Abstract: Provided is a positive electrode active material that is capable of improving output characteristics when used as positive electrode material for a non-aqueous electrolyte secondary battery. A lithium mixture that is obtained by adding and mixing a lithium compound to a transition metal composite hydroxide that was obtained from a crystallization reaction undergoes calcination in an atmosphere having an oxygen concentration of 4% by volume or greater. In this calcination process, carbon dioxide gas concentration in the atmosphere while the temperature is maintained at a calcination temperature is kept at 10% by volume or less, and preferably kept at 0.01% by volume to 10% by volume. As a result, positive electrode active material is obtained that includes a lithium transition metal composite oxide that is composed of secondary particles that are formed from aggregates of plural primary particles, and that has a carbon content of 0.010% by mass to 0.100% by mass.

Abstract: A non-aqueous electrolyte secondary battery is provided that has both good safety and durability characteristics while at the same time has high charge/discharge capacity. The cathode active material for a non-aqueous electrolyte secondary battery of the present invention is a lithium nickel composite oxide to which at least two or more kinds of metal elements including aluminum are added, and comprises secondary particles that are composed of fine secondary particles having an average particle size of 2 ?m to 4 ?m, and rough secondary particles having an average particle size of 6 ?m to 15 ?m, with an overall average particle size of 5 ?m to 15 ?m; where the aluminum content of fine secondary particles (metal mole ratio: SA) is greater than the aluminum content of rough secondary particles (metal mole ratio: LA), and preferably the aluminum concentration ratio (SA/LA) is within the range 1.2 to 2.6.

Abstract: A non-aqueous electrolyte secondary battery is provided that has both good safety and durability characteristics while at the same time has high charge/discharge capacity. The cathode active material for a non-aqueous electrolyte secondary battery of the present invention is a lithium nickel composite oxide to which at least two or more kinds of metal elements including aluminum are added, and comprises secondary particles that are composed of fine secondary particles having an average particle size of 2 ?m to 4 ?m, and rough secondary particles having an average particle size of 6 ?m to 15 ?m, with an overall average particle size of 5 ?m to 15 ?m; where the aluminum content of fine secondary particles (metal mole ratio: SA) is greater than the aluminum content of rough secondary particles (metal mole ratio: LA), and preferably the aluminum concentration ratio (SA/LA) is within the range 1.2 to 2.6.

Abstract: A non-aqueous electrolyte secondary battery is provided that has both good safety and durability characteristics while at the same time has high charge/discharge capacity. The cathode active material for a non-aqueous electrolyte secondary battery of the present invention is a lithium nickel composite oxide to which at least two or more kinds of metal elements including aluminum are added, and comprises secondary particles that are composed of fine secondary particles having an average particle size of 2 ?m to 4 ?m, and rough secondary particles having an average particle size of 6 ?m to 15 ?m, with an overall average particle size of 5 ?m to 15 ?m; where the aluminum content of fine secondary particles (metal mole ratio: SA) is greater than the aluminum content of rough secondary particles (metal mole ratio: LA), and preferably the aluminum concentration ratio (SA/LA) is within the range 1.2 to 2.6.

Abstract: Provided is a positive electrode active material that is capable of improving output characteristics when used as positive electrode material for a non-aqueous electrolyte secondary battery. A lithium mixture that is obtained by adding and mixing a lithium compound to a transition metal composite hydroxide that was obtained from a crystallization reaction undergoes calcination in an atmosphere having an oxygen concentration of 4% by volume or greater. In this calcination process, carbon dioxide gas concentration in the atmosphere while the temperature is maintained at a calcination temperature is kept at 10% by volume or less, and preferably kept at 0.01% by volume to 10% by volume. As a result, positive electrode active material is obtained that includes a lithium transition metal composite oxide that is composed of secondary particles that are formed from aggregates of plural primary particles, and that has a carbon content of 0.010% by mass to 0.100% by mass.

Abstract: Provided is a cathode active material for a non-aqueous electrolyte secondary battery capable of obtaining high initial discharge capacity and good output characteristics at low temperature. In order to achieve this, a cathode active material that is a lithium nickel composite oxide composed of secondary particles that are an aggregate of primary particles is expressed by the general expression: Liw(Ni1-x-yCoxAly)1-zMzO2 (where 0.98?w?1.10, 0.05?x?0.3, 0.01?y?0.1, 0?z?0.05, and M is at least one metal element selected from a group consisting of Mg, Fe, Cu, Zn and Ga), and where the crystallite diameter at (003) plane of that lithium nickel composite oxide that is found by X-ray diffraction and the Scherrer equation is within the range of 1200 ? to 1600 ? is used as the cathode material.

Abstract: Disclosed is a nonaqueous secondary battery (100) comprising a positive electrode (155) having a positive current collector (151) made of a metal, and a positive electrode active material (153) composed of a lithium-metal complex oxide. The surface of the positive electrode active material (153) is coated with a lithium salt (158) having an average thickness of 20-50 nm.

Abstract: Provided is a cathode active material for a non-aqueous electrolyte secondary battery capable of obtaining high initial discharge capacity and good output characteristics at low temperature. In order to achieve this, a cathode active material that is a lithium nickel composite oxide composed of secondary particles that are an aggregate of primary particles is expressed by the general expression: Liw(Ni1-x-yCoxAly)1-zMzO2 (where 0.98?w?1.10, 0.05?x?0.3, 0.01?y?0.1, 0?z?0.05, and M is at least one metal element selected from a group consisting of Mg, Fe, Cu, Zn and Ga), and where the crystallite diameter at (003) plane of that lithium nickel composite oxide that is found by X-ray diffraction and the Scherrer equation is within the range of 1200 ? to 1600 ? is used as the cathode material.

Abstract: Provided is a cathode active material for a non-aqueous electrolyte secondary battery capable of obtaining high initial discharge capacity and good output characteristics at low temperature. In order to achieve this, a cathode active material that is a lithium nickel composite oxide composed of secondary particles that are an aggregate of primary particles is expressed by the general expression: Liw(Ni1-x-yCoxAly)1-zMzO2 (where 0.98?w?1.10, 0.05?x?0.3, 0.01?y?0.1, 0?z?0.05, and M is at least one metal element selected from a group consisting of Mg, Fe, Cu, Zn and Ga), and where the crystallite diameter at (003) plane of that lithium nickel composite oxide that is found by X-ray diffraction and the Scherrer equation is within the range of 1200 {acute over (?)} to 1600 {acute over (?)} is used as the cathode material.

Abstract: Provided is a cathode active material for a non-aqueous electrolyte secondary battery capable of obtaining high initial discharge capacity and good output characteristics at low temperature. In order to achieve this, a cathode active material that is a lithium nickel composite oxide composed of secondary particles that are an aggregate of primary particles is expressed by the general expression: Liw(Ni1-x-yCoxAly)1-zMzO2 (where 0.98?w?1.10, 0.05?x?0.3, 0.01?y?0.1, 0?z?0.05, and M is at least one metal element selected from a group consisting of Mg, Fe, Cu, Zn and Ga), and where the crystallite diameter at (003) plane of that lithium nickel composite oxide that is found by X-ray diffraction and the Scherrer equation is within the range of 1200 {acute over (?)} to 1600 {acute over (?)} is used as the cathode material.

Abstract: A non-aqueous electrolyte secondary battery is provided that has both good safety and durability characteristics while at the same time has high charge/discharge capacity. The cathode active material for a non-aqueous electrolyte secondary battery of the present invention is a lithium nickel composite oxide to which at least two or more kinds of metal elements including aluminum are added, and comprises secondary particles that are composed of fine secondary particles having an average particle size of 2 ?m to 4 ?m, and rough secondary particles having an average particle size of 6 ?m to 15 ?m, with an overall average particle size of 5 ?m to 15 ?m; where the aluminum content of fine secondary particles (metal mole ratio; SA) is greater than the aluminum content of rough secondary particles (metal mole ratio: LA), and preferably the aluminum concentration ratio (SA/LA) is within the range 1.2 to 2.6.

Abstract: Disclosed is a nonaqueous secondary battery (100) comprising a positive electrode (155) having a positive current collector (151) made of a metal, and a positive electrode active material (153) composed of a lithium-metal complex oxide. The surface of the positive electrode active material (153) is coated with a lithium salt (158) having an average thickness of 20-50 nm.

Abstract: To provide a positive electrode active material for a non-aqueous electrolyte secondary battery, which can achieve high capacity and high output simultaneously, and a non-aqueous electrolyte secondary battery using the same. A non-aqueous electrolyte secondary battery is obtained by using as a positive electrode, a positive electrode active material for a non-aqueous electrolyte secondary battery, which is expressed by the general formula: Lix(Ni1-yCoy)1-zMzO2 (0.98?x?1.10, 0.05?y?0.4, 0.01?z?0.2, M=at least one element selected from the group of Al, Zn, Ti and Mg), and which has a Li site occupancy of the Li site in crystal of 98.5% or more, and a metal site occupancy of the metal site of from 95% to 98% inclusive, obtained by Rietveld analysis.