ICAMS / Interdisciplinary Centre for Advanced Materials Simulation


Phase-field model for charge transfer in Li-Ion batteries

Date: 14.09.2011
Place: EUROMAT 2011 - European Congress on Advanced Materials and Processes, Montpellier, France

Ulrich Preiss
Ingo Steinbach

While the capacity of Li-Ion battery materials is mainly determined by the phase state and composition of the bulk materials, the speed of charging largely depends on the microstructure. A thermodynamically consistent way to combine bulk thermodynamics with diffusion and transfer of charged species at interfaces is given by the framework of the multi- phase-field theory. The talk will discuss the main building blocks of a phase-field model to simulate charge transfer in Li-Ion battery materials. First simulations are presented demonstrating the viability of the approach and indicating its limitations.

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