fig9

Figure 9. (A) (a and b) Charge/discharge profiles of Sb/NiSb and Sb anodes. (c) Cyclic performances of Sb/NiSb and Sb anodes at 100 mA g^-1 for 100 cycles. (d) Rate performances at different ampere densities (0.1-2 A g^-1). (B) (a and b) SEM images of Sb/NiSb and Sb-derived anodes after 100 cycles. (c and d) Digital photos of Sb/NiSb and Sb anodes after 100 cycles. (C) (a) Contour mapping (left) of Operando XRD results and corresponding charge/discharge profile (right); (b) Three-dimensional (3D) view graphics between 24° and 54° and (c) 54°-72° of the Sb/NiSb electrode. (D) (a) TEM, (b) SAED, (c) HR-TEM patterns of the fully sodiated Sb/NiSb anode (0.02 V vs. Na/Na⁺). Reproduced with permission from^[117]. Copyright © 2020 Elsevier.