fig12

Figure 12. (A) Schematic of the synthesis, (B) SEM and (C) TEM images, and (D) rate performance of yolk-multi-shell V2O3/C[95]. (E) Schematic illustration of the sodiation process in core-shell Sn4P3@C and multiyolk-shell Sn4P3@C. (F) TEM and (G) SEM images (H) cycling performance and (I) rate performance of multiyolk-shell Sn4P3@C[96]. (J) Schematic illustration, (K-M) TEM images, and (N-P) electrochemical performance of Bi@Void@C with different void sizes[98].