A Model-Based Approach for Temperature Estimation of a Lithium-ion Battery Pack

Temperature is an essential factor that substantially impacts lithium-ion batteries’ cycle lifetime, capacity, safety, and heat loss. The present investigation analyses the influence of the lithium-ion battery cell’s current rate on its temperature and thermal behaviour. The experiments were fulfilled at different discharge and charge cycles with different current rates. In this study, the thermal behaviour of a lithium-ion battery was analyzed at different current rates by employing a model-based approach from MATLAB. A correlation was seen between the current rate of the lithium-ion battery and the most remarkable temperature growth. The results would produce a more robust understanding of the temperature evolution of the lithium-ion battery cell for various applications. A smaller temperature was seen on the upper part of the lithium-ion battery pack.