Battery heat dissipation performance based on composite phase change material-heat pipe

被引：0

作者：

Huang L. ^{[1
]}

Qi Y. ^{[1
,2
]}

Wang Y. ^{[1
]}

Jiang S. ^{[3
]}

机构：

[1] School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai

[2] Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai

[3] Jiangsu Jiahe Thermal Systems Inc, Jiangsu, Yangzhou

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 11期

关键词：

battery heat dissipation; composite phase change material; heat pipe; hexadecanoic acid; paraffin; ternary lithium battery;

D O I：

10.16085/j.issn.1000-6613.2023-0032

中图分类号：

学科分类号：

摘要：

For the 18650 ternary lithium battery in the high rate cycle charge and discharge, the battery pack temperature is higher than its safe operation range due to the untimely heat dissipation, which causes the safety problems such as spontaneous combustion. A new composite phase change material (CPCM) of paraffin-hexadecanoic acid was prepared, and the heat dissipation mode of the composite phase change material-heat pipe (CPCM-HP) coupling was proposed. When paraffin-hexadecanoic acid mixing ratio was 3∶1, the best heat dissipation effect was achieved, possessing the lowest phase change temperature of 43.3℃, which was reduced by 11.8% relative to pure paraffin. Under 3C discharge, the maximum temperature and maximum temperature difference of CPCM-HP were reduced by 7.1℃ and 1.4℃, respectively, compared with CPCM heat dissipation system. For CPCM-HP heat dissipation mode at 30℃ under the “3C discharge-1C charge” mode, the battery pack was maintained at about 46.5℃, the maximum temperature did not exceed 50℃ during the whole cycle, and the maximum temperature difference was controlled below 1.5℃, that is, the battery pack was always kept within the safe temperature range. The experimental results showed that CPCM-HP has better heat dissipation performance than CPCM. © 2023 Chemical Industry Press. All rights reserved.

引用

页码：5680 / 5688

页数：8

共 24 条

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