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(a−i) SEM images of electrodissolution at current densities of (a−c) 0.1 mA cm−2, (d−f) 1 mA cm−2, and (g−i) 5 mA cm−2, respectively. (j−l) Proportion of dissolved area to total electrode area for current densities of (j) 0.1 mA cm−2, (k) 1 mA cm−2, and (l) 5 mA cm−2, respectively. (m−o) LSCM images and section profiles for a capacity of 0.5 mAh cm−2 at current densities of (m) 0.1 mA cm−2, (n) 1 mA cm−2, and (o) 5 mA cm−2, respectively. (p) Depth analysis of different current densities with a capacity of 0.5 mAh cm−2. (q) Schematic illustration of the electrodissolution mechanism at different current densities.
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