基于热管技术的锂离子动力电池散热系统

doi:10.16085/j.issn.1000-6613.2015.01.006

化工进展 ›› 2015, Vol. 34 ›› Issue (1): 37-43.DOI: 10.16085/j.issn.1000-6613.2015.01.006

基于热管技术的锂离子动力电池散热系统

曾健, 陆龙生, 陈维, 何浩

华南理工大学机械与汽车工程学院, 广东广州 510630

收稿日期:2014-05-12 修回日期:2014-06-30 出版日期:2015-01-05 发布日期:2015-01-05
通讯作者: 陆龙生,副教授。E-mail meluls@scut.edu.cn。
作者简介:曾健(1992-),男,硕士研究生。E-mail Ken_Tsang@foxmail.com。
基金资助:
中央高校基本科研业务费(201320)。

Thermal control module using heat pipe for lithium-ion battery

ZENG Jian, LU Longsheng, CHEN Wei, HE Hao

School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510630, Guangdong, China

Received:2014-05-12 Revised:2014-06-30 Online:2015-01-05 Published:2015-01-05

摘要/Abstract

摘要： 基于对大功率锂离子动力电池温升和温度场分布的研究,设计了一种基于热管技术的锂离子动力电池散热模块。实验结果表明,采用所设计的散热模块能够有效降低电池壁面温度,使其壁面最高温度低于40℃,与无热管理条件相比降幅高达10℃,满足锂离子动力电池最佳工作温度范围。对散热模块与纯热管的散热性能进行对比,发现散热模块比单纯使用热管的散热效果和均温效果更好。此外,采用有限元模拟软件Fluent分析复合风冷翅片和U型热管模块蒸发段几何尺寸对散热模块性能的影响,发现复合风冷翅片能够有效提高模块散热性能以及不同的蒸发段几何分布会影响电池壁面温度和温度场分布。当U型热管蒸发段的垂直段和水平段长度比为1时,散热模块散热性能最好。

关键词: 锂离子电池, 热管, 热管理, 有限元, 模拟

Abstract: Based on our research on temperature rise and temperature field of high-capacity lithium-ion battery for vehicles, a thermal control module using heat pipe was designed. Our experiment showed that the thermal control module could decrease the wall temperature of the battery efficiently, restricting it below 40℃, a reduction of over 10℃ compared with that without thermal control, which met the favorable operation temperature range for lithium-ion battery. Comparison of performance between the thermal control module and heat pipe itself showed better performance of heat dissipation and temperature uniformity by using the thermal control module. Additionally, research with FEM simulation software Fluent on the influence of forced convection fins and geometry of the evaporator of U-shape heat pipe on the performance of module was conducted. Forced convection fins could obviously enhance the performance of the module, and geometry of the evaporator of the U-shape heat pipe could affect the temperature field of the battery. When the ratio of vertical length to horizontal length was 1, best thermal control performance could be achieved.

Key words: lithium-ion battery, heat pipe, thermal control, FEM, simulation

中图分类号:

TQ152

曾健, 陆龙生, 陈维, 何浩. 基于热管技术的锂离子动力电池散热系统[J]. 化工进展, 2015, 34(1): 37-43.

ZENG Jian, LU Longsheng, CHEN Wei, HE Hao. Thermal control module using heat pipe for lithium-ion battery[J]. Chemical Industry and Engineering Progree, 2015, 34(1): 37-43.

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基于热管技术的锂离子动力电池散热系统

Thermal control module using heat pipe for lithium-ion battery

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