Housing for a sealed electrochemical battery cell
US7923138B2 · kind B2 · utility
1Cited by
35References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2010 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Sep 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrochemical cell with a collector assembly for sealing the open end of a cell container. The collector assembly includes a retainer and a contact spring with a peripheral flange, each having a central opening therein. A pressure release vent member disposed between the retainer and the peripheral flange of the contact spring seals the openings in the retainer and contact spring under normal conditions and ruptures to release pressure from within the cell when the internal pressure exceeds a predetermined limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.