高倍率锂离子电池组件复合液相材料冷却系统设计

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-07-03 DOI:10.1016/j.icheatmasstransfer.2025.109306

Jianfeng Wang , Bowei Chen , Fen Liu , Yuhan Li , Zhen Liu , Yongkai Jia , Wenyue Li , Chunyan Wang , Ji Zheng , Yanyan Wang

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引用次数: 0

摘要

一个有效的电池热管理系统是必不可少的。为了解决锂离子电池在高倍率充放电条件下的散热问题，本文提出了一种复合相变材料（PCM）冷却结构。采用单因素分析和正交试验的方法，研究了冷板各因素对10C放电条件下锂电池散热性能的影响。结果表明：当冷却剂流量为0.8 m/s、翅片角度为60°、翅片纵向间距为15 mm、横向间距为8 mm时，散热性能最佳；当相变温度为35℃，PCM厚度为3mm时，复合冷板的散热性能最佳。经实验测试，该冷却系统可将电池模块的最高温度（Tmax）控制在39.8℃以下。电池最大温差（ΔTmax）控制在1.6℃以内。电池能耗降低10.7%。综上所述，复合液相材料冷却结构为动力型锂离子电池模块提供了高散热效率、低功耗的有效解决方案。

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Design of composite liquid and phase change material cooling system for high rate lithium-ion battery modules

An efficient battery thermal management system is essential. In this paper, we propose a composite liquid and phase change material(PCM) cooling structure to solve the heat dissipation problem of lithium-ion batteries(LIBs) under high rate charging and discharging conditions. We study the influence of each factor of the cold plate on the heat dissipation performance for LIBs under 10C discharge using the single-factor analysis and orthogonal experiments. The results indicate that the heat dissipation performance is optimal when the coolant flow rate is 0.8 m/s, the fin angle is 60°, the longitudinal spacing of the fins is 15 mm, and the transverse spacing is 8 mm. The heat dissipation performance of composite cold plate is best when the phase change temperature is 35 °C and the thickness of PCM is 3 mm. After experimental test, the cooling system can control the maximum temperature(T_max) of the battery module below 39.8 °C. The maximum temperature difference(ΔT_max) of the battery is controlled within 1.6 °C. Battery energy consumption reduced by 10.7 %. In summary, composite liquid and phase change material cooling structure provides an effective solution with high heat dissipation efficiency and low power consumption for power-type lithium-ion battery modules.

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.