fig6

Figure 6. (A) Schematic illustration and (B) TEM images of Bi@porous carbon composite^[64]. Copyright 2019, Wiley-VCH. (C) Schematic illustration of synthetic procedure and (D) TEM images of C@DSBC. (E) Schematic illustration of superior electrochemical performance of C@DSBC under high current density^[60]. Copyright 2019, Elsevier. (F) Schematic illustration of synthesis procedure for Bi@3D graphene foams (GFs)^[63]. Copyright 2019, Royal Society of Chemistry. (G) Schematic illustration of synthesis of Bi@N-C composite. (H) Rate performance of Bi@N-C and Bi anodes from 1 to 30 A g^-1 and (I) long-term cycling stability of Bi@N-C and Bi anodes at high rates of 5 and 10 A g^-1[65]. Copyright 2020, Royal Society of Chemistry.