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Evaluation of accuracy of simulation model and real electrochemical cell based on LiFePO4 chemistry

This paper gives a brief overview of the LiFePO4 cell technology and why it was selected as the focus of the presented research. Measurements of the charging and discharging processes of a LiFePO4-based electrochemical cell are described to explain how to extract components of the battery equivalent circuit. For the purposes of analyses, the NPB 60Ah cell was selected. After extraction and identification of equivalent scheme components, the simulation analysis has been performed. The results of the output characteristics of the simulation model have been compared with those received by measurements. The comparisons showed high accuracy of received results from simulation analyses.