CONCLUSIONS
In summary, an advanced 3D skeleton (ZSONT/CC) was developed to serve as lithium metal host with both structural and compositional homogeneity for high-performance LMBs. Upon lithiation, the in-situ formed Li2S-Li2O-LiZn rich SEI on 3D carbon host efficiently guided the uniform lithium deposition, stabilized the electrolyte-electrode interface, and facilitated Li+ ion transport in the repeating lithium plating/stripping process. As a result, excellent cycle stability was maintained when Li/ZSONT/CC anode was applied in symmetrical cells and full cells, and a high CE was achieved. This work provides an effective design strategy for SEI formation on a 3D electrode host with possible control on the SEI content.