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学科主题: 物理化学
题名: Facile encapsulation of nanosized SnO2 particles in carbon nanotubes as an efficient anode of Li-ion batteries
作者: Liu, Xin1;  Wu, Minghao2;  Li, Mingrun1;  Pan, Xiulian1;  Chen, Jian2;  Bao, Xinhe1
通讯作者: 潘秀莲 ;  陈剑
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2013
DOI: 10.1039/c3ta00049d
卷: 1, 期:33, 页:9527-9535
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: 5,DNL03
项目归属: 502,DNL03T2
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
资助者: 1,1
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: An efficient anode with a superior high-rate capability and stability remains a challenge for development of high performance Li-ion batteries. We present a new concept by encapsulating 2 nm-sized SnO2 nanocrystals in the channels of carbon nanotubes (SnO2-in-CNTs). Characterization shows that the confined space does not only stabilize the small nanoparticles but also alleviates the stress caused by the large volume change of tin species during the charging-discharging process. In addition, well crystallized graphitic structure of CNTs with a positive curvature provides a good contact between SnO2 nanoparticles and graphene layers, and excellent electronic conductivity. As a result, SnO2-in-CNTs as an anode of lithium ion battery exhibit stable cyclability and superior high-rate capability relative to SnO2 nanoparticles dispersed on the outer walls of CNTs particularly under a high current density. The charge capacity remains about 560 mA h g(-1) after 50 cycles at 50 mA g(-1), and even around 400 mA h g(-1) at 1000 mA g(-1). Additionally, the facile preparation method we have developed makes such encapsulates appealing for further optimization and applications.
关键词[WOS]: LITHIUM SECONDARY BATTERIES ;  LARGE-SCALE SYNTHESIS ;  TIN OXIDE COMPOSITES ;  HIGH-CAPACITY ;  ELECTROCHEMICAL PERFORMANCE ;  RECHARGEABLE BATTERIES ;  STORAGE CAPACITY ;  NANOPARTICLES ;  FABRICATION ;  LITHIATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000322475600026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119289
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.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Adv Rechargeable Batteries Lab, Dalian 116023, Peoples R China

Recommended Citation:
Liu, Xin,Wu, Minghao,Li, Mingrun,et al. Facile encapsulation of nanosized SnO2 particles in carbon nanotubes as an efficient anode of Li-ion batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2013,1(33):9527-9535.
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