Solid electrolytic capacitor and process for preparation thereof

Details Solid electrolytic capacitor and process for preparation thereof Solid electrolytic capacitor and process for preparation thereof

1986-09-02

1987-03-03

Griffin, Donald A.

Electricity: electrical systems and devices

Miscellaneous

29 2542, H01G 900, H01G 700

Patent

active

046480102

ABSTRACT:
Disclosed is a solid electrolytic capacitor made of a structural body comprising a metal having a valve action, an oxide film formed on the surface of the metal, a semiconductor layer composed of a mixture of lead dioxide and lead sulfate, which is formed on the oxide film and, formed on the semiconductor layer, (a) a carbon layer, (b) a metal layer or (c) a carbon layer and a metal layer formed thereon. The semiconductor layer is formed by chemically depositing a mixture of lead dioxide and lead sulfate on the oxide film from a reaction mother liquid containing lead ions and persulfate ions.

REFERENCES:
patent: 3619387 (1971-11-01), Mindt et al.

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