Fig. 1: Scheme of s-2D mPG heterostructures for dendrite-free Na metal anode.

a Schematic of the fabrication of s-2D mPG heterostructures, and b diagram of Na deposition behaviors with bare PP separator and mPG-coated PP separator.

a Schematic of the fabrication of s-2D mPG heterostructures, and b diagram of Na deposition behaviors with bare PP separator and mPG-coated PP separator.