Electro thermal Model of Lithium Battery Under Parametric Uncertainty

Lithium-ion batteries are widely deployed in electric vehicles, renewable energy storage systems, aerospace platforms, and portable electronics because of their high energy density, long cycle life, and fast charging capability. However, battery performance and safety are strongly influenced by electrochemical and thermal interactions occurring inside the cell. Variations in material properties, operating conditions, and aging mechanisms introduce uncertainty into battery behavior, making accurate modeling a significant challenge. An electro-thermal model integrates electrical and thermal dynamics to describe battery voltage, current, temperature evolution, heat generation, and degradation mechanisms simultaneously. Under real-world operating conditions, several model parameters exhibit uncertainty due to manufacturing inconsistencies, environmental fluctuations, sensor inaccuracies, and aging effects. Therefore, incorporating parametric uncertainty into electro-thermal battery models is essential for robust battery management system (BMS) design, safety analysis, state estimation, and predictive control. Chin CS, Gao ZC, Zhang CZ. Comprehensive Electro-Thermal Model of 26650 Lithium Battery for Discharge Cycle under Parametric and Temperature Variations. Journal of Energy Storage 2020, 28, 101222. https://www.sciencedirect.com/science/arti...