摘要
Lithium-ion battery packs are made by many batteries, and the difficulty in heat transfer can cause many safety issues. It is important to evaluate thermal performance of a battery pack in designing process. Here, a multiscale method combining a pseudo-two-dimensional model of individual battery and three-dimensional computational fluid dynamics is employed to describe heat generation and transfer in a battery pack. The effect of battery arrangement on the thermal performance of battery packs is investigated. We discuss the air-cooling effect of the pack with four battery arrangements which include one square arrangement, one stagger arrangement and two trapezoid arrangements. In addition, the air-cooling strategy is studied by observing temperature distribution of the battery pack. It is found that the square arrangement is the structure with the best air-cooling effect, and the cooling effect is best when the cold air inlet is at the top of the battery pack. We hope that this work can provide theoretical guidance for thermal management of lithium-ion battery packs.
作者
杜江龙
陶浩兰
陈育新
袁小冬
练成
刘洪来
Jianglong Du;Haolan Tao;Yuxin Chen;Xiaodong Yuan;Cheng Lian;Honglai Liu(State Key Laboratory of Chemical Engineering,Shanghai Engineering Research Center of Hierarchical Nanomaterials,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China;School of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;Dongtai Middle School,Dongtai 224226,China)
基金
Supported by the National Natural Science Foundation of China (Grant Nos. 91834301 and 22078088)
the National Natural Science Foundation of China for Innovative Research Groups (Grant No. 51621002)
the Shanghai Rising-Star Program (Grant No. 21QA1401900)。
