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.
作者
吴晓刚
齐明山
杜玖玉
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)
出处
《汽车工程》
EI
CSCD
北大核心
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。
关键词
锂电池
充电
冷却系统
温度均匀性
lithium battery
charging
cooling system
temperature evenness
