A homogenous mixed coating enabled significant stability and capacity enhancement of iron oxide anodes for aqueous nickel-iron batteries

A unique homogenous MoO2 and carbon mixed coating on an iron oxide anode using simple electrodeposition is put forward. The resulting hybrid anode exhibits great enhancement in cycling stability and capacity. By pairing with a Ni0.49Cu0.51O cathode, a new 1.2 V nickel-iron battery is further assembled, delivering high power density.