| 摘要 |
PROBLEM TO BE SOLVED: To provide a leak inspection method for a current shut-off valve, configured to perform leak inspection in a short time.SOLUTION: A current shut-off valve 50 includes a through hole 51c allowing communication between the inside and outside of an outer sheath 10 of a battery 1, and having one end to which an inversion plate 53 is attached. A leak inspection method for the current shut-off valve 50, configured to perform leak inspection of the bottom of the through hole 51c includes: inserting a fixing component 110 for fixing the inversion plate 53 from the top of the through hole 51c; covering the top of the through hole 51 to form a sealed space S; and applying vacuum treatment to the sealed space S to perform leak inspection of the bottom of the through hole 51c. |
