A super-slippery graphene film enables highly reversible superdense deposition of a lithium metal anode

Abstract

Ultraconformal and stretchable graphene films are expected to be an ideal artificial solid electrolyte interphase (SEI). A stacked graphene nanosheet film (SGNF) that can easily interlayer slip achieves columnar superdense lithium deposition to inhibit side reactions. The lithium metal anode with optimized SGNF demonstrates exceptional stability (over 5000 hours).