NOVELTY - A nonaqueous electrolyte secondary battery (10) has negative electrode plate having negative electrode mix layer on negative electrode collector (8). The negative electrode mix layer comprises negative electrode active material, binder (A) containing rubber polymer compound as binder, and binder (B) containing water-soluble polymer compound. When cross-section of thickness direction of negative mix layer is divided into electrical power collector-side region and surface-side region, binder (A) is more distributed in electrical power collector-side region than in surface-side region.    USE - Nonaqueous electrolyte secondary battery. Uses include but are not limited to electric vehicle, hybrid electric vehicle, electric tool, drive power supply, photovoltaic power generation, wind power generation and backup power supply.    ADVANTAGE - The nonaqueous electrolyte secondary battery has high capacity and long-term durability in heavy-current cycle.    DETAILED DESCRIPTION - A nonaqueous electrolyte secondary battery has negative electrode plate having negative electrode mix layer formed on negative electrode collector. The negative electrode mix layer comprises negative electrode active material, binder (A) containing rubber polymer compound as binder, and binder (B) containing water-soluble polymer compound. In the nonaqueous electrolyte secondary battery, when cross-section of thickness direction of negative mix layer is divided into electrical power collector-side region and surface-side region, the sum of the peripheral length of the negative electrode active material per unit area of the cross-section is more distributed in the collector-side region than in the surface-side region and the binder (A) is more distributed in the electrical power collector-side region than in the surface-side region.    DESCRIPTION OF DRAWING(S) - The drawing shows a longitudinal cross-sectional view of nonaqueous electrolyte secondary battery.    Positive electrode (1)    Negative electrode (2)    Separator (3)    Negative electrode collector (8)    Nonaqueous electrolyte secondary battery (10)