Thermal performance of direct two-phase refrigerant cooling for lithium-ion batteries in electric vehicles
By Seong-ho Hong, D. Jang, Seonggi Park, Sungho Yun, Yongchan Kim. Applied Thermal Engineering, 2020
183 citations recorded by the source corpus.
Abstract The lithium-ion battery has been considered as a power source of electric vehicles (EVs). An efficient battery thermal management system is essential for lithium-ion batteries with high cooling performance and long lifetime. The objective of this study is to investigate the performance improvement of a novel direct two-phase refrigerant cooling over a conventional liquid cooling for traction batteries of EVs. Based on full-scale experiments under actual vehicle conditions, the thermal performance of the two-phase refrigerant cooling is compared with that of the conventional liquid cooling with the same outer size. The two-phase refrigerant cooling satisfies the maximum cell temperature limit of 45 °C even under harsh environmental conditions. During aging, the two-phase refrigerant cooling provides 16.1% higher battery capacity and 15.0% lower internal resistance compared with the liquid cooling under harsh environmental conditions. Overall, the two-phase refrigerant cooling is considered a preferred alternative to the conventional liquid cooling owing to its reliable performance even with a simple and lightweight structure.
Subfields: Automotive Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/9d532180009abbeb96ca7a95658dd703893d6109
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In Automotive Engineering
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Citations in the corpus
- A review on thermal management of lithium-ion batteries for electric vehicles (2022, background): “Many scholars have carried out numerical simulation for the cooling method of PCM to improve its cooling uniformity[94-96].”