Patent · US Expired

Electric storage battery with gas driven electrolyte movement

US4283467A · kind A · utility

7Cited by

5References

6Claims

0Family size

Assignee

Varta Batterie Aktiengesellschaft · DE

Inventors

Karl-Friedrich Gutlich · Frankfurt, DE
Wolfgang Kappus · Viernheim, DE
Herbert Zweigardt · Kelkheim, DE
Rudolf Eckardt · Wesel, DE

Key dates

Filing date	Feb 28, 1980
Grant date	Aug 11, 1981
Priority date	—
Expiry date	Feb 28, 2000

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In an electric storage battery having plate electrodes, the capacity and useful life is improved through uniform distribution of concentration and temperature of the electrolyte by means of electrolyte circulation. A synthetic plastic plate positioned between the plate electrodes and the housing wall of the storage battery contains a plurality of vertically extending transport tubes which are open at their upper and lower ends. The bottom portions of the transport tubes, which are immersed in the electrolyte, are connected to compressed air ducts. The compressed air is mixed with the electrolyte present in the transport tube in such a manner that the electrolyte-air mixture present therein is lifted, due to its lower specific gravity, by the electrolyte which surrounds the transport tube. The electrolyte leaving the transport tube produces continuous circulation within the storage battery, and this ensures permanent exchange of the electrolyte present between the plate electrodes.

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