Patent · US Expired

Electrochemical capacitor

US4337501A · kind A · utility

6Cited by

7References

1Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Konrad Mund
Gerhard Richter · Kreuztal, DE
Erhard Weidlich · Spardorf, DE

Key dates

Filing date	Sep 21, 1979
Grant date	Jun 29, 1982
Priority date	—
Expiry date	Sep 21, 1999

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/13
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to an electrochemical capacitor with electrodes of activated carbon. Such a capacitor is to be improved in the sense that the electrodes are mechanically stable and also exhibit a large capacity per unit of area. To this end, the invention provides electrodes which consist of glass carbon activated in concentrated sulfuric acid at temperatures of up to about 330.degree. C. The electrochemical capacitor according to the invention is suitable for use in electric circuits.

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