SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2020/262186

A1

Provided is a solid electrolytic capacitor in which the desired electrostatic capacity is employed, the ESR at the usage frequency is made smaller than in the prior art, and oxide film repair performance is improved, so that the effect in regard to reducing leakage current is heightened. As a solution, this solid electrolytic capacitor (1) comprises: a solid electrolyte (20) that has an anode foil (2a) on which an oxide film is formed, a cathode foil (2c), and a separator (2d), the solid electrolyte (20) being formed of an electroconductive polymer compound in the form of a microparticulate; and a water-soluble compound solution (30) introduced to surround the solid electrolyte (20). The solid electrolyte (20) contains a polyol compound having a molecular weight of less than 200 and four or more hydroxyl groups as a first water-soluble compound (2f1). One or more liquid-form glycol compounds are contained in the water-soluble compound solution (30) as a second water-soluble compound (2f2), and the average molecular weight of the second water-soluble compound (2f2) is less than 400.

SAKAGUCHI MASAYUKI (JP)
OGAWARA TETSUSHI (JP)
SAKURAI YOSHISHIGE (JP)
IIJIMA AKIRA (JP)
NOZAWA YOSUKE (JP)

PCT/JP2020/023923

December 30, 2020

June 18, 2020

Click for automatic bibliography generation  

RUBYCON CORP (JP)

H01G9/00; H01G9/028; H01G9/035; H01G9/145; H01G9/15

WO2017094242A1	2017-06-08
WO2017094242A1	2017-06-08

JP2018110232A	2018-07-12
JP2018026542A	2018-02-15
JP2016082053A	2016-05-16
JPH0235409B2	1990-08-10
JP2014090107A	2014-05-15
JP2019029520A	2019-02-21
JP2012186452A	2012-09-27
JP2012186452A	2012-09-27
JP2018026542A	2018-02-15

See also references of EP 3998617A4

WATANUKI PATENT SERVICE BUREAU (JP)

View/Download PDF      PDF Help

Previous Patent: WATER SOFTENING SYSTEM AND WATER SOFTENING DEVICE

Next Patent: RUBBER MOLDED BODY AND BATTERY PACK