An oriented laterally-growing NiCo2O4 nanowire array on a Fe2O3 microdisc as a high-capacity and excellent rate-performance secondary battery anode

Abstract

A novel hierarchical composite consisting of an ordered NiCo₂O₄ nanowire array growing on the lateral side of a Fe₂O₃ microdisc is presented, which was confirmed by X-ray holography technology on a synchrotron radiation station. The composite-based Li-ion battery anode exhibits a high capacity of 1528 mA h g⁻¹ after 200 cycles at 0.2C, a recoverable rate-performance after repeated tests, and robust mechanical properties.