Tubeless shape-stabilized phase change materials channels for all-climate battery thermal management

Xinyue Xu, Peihang Li, Keyu Weng, Pengjun Zheng, Yufan Feng, Da Liu, ShengXin Hu, Weiping Qu, Jin Shao and Deqiu Zou

Energy, 2025, vol. 330, issue C

Abstract: As power batteries are widely used, the need for efficient thermal management is increasing. Combining multiple cooling methods is a trend, but it raises costs and weight. Developing a battery thermal management system (BTMS) suitable for different climates is essential. This paper proposes an all-climate BTMS using dual-function shape-stabilized phase change material (SSPCM) channels coupled with graphene oxide (GO) emulsion. The innovative SSPCM channel, with high thermal (21.21 W m−1 K−1) and electrical (456.49 S/m) conductivity, allows direct coupling with liquid cooling, enabling both cooling and preheating of the battery. The GO emulsion enhances thermal conductivity by 36.96 % and reduces supercooling by 11.39 °C compared to pure phase change emulsion (PCE). The proposed BTMS, using SSPCM channels, shows better thermal management performance compared to the GO emulsion/Metal channel system, reducing the maximum temperature (Tmax) by 5.4 °C and the temperature difference (ΔTmax) by 1.9 °C. The system's preheating rate is 3.05 °C/min, and the ΔTmax under various conditions is below 5 °C. This approach, combining SSPCM with phase change emulsion, offers a promising solution for power battery thermal management.

Keywords: Battery thermal management; Shape-stabilized phase change material; Graphene oxide emulsion; Preheating; Cooling (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:330:y:2025:i:c:s0360544225025149

DOI: 10.1016/j.energy.2025.136872

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