Regulating Mass Transport Behavior for High‐Performance Lithium Metal Batteries and Fast‐Charging Lithium‐Ion Batteries

Mass transport plays an important role in the process of metal deposition and the charging/discharging kinetics in a rechargeable battery. The rational regulation of mass transport behavior to realize optimum ion-transfer direction and rate can enable uniform metal nucleation and reduced concentration polarization, which is favorable for overcoming the dendrite growth and lithium plating issues in metal batteries and fast-charging batteries, respectively. Here, recent progress in lithium metal batteries and fast-charging batteries achieved through the mass-transport regulation are summarized. An introduction of mass transport and a discussion of its decisive role in battery operation are provided, followed by an exploration of the correlation between mass-transport regulation and battery performance. Some future perspectives and research directions for regulating mass transport to enable high-performance rechargeable batteries are also discussed.