fig5
![Rational design of Ru/TiO<sub>2</sub>/CNTs as cathode: promotion of cycling performance for aprotic lithium-oxygen battery](https://image.oaes.cc/d676bf5c-5704-4c26-b6df-8524a5102fab/5434.fig.5.jpg)
Figure 5. SEM images of the Ru/TiO2/CNTs at different discharge stages: (A) fresh; (B) after first discharge; (C) after first recharge; (D) after 30 cycles; (E) after 60 cycles; (F) after 100 cycles; (G) High-resolution XPS spectra of Li 1s of Ru/TiO2/CNTs after first discharged, recharge and 30 cycles; (H) XRD patterns of the Ru/TiO2/CNTs cathode at different discharge/charge stages;