二次电池中金属锂负极沉脱机理研究进展

Lithium metal is one of the most promising materials for the next generation secondary batteries. Lithium metal batteries possess an extremely high theoretical energy density, but still face many challenges, such as low Coulombic efficiency and short battery lifespan. In order to realize the reasonable design and optimization of lithium metal battery with high energy density and high safety, it is necessary to have a clear understanding on the mechanisms of ion transport, electron transport, interface reaction and so on. Recently, aiming at the mechanism of dendrite growth, dead lithium formation and solid electrolyte interphase in lithium metal anode, researchers have made many progress in the mechanism research with theoretical calculations and experiments, providing a more comprehensive mechanism understanding for the rational design of lithium metal battery.