Patent ID: 7706129

Claim:
An electric double-layer capacitor comprising: a capacitor element; a driving electrolyte; and a case, wherein the capacitor element is housed in the case, together with the driving electrolyte, polarizable electrode layers are formed on both sides of a current collector made of metallic foil, anode electrode and cathode electrode, which are attached to lead wires, are paired, current collectors are wound by interposing a separator between the pair of the anode electrode and the cathode electrode in such a manner that the polarizable electrode layers are faced each other, the lead wire is fixed to a polarizable-electrode-layer-removed section where the polarizable electrode layer on the electrode has been removed, and an area of the polarizable-electrode-layer-removed section is not smaller than 1 and not larger than 2.0 when a project area of a portion where the lead wire is connected with the current collector is set to 1.