Abstract: There is provided a positive electrode for nonaqueous electrolyte secondary batteries in which a decrease in the initial charge capacity can be suppressed even when a positive electrode exposed to the air is used. A positive electrode for a nonaqueous electrolyte secondary battery according to an aspect of the present invention contains a lithium transition metal composite oxide represented by general formula Li1+xMnaMbO2+c (in the formula, x, a, b, and c satisfy x+a+b=1, 0<x?0.2, 0.09?a, and ?0.1?c?0.1, and M is at least one element selected from the group consisting of transition metal elements other than Mn, alkali metal elements, alkaline-earth metal elements, group 12 elements, group 13 elements, and group 14 elements) and also contains tungsten oxide and a phosphate compound.

Abstract: There is provided a positive electrode for nonaqueous electrolyte secondary batteries in which a decrease in the initial charge capacity can be suppressed even when a positive electrode exposed to the air is used. A positive electrode for a nonaqueous electrolyte secondary battery according to an aspect of the present invention contains a lithium transition metal composite oxide represented by general formula Li1+xMnaMbO2+c (in the formula, x, a, b, and c satisfy x+a+b=1, 0<x?0.2, 0.09?a, and ?0.1?c?0.1, and M is at least one element selected from the group consisting of transition metal elements other than Mn, alkali metal elements, alkaline-earth metal elements, group 12 elements, group 13 elements, and group 14 elements) and also contains tungsten oxide and a phosphate compound.

Abstract: The electrode for the nonaqueous electrolyte secondary battery includes a current collector and an active material layer formed on the current collector. The active material layer contains active material particles each coated with a conductive carbon material layer, a surfactant as a dispersant, and conductive carbon material particles.

Abstract: A non-aqueous electrolyte secondary battery using lithium-containing transition metal composite oxide which has a layer structure, contains a lot of Ni and Mn and is inexpensive as a positive electrode active material and attaining high output characteristics even under low temperature environment is provided. The non-aqueous electrolyte secondary battery includes a positive electrode 11 containing a positive electrode active material, a negative electrode 12 containing a negative electrode active material and a non-aqueous electrolyte 14 having lithium ion conductivity, wherein lithium-containing transition metal composite oxide having a layer structure and being represented by a general formula Li1+xNiaMnbCocO2+d wherein x, a, b, c and d satisfy x+a+b+c=1, 0.25?a?0.60, 0.25?b?0.60, 0?c?0.40, 0?x?0.10, 0.7?a/b?2.0 and ?0.1?d?0.

Abstract: A method for manufacturing a lithium battery is provided. The battery includes electrodes formed of a layer of an active material, the active material being capable of occluding and discharging lithium electrochemically, provided on the surface of a current collector, electrode external terminals for providing electricity to the outside of the battery, and an electrode tab joined at an end thereof to a surface of said current collector and at another end thereof to an electrode external terminal. The electrode tab has a roughened surface at the end joined to the current collector, and the roughened surface is welded to the surface of said current collector. The roughened surface is produced by chemical etching, abrasion by an abrasive, abrasion by ultrasonic waves or by blasting with an abrasive.

Abstract: A lithium battery and method for manufacturing the lithium battery are provided. The battery includes electrodes formed of a layer of an active material, the active material being capable of occluding and discharging lithium electrochemically, provided on the surface of a current collector, electrode external terminals for providing electricity to the outside of the battery, and an electrode tab joined at an end thereof to a surface of said current collector and at another end thereof to an electrode external terminal. The electrode tab has a roughened surface at the end joined to the current collector, and the roughened surface is welded to the surface of said current collector. The roughened surface is produced by chemical etching, abrasion by an abrasive, abrasion by ultrasonic waves or by blasting with an abrasive.