The use of Li-ion battery in electric vehicles is becoming extensive in the modern-day world owing to their high energy density and longer life. But there is a concern of proper thermal management to have consistent performance. Therefore, proper cooling mechanism to have a good life and reliability on the battery system is necessary. The main objective of this analysis is to assess the maximum temperature that causes thermal runaway when the battery pack is cooled by several fluids. Five categories of coolants are passed over the heat-generating battery pack to extract the heat and keep the temperature in the limit. Different kinds of gases, conventional oils, thermal oils, nanofluids, and liquid metals are adopted as coolants in each category. This analysis is a novel study which considers different categories of coolant and conjugate heat transfer condition at the battery pack and coolant interface. In each group of coolant, five types of fluids are selected and analyzed to obtain the least maximum temperature of battery. The flow Reynolds number (Re), heat generation (Q_gen), and conductivity ratio (Cr) are other parameters considered for the analysis. The Nusselt number for air and water as coolant with increase in Re is studied separately at the end. The maximum temperature is found to increase with Q_gen and decrease for Re and Cr. Thermal oils, nanofluids, and liquid metals are found to provide maximum temperature in the same range of 0.62 to 0.54. At the same time, gases have nearly the same effect at different values of Re and Cr.

由于锂离子电池的高能量密度和更长的使用寿命，其在电动汽车中的使用在现代世界正变得越来越广泛。但是，人们需要适当的热管理以保持一致的性能。因此，需要适当的冷却机构以在电池系统上具有良好的寿命和可靠性。该分析的主要目的是评估当电池组被几种液体冷却时导致热失控的最高温度。五类冷却剂流经发热的电池组，以吸收热量并将温度保持在极限水平。在每种类别中，采用不同种类的气体，常规油，导热油，纳米流体和液态金属作为冷却剂。该分析是一项新颖的研究，考虑了电池组和冷却剂界面处的不同类型的冷却剂和共轭传热条件。在每组冷却液中，选择并分析五种类型的液体以获得最低的电池最高温度。流动雷诺数（Re），发热（Q _gen）和电导率比（Cr）是用于分析的其他参数。最后，分别研究了空气和水作为Re随Re增加的冷却剂的Nusselt数。发现最高温度随着Q _gen的增加而升高，而Re和Cr的降低。发现导热油，纳米流体和液态金属可提供的最高温度在0.62至0.54的相同范围内。同时，在不同的Re和Cr值下，气体具有几乎相同的效果。