期刊
MATERIALS LETTERS
卷 65, 期 5, 页码 897-900出版社
ELSEVIER
DOI: 10.1016/j.matlet.2010.12.008
关键词
Lithium ion anodes; Nanomaterials; Ordered mesoporous carbon; Porosity; Platelet graphitic pore walls
资金
- National Natural Science Foundation of China [50802028]
- Postdoctoral Science Foundation of China [20070410980]
- Hunan Provincial Natural Science Foundation of China [10JJ2036]
- Research Foundation of Education Bureau of Hunan Province, China [09A036]
An ordered mesoporous carbon (OMC) with controllable molecule crystal and platelet graphitic pore walls, which is directionally grown on the internal pore walls of SBA-15 or anchors at liquid/silica interfaces by molecule engineering, has been investigated as lithium ion anodes. It is found that the OMC exhibits high kinetics, rate and cycling performance. The i(0) and D-Li are almost constant after 50 cycles. OMC shows a high reversible specific capacity of 153.9 mAh g(-1) at the current density as high as 3500 mA g(-1). The excellent electrochemical performance could be attributed to the presence of the porosity and platelet graphitic pore walls. (C) 2011 Elsevier B.V. All rights reserved.
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