Thermistor-based thermal run-away detection for battery packs
US11569535B1 · kind B1 · utility
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16Claims
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Key dates
| Filing date | Mar 30, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Nov 15, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for identifying thermal run-away events in a battery pack can include using sensing circuits made up of series- or parallel-linked thermistors to measure subsets of the individual battery cells in a battery pack. Using multiple sensing circuits, a monitoring system can positively identify when a threshold temperature of any single battery cell has been reached even though individual temperatures are not monitored, and can generate a signal indicative of a thermal run-away event based on the detected temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.