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http://dx.doi.org/10.14775/ksmpe.2021.20.12.054

Internal Structure Optimization to enhance the Thermal Performance of an Air-cooled Lithium-ion Battery Pack  

Li, Quanyi (Dept. of Mechanical Engineering, Korea Maritime & Ocean University)
Cho, Jong-Rae (Dept. of Mechanical Engineering, Korea Maritime & Ocean University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.20, no.12, 2021 , pp. 54-64 More about this Journal
Abstract
Electric vehicles use lithium-ion battery packs as the power supply, where the batteries are connected in series or parallel. The temperature control of each battery is essential to ensure a consistent overall temperature. This study focused on reducing ohmic heating caused by batteries to realize a uniform battery temperature. The battery spacing was optimized to improve air cooling, and the tilt angle between the batteries was varied to optimize the internal structure of the batterypack. Simulations were performed to evaluate the effects of these parameters, and the results showed that the optimal scheme effectively achieved a uniform battery temperature under a constant power discharge. These findings can contribute to future research on cooling methods for battery packs.
Keywords
Lithium-ion Battery; Battery Temperature; Internal Structure; Tilt Angle; Temperature Uniformity;
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