MANUFACTURING METHOD OF ELECTROCHEMICAL CAPACITOR

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of an electrochemical capacitor capable of efficiently executing heat sealing capable of maintaining high airtightness at an electrode terminal peripheral part, in the manufacturing method of the electrochemical capacitor composed by sealing a laminate comprising a positive electrode body, a negative electrode body and a separator in a flat container in the state of exposing the distal end of the terminal of the positive electrode body and the distal end of the terminal of the negative electrode body to the outside.

SOLUTION: (1) When performing heat sealing, it is performed while heating or cooling a welding agent on the terminal distal end side at a temperature lower than the heating temperature of the welding agent on the side opposite to the distal end. (2) The welding agent of a melting temperature higher than that of the welding agent on the side opposite to the distal end is arranged as the welding agent on the terminal distal end side beforehand and heat sealing is performed. (3) A thermosetting resin is arranged on the terminal distal end side of the welding agent beforehand and heat sealing is executed.

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