A green hydrothermal approach for the preparation of graphene/alpha-MnO2 3D network as anode for lithium ion battery

作者：Zhang Yi; Liu Hao^*; Zhu Zehua; Wong Ka wai; Mi Rui; Mei Jun; Lau Woon ming

来源：Electrochimica Acta, 2013, 108: 465-471.

DOI：10.1016/j.electacta.2013.07.002

• Graphene
• Manganese dioxide nanocomposites
• Lithium-ion battery

Graphene/alpha-MnO2 nanocomposites (GMC) with high performance as anode material were synthesized by a facile green procedure, in which we reduced graphene from graphene oxide and prepared the GMC simultaneously through a conventional hydrothermal route. The samples are systematically investigated by X-ray diffraction analysis, Raman spectroscopy, FT-IR spectroscopy, field-emission scanning electron microscopy, and transmission electron microscopy. The GMC presents a good reversible specific capacity of 998 mAh g(-1) at a current density of 60 mA g(-1) after 30 cycles and excellent rate capabilities of 590 mAh g(-1) at a current density of 12 A g(-1). The present results indicate that GMC nanocomposites have enormous potential for application in lithium-ion batteries.

• 出版日期2013-10-1
• 单位中国石油大学（北京）; 中国工程物理研究院