Patent · US Expired

Rechargeable lithium-ion cell

US6007944A · kind A · utility

15Cited by

1References

17Claims

0Family size

Assignee

Varta Batterie Aktiengesellschaft · DE

Inventors

Dieter Bechtold · Bad Vilbel, DE
Dietrich Bartke · Kelkheim, DE
Peter Kramer · Königstein, DE
Reiner Kretzschmar · Kelkheim, DE
Jurgen Vollbert · Hattersheim, DE

Key dates

Filing date	Mar 26, 1998
Grant date	Dec 28, 1999
Priority date	—
Expiry date	Mar 26, 2018

Classification

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

Abstract

The invention relates to a rechargeable lithium-ion cell, a method for its manufacture, and its application. The cell is distinguished by the fact that it has a metallic housing (21) which is electrically insulated internally by two half shells (15), which cover electrode plates (8) and main output tabs (7) and are composed of a non-conductive material, where the metallic housing is electrically insulated externally by means of an insulation coating. The cell also has a bursting membrane (4) which, in its normal position, is located above the electrolyte level of the cell (1). In addition, the cell has a twisting protection (6) which extends over the entire surface of the cover (2) and provides centering and assembly functions for the electrode package, which comprises the electrode plates (8).

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