混合动力汽车用锂电池组散热系统研究  

Research on cooling system of lithium battery pack for hybrid electric vehicles

作　　者：白龙 倪培永[1] 朱建新 储爱华 陈小丹 BAI Long;NI Pei-yong;ZHU Jian-xin;CHU Ai-hua;CHEN Xiao-dan(College of Mechanical Engineering,Nantong University,Nantong Jiangsu 226019,China;Corun Hybrid Technology Co.,Ltd.,Shanghai 201500,China)

机构地区：[1]南通大学机械工程学院,江苏南通226019 [2]科力远混合动力技术有限公司,上海201500

出　　处：《电源技术》2019年第11期1813-1816,共4页Chinese Journal of Power Sources

基　　金：江苏省研究生科研与实践创新计划(KYCX18_2419);国家“863”计划(2011AA11A207)

摘　　要：电池包由于充放电倍率高,内阻大,电池热负荷高,温度不均匀,严重影响电池的电化学性能、循环寿命、安全性和可靠性。设计了一款用于混合动力汽车用风冷电池包散热结构,并通过STAR-CCM+软件模拟了流场与温度场,达到设计目标。在此基础上,对电池包进行热平衡台架试验。仿真结果与试验结果一致,电池包的最大温差为3℃,最高温度为26.5℃。The heat dissipation performance of the battery has important effects on the performance of the hybrid vehicle. Because of high charge discharge rate and large internal resistance, the cylindrical battery has high heat load and uneven temperature, which seriously affects the electrochemical performance, cycle life, safety and reliability of the battery. In the present study, the air duct of the battery pack was designed, and the flow and heat were simulated by CFD software. On this basis, the heat balance bench test of the battery package was carried out to analyze the influence of several factors on key parameters. The simulation results were consistent with the experimental results. The test results show that the maximum temperature difference of the whole package battery is3 ℃, and the maximum temperature is 26.5 ℃.

关 键 词：锂电池 冷却系统 温度均衡性 CFD仿真 试验验证 

分 类 号：TM912.9[电气工程—电力电子与电力传动]