Abstract
For the first time, a flower-like VO2@V2O5 aqueous zinc-ion batteries (AZIBs) cathode material was in situ prepared through a facile hydrothermal route with post annealing process. Compared with pristine VO2, it exhibits a higher rate performance and superior cycle stability with the discharge specific capacity (DSC) of 219.36 mAh/g at a current density of 1000 mA/g after 1200 cycles, which can likely be attributed to the unique heterojunction interface between the channel structured VO2 and the layered structured V2O5, while promoting faster electron transfer and Zn2+ diffusion kinetics.
Published Version
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