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Thermal management performance of a fin‐enhanced phase change material system for the lithium‐ion battery
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2020-05-07 , DOI: 10.1002/er.5494 Nianben Zheng 1 , Ruijin Fan 1 , Zhiqiang Sun 1 , Tian Zhou 1
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2020-05-07 , DOI: 10.1002/er.5494 Nianben Zheng 1 , Ruijin Fan 1 , Zhiqiang Sun 1 , Tian Zhou 1
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A fin‐enhanced phase change material (PCM) system was introduced for cylindrical lithium‐ion batteries. Experiments were performed to explore the performance of the systems during discharging. The working time of the PCM‐Fin system is improved by 75%, 68%, and 61% compared to that of the system without fins under the heat production rate of 10, 12.5, and 15 W, accordingly. Simulations were performed by ANSYS Fluent to explore the influence of the geometric parameters (thickness, length, and number) and materials (nylon, titanium, steel, Al alloy, and copper) of the fins on the thermal performance. A function considering both the improvement in thermal performance and the increase in system weight was defined to assess the overall performance. Results indicate that fins made of Al alloy with the number of 8, a length of 7.5 mm, and a thickness of 0.5 mm give the best performance. Besides, the working time of the PCM‐Fin system is 2150, 2490, 2940, and 3570 seconds for the coefficient of heat transfer of 5, 10, 15, and 20 W m−2 K−1, respectively, which is increased by 14%, 32%, 56%, and 90%, compared to that of the adiabatic condition, demonstrating the effectiveness of the PCM‐Fin system.
中文翻译：
锂离子电池翅片增强相变材料系统的热管理性能
为圆柱型锂离子电池引入了翅片状相变材料（PCM）系统。进行了实验以探索放电期间系统的性能。相对于在10、12.5和15 W的产热量下不带翅片的系统，PCM-Fin系统的工作时间分别缩短了75％，68％和61％。ANSYS Fluent进行了仿真，以探索散热片的几何参数（厚度，长度和数量）和材料（尼龙，钛，钢，铝合金和铜）对热性能的影响。定义了同时考虑热性能改善和系统重量增加的功能，以评估整体性能。结果表明，由铝合金制成的鳍片的数量为8，长度为7.5 mm，厚度为0。5毫米可提供最佳性能。此外，对于5、10、15和20 W m的传热系数，PCM-Fin系统的工作时间为2150、2490、2940和3570秒。−2 K -1，与绝热条件相比分别增加了14％，32％，56％和90％，证明了PCM-Fin系统的有效性。
更新日期：2020-05-07
中文翻译：
锂离子电池翅片增强相变材料系统的热管理性能
为圆柱型锂离子电池引入了翅片状相变材料（PCM）系统。进行了实验以探索放电期间系统的性能。相对于在10、12.5和15 W的产热量下不带翅片的系统，PCM-Fin系统的工作时间分别缩短了75％，68％和61％。ANSYS Fluent进行了仿真，以探索散热片的几何参数（厚度，长度和数量）和材料（尼龙，钛，钢，铝合金和铜）对热性能的影响。定义了同时考虑热性能改善和系统重量增加的功能，以评估整体性能。结果表明，由铝合金制成的鳍片的数量为8，长度为7.5 mm，厚度为0。5毫米可提供最佳性能。此外，对于5、10、15和20 W m的传热系数，PCM-Fin系统的工作时间为2150、2490、2940和3570秒。−2 K -1，与绝热条件相比分别增加了14％，32％，56％和90％，证明了PCM-Fin系统的有效性。
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