锂电池不同形式冷板结构优化与热管理性能研究  

Research on Structural Optimization and Thermal Management Performance of Different Cold Plate Types for Lithium Batteries

作　　者：高春艳 刘宏波 梁坤峰 洪连杰 韩依梦 GAO Chunyan;LIU Hongbo;LIANG Kunfeng;HONG Lianjie;HAN Yimeng(School of Vehicle and Transport Engineering,Henan University of Science and Technology,Luoyang 471003,China)

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《河南科技大学学报(自然科学版)》2025年第1期1-7,M0002,共8页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(52378094,52376005);河南省科技发展项目(232102111120);洛阳市科技发展计划项目(2302035A)。

摘　　要：为改善锂电池散热问题,提高电池使用寿命和安全性,通过仿真与实验结合的方法,对3种不同类型的冷板散热能力与功耗进行了对比分析。分别选择最高温度、温差、压差作为优化目标进行结构设计优化。结果表明:优化后3种类型冷板的散热性能明显提高。双通道板翅式冷板电芯最高温度和温差为43.79℃/3.93℃,温差与压差分别提高了7.96%和48.03%;冲压冷板双回路结构下电芯最高温度和温差为43.00℃/3.04℃,温差提高了40.69%;通过改变型材冷板进出口位置和部分流道长度,解决了冷板内冷却液的“回流”问题,散热性能也有所改善,电芯最高温度和温差为44.37℃/2.88℃,最高温度和温差分别提高了2.29%和31.10%。In order to improve the heat dissipation problem of lithium batteries and increase battery life and safety,a comparative analysis of the heat dissipation capacity and power consumption of three different types of cold plates was conducted by combining simulation and experiment.The maximum temperature,temperature difference and pressure difference were selected as optimization targets for the structural design optimized.The results show that the heat dissipation performance of the three types of cold plates after optimization is significantly improved.The maximum temperature and temperature difference of the dual-channel plate-fin cold plate battery cell are 43.79℃/3.93℃,and the temperature difference and pressure difference increased by 7.96%and 48.03%respectively.The maximum temperature and temperature difference of the battery cell under the double-circuit structure of the stamped cold plate are 43℃/3.04℃,and the temperature difference are increased by 40.69%.By changing the inlet and outlet positions and the length of some flow channels,the"backflow"problem of the profile cold plate is solved,and the heat dissipation performance is also improved.The maximum temperature and temperature difference of the battery cell are 44.37℃/2.88℃,and the maximum temperature and temperature difference increased by 2.29%and 31.10%respectively.

关 键 词：冷板 优化 热管理 锂离子电池 

分 类 号：U469.72[机械工程—车辆工程]