Honda Motor Co., Ltd.
ALL-SOLID-STATE LITHIUM-ION SECONDARY BATTERY AND LEAK INSPECTION METHOD USING SAME

Abstract:

An all-solid-state lithium-ion secondary battery which enables a leak inspection to be swiftly and simply performed is provided. The all-solid-state lithium-ion secondary battery includes an electrode laminate in which a positive electrode, a solid electrolyte layer, and a negative electrode are alternatingly laminated and disposed, a tab gathering section extended from the electrodes, and an exterior film which clads the electrode laminate and the tab gathering section. The electrode laminate and the tab gathering section are vacuum packaged by the exterior film. For example, it is possible to perform a leak inspection of the all-solid-state lithium-ion secondary battery by a recess for inspection formed by the exterior film following along a recess formed in the surface on the electrode laminate side being present, and measuring displacement of this recess for inspection.