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题名: Superior cycle performance of Sn@C/graphene nanocomposite as an anode material for lithium-ion batteries
作者: Liang, Shuzhao1;  Zhu, Xuefeng2;  Lian, Peichao1;  Yang, Weishen2;  Wang, Haihui1
关键词: Tin ;  Carbon coating ;  Graphene ;  Anode material ;  Lithium-ion batteries
刊名: JOURNAL OF SOLID STATE CHEMISTRY
发表日期: 2011-06-01
DOI: 10.1016/j.jssc.2011.03.052
卷: 184, 期:6, 页:1400-1404
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Inorganic & Nuclear ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: A novel anode material for lithium-ion batteries, tin nanoparticles coated with carbon embedded in graphene (Sn@C/graphene), was fabricated by hydrothermal synthesis and subsequent annealing. The structure and morphology of the nanocomposite were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The size of the Sn@C nanoparticles is about 50-200 nm. The reversible specific capacity of the nanocomposite is similar to 662 mAh g(-1) at a specific current of 100 mA g(-1) after 100 cycles, even similar to 417 mAh g(-1) at the high current of 1000 mA g(-1). These results indicate that Sn@C/graphene possesses superior cycle performance and high rate capability. The enhanced electrochemical performances can be ascribed to the characteristic structure of the nanocomposite with both of the graphene and carbon shells, which buffer the volume change of the metallic tin and prevent the detachment and agglomeration of pulverized tin. (C) 2011 Elsevier Inc. All rights reserved.
关键词[WOS]: CARBON SPHERES ;  HOLLOW CARBON ;  ALLOY ANODE ;  CAPACITY ;  STORAGE ;  NANOPARTICLES ;  PARTICLES ;  NANOTUBES ;  ELECTRODE ;  OXIDE
语种: 英语
WOS记录号: WOS:000291332300008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142673
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, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Liang, Shuzhao,Zhu, Xuefeng,Lian, Peichao,et al. Superior cycle performance of Sn@C/graphene nanocomposite as an anode material for lithium-ion batteries[J]. JOURNAL OF SOLID STATE CHEMISTRY,2011,184(6):1400-1404.
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