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SEM of plated lithium microstructure. SEM images of lithium microstructures deposited on (a) c-AcH-Cu and (b) d-HCl-Cu disks using the procedure depicted in Figure 1a with a current density of 0.03 mA cm–2 (top) or 1.2 mA cm–2 (middle and bottom), after either 1 h rest (top and middle) or 12 h rest (bottom) at OCV, after cell assembly. The scale bars are 2 μm in the top two images and 10 μm in the middle and bottom two.
