Cooling performance of cylindrical battery pack based on thermal management system with heat pipe

GAN Yunhua; WANG Jianqin; LIANG Jialin

doi:10.11949/j.issn.0438-1157.20171141

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Cooling performance of cylindrical battery pack based on thermal management system with heat pipe

更新时间：2025-12-10

- Cooling performance of cylindrical battery pack based on thermal management system with heat pipe
- CIESC Journal Issue 5, Pages: 1964-1971(2018)
- 作者机构：
  
  1. 华南理工大学电力学院,广东,广州,510640
  2. 广东省能源高效低污染转化工程技术研究中心,广东,广州,510640
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171141
  CLC： K16
- Online First：05 May 2018，
  
  Published：05 May 2018
- 稿件说明：
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GAN Yunhua, WANG Jianqin, LIANG Jialin. Cooling performance of cylindrical battery pack based on thermal management system with heat pipe[J]. CIESC Journal, 2018, (5): 1964-1971.
DOI：

GAN Yunhua, WANG Jianqin, LIANG Jialin. Cooling performance of cylindrical battery pack based on thermal management system with heat pipe[J]. CIESC Journal, 2018, (5): 1964-1971. DOI： 10.11949/j.issn.0438-1157.20171141.

摘要

热管理系统结构的合理设计是提高电池冷却性能的关键。针对圆柱形电池包，设计了热管与导热元件复合散热结构，并建立了数值仿真模型。通过实验验证了仿真模型的准确性。模拟分析了导热元件对电池模块冷却性能的影响，结果表明：加入导热元件可增大电池与热管之间的接触面积，显著提高电池模块冷却性能；导热元件与电池接触面的圆周角越大，电池与导热元件的接触面积也越大，电池模块的冷却性能越好，而当圆周角大于95°时，圆周角对电池冷却效果的影响较小；增加导热元件厚度能降低电池模块的温度，但效果不明显，建议厚度控制在4 mm以下为宜。

Abstract

The reasonable design of a thermal management system is a key to improve the battery cooling performance. A battery thermal management system based on the combination of heat pipe and conduction element is proposed for a cylindrical battery pack. A numerical model is developed and validated with experimental results. The effect of conduction element on the thermal performance of the proposed thermal management system is numerically investigated. The results show that the conduction element significantly improves the thermal performance of the proposed thermal management system due to the increase of the contact area between conduction elements and batteries. The thermal performance can be improved by increasing the circumference angle between conduction elements and batteries to enlarge the contact area. But this improvement effect is slight when the circumference angle is greater than 95°. Its temperature can be slightly decreased by increasing the thickness of conduction element

and it is suggested that the thickness should be within 4 mm.

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