A model for SEI growth based on non-equilibrium thermodynamics
Published in Electrochimica Acta, 2026
Growth of the solid electrolyte interphase (SEI) is a dominant degradation mechanism in lithium-ion batteries, governing capacity fade, coulombic efficiency and long-term performance. This paper presents a continuum model for SEI growth based on bulk-surface non-equilibrium thermodynamics, treating reaction kinetics, interface conditions, the moving interface and the chemical potential functions of the species involved systematically, to arrive at a consistent system of equations for the species concentrations, electric potential and SEI thickness.
Developed in collaboration with the Weierstrass Institute (WIAS), Berlin.
Recommended citation: Pohl, C., Brosa Planella, F., Manmi, K., & Landstorfer, M. (2026). "A model for SEI growth based on non-equilibrium thermodynamics." Electrochimica Acta, 149257.
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