Method and apparatus for detection and control of thermal runaway in a battery under charge
US5574355A · kind A · utility
207Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Mar 17, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00711
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A thermal runaway detection apparatus is provided for use during charging of a battery. The thermal runaway detection apparatus includes circuitry for determining internal resistance (impedance) or conductance (admittance) of the battery under charge. Detection circuitry detects an increase in internal battery conductance or a decrease in internal battery resistance and provides an output. The output is indicative of a thermal runaway condition in the battery. The circuitry can be used to provide feedback which controls charging of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.