| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electric double layer capacitor comprising a heat seal part for sealing a capacitor body and electrolyte hermetically in a case formed of a multilayer resin film having a metallic intermediate layer in which a heat seal part having a hard-to-strip welding surface can be attained for sealing the case hermetically. SOLUTION: The electric double layer capacitor comprises a capacitor body consisting of a polarizable electrode, a separator and a collector electrode, and a heat seal part for sealing the capacitor body and electrolyte hermetically in a case formed of a multilayer resin film having a metallic intermediate layer wherein irregular pressure print pattern 34a is imparted to the heat seal part 13 of the case 10. COPYRIGHT: (C)2005,JPO&NCIPI
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