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    吴尚犬

    • 特任教授 博士生导师 硕士生导师
    • 教师拼音名称:Wu Shangquan
    • 电子邮箱:
    • 学历:研究生(博士)毕业
    • 学位:博士
    • 毕业院校:中国科学技术大学
    • 学科:固体力学
    • 2022当选:国家优秀青年基金获得者

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    Effect analysis on integration efficiency and safety performance of a battery thermal management system based on direct contact liquid cooling

    点击次数:

    影响因子:5.3

    DOI码:10.1016/j.applthermaleng.2021.117788

    发表刊物:Applied Thermal Engineering

    关键字:direct contact liquid cooling power battery thermal runaway high safety high integration efficiency lithium-ion battery heat-pipe

    摘要:We design and fabricate a novel lithium-ion battery system based on direct contact liquid cooling to fulfill the application requirement for the high-safety and long-range of electric vehicles. By the immersion in the flowing silicone oil to achieve the highly efficient heat exchange, the NCM811 cells can be grouped without gap, and thereby the battery system achieves maximum volume efficiency. The mass and volume integration ratio of the battery system are 91% and 72%, respectively, which are 1.1 and 1.5 times that of the tube-based indirect liquid contact cooling system, respectively. Specifically, the temperature increment of the cells during 1C discharge does not exceed 13 degrees C, and the dynamic temperature difference is less than 8.8 degrees C. The results from simulation show that the maximum temperature rise and maximum temperature difference of the direct contact liquid cooling system are only 20%-30% of the indirect contact liquid cooling system. Particularly, the system can effectively prevent the thermal runaway propagation without any additional measures, owing to the high heat dissipation rate and oxygen isolation. The research has led to the successful construction of an oil-immersed battery system with high integration ratio and excellent safety, which provides a feasible solution for the demand of the high safety and high specific energy of the electric vehicle battery system.

    合写作者:Chunjing Lin,Lei Liu,Lin Wu,Li Lao

    第一作者:Shangquan Wu

    论文类型:期刊论文

    通讯作者:Qingchuan Zhang

    卷号:201

    页面范围:117788

    是否译文:

    发表时间:2021-11-10

    收录刊物:SCI