Title:
SOLID ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/070288
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a solid electrolytic capacitor that achieves both low ESR and high withstand voltage. The solid electrolytic capacitor comprises a positive electrode foil, a negative electrode body, and a capacitor element having an electrolyte. In the positive electrode foil, the surface is enlarged with tunnel-shaped etching pits, and there is a dielectric film on the surface. The negative electrode body faces the positive electrode foil. The electrolyte includes a solid electrolyte layer that contains a conductive polymer. This solid electrolyte layer has a weight of 250 mg/cm3 or less per unit volume of the capacitor element.
Inventors:
SATO KENTA (JP)
MACHIDA KENJI (JP)
MOGAKI KATSUMI (JP)
YOSHIOKA KYOHEI (JP)
MACHIDA KENJI (JP)
MOGAKI KATSUMI (JP)
YOSHIOKA KYOHEI (JP)
Application Number:
PCT/JP2023/029439
Publication Date:
April 04, 2024
Filing Date:
August 14, 2023
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
H01G9/028; H01G9/145; H01G9/15
Foreign References:
| JP2011199089A | 2011-10-06 | |||
| JP2014123685A | 2014-07-03 | |||
| JP2013055308A | 2013-03-21 |
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (JP)
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