Easy preparation of Sn02@carbon composite nanofibers with improved lithium ion storage properties

Zunxian Yang; Guodong Du; Zaiping GuoXuebin YuZhixin ChenPeng ZhangGuonan ChenHuakun Liu

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Easy preparation of Sn02@carbon composite nanofibers with improved lithium ion storage properties

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Sn02@carbon nanofibers were synthesized by a combination of electrospinning andsubsequent thermal treatments in air and then in argon to demonstrate their potential useas an anode material in lithium ion battery applications. The as-prepared Sn02@carbonnanofibers consist of SnO2 nanoparticles/nanocrystals encapsulated in a carbon matrixand contain many mesopores. Because of the charge pathways, both for the electrons andthe lithium ions, and the buffering function provided by both the carbon encapsulating theSnO2 nanoparticles and the mesopores, which tends to alleviate the volumetric effectsduring the charge/discharge cycles, the nanofibers display a greatly improved reversiblecapacity of 420 mAh/g after 100 cycles at a constant current of 100 mA/g, and a sharplyenhanced reversible capacity at higher rates (0.5, 1, and 2 C) compared with pure SnO2nanofibers, which makes it a promising anode material for lithium ion batteries.

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来源
《Journal of Materials Research》 |2010年第8期|1516-1524|共9页
作者
Zunxian Yang; Guodong Du; Zaiping GuoXuebin YuZhixin ChenPeng ZhangGuonan ChenHuakun Liu;
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作者单位

Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong,NSW 2522, Australia;

Institute for Superconducting and Electronic Materials, and School of Mechanical, Materials;

School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong,Wollongong NSW 2522, AustraliaKey Laboratory of Analysis and Detection Technology for Food Safety of the Ministry of Education, Fuzhou University, Fuzhou 350002, People's Republic of China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Easy; preparation; properties;

Easy preparation of Sn02@carbon composite nanofibers with improved lithium ion storage properties

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