A Coolant Circulation Cooling System Combining Aluminum Plates and Copper Rods for Li-Ion Battery Pack

Chuanwei Zhang, Zhan Xia, Huaibin Gao, Jianping Wen, Shangrui Chen, Meng Dang, Sujing Gu and Jianing Zhang
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Chuanwei Zhang: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Zhan Xia: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Huaibin Gao: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Jianping Wen: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Shangrui Chen: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Meng Dang: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Sujing Gu: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Jianing Zhang: College of Mechanical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China

Energies, 2020, vol. 13, issue 17, 1-14

Abstract: The spontaneous combustion of electric vehicles occurs frequently, and the main reason is the thermal runaway of a lithium-ion battery. In order to prevent the heat that is produced in the use of a lithium-ion battery out of control, this study proposed a coolant circulation cooling system, that is, the heat generated by the lithium-ion battery is transferred to heat sinks through aluminum plates and copper rods, and then dissipated through the coolant. Based on a CALB-LB5F73 LiFePO 4 battery pack, experiments with the coolant circulation cooling system were conducted to study the temperature rise characteristics at different ambient temperatures. The temperature of the battery pack was still close to the upper limit of permitted temperature when the ambient temperature reached 313 K. Further improvement, increasing the diameter of copper rod of the system was proposed to enhance heat dissipation and simulations with this scheme were completed. The findings show that the cooling system can clearly reduce the temperature of a lithium-ion battery pack and control the temperature within the safe temperature range.

Keywords: Lithium-ion battery; coolant; cooling system; permitted temperature (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
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