Secondary battery inspection method and secondary battery inspection device

摘要

PROBLEM TO BE SOLVED: To inspect a secondary battery provided with a laminated body in which a positive electrode sheet, a separator and a negative electrode sheet are laminated and a case for the presence or absence of conductive foreign matter in a short time, with high accuracy and at low cost. do. SOLUTION: In the secondary battery inspection method, both end faces perpendicular to the stacking direction of the laminated body in the case are set as first end faces, the case is pressed from the first end faces, and the case is pressed from the direction parallel to the first end faces. A preparatory step (step S1) for preparing a state in which the laminated body is vibrated, and an inspection step (step S2) for inspecting the presence or absence of conductive foreign matter by applying a voltage to the secondary battery in such a state. Be prepared. [Selection diagram] Fig. 3