蜂巢式液冷电池模块传热特性的试验研究  

Experiment Study on Heat Transfer Characteristics ofHoneycomb Liquid Cooled Battery Module

作　　者：冯能莲[1] 董士康 李德壮 陈龙科 丰收 Feng Nenglian;Dong Shikang;Li Dezhuang;Chen Longke;Feng Shou(Faculty of Environmental and Life, Beijng University of Technology, Beijng 100124;DIAL EV Co., Ltd., Ningbo 315500)

机构地区：[1]北京工业大学环境与生命学部,北京100124 [2]帝亚一维新能源汽车有限公司,宁波315500

出　　处：《汽车工程》2020年第5期658-664,共7页Automotive Engineering

基　　金：国家自然科学基金(51075010);北京市教育委员会重点项目(KZ200910005007)资助。

摘　　要：为4 A·h的21700型锂离子电池研发了蜂巢式液冷电池模块,并通过搭建的试验平台测定其充/放电过程的传热特性。结果表明:在25℃环境温度下,0.5C恒流恒压充电和1C恒流放电过程中,电池模块的最大温差均被控制在2℃以内;40℃环境温度下,1C恒流放电过程中,当冷却液流量大于1 L/min时电池模块的最大温差能保持在所要求的5℃以内。说明蜂巢式液冷电池模块冷却性能优良,可为未来电池热管理方案的设计提供技术支撑。A novel honeycomb liquid cooled battery module is developed for a 21700 lithium-ion battery with a capacity of 4 A·h and a test platform is constructed to measure the heat-transfer characteristics of the battery module.The results show that under an ambient temperature of 25℃,the maximum temperature difference of the battery module is less than 2℃in the processes of both 0.5C constant-current/constant voltage charging and 1C constant-current discharging.When the ambient temperature rises to 40℃with a cooling liquid flow rate larger than 1 L/min,the maximum temperature difference of the battery module can maintain at below the limit value of 5℃in the course of 1C constant-current discharging.It is demonstrated that honeycomb liquid cooled battery module has a good cooling performance,providing technical supports for the design of battery thermal management scheme in the future.

关 键 词：锂离子电池 蜂巢式液冷电池模块 传热特性 电池热管理 

分 类 号：TM9[电气工程—电力电子与电力传动]