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首页> 外文期刊>International Journal of Heat and Mass Transfer >Thermal behavior study of discharging/charging cylindrical lithium-ion battery module cooled by channeled liquid flow
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Thermal behavior study of discharging/charging cylindrical lithium-ion battery module cooled by channeled liquid flow

机译：通道流冷却的圆柱型锂离子电池充放电热行为研究

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Highlights•A thermal model is established for EV battery’s thermal management system.•Thermal behaviors of a 18650 Li-ion battery module are carefully studied.•Results corroborate the effectiveness of the serpentine channel cooling system.•Possible better thermal management systems or strategies are discussed.AbstractWith respect to channeled liquid cooling thermal management system of electric vehicle battery pack, a thermal model is established for a battery module consisting of 71 18650-type lithium-ion batteries. In this model, thermal-lumped treatment is implemented for each single battery in the module and heat generation of a single battery is determined based on experimental measurements. In particular, heat conduction between neighboring batteries and heat transfer from the battery to the fluid channel outer wall are carefully modeled. We study, by the developed model, the battery module’s thermal behavior, and investigate the effects of discharge/charge C-rate, the liquid flow rate, the heat exchange area between neighboring batteries, and the interfacing area of the battery and the channel outer wall. The simulation results corroborate the effectiveness of the cooling system. It is found from simulation results that: (1) increasing the discharge/charge C-rate leads to higher temperature and worsens the temperature uniformity in the battery module; (2) increasing the liquid flow rate can significantly lower the temperature and improves the temperature uniformity in the battery module; (3) increasing the heat exchange area between neighboring batteries slightly improves the temperature uniformity in the battery module, but only has negligible effect on lowering the temperature of the module; (4) increasing the interfacing area of the battery and the channel outer wall can significantly lower the maximum temperature in the battery module but worsens the temperature uniformity in the module.
机译： 突出显示 • 已为电动汽车电池的热管理系统建立了一个热模型。 < ce：list-item id =“ o0010”> • 18650锂离子电池模块的热行为要小心 • 结果证实了蛇形通道冷却系统的有效性。 • 可能的更好的热管理系统或策略是 摘要 < ce：simple-para id =“ sp0010” view =“ all”>针对电动汽车电池组的通道式液体冷却热管理系统，建立了由71个18650型锂离子电池组成的电池模块的热模型。在此模型中，对模块中的每个单个电池执行集总处理，并根据实验测量确定单个电池的发热。特别是，仔细模拟了相邻电池之间的导热以及从电池到流体通道外壁的热传递。我们通过开发的模型研究电池模块的热行为，并研究放电/充电C速率，液体流速，相邻电池之间的热交换面积以及电池与通道外部的接口面积的影响。壁。仿真结果证实了冷却系统的有效性。从仿真结果中发现：（1）增加放电/充电C率会导致温度升高，并使电池模块的温度均匀性恶化； （2）提高液体流速可以显着降低温度并改善电池模块中的温度均匀性； （3）增加相邻电池之间的热交换面积稍微改善了电池模块中的温度均匀性，但是对降低模块温度的影响可忽略不计； （4）增加电池与通道外壁的接触面积会大大降低电池模块的最高温度，但会降低模块中的温度均匀性。

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  • 作者

    Chunrong Zhao; Wenjiong Cao; Ti Dong; Fangming Jiang;

  • 作者单位

    Laboratory of Advanced Energy Systems, Guangdong Key Laboratory of New and Renewable Energy Research and Development, CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS),University of Chinese Academy of Sciences;

    Laboratory of Advanced Energy Systems, Guangdong Key Laboratory of New and Renewable Energy Research and Development, CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS);

    Laboratory of Advanced Energy Systems, Guangdong Key Laboratory of New and Renewable Energy Research and Development, CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS),University of Chinese Academy of Sciences;

    Laboratory of Advanced Energy Systems, Guangdong Key Laboratory of New and Renewable Energy Research and Development, CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences (CAS);

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Lithium-ion battery thermal management; Thermal model; Channeled liquid cooling; Numerical simulation;

    机译：锂离子电池热管理;热模型;通道液体冷却;数值模拟;

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