期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 132, 期 1, 页码 65-75出版社
SPRINGER
DOI: 10.1007/s10973-017-6888-x
关键词
Lithium-ion battery; Thermal runaway; Discharging; Overcharge; Calorimeter
资金
- National Nature Science Foundation of China [51376172]
To have a better understanding of the thermal behaviors of lithium-ion batteries (LIBs) under discharge and overcharge conditions, some tests were conducted by a cone calorimeter. Several parameters were measured such as the battery surface temperature, voltage, the time to thermal runaway, the time to maximum temperature, heat release rate and total heat released. The results indicate that the lithium-ion battery will have obvious warming up during discharge owing to the reversible heat and irreversible heat. It was observed that the current treatment (discharge) has a significant influence on the thermal behaviors of LIBs. It can accelerate the warming up, result in earlier thermal runaway, and reduce the heat released. In addition, overcharge will make LIBs more unstable and easier to attain the thermal runaway.
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