Overcurrent shut-off device and secondary battery system comprising the same
US9444088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2014 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Nov 24, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overcurrent shut-off device according to an exemplary embodiment of the present disclosure includes a switching unit connected to both ends of a secondary battery, the switching unit being turned on by pressure caused by a swelling phenomenon occurring in the secondary battery, and a fusing unit, as a component installed on a path of an electric current flowing through the secondary battery, being ruptured when the switching unit is turned on, to interrupt the electric current flowing through the secondary battery.According to an aspect of the present disclosure, by a turn-on operation in response to a swelling phenomenon of a secondary battery caused by a short circuit and the like, a connecting component installed on a path of an electric current flowing through a secondary battery is ruptured quickly to interrupt an overcurrent, thereby ensuring safety of the secondary battery in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.