摘要
随着电动车与可再生能源存储系统的广泛应用,电池包的保温性能日益成为关键技术指标。本文围绕无模组电池包的保温性能进行设计与分析,以某款纯电动车的电池包为例,运用传热学原理对其箱体进行分析,识别影响电池包保温性能的主要因素。利用CATIA软件构建电池包三维模型,并采用Star-CCM+软件的热流耦合方法对电池包温度场进行仿真模拟。结果表明:电芯在-20℃下保温6 h的降温速率约为367℃/h,在55℃下的升温速率约为283℃/h。通过实验与仿真结合,验证了该电池包保温层可有效满足保温要求,具有良好的应用前景。
With the wide application of electric vehicles and renewable energy storage systems,the insulation performance of battery packs is increasingly becoming a key technical indicator.This paper focuses on the design and analysis of the thermal insulation performance of the module-less battery pack,taking the battery pack of a pure electric vehicle as an example,using the principle of heat transfer to analyze its box,and identifying the main factors affecting the thermal insulation performance of the battery pack.The battery pack was modeled in three dimensions using CATIA software,and the temperature field of the battery pack was simulated using the heat flow coupling method in Star-CCM+.The results show that the cooling rate of the core is about 3.67℃/h when the core held at-20℃for 6h,and the warming rate of the core at 55℃is 2.83℃/h.The experiment and simulation results show that the insulation layer of the battery pack can meet the insulation requirements effectively and has a good application prospect.
作者
邓辉龙
张红松
李家敏
DENG Huilong;ZHANG Hongsong;LI Jiamin(Research and Development Center,Anhui Zhouzhihang Battery Co.,Ltd.,Wuhu,Anhui Province,241000,China;School of Mechanical and Automotive Engineering,Anhui Polytechnic University,Wuhu,Anhui Province,241000,China)
出处
《电池工业》
2025年第6期488-494,共7页
Chinese Battery Industry
关键词
纯电动汽车
无模组电池包
保温性能
高低温工况
pure electric vehicle
module-less battery pack
thermal insulation performance
high and low temperature working conditions
