Efficient Simulation of 2D Models for Microstructure Evolution in Lithium-Metal Batteries

Abstract

The lithium-metal batteries are receiving great attention as one of the most promising candidates of next-generation batteries.1 While the Li-ion batteries use graphite to intercalate lithium, lithium-metal batteries do not need extra components except lithium plate itself and it is significantly advantageous in the specific capacity. On the other hand, the surface property of lithium metal anode greatly affects the performance of the battery and increases the dendrite growth and “dead” lithium over the cycle.2 Therefore, understanding the behavior of lithium-metal anode during the cycle is critical to mitigate the safety issue and enhance the overall performance of the battery.In this talk, we first analyzed a previous one and two-dimensional model for Li-ion to lithium-metal battery under different geometry and rates.3 Different approaches for simulation are compared and preliminary results for microstructure evolution will be presented. Acknowledgments This research was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the US Department of Energy (DoE) through the Advanced Battery Materials Research Program (Battery500 Consortium) and Texas Materials Institute at the University of Texas at Austin.