A mean-field kinetic lattice gas model of electrochemical cells

Details A mean-field kinetic lattice gas model of electrochemical cells A mean-field kinetic lattice gas model of electrochemical cells

2003-03-04

arxiv.org/abs/cond-mat/0303072v1

Physics

Condensed Matter

Materials Science

14 pages twocolumn, 17 figures

Scientific paper

10.1103/PhysRevE.68.011604

We develop Electrochemical Mean-Field Kinetic Equations (EMFKE) to simulate electrochemical cells. We start from a microscopic lattice-gas model with charged particles, and build mean-field kinetic equations following the lines of earlier work for neutral particles. We include the Poisson equation to account for the influence of the electric field on ion migration, and oxido-reduction processes on the electrode surfaces to allow for growth and dissolution. We confirm the viability of our approach by simulating (i) the electrochemical equilibrium at flat electrodes, which displays the correct charged double-layer, (ii) the growth kinetics of one-dimensional electrochemical cells during growth and dissolution, and (iii) electrochemical dendrites in two dimensions.

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