Solid electrolytic capacitor and method for manufacturing the sa

Details Solid electrolytic capacitor and method for manufacturing the sa Solid electrolytic capacitor and method for manufacturing the sa

1994-07-27

1995-12-05

Walberg, Teresa J.

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

361523, H01G 9025

Patent

active

054735033

ABSTRACT:
A solid electrolytic capacitor using a conductive polymeric compound as a solid electrolyte is disclosed, wherein a powder is dispersed in the conductive polymer to provide unevenness on the surface of the solid electrolyte, thereby increasing the surface area, whereby a mechanical adhesion between the solid electrolyte and a cathode conductor layer is increased. The conductive polymer comprises a first conductive polymer layer which contacts a dielectric layer at an anode body side, and a second conductive polymer layer which contacts the cathode conductor layer side, and the powder is dispersed in the second conductive polymer layer. By this constitution, tan .delta. and an equivalent series resistance (ESR) of the solid electrolytic capacitor are decreased.

REFERENCES:
patent: 3950842 (1976-04-01), Fournier et al.
patent: 4017773 (1977-04-01), Cheseldine
patent: 4780796 (1988-10-01), Fukuda et al.
patent: 4942501 (1990-07-01), MacFarlane et al.
Patent Abstracts of Japan, vol. 15, No. 197 (C-833) 21 May 1991 re JP-A-03 052 920 (Matsushita Electric Ind. Co. Ltd.) 7 Mar. 1991.

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