Fig. 4: Components on the surface of anodes after cycling.
From: Interface chemistry of an amide electrolyte for highly reversible lithium metal batteries
a, b X-ray photoelectron spectroscopy (XPS) depth profiles of C 1s, F 1s, Li 1s and N 1s spectra of Li metal anodes after 50 cycles for both electrolytes. c The relative composition of Li-containing species.
