Title:
ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2021145135
Kind Code:
A
Abstract:
To reduce an ESR even with use of an electrolysis solution and to secure a high capacitance, in an electrolytic capacitor including a conductive polymer layer.SOLUTION: An electrolytic capacitor disclosed herein includes a capacitor element and an electrolysis solution impregnated in the capacitor element. The capacitor element includes: an anode foil on the surface of which a dielectric layer is formed; a cathode foil disposed to face the anode foil; and a conductive polymer layer disposed between the anode foil and the cathode foil. An inorganic conductive layer is formed on a surface of the cathode foil. The inorganic conductive layer has a convex portion and a recessed portion on a surface thereof. On the convex portion, a first region where the inorganic conductive layer is in contact with the conductive polymer layer is formed. On the recessed portion, a second region where the electrolysis solution infiltrates between the inorganic conductive layer and the conductive polymer layer is formed.SELECTED DRAWING: Figure 1
Inventors:
TSUDA YASUHIRO
Application Number:
JP2021087039A
Publication Date:
September 24, 2021
Filing Date:
May 24, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H01G9/042; H01G9/048; H01G9/055; H01G9/145; H01G9/15
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Foreign References:
| WO2011099261A1 | 2011-08-18 |
Attorney, Agent or Firm:
Kawasaki/Hashimoto Patent Office