基于相变传热的动力锂离子电池散热结构  

Heat dissipation structure of power Li-ion battery based on phase change heat transfer

作　　者：刘霏霏 袁康 李骏 黄琴 LIU Fei-fei;YUAN Kang;LI Jun;HUANG Qin(School of Mechatronics and Vehicle Engineering,East China Jiaotong University,Nanchang,Jiangxi 330013,China)

机构地区：[1]华东交通大学机电与车辆工程学院,江西南昌330013

出　　处：《电池》2020年第6期547-551,共5页Battery Bimonthly

基　　金：国家自然科学基金项目(51806066);江西省自然科学基金(青年基金)项目(20181BAB216023)。

摘　　要：根据锂离子电池生-传热机理,设计电池单体单独成组、电池单体之间嵌入相变材料以及使用相变材料-散热片-风冷耦合等3种散热方案。采用有限元软件ANSYS,仿真不同放电倍率下电池模组的温度分布。在相变材料-散热片-风冷耦合的散热条件下,电池以2.00 C倍率放电的最高温度为39.33℃,最大温差仅为3.06℃。According to the heat generation-transfer mechanism of Li-ion battery,three heat dissipation schemes were designed,such as separate battery cells,phase change materials embedded between battery cells and using phase change material-heat sink-air-cooled coupling.Finite element software ANSYS was used to simulate temperature distribution of the battery module under different discharge rates.Under the heat dissipation condition of phase change material-heat sink-air cooling coupling,when the battery was discharged at 2.00 C,the maximum temperature was 39.33℃,the maximum temperature difference was only 3.06℃.

关 键 词：锂离子电池 散热结构 ANSYS仿真 温度分布 相变 

分 类 号：TM912.9[电气工程—电力电子与电力传动]