A　simple　and　versatile　method　for　preparation　of　new　crystalline　graphite　nitrate-like　ammonium　vanadium　bronze　(NH4)0.19V2O5·0.44H2O　nano-microstructures　is　developed　via　a　simple　hydrothermal　route　following　heat　treatment.　(NH4)0.19V2O5·0.44H2O　platelets　are　tested　as　a　novel　high-energy　cathode　material　for　sodium-ion　batteries.　The　enhancement　of　electrochemical　performance　for　a　(NH4)0.19V2O5·0.44H2O　platelet　electrode　is　offered　by　addition　of　graphene　and　using　graphite　nitrate-like　ammonium　vanadium　bronze　microflowers.　A　graphene-based　graphite　nitrate-like　vanadium　bronze　microflower　composite　shows　a　higher　discharge　capacity　of　208.9　A　h　g-1　for　the　second　cycle　in　a　1.5-3.4　V　voltage　limit　at　a　discharge　current　density　of　20　mA　g-1.　The　reversible　capacity　of　141.5　A　h　g-1　remained　after　40　cycles.　©　2014　the　Partner　Organisations.