Zn3V3O8/NC hybrid microspheres self-assembled by layered porous nanosheets as a superior anode material for lithium/sodium-ion batteries

Zinc-vanadium oxides have been attracting increasing consideration as anode materials for lithium/sodium-ion batteries (LIBs and SIBs) recently. Present applications are hampered by issues, including their inferior electric conductivity and enormous volume variation. Herein, nitrogen-doped carbon wrapped Zn3V3O8 (Zn3V3O8/NC) microspheres composed of abundant nanosheets were developed as an anode material by a self-assembly strategy and subsequent surface decoration. The resulting Zn3V3O8/NC porous hybrid exhibited a high specific capacity, impressive rate capability, and long-term cycling stability for both LIBs and SIBs. Notably, the superior electrochemical properties could be assigned to novel meso/microporous features, hybrid nitrogen-doped carbon, and mixed storage mechanisms.

Automated summary

Nitrogen-doped carbon-wrapped Zn3V3O8 microspheres were developed as an anode material for lithium/sodium-ion batteries, showing high specific capacity, impressive rate capability, and long-term cycling stability. The superior electrochemical properties were attributed to the novel meso/microporous features, hybrid nitrogen-doped carbon, and mixed storage mechanisms present in the material.