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Design and Optimization of Leaf-Vein-Inspired Bionic Channels for Lithium-Ion Batteries
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Chongyang XU, Sen ZHAN, Li ZENG
Chinese Journal of Automotive Engineering | 2025, 15(1) : 11 - 21
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Chinese Journal of Automotive Engineering | 2025, 15(1): 11-21
• Green and Low-Carbon Technologies Section •
Design and Optimization of Leaf-Vein-Inspired Bionic Channels for Lithium-Ion Batteries
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Chongyang XU, Sen ZHAN, Li ZENG
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  • Chongqing Jiaotong University，Chongqing 400041，China
Published: 2025-01-20 doi: 10.3969/j.issn.2095‒1469.2025.01.02
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To enhance the thermal safety of lithium-ion battery packs, this paper proposes a liquid-cooled thermal management structure with bionic channels resembling leaf veins. The thermal performance of the model is analyzed and optimized using the fluid dynamics software STAR-CCM+. Using the polar-variance method in orthogonal testing, the effects of multi-parameter coupling, including the number of cooling plate channels N, the channel width W, and the inlet flow rate Q, on key factors such as the maximum battery temperature Tmax, the average temperature Tavg, the surface temperature difference ΔT, and the cooling hydraulic pressure drop Δp are investigated. The results show that N and Q are the primary factors affecting cooling performance, with W being a secondary factor. The optimal overall performance of the cooling plate is achieved at N=12, W=8 mm, and Q=25 g/s. After optimization, the leaf-vein-like cooling plate shows a 1.32% reduction in Tmax, a 0.64% reduction in Tavg, and an 88.2% reduction in Δp compared to the S-type channel cooling plate.

lithium-ion batteries  /  heat dissipation cooling plate structure  /  leaf-vein-type bionic channel  /  orthogonal experiment
Chongyang XU, Sen ZHAN, Li ZENG. Design and Optimization of Leaf-Vein-Inspired Bionic Channels for Lithium-Ion Batteries[J]. Chinese Journal of Automotive Engineering, 2025 , 15 (1) : 11 -21 . DOI: 10.3969/j.issn.2095‒1469.2025.01.02
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doi: 10.3969/j.issn.2095‒1469.2025.01.02
  • Receive Date：2024-01-16
  • Online Date：2025-07-20
  • Published：2025-01-20
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  • Received：2024-01-16
  • Revised：2024-02-20
Affiliations
    Chongqing Jiaotong University，Chongqing 400041，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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