fig8

Figure 8. (A) Illustration of TEM device and (B) potassiation/depotassiation processes of Sb@carbon nanofibers (CNFs) with Sb nanoparticles confined in carbon shell. (C and D) Potassiation and depotassiation processes of Sb@CNFs^[86]. Copyright 2020, Wiley-VCH. (E) Schematic illustration of traditional Sb and Sb@graphene (G)@C electrodes during potassiation/depotassiation processes^[87]. Copyright 2018, Royal Society of Chemistry.