Based on the LSV, we prepare samples with electrolyte containing 25 mM H2O at different potentials, as indicated by the dashed lines. AFM topography images are shown in Figure for samples prepared with the 25 mM H2O electrolyte, and kept at 0.1, 1.2, and 1.7 V vs. Li QRE until reaching -10 mC/cm 2 , respectively (green, blue, and red dashed outline).