电动汽车动力电池保温性能设计与分析  

Design and analysis of thermal insulation performance of electric vehicle power battery

作　　者：姚丽君 YAO Lijun(Envision Ruitai Dynamics Technology(Shanghai)Co.,Ltd.,Shanghai,200120,China)

机构地区：[1]远景睿泰动力技术(上海)有限公司,上海200120

出　　处：《电池工业》2022年第1期14-18,共5页Chinese Battery Industry

摘　　要：目前制约电动汽车在高寒地区发展的因素,主要是动力电池低温容量衰减限制整车续航里程等问题。动力电池组的安全、使用容量和寿命是决定电动汽车安全性和续航里程的重要原因。锂电池的安全性和性能受温度的影响很大,以某88 AH三元锂电池为研究对象,建立了动力电池的仿真模型,试验与计算结果在误差范围内十分吻合。设计了某电动汽车动力电池组保温隔热系统,并建立相应仿真模型进行分析,仿真结果显示保温隔热系统可使电芯处在低温环境下,温度增加相对增加10℃,电芯温差最大减小6℃,且当电芯处于高温环境条件下,保温隔热系统能够有效阻绝外界辐射对电芯温度的影响。At present,main block of popularize of pure electric vehicle on cold region is short drive range caused by power battery capacity loss under low temperature.Safety,usable capacity and cycle life of power battery have great impact on pure electric vehicle’s safety and drive range.Consideration of great impact of temperature on safety and performance of lithium battery,we set up simulation model based on 88 AH lithium battery.Test result shows good consistency with simulation data.Then we designed a heat preservation system for power battery and set up simulation model,simulation shows that power battery work well under low and high temperature.

关 键 词：电动汽车 锂离子电 热仿真 保温隔热系统 

分 类 号：TM912[电气工程—电力电子与电力传动]