Secondary battery having an insulator with protrusions
US8962167B2 · kind B2 · utility
3Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2008 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | May 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is a provided a secondary battery capable of preventing unloading and rotating caused by possible vibration or shock by increasing a coupling force among the vent plate, the insulator, and the cap-down that compose the cap assembly of the secondary battery. To increase the coupling force among the vent plate, the insulator, and the cap-down, protrusions and corresponding grooves or holes, and grooves with step areas may be formed. Alternatively, a plurality of insulators may be formed in a divided form. A secondary battery with a reliable cap assembly can be implemented through such a structural change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.