Improvement in Efficiency of Battery of Electric Vehicle by Analyzing the Heat Transfer Enhancement of Lithium Ion Battery Pack (original) (raw)

Electric vehicles are being developed to address the looming energy crisis and air pollution concerns. Because of its high power density and current efficiency, cylindrical lithium-ion batteries are widely employed. Internal temperature and temperature fluctuations between individual batteries have a significant impact on battery performance. The temperature of the battery changes during operation due to internal heat generation caused by electrochemical processes and the Joule effect. This selfsustaining process can result in an unregulated temperature increase, which can eventually lead to a deadly thermal runaway if heat is not removed as it is generated. We can either enhance the heat transfer coefficient or increase the surface area to increase the heat transfer rate. The heat transmission coefficient of a certain medium, on the other hand, is constant. As a result, increasing the surface area by adding fins can improve the heat transfer coefficient.