Hollow polyhedral ZnCo2O4 anode materials for lithium-ion batteries

Hollow polyhedral ZnCo2O4 materials were prepared with metal–organic frameworks (MOFs) precursors and used as anode materials for lithium-ion batteries. The porous ZnCo2O4 can be tailored effectively by treating MOFs precursors using different solvents, which displayed different structures, morphologies and electrochemical performances. The ZnCo2O4 treated by methanol delivered a high discharge capacity of 1097.3 mAh g−1 at 100 mA g−1, excellent rate capability with a discharge capacity of 581.5 mAh g−1 at 1600 mA g−1, and a well reversibility of 891.7 mAh g−1 when current density returned to 100 mA g−1.