Kinetic Monte Carlo Simulation of Lithium Dendrite Growth in Lithium-ion Battery

Abstract

Lithium plating is the key safety and capacity fade issue in lithium-ion battery. Here, we report a method using kinetic Monte Carlo simulation to simulate the dendrite growth process during lithium plating under over-charging, fast charging and low-temperature charging conditions. The morphology of lithium dendrite is tree-like, showing obvious tip attraction. The lithium plating number, average dendrite length, dendrite distribution coefficient, dendrite height and dendrite density are proposed to describe the lithium dendrite quantitatively. Finally, it is proved that pulse charging can effectively inhibit the lithium plating and dendrite growth.