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题名: Large reversible capacity of high quality graphene sheets as an anode material for lithium-ion batteries
作者: Lian, Peichao1;  Zhu, Xuefeng2;  Liang, Shuzhao1;  Li, Zhong1;  Yang, Weishen2;  Wang, Haihui1
通讯作者: Haihui Wang
关键词: Lithium-ion batteries ;  Graphite oxide ;  Thermal exfoliation ;  Graphene sheets
刊名: ELECTROCHIMICA ACTA
发表日期: 2010-04-30
DOI: 10.1016/j.electacta.2010.02.025
卷: 55, 期:12, 页:3909-3914
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 504
产权排名: 2;2
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: High quality graphene sheets were prepared from graphite powder through oxidation followed by rapid thermal expansion in nitrogen atmosphere. The preparation process was systematically investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and Brunauer-Emmett-Teller (BET) measurements. The morphology and structure of graphene sheets were characterized by scanning electron microscope (SEM) and high-resolution transmission electron microscopy (HRTEM). The electrochemical performances were evaluated in coin-type cells versus metallic lithium. It is found that the graphene sheets possess a curled morphology consisting of a thin wrinkled paper-like structure, fewer layers (similar to 4 layers) and large specific surface area (492.5 m(2) g(-1)). The first reversible specific capacity of the prepared graphene sheets was as high as 1264 mA h g(-1) at a current density of 100 mA g(-1). Even at a high current density of 500 mA g(-1), the reversible specific capacity remained at 718 mA h g(-1). After 40 cycles, the reversible capacity was still kept at 848 mA h g(-1) at the current density of 100 mA g(-1). These results indicate that the prepared high quality graphene sheets possess excellent electrochemical performances for lithium storage. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: GRAPHITE OXIDE ;  ELECTROCHEMICAL PERFORMANCE ;  CARBON NANOTUBES ;  ELECTRODE MATERIALS ;  RAMAN-SPECTRA ;  LI STORAGE ;  NANOSHEETS ;  INSERTION ;  OXIDATION ;  COKES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000277498000010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103137
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Beijing 100864, Peoples R China

Recommended Citation:
Lian, Peichao,Zhu, Xuefeng,Liang, Shuzhao,et al. Large reversible capacity of high quality graphene sheets as an anode material for lithium-ion batteries[J]. ELECTROCHIMICA ACTA,2010,55(12):3909-3914.
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