NOVELTY - A nonaqueous electrolyte secondary battery (10) has a electric power-generating element (21) containing a positive electrode obtained by forming a positive electrode active material layer (15) on surface of a positive electrode collector, a negative electrode obtained by forming a negative electrode active material layer (13) on surface of a negative electrode collector (11), separator (17) which is positioned layers (13 and 15), and an electrolyte liquid layer (16) which is positioned between separator and layer(s) chosen from layer (13) and layer (15).    USE - Nonaqueous electrolyte secondary battery e.g. nonaqueous electrolyte lithium-ion secondary battery is used for electric vehicle, hybrid electric vehicle, and fuel-cell vehicle.    ADVANTAGE - The nonaqueous electrolyte secondary battery has excellent capacity even when used for a long period of time, and cycle characteristics. The generated gases are efficiently discharged to outside the electrode, when using aqueous binder as binder for the anode active material.    DETAILED DESCRIPTION - A nonaqueous electrolyte secondary battery has a electric power-generating element containing a positive electrode obtained by forming a positive electrode active material layer on surface of a positive electrode current-collector, a negative electrode obtained by forming a negative electrode active material layer on surface of a negative electrode current-collector, a separator which is positioned between the positive electrode active material layer and the negative electrode active material layer, and an electrolyte liquid layer which is positioned between the separator and layer(s) chosen from negative electrode active material layer and positive electrode active material layer. The density of negative electrode active material layer is 1.4-1.6 g/cm3. The negative electrode active material layer contains an aqueous binder. The ratio of total thickness of the positive electrode, negative electrode and separator is 0.85-1 (excluding 1) with respect to total thickness of positive electrode, negative electrode, separator and electrolyte liquid layer.    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)    Electrolyte liquid layer (16)    Separator (17)    Electric power-generating element (21)    Exterior component (29)