Secondary battery
US8753765B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 20, 2011 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jun 23, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a secondary battery including a fuse part that can continually function as a fuse. In the state where a first short circuit plate contacts a connecting plate to form a short circuit, even when heat generated from the short circuit melts the first short circuit plate, a second short circuit plate contacts the connecting plate to maintain a short circuit state, so that the fuse part can continually function as a fuse. The secondary battery includes an electrode assembly, a case accommodating the electrode assembly, a cap assembly including a cap plate sealing the case and having a short circuit hole, and a short circuit assembly including a first short circuit plate, a second short circuit plate, and a connecting plate. The first short circuit plate is disposed in the short circuit hole. The second short circuit plate contacts a lower part of the first short circuit plate. The connecting plate is spaced apart from the cap plate and is disposed outside the cap plate to cover the short circuit hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.