Title:
METHOD FOR PREPARING CONDUCTIVE POLYMER DISPERSION, AND METHOD FOR MANUFACTURING SOLID ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2023/058684
Kind Code:
A1
Abstract:
Provided are: a method for preparing a conductive polymer dispersion in which a conductive polymer having high electrical conductivity is dispersed; and a method for manufacturing a solid electrolytic capacitor having said conductive polymer. This method for preparing a conductive polymer dispersion comprises a step of adding a monomer which is a monomer unit of the conductive polymer, a dopant, an oxidizing agent, a salicylic acid or salicylate, and an inhibitor which inhibits a complexation reaction between the oxidizing agent and the salicylic acid. The oxidizing agent and the salicylic acid or salicylate are mixed in the presence of the inhibitor or simultaneously with the addition of the inhibitor. At least one of a positive electrode foil, a negative electrode foil, and a separator in a solid electrolytic capacitor is impregnated with said conductive polymer dispersion. Alternatively, after a process of assembling a capacitor element including a positive electrode foil and a negative electrode foil, the capacitor element is impregnated with said conductive polymer dispersion to manufacture a solid electrolytic capacitor.
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Inventors:
KAWAI YOSHIKI (JP)
MACHIDA KENJI (JP)
MACHIDA KENJI (JP)
Application Number:
PCT/JP2022/037276
Publication Date:
April 13, 2023
Filing Date:
October 05, 2022
Export Citation:
Assignee:
NIPPON CHEMICON (JP)
International Classes:
H01G9/00; H01G9/028
Domestic Patent References:
| WO2014038440A1 | 2014-03-13 |
Foreign References:
| JP2009001624A | 2009-01-08 | |||
| JP2009001625A | 2009-01-08 | |||
| JP2016192425A | 2016-11-10 |
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (JP)
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