不同充电倍率下锂离子电池组冷却系统结构设计  

Structure Design of Lithium-ion Battery Cooling System at Different Charging Rates

作　　者：吴晓刚[1] 齐明山 杜玖玉[2] N.I.Shchurov A.A.Shtang Wu Xiaogang;Qi Mingshan;Du Jiuyu;N.I.Shchurov;A.A.Shtang(Harbin University of Science and Technology,Automotive Electronic Drive Control and System Integration Engineering Research Center of Ministry of Education,Harbin 150080;Tsinghua University,State Key Laboratory of Automobile Safety and Energy,Beijing 100084;Novosibirsk Technical University,Department of Electrical Engineering Complexes,Novosibirsk 630073,Russia)

机构地区：[1]哈尔滨理工大学,汽车电子驱动控制与系统集成教育部工程研究中心,哈尔滨150080 [2]清华大学,汽车安全与节能国家重点实验室,北京100084 [3]俄罗斯新西伯利亚国立技术大学电气工程教研室,俄罗斯新西伯利亚630073

出　　处：《汽车工程》2022年第4期482-494,共13页Automotive Engineering

基　　金：国家自然科学基金(51877057,51877121,52011530033)资助。

摘　　要：针对锂离子电池组在不同充电倍率下最高温度和单体温度均匀性的要求,在构建动力电池热模型的基础上,以抑制电池组内最高温度和最大温差为目标,仿真分析了液冷板布置位置、流道设计和冷板出入口位置等因素对电池组温度的影响规律。仿真结果表明,本文所设计的冷却系统,在电池组以2C倍率充电时,最高温度可控制在35.5℃,温差不超过5℃。Aiming at the requirements of highest temperature and temperature evenness on lithium-ion battery pack at different charging rates,the thermal model for traction battery is constructed and a simulation is conducted with suppressing the highest temperature and maximum temperature difference as objectives to analyze the effects of the arrangement of liquid cooling plates,flow path design and the position of cooling inlet and outlet on the thermal status of battery pack. The results of simulation show that with the cooling system designed,the highest temperature and maximum temperature difference of battery pack can be controlled at below 35.5 ℃ and 5 ℃ respectively at a charging rate of 2C.

关 键 词：锂电池 充电 冷却系统 温度均匀性 

分 类 号：TM912[电气工程—电力电子与电力传动]