fig5
Figure 5. Comparisons of the cathodes in the MnO2/VOSO4-Zn and MnO2-Zn batteries after cycling: (A) XRD patterns, SEM images after (B) 10 and (C) 100 cycles of the cathode in the MnO2/VOSO4-Zn battery. (D) XRD patterns, SEM images after (E) 10 and (F) 100 cycles of the cathodes in the MnO2-Zn battery.
