fig20

Figure 20. (A) (a) XRD pattern of BTO@SnO₂@P-C and SnO₂@P-C, (b) SEM image, (c) TEM with SAED pattern image (inset), and (d) HR-TEM image. (B) Long cycle performance of BTO@SnO₂@P-C at (a) 2 A g^-1 and (b) 10 A g^-1. (C) In-situ XRD analysis of BTO@SnO₂@P-C at the initial cycle: (a) Voltage-time curves at 0.1 A g^-1 (left) and BTO (1 1 0) plane contour pattern (right), (b) XRD profile of BTO (1 1 0) when discharged from 1.5 to 0.1 V, and (c) Corresponding voltage-2θ curves, (d) XRD profile of BTO (1 1 0) charged from 0.1 to 1.5 V, and (e) Corresponding voltage-2θ curves. Reproduced with permission from^[206]. Copyright © 2022 Elsevier.