Patent Number: 6,310,765

Title: Electrolytic capacitor and method for manufacturing the same

Abstract: The invention has an object to reduce the impedance and to improve the responsiveness at high frequencies in an electrolytic capacitor having an conducting polymer layer as the cathode. A cathode collector is directly joined with the surface of the dielectric of a valvular metal porous body for anode using a conducting polymer layer but not through various binding layers (for example, a carbon layer and a silver layer) thereby reducing the impedance. A cathode collector is disposed adjacent and opposite to a porous valvular metal foil for anode. This structure ensures that the collecting area is enlarged. In this case, a cathode collector may be directly joined with the surface of the dielectric of a valvular metal porous body for anode using an conducting polymer layer but not through various binding layers thereby reducing the total impedance.

Inventors: Tanahashi; Masakazu (Osaka, JP), Igaki; Emiko (Amagasaki, JP)

Assignee: Matsushita Electric Industrial Co., Ltd.

International Classification: H01G 9/04 (20060101); H01G 9/00 (20060101); H01G 9/02 (20060101); H01G 9/15 (20060101); H01G 009/02 (); H01G 009/04 ()

Expiration Date: 10/30/2018