基于相变材料和液冷的LiFePO_4电池包热管理研究  

Research on active-passive thermal management system of LiFePO_4 battery pack

作　　者：魏增辉[1,2] 许思传[1,2] 李钊[1,2] 林春景[1,2] 常国峰[1,2] 

机构地区：[1]同济大学汽车学院,上海201804 [2]同济大学新能源汽车工程中心,上海201804

出　　处：《电源技术》2016年第1期44-46,69,共4页Chinese Journal of Power Sources

基　　金：国家"973"重点基础研究发展计划(2011CB711203)

摘　　要：将相变材料和液冷管路相结合用于Li Fe PO4电池包热管理系统,研究在相变材料完全融化前,液冷开启时刻对电池温升的影响;同时研究了不同冷却液流速对电池温升的影响。结果表明:在相变材料相变结束时,冷却液开启时刻越早,电池温降的斜率越小;随着冷却液流速的增加,电池的温升及温差逐渐减小。In order to control the temperature of the LiFePO4battery, phase change materials and liquid cooling were applied to the thermal management system of the battery pack. Before the phase change materials were totally melt, different opening time of the liquid cooling are simulated. Besides, models were built to analysis the relationship between the liquid velocity and the temperature of the battery. The results show that the temperature is lower when the liquid loop opens earlier. And the temperature difference would be smaller when the liquid velocity was higher.

关 键 词：LiFePO4电池 热管理 相变材料 液冷 

分 类 号：TM912[电气工程—电力电子与电力传动]