Thermal Analysis of LiFePO4 Battery Cell During Discharge with Constant Current

This article deals with the influence of constant current discharge of battery with focus on temperature analysis. For test purpose was selected 3.2V cell, which can be used for a wide range of applications as electric vehicles, photovoltaics and power storage. LiFePO₄ cell with a capacity of 40Ah at discharge currents of 20A, 40A, 60A, 80A, 120A together with surface temperature analysis was selected. This thermal analysis also contains infrared pictures using a thermal camera at determined discharge currents.