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Published in:
2019 | OriginalPaper | Chapter
Coupled Thermal and Electrochemical Diffusion in Solid State Battery Systems
Authors : Marek Werner, Kerstin Weinberg
Published in: New Achievements in Continuum Mechanics and Thermodynamics
Publisher: Springer International Publishing
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In the light of today’s extensive research on rechargeable batteries a electro-chemically diffusion model for a temperature sensitive multi-phase solid is presented. The derivation of the model is based on the framework of the Thermodynamics of Irreversible Processes with the assumption of a local equilibrium. The physical effects which are accounted for are: the flux of ions including chemical reactions, the heat flux, the electrical current, and their coupling resulting, e.g. in phase decomposition, thermal diffusion, and thermoelectric effects. Two numerical examples illustrate typical applications and demonstrate the versatility of the coupled multi-physics model.