期刊
NANO RESEARCH
卷 10, 期 6, 页码 1950-1958出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-016-1381-6
关键词
Sn; polyaniline; nanocomposite; lithium ion battery (LIB)
类别
资金
- National Natural Science Foundation of China [U1201241, 11375020, 51431001, 21321001]
We report a simple method of preparing a high performance, Sn-based anode material for lithium ion batteries (LIBs). Adding H2O2 to an aqueous solution containing Sn2+ and aniline results in simultaneous polymerization of aniline and oxidation of Sn2+ to SnO2, leading to a homogeneous composite of polyaniline and SnO2. Hydrogen thermal reduction of the above composite yields N-doped carbon with hierarchical porosity and homogeneously distributed, ultrafine Sn particles. The nanocomposite exhibits excellent performance as an anode material for lithium ion batteries, showing a high reversible specific capacity of 788 mAh.g(-1) at a current density of 100 mA.g(-1) after 300 cycles and very good stability up to 5,000 mA.g(-1). The simple preparation method combined with the good electrochemical performance is highly promising to promote the application of Sn based anode materials.
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