To address the issue of excessive temperature in battery cells caused by uneven heat dissipation of liquid cooling plates, computational fluid dynamics (CFD) methods are employed to optimize the structure of the liquid cooling plate’s flow channels, the arrangement of the find within the channels, and the liquid cooling strategies to enhance the heat dissipation performance of the liquid cooling plate and improve temperature uniformity of the battery cells. The flow channel of the liquid cooling plate is transformed from an initial single inlet and outlet structure to a dual inlet and outlet dual-channel structure by increasing the number of inlets and outlets and changing their positions. Turbulence fins are added within the channels to enhance cooling performance. Using orthogonal simulation methods, the lateral distance (a), longitudinal distance (b), and height (h) of circular fins in the channel are studied for their impact on the maximum and average temperature of the battery cells, thereby determining the optimal arrangement of the fins. To achieve the same cooling effect as a constant flow liquid cooling strategy while reducing the energy consumption of the liquid cooling plate, a variable flow liquid cooling strategy implemented to achieve pressure drop in the channels. Results indicate that compared with the initial structure, the dual inlet liquid cooling plate reduces the maximum temperature of the liquid cooling plate by 0.72 ℃; the height of the fins has the greatest impact on the heat dissipation of the liquid cooling plate; the optimal parameter combination for orthogonal arrangement is a4b3h3, under which the maximum and average temperatures of the battery cells decrease by 0.33 ℃ and 0.40 ℃, respectively, compared to when no fins are arranged; the variable flow liquid cooling strategy leads to pressure drops in the channels during the second and third discharge phases, reduced by 34.79% and 13.19%, respectively.
YEYonghuang, SAWL H, SHIYixiang, et al. Numerical analyses on optimizing a heat pipe thermal management system for lithium-ion batteries during fast charging[J]. Applied Thermal Engineering, 2015, 86: 281-291.
[4]
LIKe, YANJiajia, CHENHaodong, et al. Water cooling based strategy for lithium ion battery pack dynamic cycling for thermal management system[J]. Applied Thermal Engineering, 2018, 132: 575-585.
DONGJunhao, LUXipo, SUNYang, et al. Design of battery thermal management system with considering the longitudinal and transverse temperature difference[J]. Energies, 2022, 15(19): 7448.DOI: 10.3390/en15197448 .
FUJia, XUXiaoming, LIRenzheng. Battery module thermal management based on liquid cold plate with heat transfer enhanced fin[J]. International Journal of Energy Research, 2019, 43(9): 4312-4321.
XIAXiaojun, CHENLibo, HUANGYi, et al. Research on combined thermal management system of power battery and air conditioning based on MPC[J]. World Electric Vehicle Journal, 2025, 16(8): 452.DOI: 10.3390/wevj16080452 .
[13]
NAM K, AHN C. Energy-efficient battery thermal management in electric vehicles using artificial-neural-network-based model predictive control[J]. World Electric Vehicle Journal, 2025, 16(5): 279.DOI: 10.3390/wevj16050279 .
[14]
ZHANGNingjia, WANGZhaohui, ZHANGBowen, et al. Performance investigation of battery thermal management system based on L-shaped heat pipe coupled cold plate and optimization of controllable liquid cooling[J]. Engineering Applications of Computational Fluid Mechanics, 2024, 18(1): 2370941.DOI: 10.1080/19942060.2024.2370941 .
SRINIVAASS, LIWei, GARGA, et al. Battery thermal management system design: role of influence of nanofluids, flow directions, and channels[J]. Journal of Electrochemical Energy Conversion and Storage,2020,17(2):021110.DOI: 10.1115/1.4045325 .
[17]
LIAOJiadong, LITai, ZHANGZhiya, et al. Effect of rib width on water and heat transfer in the gas diffusion layer[J].Journal of Physics: Conference Series, 2025, 3084: 012046.DOI: 10.1088/1742-6596/3084/1/012046 .
[18]
ALBANAM H, BATUBARAN H, NOVEBRIANTIKAN, et al. Investigation of flow channel configurations in liquid-cooled plates for electric vehicle battery thermal management[J]. World Electric Vehicle Journal, 2025, 16(9): 536.DOI: 10.3390/wevj16090536 .
[19]
GUORong, LILu. Heat dissipation analysis and optimization of lithium-ion batteries with a novel parallel-spiral serpentine channel liquid cooling plate[J]. International Journal of Heat and Mass Transfer, 2022, 189: 122706.DOI: 10.1016/j.ijheatmasstransfer. 2022.122706 .
[20]
LINingkang, SCHLOTTIGG, DEFAZIOM, et al. Hybrid porous media and fluid domain modeling strategy to optimize a novel staggered fin heat sink design[C]//19th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC). Piscataway, NJ, USA:IEEE, 2013: 224-230.
YANGZhigang, YINZiqiang, WANGDonghe, et al. Effects of ternary sintering aids and sintering parameters on properties of alumina ceramics based on orthogonal test method[J]. Materials Chemistry and Physics,2020,241:122453.DOI:10.1016/j.matchemphys.2019.122453 .