Data-Driven Methods for the State of Charge Estimation of Lithium-Ion Batteries: An Overview

Panagiotis Eleftheriadis (), Spyridon Giazitzis, Sonia Leva and Emanuele Ogliari
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Panagiotis Eleftheriadis: Department of Energy, Politecnico di Milano, Via Lambruschini 4, 20156 Milano, Italy
Spyridon Giazitzis: Department of Energy, Politecnico di Milano, Via Lambruschini 4, 20156 Milano, Italy
Sonia Leva: Department of Energy, Politecnico di Milano, Via Lambruschini 4, 20156 Milano, Italy
Emanuele Ogliari: Department of Energy, Politecnico di Milano, Via Lambruschini 4, 20156 Milano, Italy

Forecasting, 2023, vol. 5, issue 3, 1-24

Abstract: In recent years, there has been a noticeable shift towards electric mobility and an increasing emphasis on integrating renewable energy sources. Consequently, batteries and their management have been prominent in this context. A vital aspect of the BMS revolves around accurately determining the battery pack’s SOC. Notably, the advent of advanced microcontrollers and the availability of extensive datasets have contributed to the growing popularity and practicality of data-driven methodologies. This study examines the developments in SOC estimation over the past half-decade, explicitly focusing on data-driven estimation techniques. It comprehensively assesses the performance of each algorithm, considering the type of battery and various operational conditions. Additionally, intricate details concerning the models’ hyperparameters, including the number of layers, type of optimiser, and neuron, are provided for thorough examination. Most of the models analysed in the paper demonstrate strong performance, with both the MAE and RMSE for the estimation of SOC hovering around 2% or even lower.

Keywords: lithium batteries; estimation; data-driven; machine learning; state of charge (search for similar items in EconPapers)
JEL-codes: A1 B4 C0 C1 C2 C3 C4 C5 C8 M0 Q2 Q3 Q4 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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