Battery
US8871382B2 · kind B2 · utility
0Cited by
0References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2009 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Oct 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery is equipped with a case (200) in which a fill opening (aperture) (201) is formed and a sealing cap (210), which closes the fill opening (201) formed in the case (200). The sealing cap (210) is formed of a thin plate that covers the fill opening (201) in the case (200), the circumferential edge (211) of the sealing cap (210) is bonded to the case (200), and the center (212) of the sealing cap (210) is bent from the circumferential edge (211) and bulges up toward the outside of the case (200). In addition, a chamfer (213) is applied at the bent corner of the sealing cap (210).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.