Rechargeable battery having safety vent
US7943251B2 · kind B2 · utility
0Cited by
2References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2005 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium rechargeable battery includes a current interrupt device in a cap assembly that includes a weakened central breakage portion that is designed to break and interrupt the current in the battery when the pressure inside the battery increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.