Mesoporous Manganese Sulfide Spheres Anchored on Graphene Sheets as High‐Capacity and Long‐Life Anode Materials for Lithium‐Ion Batteries

A novel porous manganese sulfide/graphene composite was prepared by a simple in situ solvothermal approach. These mesoporous manganese sulfide sub‐microspheres with an average diameter of 700 nm were anchored homogeneously onto graphene nanosheets. Such a special microstructure not only effectively alleviates the mechanical strain of the electrode upon lithiation/delithiation, but it also improves contact between the electrode materials and the electrolyte. As a result, the composite exhibits a high Li‐ion storage capacity and excellent cycling stability as an anode material for lithium‐ion batteries. At a current of 50 mA h g −1 , the material delivers a reversible capacity up to 1231 mA h g −1 ; at a current density of 0.2 A g −1 , the material still retains a reversible capacity of 735 mA h g −1 after 300 cycles.