Synthesis and electrochemical performance of rod-like CuFe2O4 as an anode material for Na-ion battery

• Rod-like CuFe2O4 was synthesized by a co-precipitation method in ethanol–water at room temperature.
• The rod-like CuFe2O4 showed the formation of mesopores and large specific surface area.
• The rod-like CuFe2O4 exhibit excellent sodium storage properties as an anode material for Na-ion battery.

The rod-like CuFe2O4 was synthesized by a co-precipitation method in ethanol–water solution at room temperature. When evaluated as an anode material for Na-ion battery, the CuFe2O4 sample obtained at 400 °C could deliver a discharge capacity of 281 mAh g–1 in the 20th cycle at 100 mA g–1, which corresponds to 70.5% of the 2nd discharge capacity. Such excellent performance is a result of the formation of mesopores and large specific surface area of the rod-like CuFe2O4.

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