蜂巢式液冷电池模块传热特性的试验研究*

doi:10.19562/j.chinasae.qcgc.2020.05.014

摘要/Abstract

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1L/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。

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

Abstract: 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

Key words: lithium-ion battery, honeycomb liquid cooled battery module, heat transfer characteristics, battery thermal management

冯能莲, 董士康, 李德壮, 陈龙科, 丰收. 蜂巢式液冷电池模块传热特性的试验研究^*[J]. 汽车工程, 2020, 42(5): 658-664.

Feng Nenglian, Dong Shikang, Li Dezhuang, Chen Longke, Feng Shou. Experiment Study on Heat Transfer Characteristics of Honeycomb Liquid Cooled Battery Module[J]. Automotive Engineering, 2020, 42(5): 658-664.

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蜂巢式液冷电池模块传热特性的试验研究^*

Experiment Study on Heat Transfer Characteristics of Honeycomb Liquid Cooled Battery Module

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