| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing an exterior body for power storage element capable of suppressing occurrence of poor weld, when performing laser welding of a body portion capable of surrounding an electrode body, and a closing portion for closing an opening of the body portion.SOLUTION: A method of manufacturing an exterior body for power storage element including an annular body portion having an opening and capable of surrounding an electrode body, and a closing portion for closing the opening includes a step for arranging the closing portion on the opening end of the body portion so that the end of the closing portion protrudes to the outside from the outer periphery of the body portion, and a step for performing laser welding of the outer periphery of the body portion, and the end of the closing portion protruding from the outer periphery of the body portion. |
