Self-assembled vanadium oxide nanoflowers as a high-efficiency cathode material for magnesium-ion batteries

Crystallization and electrochemical properties of KxV2O5 nano-ribbons obtained via a solvothermal process as a promising cathode for PIBs

“…Among diverse layered transition-metal oxides, the orthorhombic vanadium pentoxide (V 2 O 5 ) possesses multi-channel architectural features and variable valence states (V 2+ -V 5+ ), which has been used as a cathode material with high specific capacity for LIBs, SIBs, Zn-ion batteries and Mg-ion batteries. [14][15][16][17][18][19][20] However, V 2 O 5 could not exhibit favourable potassium storage characteristics when it was directly used as the cathode for PIBs. 21 Some reports indicate that the introduction of intercalating cations, such as K + and NH 4 + , during V 2 O 5 crystal formation can effectively improve its K + storage performance.…”