Thermal management analysis using heat pipe in the high current discharging of lithium-ion battery in electric vehicles

Hamidreza Behi*, Danial Karimi, Mohammadreza Behi, Joris Jaguemont, Morteza Ghanbarpour, Masud Behnia, Maitane Berecibar, Joeri Van Mierlo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
10 Downloads (Pure)

Abstract

Thermal management system (TMS) for commonly used lithium-ion (Li-ion) batteries is an essential requirement in electric vehicle operation due to the excessive heat generation of these batteries during fast charging/discharging. In the current study, a thermal model of lithium-titanate (LTO) cell and three cooling strategies comprising natural air cooling, forced fluid cooling, and a flat heat pipe-assisted method is proposed experimentally. A new thermal analysis of the single battery cell is conducted to identify the most critical zone of the cell in terms of heat generation. This analysis allowed us to maximize heat dissipation with only one heat pipe mounted on the vital region. For further evaluation of the proposed strategies, a computational fluid dynamic (CFD) model is built in COMSOL Multiphysics® and validated with surface temperature profile along the heat pipe and cell. For real applications, a numerical optimization computation is also conducted in the module level to investigate the cooling capacity of the liquid cooling system and liquid cooling system embedded heat pipe (LCHP). The results show that the single heat pipe provided up to 29.1% of the required cooling load in the 8C discharging rate. Moreover, in the module level, the liquid cooling system and LCHP show better performance compared with natural air cooling while reducing the module temperature by 29.9% and 32.6%, respectively.

Original languageEnglish
Article number101893
Pages (from-to)1-13
Number of pages13
JournalJournal of Energy Storage
Volume32
DOIs
Publication statusPublished - Dec 2020

Bibliographical note

Copyright © 2020 The Author(s). Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Computational fluid dynamic (CFD)
  • Heat pipe
  • Liquid cooling system embedded heat pipe (LCHP)
  • Lithium-ion (Li-ion) battery
  • Thermal management system (TMS)

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