Figure 4
From: Electrochemical Li Topotactic Reaction in Layered SnP3 for Superior Li-Ion Batteries

Electrochemical performances and reaction mechanism of SnP3/C nanocomposite electrode.
(a) Electrochemical voltage profile of SnP3/C nanocomposite electrode at a current rate of 100 mA g−1 (voltage range: 0.0–2.0 V). (b) Comparison of electrochemical impedance results for SnP3 and SnP3/C electrode. (c) Voltage profile within the topotactic reaction region (voltage range: 0.7–2.0 V). (d) Differential capacity plot of the first cycle during the topotactic reaction. (e) Sn K-edge EXAFS results during the topotactic reaction. (f) Sn K-edge XANES results during the topotactic reaction.