Recent advances of fabricating vanadium nitride nanocompositions for high-performance anode materials of supercapacitors

The extremely high theoretical capacity, electronic conductivity, and wide voltage range endow vanadium nitride good electrochemical performance, while there are still great difficulties in fabricating vanadium nitride in nanoscale with dramatically improved energy storage ability. In this review, starting with the physicochemical and electrochemical properties of nano vanadium nitride, the research progress of pure nano vanadium nitride and vanadium nitride based nanocomposites in supercapacitors applications in recent years from the perspective of nanostructure and composite modification; the strategies in reasonably constructing and modifying vanadium nitride based energy storage materials are summarized; and the characteristics and challenges of nano vanadium nitride materials for in supercapacitors are discussed. This review could provide more options for modifying nano vanadium nitride and optimize their properties as potentially the next generation anode materials supercapacitor.