Comparison of different cooling methods for lithium ion battery cells
Comparison of different cooling methods for lithium ion battery cells
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DOI：
10.1016/j.applthermaleng.2015.10.015
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发表时间：
2016-02-05
影响因子：
6.4
通讯作者：
Pesaran, Ahmad
中科院分区：
文献类型：
--
作者：
Chen, Dafen;Jiang, Jiuchun;Pesaran, Ahmad
为电动驱动车辆（EDV）选择一种适当的冷却方法（Li-ion）电池组，并制定最佳的冷却控制策略，以使温度达到15度至35度C的最佳范围对于提高安全性，延长包装使用寿命并降低成本至关重要。在选择冷却方法和制定策略时，需要在许多方面进行权衡，例如成本，复杂性，重量，冷却效果，温度均匀性和寄生能力。本文考虑了四种细胞冷却方法：空气冷却，直接液体冷却，间接液体冷却和鳍冷却。为了评估其有效性，使用典型的大容量锂离子袋细胞来评估这些方法，从冷却液寄生源消耗，最大温度升高，电池中的最高温度差异以及用于冷却系统的额外重量的角度来评估这些方法。我们使用最先进的锂离子电池电化学热模型。结果表明，在我们的假设下，空气冷却系统需要比其他方法多2到3个能量才能保持相同的平均温度。间接液体冷却系统的最高温度升高。而鳍冷却系统则增加了大约40％的单元重量，当四种冷却方法具有相同的体积时，重量最大。间接液体冷却是一种比直接液体冷却更实用的形式，尽管它的冷却性能略低。 （c）2015 Elsevier Ltd.保留所有权利。
Choosing a proper cooling method for a lithium-ion (Li-ion) battery pack for electric drive vehicles (EDVs) and making an optimal cooling control strategy to keep the temperature at a optimal range of 15 degrees C to 35 degrees C is essential to increasing safety, extending the pack service life, and reducing costs. When choosing a cooling method and developing strategies, trade-offs need to be made among many facets such as costs, complexity, weight, cooling effects, temperature uniformity, and parasitic power. This paper considers four cell-cooling methods: air cooling, direct liquid cooling, indirect liquid cooling, and fin cooling. To evaluate their effectiveness, these methods are assessed using a typical large capacity Li-ion pouch cell designed for EDVs from the perspective of coolant parasitic power consumption, maximum temperature rise, temperature difference in a cell, and additional weight used for the cooling system. We use a state-of-the-art Li-ion battery electro-chemical thermal model. The results show that under our assumption an air-cooling system needs 2 to 3 more energy than other methods to keep the same average temperature; an indirect liquid cooling system has the lowest maximum temperature rise; and a fin cooling system adds about 40% extra weight of cell, which weighs most, when the four kinds cooling methods have the same volume. Indirect liquid cooling is a more practical form than direct liquid cooling though it has slightly lower cooling performance. (C) 2015 Elsevier Ltd. All rights reserved.