| abstract |
PROBLEM TO BE SOLVED: To satisfy the requirements for both an electrolytic capacitor and an electric double layer capacitor, which are required for a capacitor in recent years, low resistance, large capacity, and further miniaturization / thinning. Have SOLUTION: The present invention relates to a porous anode body in which at least a surface of a porous body made of a valve action metal powder is an oxide film of the valve action metal, and a porous body made of an activated carbon layer or a valve action metal powder. A wet electrolytic capacitor characterized by having an acidic electrolytic solution sandwiched between a cathode electrode and a porous anode body and a cathode electrode. [Selection] Figure 1 |