R is a hydrocarbon group, and n is 1 or 2.

Abstract: This positive electrode active material for nonaqueous electrolyte secondary batteries comprises a lithium-transition metal composite oxide and a surface modification layer. The lithium transition metal composite oxide contains at least Al and 80 mol % or more Ni with reference to the total number of moles of metal elements excluding Li, and the surface modification layer contains at least Sr and is formed on the surface of primary particles of the lithium-transition metal composite oxide.

Abstract: Provided is a composition containing: a polymer (I) having a polymerization unit (I) based on a monomer (I) represented by general formula (I); and a fluoroelastomer, wherein a content of the polymer (I) is 0.0001 to 1.0% by mass based on the fluoroelastomer: CX1X3?CX2R(—CZ1Z2-A0)m??(I) wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.

Abstract: The present invention provides a positive electrode active material which has high capacity and improved initial charge and discharge efficiency. This positive electrode active material, which is contained in nonaqueous electrolyte secondary batteries, contains a lithium-containing composite oxide that has a layered rock salt structure and a sulfonic acid compound that is present on the surface of the lithium-containing composite oxide; the lithium-containing composite oxide contains 50% by mole or more of Ni, 0% by mole to 15% by mole of Co and 0% by mole to 4% by mole of Al relative to the total number of moles of metal elements other than Li; and the sulfonic acid compound is represented by general formula I. (In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n represents 1 or 2.

Abstract: Provided is a positive electrode active material having high capacity and reduced reaction resistance of a battery. This positive electrode active material for a non-aqueous electrolyte secondary battery includes a lithium-containing composite oxide that has a layered rock salt structure and a sulfonic acid compound present on the surface of the lithium-containing composite oxide, wherein: the lithium-containing composite oxide contains at least 85 mol % of Ni, at least 4 mol % of Al, and 0-1.5 mol % of Co relative to the total mole number of metal elements excepting Li; and the sulfonic acid compound is represented by general formula I. (In the formula, A is a group 1 element or a group 2 element, R is a hydrocarbon group, and n is 1 or 2.

Abstract: Provided is a positive electrode active material having a high capacity and improved output characteristics. The positive electrode active material included in this non-aqueous electrolyte secondary battery includes a lithium-containing complex oxide having a layered rock salt structure, and a sulfonic acid compound that is present on the surface of the lithium-containing complex oxide. The lithium-containing complex oxide contains 80 mol % or more of Ni, 1.5 mol % or more of Co, and 4 mol % or more of Al based on the total molar number of metal elements excluding Li. The sulfonic acid compound is represented by the general formula I. (In the formula, A is a Group 1 element or a Group 2 element, R is a hydrocarbon group, and n is 1 or 2.

Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0<r?0.25, in which |Ia| is absolute value dQ/dV for a peak top within a range of more than 3.9V to 4.4V or less, |Ib| is absolute value dQ/dV for a peak top within a range of more than 3.5V to 3.9V or less, and |Ic| is absolute value dQ/dV for a peak top within a range of 2.0V or more to 3.5V or less.

Abstract: This non-aqueous electrolyte secondary battery comprises: an electrode body in which a strip-shaped positive electrode and a strip-shaped negative electrode are wound with a separator interposed therebetween; a bottomed cylindrical exterior body having an outer diameter of 25 mm or more, that is connected to the negative electrode; and a sealing body that seals an opening at the upper end of the exterior body and is connected to the positive electrode. The positive electrode includes a positive-electrode current collector, and a positive-electrode mixture layer formed on the surface of the positive-electrode current collector, the positive-electrode mixture layer containing a positive-electrode active material and a phosphorus compound. The positive-electrode active material includes a lithium-containing composite oxide having a layered rock-salt structure. The weight per unit area of the positive-electrode mixture layer is 250 g/m2 or more.

Abstract: A molecular memory recording molecular polarization of a single-molecule electret, and the single-molecule electret includes a cluster skeleton 100 having a continuous hole 101 and a plurality of stable ionic sites 102a, 102b and a metal ion M. The molecular polarization is shown in a state in which the metal ion is included in the stable ionic site. The molecular polarization is changed by movement of the metal ion to the other hollow stable ionic site by application of an electric field. The recordkeeping time of the molecular memory in a temperature range of ?100° C. to 100° C. based on the ion radius of the metal ion is 3.0×10?2 seconds to 9.1×1022 seconds. Based on the recordkeeping time, the molecular memory is used as any of a volatile memory, a non-volatile memory, and a storage class memory.

Abstract: A positive electrode active material for non-aqueous electrolyte secondary batteries according to an example embodiment of the present invention comprises a lithium transition metal composite oxide having a layered structure and containing not less than 75 mol % of Ni with respect to the total molar quantity of elements excluding Li and O. The lithium transition metal composite oxide is of secondary particles obtained by aggregation of primary particles. A compound represented by the general formula AxByOz (where 1?x?2, 1?y?5, 4?z?9, A is at least one element selected from among Ca and Sr, and B is at least one element selected from among W, Mo, Ti, Si, Nb, and Zr) is adhered at at least the interface between primary particles inside the secondary particles.

Abstract: This positive-electrode active material for non-aqueous electrolyte secondary batteries is provided with: an electrode assembly; a bottomed cylindrical exterior body having an outer diameter of 25 mm or more, that houses the electrode assembly and is connected to a negative electrode; and, a sealing body that seals an opening at the upper end of the exterior body and is connected to a positive electrode. The positive electrode includes a positive-electrode current collector, and a positive-electrode mixture layer formed on the surface of the positive-electrode current collector and containing a positive-electrode active material and an electroconductive agent. The positive-electrode active material includes a lithium-containing composite oxide having a chalcogen compound and/or a halogen compound adhered to the surface and a layered rock salt structure. Area basis weight of the positive-electrode mixture layer is 250 g/m2 or more. In the electrode assembly, three or more positive-electrode leads are led out.

Abstract: This positive electrode included in an electrode assembly includes a positive electrode current collector and a positive electrode mixture laver which is formed on the surface of the positive electrode current collector and which includes a positive electrode active material and a conductive agent. The positive electrode active material contains a lithium-containing complex oxide. The lithium-containing complex oxide has a layered rock salt structure, contains substantially no Co, and contains at least Ni and Mn. The Ni content in the lithium-containing complex oxide is not less than 70 mol % with respect to the total number of moles of metal elements excluding Li. The basis weight of the positive electrode mixture layer is not less than 250 g/m2. Three or more positive electrode leads are drawn out in the electrode assembly.

Abstract: Provided are a cathode active material having a suitable particle size and high uniformity, and a nickel composite hydroxide as a precursor of the cathode active material. When obtaining nickel composite hydroxide by a crystallization reaction, nucleation is performed by controlling a nucleation aqueous solution that includes a metal compound, which includes nickel, and an ammonium ion donor so that the pH value at a standard solution temperature of 25° C. becomes 12.0 to 14.0, after which, particles are grown by controlling a particle growth aqueous solution that includes the formed nuclei so that the pH value at a standard solution temperature of 25° C. becomes 10.5 to 12.0, and so that the pH value is lower than the pH value during nucleation.

Abstract: Provided is a positive electrode active substance that increases the discharge capacity of a battery. This positive electrode for a non-aqueous electrolyte secondary battery comprises a positive electrode current collector and a positive electrode mixture layer formed on the surface of the positive electrode current collector. The positive electrode mixture layer contains: a positive electrode active substance that includes a lithium transition metal complex oxide with a layered halite structure; and a phosphate. The lithium transition metal complex oxide contains at least nickel and aluminum, and calcium and/or strontium; the content ratio of nickel in the lithium transition metal complex oxide is at least 75 mol % relative to the total amount of metal elements other than lithium; and the phosphate content of the positive electrode mixture layer, if the positive electrode active substance content is 100 parts by mass, is 0.1-5 parts by mass.

Abstract: Provided are a cathode active material having a suitable particle size and high uniformity, and a nickel composite hydroxide as a precursor of the cathode active material. When obtaining nickel composite hydroxide by a crystallization reaction, nucleation is performed by controlling a nucleation aqueous solution that includes a metal compound, which includes nickel, and an ammonium ion donor so that the pH value at a standard solution temperature of 25° C. becomes 12.0 to 14.0, after which, particles are grown by controlling a particle growth aqueous solution that includes the formed nuclei so that the pH value at a standard solution temperature of 25° C. becomes 10.5 to 12.0, and so that the pH value is lower than the pH value during nucleation.

Abstract: Provided is a positive electrode for a non-aqueous electrolyte secondary battery, the positive electrode comprising: a positive electrode current collector; and a positive electrode mixture layer formed on the surface of the positive electrode current collector. The positive electrode mixture layer contains at least carbon fibers and a positive electrode active material containing a lithium-transition metal composite oxide, wherein the lithium-transition metal composite oxide has a layered rock salt structure, is substantially free of Co, and contains at least Ni, Al, and Sr.

Abstract: A positive electrode active material for nonaqueous electrolyte secondary batteries comprises a lithium transition metal composite oxide that has secondary particles each formed from aggregated primary particles and a surface modification layer that is formed on the surface of each of the primary particles of the lithium transition metal composite oxide, in which the lithium transition metal composite oxide contains at least Al and Ni in an amount of 80 mol % or more relative to the total number of moles of metal elements excluding Li, the surface modification layer contains W and at least one of Sr and Ca, and the content of W in the surface modification layer is 0.075 mol % or less relative to the total number of moles of the metal elements excluding Li in the lithium transition metal composite oxide.

Abstract: A positive electrode active material contains a lithium transition metal composite oxide that contains 85% by mole or more of Ni relative to the total number of moles of metal elements excluding Li and at least one metal element M1 that is selected from among Mg, Ti, Nb, Zr and V in an amount of 3% by mole or less relative to the total number of moles of metal elements excluding Li. The ratio of the concentration of metal element M1 contained in the shell of each primary particle of the composite oxide to the concentration of metal element M1 contained in the core is from 1.01 to 20; and at least one metal element M2 of Ca and Sr is on the surface of each primary particle in an amount of 1% by mole or less relative to the total number of moles of metal elements excluding Li.