Battery pack configuration to reduce hazards associated with internal short circuits
US8932739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2011 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Jan 11, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery pack, or battery pack module, is provided that is configured to respond to a short circuit of moderate current in a manner that minimizes the risk of an initial thermal runaway event propagating throughout the battery pack/battery pack module. In general, the battery pack/battery module allows pre-selection of which cell of the cells comprising the battery pack/battery pack module will be the last cell to respond to the short circuit. As a result, a thermal isolation barrier may be used to separate the preselected cell from the other cells of the battery pack/battery pack module, thereby minimizing the risk of excessive heating and extensive collateral damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.