An Electro-Thermal Model for LFP Cells: Calibration Procedure and Validation

Michele Barbieri, Massimo Ceraolo, Giovanni Lutzemberger and Claudio Scarpelli
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Michele Barbieri: Department of Energy, Systems, Territory and Constructions, University of Pisa, 56126 Pisa, Italy
Massimo Ceraolo: Department of Energy, Systems, Territory and Constructions, University of Pisa, 56126 Pisa, Italy
Giovanni Lutzemberger: Department of Energy, Systems, Territory and Constructions, University of Pisa, 56126 Pisa, Italy
Claudio Scarpelli: Department of Energy, Systems, Territory and Constructions, University of Pisa, 56126 Pisa, Italy

Energies, 2022, vol. 15, issue 7, 1-14

Abstract: Lithium batteries for energy storage systems are a prominent solution for both stationary and mobile applications. Electro-thermal modelling of the cell is a useful tool for monitoring voltage and temperature in order to predict battery behaviour especially in cases of critical operative conditions. This paper provides a modelling approach focusing on the calibration of parameters of an electro-thermal model for large prismatic LFP lithium cells. The designed model is tuned by means of experimental tests that identify a set of parameters that are function of a cell’s state-of-charge and temperature. The model outputs are voltage, cell surface, and internal temperature profiles, which are validated against experimental data referring to realistic working conditions, even providing an intense level of thermal stress. The model accuracy is marked by a voltage mean average error lower than 1% and a mean cell surface temperature deviation lower than 1 K.

Keywords: lithium; battery; model; experimental; test (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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