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

Abstract

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 Ni_0.49Cu_0.51O cathode, a new 1.2 V nickel–iron battery is further assembled, delivering high power density.