期刊
ELECTROCHIMICA ACTA
卷 116, 期 -, 页码 512-517出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.11.077
关键词
Aqueous rechargeable sodium battery (ARSB); Anode; Cathode; Polypyrrole; MoO3
资金
- NSFC [21073046]
- STCSM [12JC1401200]
A nanocomposite of molybdenum trioxide (MoO3) nanobelts coated with polypyrrole was prepared as an anode material for aqueous rechargeable sodium batteries (ARSBs). When nanowire Na-0.35 MnO2 is used as the cathode, the ARSB can deliver an energy density of 20 Wh kg(-1) at 80W kg(-1) and even maintain 18 Wh kg(-1) at 2.6 kW kg(-1) in 0.5 mol L-1 Na2SO4 aqueous electrolyte, suggesting a good rate capability that can be comparable with supercapacitors. In addition, its cycling behavior is greatly improved compared with the virginal MoO3. This will provide a new direction to explore non-carbon anode materials for ARSBs with excellent electrochemical performance. This good performance exhibits that this battery will be a promising candidate for the storage of solar and wind energies. (C) 2013 Elsevier Ltd. All rights reserved.
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