Abstract: A nonaqueous electrolyte secondary battery that includes a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; a nonaqueous electrolytic solution, an exterior body that houses the electrodes, the separator, and the solution a positive electrode terminal electrically connected to the positive electrode and extended outside the exterior body; and a negative electrode terminal electrically connected to the negative electrode and extended outside the exterior body. The nonaqueous electrolytic solution contains an imide salt of perfluoroalkanesulfonic acid; the negative electrode contains a noble negative electrode active material that has a lithium occlusion/release potential of 1.0 V (vs Li/Li+) or higher, and the battery voltage is 0 V to 1.0 V.

Abstract: A module includes a charging circuit and a driven unit. The charging circuit includes a power generation element and an electric storage element. The power generation element is connected to the electric storage element to charge the electric storage element. The electric storage element is connected to the driven unit to drive the driven unit with electric power stored. The power-generating voltage of the power generation element has a value equal to or more than the charging voltage of the electric storage element. The electric storage element is a secondary battery including a lithium-transition metal oxide in a positive electrode active material layer, and a lithium-titanium oxide of spinel-type crystal structure in a negative electrode active material layer.