Research / 2019 / Article / Fig 2

Research Article

Hybrid Aqueous/Organic Electrolytes Enable the High-Performance Zn-Ion Batteries

Figure 2

Structure evolution of V2O5·nH2O/CNT. Discharge/charge profiles of V2O5·nH2O/CNT electrodes in (a) Zn-H2O and (b) Zn-EC/EMC with corresponding cyclic performances in the inset, (c) XRD patterns of V2O5·nH2O/CNT electrodes in Zn-EC/EMC at different discharge and charge states with the corresponding discharge and charge curves, (d) XRD patterns of V2O5·nH2O/CNT electrodes before and after the 100th charge in Zn-H2O and Zn-EC/EMC, and (e) XPS deconvoluted V 2p spectra of electrodes in pristine and fully discharged/charged states.