Title:
ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2024/014270
Kind Code:
A1
Abstract:
Provided is an electrolytic capacitor in which a nitro compound is efficiently used and which suppresses the total amount of gas that is generated in the electrolytic capacitor. The electrolytic capacitor comprises a positive electrode foil, a negative electrode body, and an electrolyte. A dielectric oxide film is formed on the positive electrode foil. The negative electrode body has a reduction site on the surface thereof. The negative electrode body comprises a negative electrode foil that is made of a valve metal and a carbon layer that is layered on said negative electrode foil, and the carbon layer serves as the reduction site. The electrolyte is interposed between the positive electrode foil and the negative electrode body, and contains the nitro compound. The nitro compound is contained in the electrolyte at a proportion of 1.5 mg or less per 1 cm2 projected area of the negative electrode body.
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Inventors:
HATAE TATSURU (JP)
KOSEKI KAZUYA (JP)
NAGAHARA KAZUHIRO (JP)
KOSEKI KAZUYA (JP)
NAGAHARA KAZUHIRO (JP)
Application Number:
PCT/JP2023/023609
Publication Date:
January 18, 2024
Filing Date:
June 26, 2023
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
H01G9/055; H01G9/035; H01G9/042; H01G9/145
Domestic Patent References:
| WO2021125220A1 | 2021-06-24 |
Foreign References:
| JP2022058323A | 2022-04-11 |
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (JP)
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