SQUARE-SHAPED ELECTRODE CELL AND ITS MANUFACTURING METHOD, AND ELECTRIC DOUBLE LAYER CAPACITOR USING THE SAME

PROBLEM TO BE SOLVED: To provide a method for alternately stacking electrode sheets and separators easily without bringing the electrode sheets into contact with each other due to a shift, in a multilayer structure of the electrode sheets and the separators in an electric double layer capacitor having such a structure that the electrode sheets and the separators are alternately stacked. SOLUTION: In manufacturing the electric double layer capacitor, a square-shaped electrode cell is used which has such a structure that one electrode sheet is inserted into or sealed in a flat separator bag so that the lead of a current collector may be exposed to the outside. The electric double layer capacitor is manufactured by using a laminate made by stacking the plurality of square-shaped electrode cells. COPYRIGHT: (C)2006,JPO&NCIPI