Experimental data granularity studies for the development of NMC Li-ion battery models

This conference paper presents a comparative study of various models used to characterize the behavior of NMC Li-ion batteries. Specifically, this work focuses on analyzing data granularity and examining important features such as model accuracy and required computing resources. The paper presents the aforementioned study employing two different types of models: a physics-based model found in the literature and the well-known equivalent circuit model. Each of these models are formulated and calibrated using different techniques based on their typology. To conduct these studies, a real NMC811 lithium-ion battery with a 5Ah capacity is considered. A set of charging and discharging profiles were used to analyze and compare the results obtained from different models.