fig3

Figure 3. Electrochemical performance of cells with/without AuPP. (A) Voltage profiles for symmetrical Li|Li cells with PP and AuPP. (B) Rate performance of symmetrical Li cells with PP and AuPP. Coulombic efficiency of half-cells Li|Cu for 1 mA h cm^-2 at (C) 1 mA cm^-2 and (D) 2 mA cm^-2. (E) Voltage profile of the 1st cycle of half-cells Li|Cu with PP and AuPP for 1 mA h cm^-2 at (E) 1 mA cm^-2 and (F) 2 mA cm^-2.