Fig. 4: Electrochemical performances.

a Co-plot of areal capacity and coulombic efficiency vs. cycling of the Ag|LLZO|Li half-cell. b Charge/discharge profiles and (c) co-plot of areal capacity and coulombic efficiency vs. cycling of the Ag|LLZO|NCM full-cell at different current densities. The cell failed during the early stages of discharge at 0.9 mA cm−2.