大容量锂电池液冷冷却结构设计及仿真分析  

Structure design and simulation analysis of liquid cooling in large capacity Li-ion batteries

作　　者：唐爱坤[1] 娄刘生 单春贤[1] 李建明 TANG Ai-kun;LOU Liu-sheng;SHAN Chun-xian;LI Jian-ming(School of Energy and Power Engineering, Jiangsu University, Zhenjiang Jiangsu 212013, China)

机构地区：[1]江苏大学能源与动力工程学院,江苏镇江212013

出　　处：《电源技术》2019年第5期775-777,791,共4页Chinese Journal of Power Sources

基　　金：江苏高校优势学科建设工程项目(PAPD)

摘　　要：针对大容量锂离子电池组,建立了三维热模型,获取了锂电池在1 C、2 C和3 C条件下的温升特性。通过对微通道液体冷却结构的设计和CFD仿真模型,分析了在1 C放电条件下的冷却效果。仿真结果表明,采用微通道的冷却结构能够有效降低电池组温度,通过改变冷却液流量和入口温度能有效改善电池组温升和温度均匀性,从而使电池组工作在合理范围内。For the large-capacity lithium-ion battery, a three-dimensional heat model was established and the temperature rise characteristics of the lithium battery under 1С, 2С and 3С conditions were obtained. Through the design of microchannel liquid cooling structure and the CFD simulation model, the cooling effect under 1С rate discharge was analyzed. The simulation results show that the microchannel cooling structure can effectively reduce the battery temperature. By changing the coolant flow rate and inlet temperature, the temperature rise and temperature uniformity of the battery can be effectively improved, and the battery pack can operate within a reasonable range.

关 键 词：锂离子电池 微通道 液冷 生热模型 

分 类 号：TM912.9[电气工程—电力电子与电力传动]