fig14

Figure 14. Li-metal anode with a 3D substrate. (A) Schematic illustration of unstacked graphene electrode before (left) and after Li plating (middle) and after stripping (right); (B) Structure illustrations of pristine carbon paper, spatially SiC or SiO₂^- coated carbon paper, and Li deposition on this modified carbon paper; (C) Voltage profiles of Li electrodes on the unstacked graphene or Cu foil at 2.0 mA·cm^-2 with a capacity of 0.1 mAh·cm^-2[72]. Copyright 2016, WILEY; (D) Illustration of electrochemical Li plating on planar Cu and 3D Cu^[73]. Copyright 2016 WILEY; (E) the corresponding cycling stability of Li on planar Cu and Li in 3D Cu electrodes at 0.2 mA·cm^-2[74]. Copyright 2015 Macmillan Publishers Limited; (F) Schematic diagrams for comparison of Li deposition within hierarchical porous carbon scaffold with and without decoration of ZnO nanoparticles; (G) The comparison of the Coulombic efficiency of Li deposition on pristine HPC and various ZnO@HPC^[71]. Copyright 2017, Elsevier.