A Thermal Investigation and Optimization of an Air-Cooled Lithium-Ion Battery Pack

Xiongbin Peng, Xujian Cui, Xiangping Liao and Akhil Garg
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Xiongbin Peng: Key Laboratory of Intelligent Manufacturing, Ministry of Education, Shantou University, Shantou 515063, China
Xujian Cui: Key Laboratory of Intelligent Manufacturing, Ministry of Education, Shantou University, Shantou 515063, China
Xiangping Liao: College of Mechanical Engineering, Hunan University of Humanities, Science and Technology, Loudi 417000, China
Akhil Garg: State Key Lab of Digital Manufacturing Equipment & Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Energies, 2020, vol. 13, issue 11, 1-20

Abstract: An effective battery thermal management system (BTMS) is essential to ensure that the battery pack operates within the normal temperature range, especially for multi-cell batteries. This paper studied the optimal configuration of an air-cooling (AC) system for a cylindrical battery pack. The thermal parameters of the single battery were measured experimentally. The heat dissipation performance of a single battery was analyzed and compared with the simulation results. The experimental and simulation results were in good agreement, which proves the validity of the computational fluid dynamics (CFD) model. Various schemes with different battery arrangements, different positions of the inlet and outlet of the cooling system and the number of inlets and outlets were compared. The results showed that an arrangement that uses a small length-width ratio is more conducive to promoting the performance of the cooling system. The inlet and outlet configuration of the cooling system, which facilitates fluid flow over most of the battery pack over shorter distances is more beneficial to battery thermal management. The configuration of a large number of inlets and outlets can facilitate more flexible adjustment of the fluid flow state and can slow down battery heating to a greater extent.

Keywords: thermal management system; optimal configuration; air-cooling; lithium-ion battery (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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