Facile thermochemical conversion of FeOOH nanorods to ZnFeO nanorods for high-rate lithium storage.

We successfully prepared ZnFeO nanorods (ZFO-NRs) by a simple thermochemical reaction of FeOOH nanorods with Zn(NO) to use as an anode material in lithium-ion batteries. The FeOOH nanorod shape was well maintained after conversion into ZFO-NR with the formation of porous structures. The nanorod structure and porous morphology facilitate Li transport, improve the reaction rates owing to the larger contact area with the electrolyte, and reduce the mechanical stress during lithiation/delithiation.