Patent ID: 8358496

Claim:
An electric double layer capacitor including a capacitor proper that is produced by a plurality of stacked cells and an aluminum laminate film that covers an exterior of the capacitor proper, comprising: a pair of collecting terminals that respectively contact with collecting electrode plates arranged at opposed portions of the capacitor proper; each collecting terminal includes a first bent portion that is bent to extend in a direction of a thickness of the capacitor proper along a side surface of the capacitor proper and a second bent portion that is bent to extend outward from a vertically middle position of the side surface; the second bent portions of the pair of collecting terminals are arranged to constitute a common plane and covered with the aluminum laminate film in such a manner that leading end portions of the pair of collecting terminals protrude to an outside from the aluminum laminate film; a root portion of each of the second bent portions is applied with plastic molds that are put on the aluminum laminate film; and a plurality of plastic bodies, each plastic body having a triangular cross section, arranged such that at a welded junction portion of the aluminum laminate film through which the collecting terminals protrude to the outside, both surfaces of the collecting terminals are sandwiched by the plastic bodies.