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Air Cooling Concepts for Li-Ion Battery Pack in Cell Level

[+] Author Affiliations
Kuo-Huey Chen, Taeyoung Han, Bahram Khalighi

GM Global R&D Center, Warren, MI

Philip Klaus

GM Europe, Ruesselsheim, Germany

Paper No. HT2017-4701, pp. V001T09A001; 12 pages
doi:10.1115/HT2017-4701
From:
  • ASME 2017 Heat Transfer Summer Conference
  • Volume 1: Aerospace Heat Transfer; Computational Heat Transfer; Education; Environmental Heat Transfer; Fire and Combustion Systems; Gas Turbine Heat Transfer; Heat Transfer in Electronic Equipment; Heat Transfer in Energy Systems
  • Bellevue, Washington, USA, July 9–12, 2017
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-5788-5
  • Copyright © 2017 by ASME

abstract

Computational Fluid Dynamics (CFD) modeling is used to study different cooling architectures for the next generation (Gen-2) EREV Li-Ion battery package. There might be advantages of air cooled batteries with respect to complexity, cost and reliability compared to liquid cooled systems like the EREV (Extended Range Electric Vehicle) GEN1 battery. Therefore, the feasibility of air cooling architectures is investigated first and later liquid cooling strategies. In this study, the thermal performance and pressure drop of the cell level for two of the core product designs are reported. The parameters considered in this study include two different heat generations (heat sources) by the battery pack and three cooling flow rates. The heat generations used are 500 W and 1500 W representing the normal driving and peak load conditions, respectively. The cooling flow rates are 100, 200 and 600 m3/h. The battery cell temperatures, both in terms of absolute value and the variation within the cell, and the pressure drop which is related to the required pumping power, are evaluated and presented.

Copyright © 2017 by ASME

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