Synthesis and electrochemical properties of FeSbO4 nanorods

Well-crystallized FeSbO₄ nanorods with rutile-like structure are synthesized through a solid-state reaction and used as cathode material of Li-ion battery for the first time. The obtained nanorods can react with ～11 Li-ions per FeSbO₄ unit with a specific discharge capacity of 1 100 mAh·g^? between 0.1 and 2.0 V. Three discharge plateaus can be observed during the fully discharging process, but the reversible reaction with ～1 Li occurs between 1.5 V and 4.5 V vs. Li⁺/Li, and the reversible capacity is only 50–80 1 mAh·g^?. FeSbO₄ nanorods have a stable cyclic performance between 1.5 V and 4.5 V and it can be used as cathode material for rechargeable Li-ion battery.