| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technologies and CO2 Management
|
| Presentation Title |
In-situ Electrode Temperature Monitoring and Thermal Runaway Detection of Li-ion Pouch Cell |
| Author(s) |
Bing Li, Mihit H Parekh, Vilas G Pol, Thomas E Adams, James Fleetwood, Casey M. Jones, Vikas Tomar |
| On-Site Speaker (Planned) |
Casey M. Jones |
| Abstract Scope |
The capacity and allowable current of Li-ion batteries (LIBs) have been increasing rapidly to meet the need for high energy density and power output. These LIBs cause catastrophic accidents when they fail, especially when thermal runaway is triggered. To detect the thermal runaway more effectively, it is desirable to monitor the electrode temperature directly. In this work, we embedded resistance temperature detectors (RTDs) into large capacity Li-ion pouch cells. The electrode temperature was monitored during the overcharge test and resultant thermal runaway. The temperature gradient between the electrode and battery surface provides insight into the mechanism of overcharge related heat generation. The internal RTD detected the onset of thermal runaway ~10 s faster than the external RTD, and the maximum electrode temperature detected in thermal runaway was ~200 °C higher than the battery surface temperature. This provides the opportunity for early LIB thermal runaway detection and effective damage control. |
| Proceedings Inclusion? |
Planned: |