fig2

Figure 2. Electrochemical performance of the different anodes in symmetrical cells. (A) long-term plating/stripping profiles of composite anodes with the different hosts in symmetrical cells at 1 mA cm^-2 and 1 mA h cm^-2 and (B) the corresponding Nyquist plots; (C) overpotential profiles during the first Li plating cycle; SEM images of (D) WN/Mo₂N@HCN/Li and (E) pure Li metal anode after 200 h cycles; (F) long-term plating/stripping profiles of WN/Mo₂N@HCN/Li and pure Li metal anode in symmetrical cells at 2 mA cm^-2 and 2 mA h cm^-2 and (G) the corresponding partial enlargement at 500-510 h.