Patent · US Expired

Individual rechargeable electric cell

US4419418A · kind A · utility

8Cited by

7References

1Claims

0Family size

Assignee

Brown, Boveri & Cie AG · DE

Inventors

Reinhard Knodler · Sandhausen, DE
Friedrich Harbach · Heidelberg, DE
Ludwig Weiler · Heidelberg, DE

Key dates

Filing date	Mar 26, 1982
Grant date	Dec 6, 1983
Priority date	—
Expiry date	Mar 26, 2002

Classification

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

Abstract

Individual rechargeable electric cell with an outer metal housing, an electrolyte tube open at the top arranged coaxially in the housing, liquid sodium in the tube, a current collector extending down through the open end of the tube into the sodium, an alpha-Al.sub.2 O.sub.3 ring at the open end of the tube, a first flexible flange which connects the current collector to the ring attached to the tube via an aluminum ring, a second flexible flange connected to the housing and to the alpha-Al.sub.2 O.sub.3 ring via another ring, and sulfur in the space between the housing and tubular electrolyte.

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