One-pot scalable synthesis of Cu–CuFe2O4/graphene composites as anode materials for lithium-ion batteries with enhanced lithium storage properties

Abstract

We develop a one-pot and scalable hydrothermal strategy to prepare nanoscale metallic Cu incorporated CuFe₂O₄ hexagonal platelets and graphene (Cu–CuFe₂O₄/G) composites at a low reaction temperature as anode materials for lithium-ion batteries (LIBs). Nanoscale metallic Cu was attached to CuFe₂O₄ hexagonal platelets and graphene sheets in the composites. Such structural features are responsible for exploiting the respective advantages to improve electrochemical performance. The Cu–CuFe₂O₄/G composites deliver a high capacity of 672 mA h g⁻¹ after 200 cycles at a current density of 1000 mA g⁻¹, good rate capability and cyclic stability due to the synergistic effect among CuFe₂O₄ hexagonal platelets, metallic Cu, and graphene sheets.