SOLID ELECTROLYTE, SOLID ELECTROLYTIC CAPACITOR, ELECTROCONDUCTIVE POLYMER DISPERSION, METHOD FOR PRODUCING SOLID ELECTROLYTE, AND METHOD FOR PRODUCING ELECTROCONDUCTIVE POLYMER DISPERSION

Title:

SOLID ELECTROLYTE, SOLID ELECTROLYTIC CAPACITOR, ELECTROCONDUCTIVE POLYMER DISPERSION, METHOD FOR PRODUCING SOLID ELECTROLYTE, AND METHOD FOR PRODUCING ELECTROCONDUCTIVE POLYMER DISPERSION

Document Type and Number:

WIPO Patent Application WO/2023/054099

Kind Code:

A1

Abstract:

Provided are a solid electrolyte for endowing a solid electrolytic capacitor with a high withstand voltage, a solid electrolytic capacitor using this solid electrolyte, an electroconductive polymer dispersion for forming the solid electrolytic capacitor, and method for producing the same. The solid electrolyte is formed by using a liquid dispersion of electroconductive polymer, and contains the electroconductive polymer in this liquid dispersion. The electroconductive polymer is polyanion-doped poly(3,4-ethylenedioxythiophene) or a derivative thereof. The electroconductive polymer has a crystallinity of 20% or less. The solid electrolyte is formed by evaporating off the solvent from the liquid dispersion of the electroconductive polymer. The liquid dispersion of the electroconductive polymer is produced by dispersing, in a solvent, an electroconductive polymer that is polyanion-doped poly(3,4-ethylenedioxythiophene) or a derivative thereof and that has a crystallinity of 20% or less.

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Inventors:

OKUZAKI HIDENORI (JP)
MACHIDA KENJI (JP)
YOSHIOKA KYOHEI (JP)
MOGAKI KATSUMI (JP)
WAKABAYASHI TOSHIKI (JP)
NIIOKA TAKASHI (JP)

Application Number:

PCT/JP2022/035122

Publication Date:

April 06, 2023

Filing Date:

September 21, 2022

Export Citation:

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Assignee:

NIPPON CHEMICON (JP)
UNIV YAMANASHI (JP)

International Classes:

H01G9/00; H01G9/028; H01G9/15

Domestic Patent References:

WO2014155420A1	2014-10-02
WO2019189009A1	2019-10-03

Foreign References:

JP2016192425A	2016-11-10
JP2020057816A	2020-04-09
JP2003160647A	2003-06-03
JP2008258224A	2008-10-23

Attorney, Agent or Firm:

KIUCHI Mitsuharu et al. (JP)

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