Lithium-ion batteries are essential for modern devices, with their operation managed by a BMS system based on mathematical models. These often do not include open-circuit voltage hysteresis, reducing simulation accuracy. The aim of the thesis is to develop and parameterize a model with integrated OCV hysteresis, based on a Thevenin circuit. The model, implemented in Python, was optimized using differential evolution, with results showing up to 41.51% accuracy improvement for Samsung batteries and 19.32% for LG batteries.
|