Lithium Metal Batteries: Tailoring Lithium Deposition Via an SEI‐Functionalized Membrane Derived from LiF Decorated Layered Carbon Structure (adv. Energy Mater. 12/2019)

In article number 1802912, Zhe Peng, Chuying Ouyang, Deyu Wang and co-workers report an interesting feature of SEI-functionalized artificial layers, derived from a LiF decorated carbon layered structure. Surface chemistry and modeling analysis give evidence of a special conversion of LiF into C-Fx surface components on defective carbon sheets during Li plating, and the as-formed SEI-functionalized layer can retard electron transfer by three orders of magnitude to avoid undesirable Li deposition on the top surface, and ameliorates Li+ ion migration to enable uniform and dendrite-free Li deposition beneath such an interlayer.