Microspheres composed of multilayer graphene as anode material for lithium-ion batteries
Microspheres composed of multilayer graphene as anode material for lithium-ion batteries
复制标题
多层石墨烯微球作为锂离子电池负极材料
DOI：
10.1016/j.jelechem.2011.01.010
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发表时间：
2011-04-01
影响因子：
4.5
通讯作者：
Song, Huaihe
中科院分区：
文献类型：
--
作者：
Wei, Tong;Wang, Fangyong;Song, Huaihe
通过在100 ℃下化学还原氧化石墨烯制备了由多层石墨烯（MMG）组成的微球。采用高分辨透射电子显微镜、扫描电子显微镜、X射线衍射、X射线光电子能谱和电化学测试技术研究了MMG作为锂离子电池负极材料的形貌、结构和电化学性能。发现MMG的比容量（453 mAh g（-1））几乎是多层石墨烯（MG，229 mAh g（-1））的两倍。此外，MMG具有良好的循环性能和高倍率充放电性能。(C)2011 Elsevier B. V.保留所有权利。
Microspheres composed of multilayer graphene (MMG) had been prepared by the chemical reduction of graphene oxide at 100 degrees C. The morphology, structure and electrochemical performance of MMG as anode material for lithium-ion batteries were investigated by high-resolution transmission electron microscope, scanning electron microscope, X-ray diffraction, X-ray photoelectron spectroscopy and electrochemical testing techniques. It is found that the specific capacity of MMG (453 mAh g(-1)) is almost twice that of multilayer graphene (MG, 229 mAh g(-1)). Furthermore, MMG exhibits good cycle performance and high-rate charge/discharge properties. (C) 2011 Elsevier B.V. All rights reserved.