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

Author

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

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.

Suggested Citation

  • Xu, Xinyue & Li, Peihang & Weng, Keyu & Zheng, Pengjun & Feng, Yufan & Liu, Da & Hu, ShengXin & Qu, Weiping & Shao, Jin & Zou, Deqiu, 2025. "Tubeless shape-stabilized phase change materials channels for all-climate battery thermal management," Energy, Elsevier, vol. 330(C).
    • Handle: RePEc:eee:energy:v:330:y:2025:i:c:s0360544225025149
    DOI: 10.1016/j.energy.2025.136872
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