fig2

Figure 2. Nucleation and growth behavior of Li depositing on the Cu and AuPP. Top view of deposited lithium of 0, 0.2 and 0.5 mA h cm^-2 at 1 mA cm^-2 on the (A, C, E) Cu and (B, D, F) AuPP. Insets are digital photos of deposited lithium on two substrates. Cross-section view of deposited lithium on the (G) Cu and (H) AuPP with a capacity of 0.5 mA h cm^-2 at 1 mA cm^-2.