Anchoring Mn3O4 nanoparticles onto nitrogen-doped porous carbon spheres derived from carboxymethyl chitosan as superior anodes for lithium-ion batteries

作者：Guo, Liangui; Ding, Yu; Qin, Caiqin^*; Song, Wulin; Sun, Shuangqiao; Fang, Kan; Li, Wei; Du, Jun; Wang, Feng^*

来源：Journal of Alloys and Compounds, 2018, 735: 209-217.

DOI：10.1016/j.jallcom.2017.11.068

• Lithium ion battery
• Manganese oxide
• Nitrogen-doped porous carbon sphere
• Carboxymethyl chitosan
• Anode

Mn3O4/nitrogen-doped porous carbon sphere (NPCS) nanocomposites were prepared by a simple solvothermal process. In the nanocomposites, highly crystalline Mn3O4 nanoparticles (10-20 nm) were homogeneously anchored onto conducting NPCS derived from carboxymethyl chitosan. When used as anode materials for lithium-ion batteries (LIBs), the Mn3O4/NPCS nanocomposites displayed a high specific capacity of 1629 mAh g(-1) at 100 mA g(-1) after 100 cycles, higher than the values for pure Mn3O4 and NPCS. Even at 2000 mA g(-1), a reversible capacity of 764 mAh g(-1) could still be obtained. The excellent electrochemical performance of the Mn3O4/NPCS nanocomposites can be ascribed to the N-doping and their particular hybrid structure.

• 出版日期2018-2-25
• 单位湖北工程学院; 华中科技大学