Abstract: The present invention provides a positive electrode for nonaqueous electrolyte secondary batteries, the positive electrode having improved adhesion, while suppressing variation in battery characteristics. A positive electrode for nonaqueous electrolyte secondary batteries according to one embodiment of the present disclosure comprises a positive electrode collector and a positive electrode mixture layer that is formed on the surface of the positive electrode collector; the positive electrode mixture layer contains a positive electrode active material, a conductive agent and a binder; the weight average molecular weight of the binder is 1,300,000 or more; and D10 and D90 in the particle size distribution of the binder satisfy (D90-D10)?100 ?m.

Abstract: A non-aqueous electrolyte secondary battery according to one embodiment of the present invention is provided with a positive electrode, a negative electrode, a non-aqueous electrolyte and a cladding. The cladding has a safety mechanism which operates when the internal pressure reaches a predetermined value. The positive electrode includes a positive electrode core and a positive electrode mixture layer formed on the positive electrode core. The positive electrode mixture layer includes a positive electrode active material, and 0.05-2 mass % of lithium carbonate relative to the mass of the positive electrode active material, and the lithium carbonate is present in a non-uniform concentration distribution in the thickness direction of the positive electrode mixture layer.