Synthesis of self-stacked CuFe2O4–Fe2O3 porous nanosheets as a high performance Li-ion battery anode

Abstract

Self-stacked CuFe₂O₄–Fe₂O₃ porous nanosheets were prepared via a facile polyol-mediated route followed by calcination. Because of its highly porous structures and good electrical and ion conductivity of the well-dispersed CuFe₂O₄ phase in the matrix, the hybrid material exhibits high specific capacity of 910 mA h g⁻¹ at 0.5 C after 200 cycles, superior capacity retention (0.02% capacity loss per cycle) and good rate capability (417 mA h g⁻¹ at 4 C) as a promising anode material for Li-ion batteries.