Title:
ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2022/118785
Kind Code:
A1
Abstract:
Provided are an electrolytic capacitor having reduced leakage current, and a method for manufacturing the same. The electrolytic capacitor comprises: an etching layer provided on a surface of an electrode foil made of a valve metal; a dielectric oxide film layer formed on a surface of the etching layer; and a solid electrolyte layer comprising thiophene or a derivative thereof formed by electropolymerization on the dielectric oxide film layer. The solid electrolyte layer includes a fibrous polymer having a net-like form. The thiophene or a derivative thereof is 3,4-ethylenedioxythiophene or a derivative thereof.
Inventors:
KOSEKI KAZUYA (JP)
NAGAHARA KAZUHIRO (JP)
TANAKA YUKI (JP)
NAGAHARA KAZUHIRO (JP)
TANAKA YUKI (JP)
Application Number:
PCT/JP2021/043591
Publication Date:
June 09, 2022
Filing Date:
November 29, 2021
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
H01G9/00; H01G9/028
Foreign References:
| JPH02224316A | 1990-09-06 | |||
| JPS63181309A | 1988-07-26 | |||
| JP2017126649A | 2017-07-20 | |||
| JPS63181308A | 1988-07-26 | |||
| JP2001044079A | 2001-02-16 | |||
| JPS62189714A | 1987-08-19 | |||
| JP2009252913A | 2009-10-29 | |||
| JPS63152867A | 1988-06-25 |
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (JP)
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