Research on liquid-cooling structure for lithium-ion battery with bionic leaf-vein liquid channels

IF 2.6 3区工程技术 Q2 ENGINEERING, MECHANICAL International Journal of Heat and Fluid Flow Pub Date : 2025-01-09 DOI:10.1016/j.ijheatfluidflow.2025.109743

Runze Yan , Qinghai Zhao , Chao Zhang , Qingheng Tang , Honghui Li

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Abstract

Effective thermal management is crucial for the thermal safety and temperature uniformity of Lithium-ion batteries. Taking inspiration from the natural leaf-vein structure, this paper proposes a cold plate with novel internal bionic leaf-vein liquid channels. Three-dimensional cold plate models are established according to the contour of leaf-vein for multi-physical field numerical simulations. The effects of different flow rates and inlet/outlet arrangements on the heat transfer performance are investigated. The velocity, temperature, and pressure fields are calculated with the finite element method. Compared with the conventional rectangular flow channel, the results demonstrate that the maximum temperature of the cooling plate with the bionic-type structure is reduced by 10.17 K and the heat transfer efficiency is increased by 22.43 %. Finally, the properties of the test samples are compared to verify the numerical results. The proposed bionic leaf-vein cooling channels provide a positive direction for designing lithium-ion battery cooling systems to control the temperature distribution of the cell module.

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具有仿生叶脉通道的锂离子电池液冷结构研究

有效的热管理对锂离子电池的热安全性和温度均匀性至关重要。本文从自然叶脉结构中汲取灵感，提出了一种具有新型仿生叶脉内部液体通道的冷板。根据叶脉轮廓建立三维冷板模型，进行多物理场数值模拟。研究了不同流量和进出口布置对换热性能的影响。用有限元法计算了速度场、温度场和压力场。结果表明，与传统矩形流道相比，仿生结构冷却板的最高温度降低了10.17 K，换热效率提高了22.43%。最后，对试验样品的性能进行了比较，验证了数值结果。所提出的仿生叶脉冷却通道为设计锂离子电池冷却系统以控制电池模块的温度分布提供了积极的方向。

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来源期刊

International Journal of Heat and Fluid Flow 工程技术-工程：机械

CiteScore

5.00

自引率

7.70%

发文量

131

审稿时长

33 days

期刊介绍： The International Journal of Heat and Fluid Flow welcomes high-quality original contributions on experimental, computational, and physical aspects of convective heat transfer and fluid dynamics relevant to engineering or the environment, including multiphase and microscale flows. Papers reporting the application of these disciplines to design and development, with emphasis on new technological fields, are also welcomed. Some of these new fields include microscale electronic and mechanical systems; medical and biological systems; and thermal and flow control in both the internal and external environment.