Laser-based method and system for triggering thermal runaway of a battery
US12174259B1 · kind B1 · utility
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Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Jul 10, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for testing a battery cell includes directing a laser radiation from a laser at a radiation-receiving location on a can of the battery cell to trigger a thermal runaway event. A power, a wavelength, and a beam size of the laser radiation are selected based on a test stability of the battery cell when triggering the thermal runaway event. The test stability includes a likelihood that the can will breach in response to triggering the thermal runaway event. The method also includes ceasing to contact the radiation-receiving location with the laser radiation in response to the thermal runaway event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.