Electrochemical cell with improved safety
US6033795A · kind A · utility
23Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Mar 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a sealed electrochemical cell comprising a container containing a spiral-wound electrochemical group and at least one safety device for the event of a rise in internal pressure, wherein said safety device comprises gas vent first means allowing gas to escape to the outside of said container in the event of internal pressure rising, co-operating with holding second means for holding said group inside said container and organized so as to create a gap between said group and the inner wall of said container to allow said gas to flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.