Wei Tang, Xiaoming Xu, Hua Ding, Yaohua Guo, Jicheng Liu, Hongchao Wang
School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, China, 212013.
Tianjin Lishen Battery Joint-Stock Co., Ltd., Tianjin, China, 300384.
ACS Omega. 2020 Apr 1;5(14):8258-8267. doi: 10.1021/acsomega.0c00552. eCollection 2020 Apr 14.
The battery thermal management system (BTMS) using a unidirectional cooling strategy for a battery pack would cause the temperature gradient between the battery cells located at the inlet and outlet of the duct, which would reduce the temperature uniformity of the battery module. In order to solve the problem, the reciprocating cooling strategy was introduced in this paper to study the effect of switching time (τ) on the temperature uniformity of the battery module. Based on this, the flat heat pipe was combined with liquid cooling, in which the efficient heat transfer performance of the flat heat pipe could transfer the heat of the battery cells to the liquid. Using CFD to simulate the proposed BTMS, the result showed that the reciprocating cooling strategy could improve the temperature performance of the BTMS.
采用单向冷却策略的电池组电池热管理系统（BTMS）会导致位于管道进出口处的电池单元之间产生温度梯度，这将降低电池模块的温度均匀性。为了解决该问题，本文引入了往复冷却策略，以研究切换时间（τ）对电池模块温度均匀性的影响。在此基础上，将扁平热管与液体冷却相结合，扁平热管的高效传热性能可将电池单元的热量传递给液体。利用计算流体动力学（CFD）对所提出的BTMS进行模拟，结果表明往复冷却策略可改善BTMS的温度性能。
