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Performance improvement of a novel trapezoid air-cooling battery thermal management system for electric vehicles


Zhao, G and Wang, X and Negnevitsky, M and Zhang, H and Li, C, Performance improvement of a novel trapezoid air-cooling battery thermal management system for electric vehicles, Sustainability, 14, (9) Article 4975. ISSN 2071-1050 (2022) [Refereed Article]

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Copyright: 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons 4.0 International (CC BY 4.0) license (

DOI: doi:10.3390/su14094975


An air-cooling battery thermal management system is a reliable and cost-effective system to control the operating temperatures of the electric vehicle battery pack within an ideal range. Different from most designs of the rectangular battery pack in previous research, this one proposed a novel isosceles trapezoid layout to improve system heat dissipations. The simulation results showed that the trapezoid design delivered better cooling performances than the rectangular one with a maximum temperature reduction of 0.9 C and maximum temperature difference reduction of 1.17 C at the inlet air flow rate of 60 L/s. Moreover, the cooling performance was further boosted by an aluminum heat spreader. The boosted design delivers an average Max T (32.95 C) and an average ΔT (3.10 C) at five different flow rates, which are 8.8% and 66.1% lower the one without the spreader (35.85 C and 5.15 C). Compared with the rectangular design without the spreader, the average Max T and ΔT of the boosted trapezoid design are reduced by 10.4% and 91.9% in addition to a space-saving of about 5.26%.

Item Details

Item Type:Refereed Article
Keywords:electric vehicle, air cooling, battery thermal management system, trapezoid battery cell layout, aluminum heat spreader
Research Division:Engineering
Research Group:Mechanical engineering
Research Field:Energy generation, conversion and storage (excl. chemical and electrical)
Objective Division:Energy
Objective Group:Energy storage, distribution and supply
Objective Field:Energy systems and analysis
UTAS Author:Zhao, G (Mr Gang Zhao)
UTAS Author:Wang, X (Professor Xiaolin Wang)
UTAS Author:Negnevitsky, M (Professor Michael Negnevitsky)
ID Code:149881
Year Published:2022
Funding Support:Australian Research Council (LP170100879)
Web of Science® Times Cited:3
Deposited By:Engineering
Deposited On:2022-04-21
Last Modified:2022-07-18
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