期刊
ELECTROCHIMICA ACTA
卷 89, 期 -, 页码 310-316出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.11.042
关键词
Rice paper; Carbon film; Free-standing; Separator; Lithium-ion battery
资金
- National Science Foundation of China [20971117, 10979049, J1030412]
- Education Department of Anhui Province [KJ2009A142]
Rice paper (RP) is thermally carbonized in nitrogen to prepare three-dimensionally porous carbon films, which are used for the first time as both a free-standing active anode material and a current collector of a cathode (LiFePO4 here) for lithium-ion batteries. The latter is fabricated through a one-step co-sintering of a Li-Fe-P-O precursor top layer supported on the rice paper. The rate and cycling performances of both these electrodes are found to be rather good or even better than the traditional electrodes due to the three-dimensionally porous structure of the RP-derived carbon. We also design and fabricate an RP-based full cell constructed with the above mentioned anode and cathode together with an RP membrane as the separator. Without using traditional metallic current collectors and separator membranes, such a cell exhibits reversible cycling performance. (C) 2012 Elsevier Ltd. All rights reserved.
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