Patent ID: 11894522
Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 0:
1. An inspection method of a laminated power storage device comprising the steps of:
preparing a laminated power storage device; and
placing the laminated power storage device in a predetermined reduced-pressure atmosphere, wherein
the laminated power storage device includes an electrode body to which an electrode terminal is connected and an outer casing constituted by a laminated film,
the laminated power storage device has a welding portion in which the laminated films are stacked and welded together in a state in which part of the electrode terminal is protruded to the outside from between the laminated films around the electrode body, and
a pressure of the predetermined reduced-pressure atmosphere is set so as to determine whether a weld strength of the welding portion is not less than a predetermined strength, and the pressure of the predetermined reduced-pressure atmosphere is lower than a pressure inside the outer casing of the laminated power storage device.