Sandwich Structure Design of a Cooling Fin for Battery Modules Against Impact Loads
作者机构：State Key Laboratory of Automotive Safety and EnergyTsinghua UniversityBeijing 100084China State Key Laboratory of Vehicle NVH and Safety TechnologyChongqing 401120China
出 版 物：《Automotive Innovation》 (汽车创新工程（英文）)
年 卷 期：2020年第3卷第3期
页 面：260-269页
核心收录：
学科分类：082304[工学-载运工具运用工程] 08[工学] 080204[工学-车辆工程] 0802[工学-机械工程] 0823[工学-交通运输工程]
基 金：This study is supported by the National Natural Science Foundation of China(Grant Nos.51675294 and U1564205) the International Science and Technology Cooperation Program of China(Grant No.2016YFE0102200) the State Key Laboratory of Vehicle NVH and Safety Technology(Contract No.NVHSKL-201907)
主 题：Lithium-ion battery Impact protection Sandwich configuration Cooling fin
摘 要：Lithium-ion batteries(LIBs)are widely employed in electric vehicles owing to their high power density,long cycle life,and environmental ***,LIBs are hazardous in the event of a crash,leading to thermal *** this study,the basic structure of a battery module is analyzed to improve the crashworthiness of LIBs.A simplified finite element model of the battery module structure,which is a battery unit composed of two pouch cells and a cooling fin,is set up and verified by conducting module-level *** simulation results reveal that the cooling fin in the battery module has the potential to absorb *** sandwich configurations are introduced to modify the cooling *** a unidirection-ally stiffened double hull USDH structure serving as an example,a parametric analysis is conducted,demonstrating that the sandwich height does not influence the areal density;a small height of 3 mm can make the material work sufficiently while avoiding early buckling of the ***,the crashworthiness of different sandwich configurations with the same areal density and height is compared,leading to three deformation *** and circular core structures are found to be able to effectively reduce the peak force and improve the energy absorption ability.
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