Nonaqueous cell with improved thermoplastic sealing member
US7923137B2 · kind B2 · utility
2Cited by
31References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2003 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Feb 10, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrochemical battery cell with an aperture in the container or cell cover has the aperture sealed by an improved thermoplastic sealing member, which forms at least a part of the cell's pressure relief vent and is made from a material comprising a thermoplastic resin and more than 10 weight percent of a thermal-stabilizing filler, to provide an effective seal and a reliable pressure relief vent over a broad temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.