Electrolytic capacitor having a conductive graphite particles la

Details Electrolytic capacitor having a conductive graphite particles la Electrolytic capacitor having a conductive graphite particles la

1975-03-26

1977-02-22

James, Andrew J.

Electricity: electrical systems and devices

Miscellaneous

29570, H01G 900, B01J 1700

Patent

active

040094243

ABSTRACT:
The capacitor has a conductive layer, which is a dispersion of fine particles of graphite in a solidified polymer amounting to from 1 to 10% by weight of graphite, between and in intimate contact with a cathode and a solid electrolyte layer which is formed on an anodized valve metal and made of a semiconductive salt of 7,7,8,8-tetracyanoquinodimethane and a polymer. The conductive layer is formed by applying a suspension of graphite particles, the mean particle size of which preferably ranges from 1 to 7 .mu.m, in a solution of a polymer in a low viscosity and easily evaporable solvent, e.g. ethanol, onto the electrolyte layer followed by drying at or slightly above room temperature to evaporate the solvent and solidify polymer.

REFERENCES:
patent: 3675087 (1972-07-01), Zykov et al.
patent: 3679944 (1972-07-01), Yoshimura
patent: 3898539 (1975-08-01), Yoshimura et al.

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