Abstract The increase of greenhouse gas emissions and environmental pollution leading to global warming have made it necessary for measures to be taken to increase the production and usage of electric vehicles. Instead of fossil fuels, these vehicles, which are powered by electricity from sustainable sources, promise hope for global warming through zero emissions. Batteries for electric aircraft are in important position. In these vehicles, the primary energy source or primary auxiliary energy source is high-density batteries. Temperature is one of the most important factors impressive battery performance as it shortens battery life. Lithium ion batteries are the preferred battery in this study because they have a high specific energy and energy density. This study examined the performance of the heat generated by 10 prismatic batteries. These batteries were connected to each other in series. The cathode of the batteries is LiMn2O4. A three-dimensional thermal analysis was performed under natural and forced transport conditions. The temperature of the batteries rises in the middle of the battery module and an uneven temperature distribution was observed under natural convection. Because of the heat transfer from each battery’s surface, both a decrease in temperature was observed and a balanced temperature distribution happened under forced convections. As the C ratio decreased, the temperature of the batteries decreased, but this process requires a longer time. For this reason, C values should be selected according to the battery capacity and working environment.

中文翻译：

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混合动力电动飞机方形锂离子电池热性能数值研究

摘要 温室气体排放的增加和环境污染导致全球变暖，使得必须采取措施增加电动汽车的生产和使用。这些由可持续来源电力驱动的汽车取代了化石燃料，有望通过零排放实现全球变暖。电动飞机电池处于重要地位。在这些车辆中，主要能源或主要辅助能源是高密度电池。温度是影响电池性能的最重要因素之一，因为它会缩短电池寿命。锂离子电池是本研究中的首选电池，因为它们具有较高的比能量和能量密度。这项研究检查了 10 个棱柱形电池产生的热量的性能。这些电池彼此串联连接。电池的阴极是 LiMn2O4。在自然和强制运输条件下进行了三维热分析。电池模块中部温度升高，在自然对流下观察到温度分布不均匀。由于每个电池表面的热传递，在强制对流下观察到温度下降和平衡的温度分布。随着 C 比降低，电池的温度降低，但这个过程需要更长的时间。为此，应根据电池容量和工作环境选择 C ​​值。在自然和强制运输条件下进行了三维热分析。电池模块中部温度升高，在自然对流下观察到温度分布不均匀。由于每个电池表面的热传递，在强制对流下观察到温度下降和平衡的温度分布。随着 C 比降低，电池的温度降低，但这个过程需要更长的时间。为此，应根据电池容量和工作环境选择 C ​​值。在自然和强制运输条件下进行了三维热分析。电池模块中部温度升高，在自然对流下观察到温度分布不均匀。由于每个电池表面的热传递，在强制对流下观察到温度下降和平衡的温度分布。随着 C 比降低，电池的温度降低，但这个过程需要更长的时间。为此，应根据电池容量和工作环境选择 C ​​值。由于每个电池表面的热传递，在强制对流下观察到温度下降和平衡的温度分布。随着 C 比降低，电池的温度降低，但这个过程需要更长的时间。为此，应根据电池容量和工作环境选择 C ​​值。由于每个电池表面的热传递，在强制对流下观察到温度下降和平衡的温度分布。随着 C 比降低，电池的温度降低，但这个过程需要更长的时间。为此，应根据电池容量和工作环境选择 C ​​值。