A rapid in situ electrochemical transformation of the biphase Zn3(OH)2V2O7·2H2O/NH4V4O10 composite for high capacity and long cycling life aqueous rechargeable zinc ion batteries

The Zn 3 (OH) 2 V 2 O 7 ·2H 2 O/NH 4 V 4 O 10 nanobelts transform into Zn 3 V 2 O 7 (OH) 2 -based materials by an in situ electrochemical conversion, which act as an active cathode for high capacity aqueous zinc ion batteries.