Abstract
Hydrated vanadates are promising layered cathodes for aqueous zinc-ion batteries. However, repeatedly intercalation/deintercalation of Zn2+ leads to structural instability, thus resulting in poor capacity and cyclic degradation. In this study, manganese-ions (Mn2+) and polyaniline are co-inserted into vanadium pentoxide (MnVO-PANI), which expands the interplanar spacing of vanadium pentoxide to 13.6 Å. Moreover, the synergistic pillar effect of Mn2+ and polyaniline enhances the electron and ion transfer kinetics. As a result, MnVO-PANI exhibits a high capacity of 462 mAh g−1 and excellent cycling stability. Even after 10,000 cycles at the current density of 5 A g−1, the MnVO-PANI cathode still displays a high capacity retention rate of 85%. These results suggest that synergistic insertion is an effective strategy to develop high-performance cathodes for aqueous zinc-ion batteries.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
