Numerical and Experimental Investigation on the Performance of Battery Thermal Management System Based on Micro Heat Pipe Array

YANG Lulu, XU Hongbo, ZHANG Hainan, CHEN Yiyu, LIU Ming, TIAN Changqing

热科学学报 ›› 2022, Vol. 31 ›› Issue (5) : 1531-1541.

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Journal of Thermal Science

热科学学报
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热科学学报 ›› 2022, Vol. 31 ›› Issue (5) : 1531-1541. DOI: 10.1007/s11630-022-1604-y  CSTR: 32141.14.JTS-022-1604-y
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Numerical and Experimental Investigation on the Performance of Battery Thermal Management System Based on Micro Heat Pipe Array

  • YANG Lulu1,2, XU Hongbo1*, ZHANG Hainan1, CHEN Yiyu1,2, LIU Ming1,2, TIAN Changqing1,2
作者信息 +

Numerical and Experimental Investigation on the Performance of Battery Thermal Management System Based on Micro Heat Pipe Array

  • YANG Lulu1,2, XU Hongbo1*, ZHANG Hainan1, CHEN Yiyu1,2, LIU Ming1,2, TIAN Changqing1,2
Author information +
文章历史 +

摘要

动力电池热管理对于保证电动汽车和混合动力汽车的安全、长效运行是非常关键的。本文首先采用数值模拟方法对电池单体和模块的温度场进行分析，结果证实电池单体和模块的最高温度和最大温差均随电池充放电倍率的增加而升高。在室温为20℃的自然冷却条件下，当电池模块充放电倍率为2C时，其最高温度可以达到61.1℃。本文采用了一种基于平板微热管阵列的电池热管理系统，并通过实验对比了不同冷却条件的电池模块的冷却效果，包括自然冷却、平板微热管阵列和风扇辅助的平板微热管阵列冷却。采用风扇辅助的平板微热管阵列冷却方式下，电池模块在2C倍率下的最高温度为43.4℃，远低于仅采用自然冷却下的温度水平。同时采用平板微热管阵列的冷却方案也明显降低了电池温差。实验结果证明了基于平板微热管阵列的电池热管理系统在保证电池工作温度范围和温度均匀性方面的可靠性和优越性。

Abstract

Battery thermal management is very crucial for the safe and long-term operation of electric vehicles or hybrid electric vehicles. In this study, numerical simulation method is adopted to simulate the temperature field of Li-ion battery cell and module. It is proved that the maximum temperature and maximum temperature difference of battery cell and module increase with the increase of charge/discharge rate (C-rate) of the battery. For battery module, it can reach a maximum temperature of 61.1°C at a C-rate of 2 under natural convection condition with the ambient temperature of 20.0°C. A battery thermal management system based on micro heat pipe array (BTMS-MHPA) is deeply investigated. Experiments are conducted to compare the cooling effect on the battery module with different cooling methods, which include natural cooling, only MHPA, MHPA with fan. The maximum temperature of battery module which is cooled by MHPA with a fan is 43.4°C at a C-rate of 2, which is lower than that in the condition of natural cooling. Meanwhile, the maximum temperature difference was also greatly reduced by the application of MHPA cooling. The experimental results confirm that the feasibility and superiority of the BTMS-MHPA for guaranteeing the working temperature range and temperature uniformity of the battery.

关键词

battery thermal management / micro heat pipe array / Li-ion battery / temperature field

Key words

battery thermal management / micro heat pipe array / Li-ion battery / temperature field

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YANG Lulu, XU Hongbo, ZHANG Hainan, CHEN Yiyu, LIU Ming, TIAN Changqing. Numerical and Experimental Investigation on the Performance of Battery Thermal Management System Based on Micro Heat Pipe Array[J]. 热科学学报, 2022, 31(5): 1531-1541 https://doi.org/10.1007/s11630-022-1604-y
YANG Lulu, XU Hongbo, ZHANG Hainan, CHEN Yiyu, LIU Ming, TIAN Changqing. Numerical and Experimental Investigation on the Performance of Battery Thermal Management System Based on Micro Heat Pipe Array[J]. Journal of Thermal Science, 2022, 31(5): 1531-1541 https://doi.org/10.1007/s11630-022-1604-y

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基金

The authors gratefully acknowledge the financial support from National Key R&D Program of China (2018YFE0111200).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022
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