POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME, AND POSITIVE ELECTRODE SLURRY FOR POSITIVE ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES

A disclosed positive electrode for a nonaqueous electrolyte secondary battery includes a positive electrode mixture layer. The positive electrode mixture layer contains at least one compound selected from the group consisting of carboxylic acids and carboxylic acid anhydrides, a positive-electrode active material, a conductive material, a fluorine-containing polymer, and a dispersant. The positive-electrode active material includes a composite oxide represented by a composition formula LiNiMO(where x, y, and δ satisfy 0.6≤x≤1, 0