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A Ventilation Cooling Solution to Improve Thermal Environment of High Energy Density Li-Ion Battery Packs

[+] Author Affiliations
Zhiqiang Li, Xiaowei Fan, Fang Wang, Dasi He, Shifei Wei

Zhongyuan University of Technology, Zhengzhou, China

Paper No. IMECE2015-53373, pp. V08BT10A049; 6 pages
doi:10.1115/IMECE2015-53373
From:
  • ASME 2015 International Mechanical Engineering Congress and Exposition
  • Volume 8B: Heat Transfer and Thermal Engineering
  • Houston, Texas, USA, November 13–19, 2015
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5750-2
  • Copyright © 2015 by ASME

abstract

This paper focuses on the cooling solution to a high energy density and large capacity Li-ion battery system which consist of four packs of 26650 cells. The cooling measure is a critical technology for many Li-ion battery systems especially that designed for hybrid electric vehicles, in which, high energy density within a limited space is very common in these systems. Both the safety and efficiency of Li-ion battery cells rely on the temperature which is under control of the battery thermal management system. In this study, temperature fields within battery boxes are simulated with the computational fluid dynamic (CFD) method. With the help of an airconditioner, a cooling solution is proposed for a relatively large dimensional, high energy density Li-ion battery cells array using by vehicles. Through the proposed solution, the maximum single-cell temperature is restricted to a reasonable level, and the maximum temperature difference throughout the battery system is also improved.

Copyright © 2015 by ASME

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