Patent · US Expired

Aluminum electrolyte capacitor and method for the manufacture thereof

US4920457A · kind A · utility

1Cited by

7References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Wilhelm Schweikert · Heidenheim, DE
Norbert Will · Heidenheim, DE
Wilhelm Lauer · Giengen an der Brenz, DE

Key dates

Filing date	Dec 1, 1988
Grant date	Apr 24, 1990
Priority date	—
Expiry date	Dec 1, 2008

Classification

Technology area (CPC H)Electricity
CPC primaryH01G9/04
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An aluminum electrolyte capacitor is provided composed of two aluminum foils between which spacers saturated with the operating electrolyte are arranged. Terminal elements are riveted and/or welded to the foils. The anode foil provided with the dielectrically acting oxide layer may potentially be produced from a larger, formed foil web. The non-formed cut edges of the aluminum foil as well as the terminal elements are covered with a fine-grained, electrolyte-compatible material. As a result thereof, the maximum operating voltage U.sub.max of traditional operating electrolytes is boosted.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.