Numerical study and optimizing on cold plate splitter for lithium battery thermal management system

•Add splitters into the straight channel to improve the thermal equilibrium of battery module.•Use orthogonal experimental design method to research splitter structure parameters.•Study the heat balance performance of the battery liquid cooling management system.•Guide the design of battery thermal...

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Bibliographic Details
Published in:Applied thermal engineering 2020-02, Vol.167, p.114787, Article 114787
Main Authors: Xu, Xiaoming, Tong, Guangyao, Li, Renzheng
Format: Article
Language:English
Subjects:
Batteries
Computer simulation
Cooling systems
Design of experiments
Electric vehicles
Heat transfer
Liquid cooling
Lithium batteries
Numerical simulation
Orthogonal experimental design
Plates (structural members)
Power battery
Splitter
Straight channels
Temperature
Temperature gradients
Thermal management
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Summary:•Add splitters into the straight channel to improve the thermal equilibrium of battery module.•Use orthogonal experimental design method to research splitter structure parameters.•Study the heat balance performance of the battery liquid cooling management system.•Guide the design of battery thermal management. In recent years, with vigorous promotion of the new energy vehicle industry, electric vehicle, as an important direction, has aroused widely attention. As one of the core parts of electric vehicles, the performance of power battery is greatly affected by temperature. On the basis of the summaries of main methods and research of battery thermal management, this paper uses FloEFD 2016 to simulate and study the thermal equilibrium performance of battery liquid cooling system through adding splitters into the straight channel. In order to improve the thermal equilibrium of battery module, this paper also uses orthogonal experimental design method to research 5 splitter structure parameters: splitter number, length, angle, the distance between two splitters and the offset distance. The results show that as the number of splitters increases, the average temperature difference of each cell decreases and also the deflection angle and length of splitters have a great influence on the thermal equilibrium performance of the battery pack.
ISSN:1359-4311
1873-5606
DOI:10.1016/j.applthermaleng.2019.114787