Structural design of a composite board/heat pipe based on the coupled electro-chemical-thermal model in battery thermal management system

Xianrong Jin, Xiting Duan, Wenjuan Jiang, Yan Wang, Youlan Zou, Weixin Lei, Lizhong Sun and Zengsheng Ma

Energy, 2021, vol. 216, issue C

Abstract: Based on the electrochemical-thermal coupled model, we build a coupled three-dimensional battery thermal management system (BTMS) which combines the composite board and the heat pipes. This model is applied to assess the heat performances of different structural BTMS with boards and pipes. The results show that the system with the heat pipes and composite board is more effective in improving heat performances than that with a single composite board. Furthermore, the BTMS with a combination of vertical and horizontal pipes achieves a higher comprehensive cooling efficiency than that with the single pipes. The optimal arrays exhibit a significant improvement of the comprehensive performances of the traditional composite board thermal management system, where Tmax and ΔT reach 296.85 K and 3.29 K after a full charging/discharging cycle under a 3C rate, respectively. Besides, the contact area between the battery and pack shell plays a vital role in the cooling performances. At the same time, the improved BTMS based on horizontal pipes achieves the highest cooling efficiency, with Tmax = 294.37 K and ΔT = 1.08 K.

Keywords: Li-ion battery; Thermal management system; Electrochemical-thermal coupled model; Composite board; Heat pipes (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:216:y:2021:i:c:s0360544220323410

DOI: 10.1016/j.energy.2020.119234

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