Development and analysis of techniques to improve air-cooling and temperature uniformity in battery packs
Date
2017-08-01
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Abstract
One of the challenges to the advancement of electric vehicles is the requirement of an effective
thermal management system to maintain the temperature, and temperature uniformity of the
battery pack and the cell within the operating limits. In this study, a novel concept has been
developed to improve air-cooling and temperature uniformity in a simple battery pack by
incorporating inlet plenum, jet inlets, and vortex generators. The proposed battery pack concept
reduced the maximum temperature by about 6%. Furthermore, the temperature difference
between the maximum temperature and the minimum temperature exhibited by the battery pack
was reduced by 24%. Additionally, up to 37% improvement in the temperature uniformity
within a single cell was achieved. Moreover, the new concept developed in this study achieved
the desired temperature uniformity at the cell level and the pack level to within 5 ÂșC.
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Keywords
Battery thermal management, Forced air passive cooling, Computational fluid dynamics