Study on Structural Optimization and Thermal Management Performance of Embedded Composite Cooling Plate Based on Wavy Channel

Cai Yunxiang; Sun Qin; Zhang Bobo; Gu Xiaobin; Zhang Yanjun; Dong Kaijun

doi:10.12465/j.issn.0253-4339.2025.06.045

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Study on Structural Optimization and Thermal Management Performance of Embedded Composite Cooling Plate Based on Wavy Channel

更新时间：2025-12-03

- Study on Structural Optimization and Thermal Management Performance of Embedded Composite Cooling Plate Based on Wavy Channel
- Journal of Refrigeration Vol. 46, Issue 6, Pages: 45-55(2025)
- 作者机构：
  
  1.中国科学技术大学能源科学与技术学院　合肥　 230026
  2.中国科学院广州能源研究所　广东省可再生能源重点实验室　广州　 510640
- 作者简介：
  
  Sun Qin, female, engineer, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, 86-13632184689, E-mail: sunqin@ms.giec.ac.cn. Research fields: thermal management of electric devices and energy-saving technology of refrigeration.
- 基金信息：
- DOI：10.12465/j.issn.0253-4339.2025.06.045
  CLC： TB61⁺1;TQ026;TQ021.3
- Received：18 June 2024，
  
  Revised：2024-09-11，
  
  Accepted：26 September 2024，
  
  Published：16 December 2025
- 稿件说明：
移动端阅览
Cai Yunxiang, Sun Qin, Zhang Bobo, et al. Study on Structural Optimization and Thermal Management Performance of Embedded Composite Cooling Plate Based on Wavy Channel[J]. Journal of Refrigeration, 2025, 46(6): 45-55.
DOI：

Cai Yunxiang, Sun Qin, Zhang Bobo, et al. Study on Structural Optimization and Thermal Management Performance of Embedded Composite Cooling Plate Based on Wavy Channel[J]. Journal of Refrigeration, 2025, 46(6): 45-55. DOI： 10.12465/j.issn.0253-4339.2025.06.045.

摘要

高效的电池热管理系统对锂电池安全运行至关重要，本文设计了一种基于波浪形流道的内嵌式复合冷板，耦合了相变材料和液体冷却，可用于锂电池的热管理。针对热饱和相变材料恢复潜热的过程，提出一种可量化分析不同结构配置的潜热恢复性能、流动能耗和综合性能的评估方法，通过对比综合性能得出内嵌式复合冷板的最优结构配置（圆弧流形-圆形截面-双流道-横截面积36 mm

-圆弧角150°），并通过实验验证了数值模型的有效性。基于优化的冷板结构，使用面热源模拟了锂电池3 C倍率运行期间的产热，并研究了基于不同相变材料液相分数的液冷延迟启动策略对冷却效果的影响。结果表明：当相变材料液相分数达到0.6时开启液冷可以获得最好的温度性能，冷板侧面的最高温度为38.32 ℃，最大温差为1.66 ℃，液冷运行时间相比持续液冷模式减少50.50%。

Abstract

An efficient thermal-management system is crucial for the safe o

peration of lithium batteries. In this study

an embedded composite cooling plate integrating wavy flow channels with a phase-change material (PCM) and liquid cooling was designed for the thermal management of lithium batteries. From the perspective of recovering the latent heat of a thermally saturated PCM

an evaluation method was proposed to quantitatively analyze the latent heat recovery performances

pumping energy consumptions

and overall performances of different structural configurations. The optimal structural configuration was determined by comparing the overall performances. This configuration included a circular flow shape

circular cross-section

double channels

a cross-sectional area of 36 mm

and a circular arc angle of 150°. The validity of the established numerical model was experimentally verified. Based on the optimal cooling plate structure

the heat generation of lithium batteries during 3 C rate operation was simulated using a surface heat source

and the effects of several delayed-start strategies for liquid cooling based on the PCM liquid-phase fraction on cooling performance were investigated. The results showed that the best temperature performance could be achieved by switching on the liquid cooling when the PCM liquid phase fraction reached 0.6

achieving a maximum temperature for the cooling plate of 38.32 ℃ and maximum temperature difference of 1.66 ℃

while decreasing the running time of the liquid cooling by 50.50% compared with that of the continuous mode.

关键词

Keywords

references

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