Numerical Investigation on the Thermal Performance of a Battery Pack by Adding Ribs in Cooling Channels

Jiadian Wang, Dongyang Lv, Haonan Sha, Chenguang Lai, Junxiong Zeng (), Tieyu Gao (), Hao Yang, Hang Wu and Yanjun Jiang
Additional contact information
Jiadian Wang: School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Dongyang Lv: Department of the First Research, Nuclear Power Institute of China, Chengdu 510100, China
Haonan Sha: The 703 Research Institute of China Shipbuilding Industry Corporation, Harbin 150010, China
Chenguang Lai: Vehicle Engineering Institute, Chongqing University of Technology, Chongqing 400054, China
Junxiong Zeng: Vehicle Engineering Institute, Chongqing University of Technology, Chongqing 400054, China
Tieyu Gao: School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Hao Yang: Vehicle Engineering Institute, Chongqing University of Technology, Chongqing 400054, China
Hang Wu: Chongqing Tsingshan Industria Co., Ltd., Chongqing 402761, China
Yanjun Jiang: Chongqing Tsingshan Industria Co., Ltd., Chongqing 402761, China

Energies, 2024, vol. 17, issue 17, 1-24

Abstract: The thermal performance of a lithium-ion battery pack for an electric vehicle by adding straight rib turbulators in battery cooling plate channels has been numerically investigated in this paper and the numerical model of the battery pack has been validated by experimental data, which exhibits a satisfactory prediction accuracy. The effects of rib shapes, rib angles, rib spacings, and irregular gradient rib arrangement configurations on the flow and heat transfer behaviors of battery pack cooling plates have been thoroughly explored and analyzed in this paper. In addition, the thermal performance of the ribbed battery cooling plates was examined at actual high-speed climbing and low-temperature heating operating conditions. The results indicate that compared to the original smooth cooling plate, the square-ribbed battery cooling plate with a 60° angle and 5 mm spacing reduced the maximum battery temperature by 0.3 °C, but increased the cross-sectional temperature difference by 0.357 °C. To address this issue, a gradient rib arrangement was proposed, which slightly reduced the maximum battery temperature and lowered the cross-sectional temperature difference by 0.445 °C, significantly improving temperature uniformity. The thermal performance of the battery thermal management system with this gradient rib configuration meets the requirements for typical electric vehicle operating conditions, such as high-speed climbing and low-temperature heating conditions.

Keywords: electric vehicles; power batteries; battery thermal management; straight rib arrangement; heat transfer capability (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: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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