期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 12, 期 10, 页码 1383-1386出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.07.026
关键词
Porous; Lithium-ion batteries; Electrospinning; SnO2 nanotubes
资金
- 973 National Key Basic Research Program of China [2007CB310500]
- Chinese Ministry of Education [705040]
Porous SnO2 nanotubes were prepared via electrospinning followed by calcination in air. As anode materials for lithium ion batteries, the porous nanotubes delivered a high discharge capacity of 807 mAh g(-1) after 50 cycles. Even after cycled at high rates, the electrode still retained a high fraction of its theoretical capacity. Such excellent performances of porous SnO2 nanotubes could be attributed to the porous and hollow structure which facilitated liquid electrolyte diffusion into the bulk materials and buffered large volume changes during lithium ions insertion/extraction. Furthermore, the nanoparticles of nanotubes provided the shorter diffusion length for lithium ions insertion which benefited in retaining the structural stability and good rate performance. Our results demonstrated that this simple method could be extended for the synthesis of porous metal oxide nanotubes with high performances in the applications of lithium ion batteries and other fields. (C) 2010 Elsevier B.V. All rights reserved.
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