NOVELTY - A flat-plate-stacked-type nonaqueous electrolyte secondary battery (10) has electric power-generating element (21) containing positive electrode, negative electrode and separator (17). The positive electrode is obtained by forming positive electrode active material layer (15) on surface of positive electrode collector. The negative electrode is obtained by forming negative electrode active material layer (13) on surface of negative electrode collector (11). The layer (13) contains 2-4 %mass aqueous binder with respect to total mass of layer (13).    USE - Nonaqueous electrolyte secondary battery e.g. nonaqueous electrolyte lithium-ion secondary battery. Uses include but are not limited to electric vehicle, hybrid electric vehicle, fuel-cell vehicle, mobile telephone, and notebook personal computer.    ADVANTAGE - The nonaqueous electrolyte secondary battery has excellent vibration resistance, capacitance, durability and cycle characteristics. The peeling strength of negative electrode collector and negative electrode active material layer is improved.    DETAILED DESCRIPTION - A flat-plate-stacked-type nonaqueous electrolyte secondary battery has an electric power-generating element containing a positive electrode, a negative electrode and a separator. The positive electrode is obtained by forming a positive electrode active material layer on surface of a positive electrode collector. The negative electrode is obtained by forming a negative electrode active material layer on surface of a negative electrode collector. The layer (13) contains 2-4 %mass aqueous binder with respect to total mass of layer (13). The layer (13) has a rectangular shape, and the ratio of the length of the long side to the length of the short side in the rectangle is 1-1.25.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of nonaqueous electrolyte lithium-ion secondary battery.    Nonaqueous electrolyte secondary battery (10)    Negative electrode collector (11)    Negative electrode active material layer (13)    Positive electrode active material layer (15)    Separator (17)    Electric power-generating element (21)