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

被引:32
作者
Chen, Dezhi [1 ,2 ]
Quan, Hongying [3 ]
Huang, Zhongning [1 ,2 ]
Guo, Lin [1 ,2 ]
机构
[1] Nanchang Hangkong Univ, Sch Environm & Chem Engn, Key Lab Jiangxi Prov Persistent Pollutants Contro, Nanchang 330063, Peoples R China
[2] Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China
[3] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China
基金
中国国家自然科学基金;
关键词
anode materials; graphene; lithium-ion batteries; manganese sulfide; mesoporous materials; REVERSIBLE CAPACITY; ENERGY-CONVERSION; FACILE SYNTHESIS; OXIDE; COMPOSITES; CARBON; NANOSTRUCTURES; NANOPARTICLES; NANOSHEETS; REDUCTION;
D O I
10.1002/celc.201500171
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
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 be-tween 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 mAhg(-1), the material delivers a reversible capacity up to 1231 mAhg(-1); at a current density of 0.2 Ag-1, the material still retains a reversible capacity of 735 mAhg(-1) after 300 cycles.
引用
收藏
页码:1314 / 1320
页数:7
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