The accurate identification of Li-ion battery models is important to ensure efficient and safe operating conditions. In this work, we propose two generalized fractional-order models to characterize two coin-shaped Li-ion batteries. A Staircase Potentio-Electrochemical Impedance Spectroscopy (SPEIS) test is used to perform characterization at different open-circuit voltages while charging and discharging the batteries. Parameter identification of the proposed models on the measured data is performed with Marine Predator Algorithm (MPA) showing excellent matching. © 2021 IEEE.
Abdelhafiz S.M., Abdelaty A.M., Fouda M.E., Radwan A.G.
Battery Modeling; Characterization; Li-ion Battery; parameter identification
Midwest Symposium on Circuits and Systems, Vol. 2021-August, PP. 208 to 211, Doi: 10.1109/MWSCAS47672.2021.9531810