Manganese Cobalt Oxide (MnCo₂O₄) Hollow Spheres as High Capacity Anode Materials for Lithium‐Ion Batteries

Abstract

Abstract Ternary metal oxides are considered as promising anode materials for lithium‐ion batteries (LIBs), because they can circumvent the shortcomings of single‐component oxides. Herein, a facile hydrothermal route combined with calcination is used to fabricate manganese cobalt oxide (MnCo 2 O 4 ) hollow spheres comprised of many mesoporous nanosheets. When used as anode material, the MnCo 2 O 4 hollow spheres display excellent electrochemical properties. A specific capacity of 1023 mAh g −1 can be achieved after 200 cycles at a current density of 200 mA g −1 . Even at a high current density of 5000 mA g −1 , a reversible discharge capacity as high as 755 mAh g −1 can be achieved.