In this study, a novel cooling strategy based on setting spoilers in the airflow distribution plenum of a parallel air-cooling model was proposed to improve the cooling performance of a battery cooling system. In combination with the computational fluid dynamics (CFD) method, the effects of the number and position of spoilers on the thermal behaviors of a battery thermal management system (BTMS) were explored. The results demonstrated that the number and position of spoilers exhibited a substantial influence on the heat dissipation performance of the battery pack. In comparison with the original model, the maximum temperature and maximum temperature difference of the best case with spoilers were reduced by 1.86 K and 2.51 K, respectively. Additionally, the effects of the angle and height of the spoilers on the cooling performance of the battery pack were analyzed and optimized using the 5-spoiler model. The results revealed that the angle of the spoilers had a significant effect on the cooling performance. When the angle was 80°, the maximum temperature and maximum temperature difference were reduced by 2.11 K and 2.77 K, respectively. Moreover, appropriately adjusting the height of the spoilers could improve the cooling performance. Furthermore, the width of the cooling channel also had an effect on the cooling performance, which was discussed. A spoiler was added in the first cooling channel to further improve the cooling performance of the battery pack. The results demonstrated that the maximum temperature and maximum temperature difference were reduced by 3.39 K (6.66%) and 5.87 K (94.24%), respectively. Finally, the influences of the length and height of the manifolds were investigated. The simulation analysis results indicated that the proposed thermal management method could effectively improve the cooling performance of the air-cooling system.

在这项研究中，提出了一种基于在平行空气冷却模型的气流分布气室中设置扰流板的新型冷却策略，以提高电池冷却系统的冷却性能。结合计算流体动力学（CFD）方法，研究了扰流板的数量和位置对电池热管理系统（BTMS）的热行为的影响。结果表明，扰流板的数量和位置对电池组的散热性能有很大影响。与原始模型相比，带有扰流板的最佳情况的最高温度和最高温度差分别降低了1.86 K和2.51K。另外，使用5-扰流板模型分析和优化了扰流板的角度和高度对电池组冷却性能的影响。结果表明，扰流板的角度对冷却性能有重要影响。当角度为80°时，最高温度和最高温度差分别减小2.11 K和2.77K。而且，适当地调节扰流板的高度可以改善冷却性能。此外，冷却通道的宽度也对冷却性能有影响，已经讨论过。在第一冷却通道中增加了扰流板，以进一步提高电池组的冷却性能。结果表明，最高温度和最高温差分别降低了3.39 K（6.66％）和5.87 K（94.24％），分别。最后，研究了歧管的长度和高度的影响。仿真分析结果表明，所提出的热管理方法可以有效地改善空冷系统的冷却性能。