fig7
Figure 7. (A) Crystal structures of Sb and K-Sb binary phases. (B) DFT-calculated equilibrium voltages (vs. K/K+) for potassiation process. (C) CV curves of Sb-based electrode at a scan rate of 0.05 mV s-1[80]. Copyright 2019, Royal Society of Chemistry. (D) In-situ XRD patterns of 3D Sb nanoparticle (NP)@C electrode during a potassiation/depotassiation/potassiation process at 100 mA g-1 and the corresponding discharge/charge curves[81]. Copyright 2018, Royal Society of Chemistry. (E) Crystal structures of c-K3Sb and h-K3Sb. (F) Critical energies for nucleation of K3Sb phase[83]. Copyright 2019, American Chemistry Society.
