fig4

Figure 4. Composite Li anodes constructed by codoping strategy. (A) Scheme diagram of the synthetic procedure of NPCC-Li electrode; (B) Cycling stability of symmetric cells with different electrodes. Reproduced with permission^[82]. Copyright 2019, Wiley-VCH; (C) Illustration of the preparation process of Li-GL/NS-CP electrode; (D) EDX mapping images of NS-CP. (E) CE test of Cu foil, NS-CP and GL/NS-CP electrodes at 1.0 mA·cm^-2. Reproduced with permission^[84]. Copyright 2020, Elsevier; (F) Preparation process of hierarchical polymer/C sheet arrays on Cu electrode; (G) EDX mapping images of NOCA@Cu electrode. Reproduced with permission^[83]. Copyright 2021, Wiley-VCH; (H) Li deposition behavior on the Cu substrate and Cu@OBHcC substrate; (I) Cycling stability of symmetric cells with different electrodes at a current density of 0.5 mA·cm^-2. Reproduced with permission^[85]. Copyright 2022, Wiley-VCH. NPCC: N, P codoped carbon cloth; EDX: energy dispersive X-ray spectroscopy.