Patent · US Expired

Electrochemical storage cell

US4127705A · kind A · utility

7Cited by

2References

9Claims

0Family size

Assignee

Brown, Boveri & Cie AG · DE

Inventors

Wilfried Fischer · Holzkirchen, DE
Herbert Kleinschmager · Eppelheim, DE
Wilhelm Haar · Sandhausen, DE
Gert Weddigen · Heidelberg, DE

Key dates

Filing date	Jul 20, 1977
Grant date	Nov 28, 1978
Priority date	—
Expiry date	Jul 20, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrochemical storage cell or battery based on an alkali metal and sulfur having at least one anode chamber and at least one cathode chamber separated from each other by an ion-conducting solid electrolyte, a felt fabric with capillary activity located in the cathode chamber, and an additive lowering the viscosity of the sulfur in the cathode chamber. Preferred additives are selenium, boron and iodine. Lowering the viscosity of the sulfur permits recharging the cell to a greater capacity.

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