fig5
![Porous Nb<sub>4</sub>W<sub>7</sub>O<sub>31</sub> microspheres with a mixed crystal structure for high-performance Li<sup>+</sup> storage](https://image.oaes.cc/b50138e7-b014-4b20-b158-2bd14aee7500/em4068.fig.5.jpg)
Figure 5. GITT characterization and intercalation-pseudocapacitive behavior of Nb4W7O31: (A) first-cycle GITT curve at 0.1C, (B) E vs. τ curves for a single GITT step, (C) linear relationship of E vs. τ0.5 during a typical titration, and (D) variations in Li+ diffusion coefficients during lithiation and delithiation. (E) CV curves of Nb4W7O31/Li half cell at various scan rates. Pseudocapacitive contributions at (F) 0.2, (G) 0.4, (H) 0.7, and (I) 1.1 mV s-1.