低速电动车用锂离子电池热失控风险监测研究

Study on the risk of thermal runaway in the lithium ion battery for low speed electric vehicle

针对低速电动车用锂离子电池存在热失控风险的问题,采用正交试验,对不同温度、充电电流、放电电流、电池荷电状态等易引发电池热失控的几个因素进行研究,得出充放电过程中引发电池热失控的主次因素,为锂离子低速电动车用户和电池生产企业降低电池热失控风险提出合理化建议和技术支撑。

In view of the risk of thermal runaway in the lithium ion battery for low speed electric vehicle,orthogonal test is used in this paper,the main factors that causing the risk of thermal runaway,such as different temperature,charging current,discharging current and charge state are studied.The primary and secondary factors that causing the thermal runaway of the battery during charging and discharging are obtained.The suggestions and technical support for reducing the risk of thermal runaway in low-speed electric vehicles and battery manufacturing enterprises are put forward.