To make the analysis quantitative, we compared the aspect ratio of plated Li across different samples at the same terminating lithium plating capacity at failure (9.0×10 -5 mA•h). In Figure Ag 0 |LLZO has a lateral plating diameter of 290 µm. This result is consistent with prior work that metallic Ag 0 coating improves wettability through the formation of Li-Ag alloy . Despite the improved wettability, short circuit events still occur at a lower plating capacity for Ag 0 |LLZO (the mean terminating capacity of 1.6×10 -5 mA•h) compared to that of Ag + -LLZO (the mean terminating capacity of 1.4×10 -4 mA•h) (Figure and Figure ).