储能用锂离子电池浸没式热均衡性研究  

Research on immersion thermal balance of lithium - ion batteries for energy storage

作　　者：王振宇 张振东[1] 盛雷 付林祥 张晓军 张春风 Wang Zhenyu;Zhang Zhendong;Sheng Lei;Fu Linxiang;Zhang Xiaojun;Zhang Chunfeng(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanxi Lu'an Taihang Lubricant Co.,Ltd,Changzhi 032612,China)

机构地区：[1]上海理工大学机械工程学院,上海200093 [2]山西潞安太行润滑科技股份有限公司,长治032612

出　　处：《低温与超导》2025年第3期45-52,共8页Cryogenics and Superconductivity

基　　金：国家自然科学基金(52472381,52206267)资助。

摘　　要：针对浸没式液冷在流动过程中电池模组温差过大的问题,设计了一种带有流体缓冲区域及导流孔的新型浸没箱体。通过数值仿真,着重探究了导流孔数量、尺寸和形状对电池模组散热性能的影响。结果表明:导流孔数量n为15且直径为5 mm时,此时模组的最高温度Tmax、最大温差ΔTmax及模组中电芯顶面与底面的最大温差ΔTb-t分别为29.74℃、0.97℃、2.89℃,且在导流孔形状为等边六角形时,Tmax、ΔTmax相比于圆孔分别降低了1.04%、16.49%。Aiming at the problem of excessive temperature difference in battery modules during the flow process of immersion liquid cooling,a novel immersion tank with fluid buffer zones and diversion holes was designed.Through numerical simulation,the impacts of the number,size,and shape of the diversion holes on the heat dissipation performance of the battery modules were emphatically explored.The results show that when the number of diversion holes n is 15 and the diameter is 5 mm,the maximum temperature Tmax,the maximum temperature differenceΔTmax,and the maximum temperature difference between the top and bot⁃tom surfaces of the cells in the moduleΔTb-t,is 29.74℃,0.97℃and 2.89℃,respectively.Moreover,when the shape of the diversion holes is equilateral hexagonal,its Tmax andΔTmax are reduced by 1.04%and 16.49%compared with those of circular holes.

关 键 词：电池热管理 浸没式冷却 热均衡性 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]