fig7

Figure 7. Composite Li anodes constructed by metal-based nitrides. (A) Schematic illustration of the preparation procedure of the Co₃N/NF electrode; (B) EIS spectra of bare Li, Li@NF, Li@CoO/NF, Li@Co₃N/NF electrode. Reproduced with permission^[100]. Copyright 2019, American Chemical Society; (C) Li 1s XPS spectra of the lithiated Mo₂N@CNF electrode; (D) The calculation model of Li-Mo or Li-C clusters. The left figure is for the Li-Mo pairs and the right figure is for Li-C pairs; (E) CE test of different electrodes. Reproduced with permission^[102]. Copyright 2019, Wiley-VCH; (F) Schematic diagram of the preparation procedure of the CNF-TiN electrode; (G) Cyclic voltammetry test of CNF-TiN electrode from 0.02 to 0.2 mV·s^-1. Reproduced with permission^[104]. Copyright 2019, Wiley-VCH. NF: Ni foam; XPS: X-ray photoelectron spectroscopy; CNF: carbon nanofiber.