【摘 要】
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Thermal runaway(TR)propagation within a large format lithium ion battery module includes two stages:the Initiation Stage and the Propagation Stage.Experiments were conducted to investigate the mechani
【机 构】
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BMW China Services Ltd. State Key Laboratory of A
论文部分内容阅读
Thermal runaway(TR)propagation within a large format lithium ion battery module includes two stages:the Initiation Stage and the Propagation Stage.Experiments were conducted to investigate the mechanisms of TR initiation at single cell and TR propagation in a battery module.A lumped TR propagation model was built based on heat transfer theory,and was calibrated by experiment data.The calibrated TR propagation model can analyze the heat transfer amount through different paths during TR propagation.Base on analysis on the heat transfer paths,methods were proposed to prevent TR propagation within battery module.TR propagation can be successfully prevented according to the method proposed,which is verified by experiment.
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