Issue 28, 2011

An advanced model framework for solid electrolyte intercalation batteries

Abstract

Recent developments of solid electrolytes, especially lithium ion conductors, led to all solid state batteries for various applications. In addition, mathematical models sprout for different electrode materials and battery types, but are missing for solid electrolyte cells. We present a mathematical model for ion flux in solid electrolytes, based on non-equilibrium thermodynamics and functional derivatives. Intercalated ion diffusion within the electrodes is further considered, allowing the computation of the ion concentration at the electrode/electrolyte interface. A generalized Frumkin–Butler–Volmer equation describes the kinetics of (de-)intercalation reactions and is here extended to non-blocking electrodes. Using this approach, numerical simulations were carried out to investigate the space charge region at the interface. Finally, discharge simulations were performed to study different limitations of an all solid state battery cell.

Graphical abstract: An advanced model framework for solid electrolyte intercalation batteries

Supplementary files

Article information

Article type
Paper
Submitted
09 Nov 2010
Accepted
20 May 2011
First published
16 Jun 2011

Phys. Chem. Chem. Phys., 2011,13, 12817-12825

An advanced model framework for solid electrolyte intercalation batteries

M. Landstorfer, S. Funken and T. Jacob, Phys. Chem. Chem. Phys., 2011, 13, 12817 DOI: 10.1039/C0CP02473B

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