Solid electrolytic capacitor

Details Solid electrolytic capacitor Solid electrolytic capacitor

1987-11-13

1989-05-09

Niebling, John F.

Compositions

Electrolytes for electrical devices

361527, H01G 902

Patent

active

048287385

ABSTRACT:
The present invention provides a solid electrolytic capacitor which comprises a first electrode comprising a valve action metal plate one surface of which is covered by an anodic oxidation film, a second electrode which faces the surface of the first electrode having the anodic oxidation film and a layer of a solid electrolyte which is placed between the first and second electrodes and comprises a salt of 7,7,8,8-tetracyanoquinodimethane with a cation of quinoline or isoquinoline the nitrogen atom of which is quarternarized with fluorinated alkyl groups, which has improved reliability at high temperature and increased capacitance, and decreases the formation of poisonous gas during pyrolysis.

REFERENCES:
patent: 3872358 (1975-03-01), Murakami et al.
patent: 3898539 (1975-08-01), Yoshimura et al.
patent: 3916267 (1975-10-01), Yasuda et al.
patent: 3941792 (1976-03-01), Murakami
patent: 3946289 (1976-03-01), Yasuda
patent: 4580855 (1986-04-01), Niwa
patent: 4590541 (1986-05-01), Takahashi et al.
patent: 4679124 (1987-07-01), Yoshimura et al.
patent: 4688153 (1987-08-01), Ebisawa et al.
patent: 4729844 (1988-03-01), Tsuchiya et al.
Kirk-Othmer "Fluorinated Aliphatic Compounds", vol. 10, 3rd ed. 1980, pp. 856-870.

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