SOLID ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD

WIPO Patent Application WO/2023/054504

A1

Provided are a solid electrolytic capacitor that exhibits low equivalent series resistance even at high frequencies, and a manufacturing method. The solid electrolytic capacitor comprises a positive electrode foil, a negative electrode body, and an electrolyte layer. The positive electrode foil is composed of a valve metal, and a dielectric oxide film is formed on the surface thereof. The negative electrode body comprises: a negative electrode foil composed of a valve metal; and an electrically conductive layer formed on the surface of the negative electrode foil. The electrolyte layer is interposed between the positive electrode foil and the negative electrode foil, and contains an electrolyte solution and an electrically conductive polymer. The electrolyte solution contains a phosphoric acid compound having a C1-10 alkyl group.

JP3254981	ELECTROLYTE FOR ELECTROLYTIC CAPACITOR
JP2021174944	ELECTROLYTE SOLUTION AND ELECTROLYTIC CAPACITOR
WO/2005/109562	MATERIAL FOR ELECTROLYTIC SOLUTION, IONIC MATERIAL-CONTAINING COMPOSITION AND USE THEREOF

JIN ZHUGUANG (JP)
MIURA TAKASHI (JP)
KAWAI YOSHIKI (JP)
MOGAKI KATSUMI (JP)
MACHIDA KENJI (JP)
SATO KENTA (JP)
NAKAMURA IPPEI (JP)

PCT/JP2022/036245

April 06, 2023

September 28, 2022

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NIPPON CHEMICON (JP)

H01G9/035; H01G9/042; H01G9/055; H01G9/145; H01G9/15

WO2016174806A1	2016-11-03
WO2021125182A1	2021-06-24

JP2017069537A	2017-04-06
JP2000114108A	2000-04-21
JP2008010657A	2008-01-17

KIUCHI Mitsuharu et al. (JP)

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