锂离子电池电热触发热失控泄漏毒物研究

Research of leaked toxics from Li-ion battery electrical heat triggering thermal runaway

为探究锂离子电池电热触发热失控过程,本工作在研究和建立电热触发锂离子电池热失控方法的基础上,对不同荷电状态下18650锂离子电池进行电热触发热失控,分析了电热触发18650锂离子电池热失控现象,对热失控过程中泄露的气体进行采集与分析。研究结果表明,电热方法可以触发18650锂离子的热失控,该热失控过程中会产生有毒气体,同时伴随浓烟和高温,防护不当将对人体和环境造成伤害。

In order to explorer the thermal runaway process of Li-ion batteries,based on the research and establishment of the Li-ion batteries thermal runaway method,the thermal runaway phenomenon of 18650 Li-ion batteries was analyzed by electrical heating trigger under different charging states,The gas leaked through thermal runaway process was both collected and analyzed.The results show that the electrical heating method can triggering the thermal runaway of 18650 Li-ion batteries,which will produce toxic gases,accompanied with smoke and high temperature.Improper protection will cause harm to human body and environment.