期刊
JOURNAL OF POWER SOURCES
卷 194, 期 2, 页码 1222-1225出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2009.06.068
关键词
Supercapacitor; NaMnO2; Na+; Electrochemical behavior; Aqueous electrolyte
资金
- National Basic Research Program of China [2007CB209702]
- Alexander von Humboldt Foundation
A new cheap asymmetric supercapacitor based on activated carbon (AC) and NaMnO2 as electrodes and aqueous Na2SO4 solution as electrolyte was assembled. It shows an energy density of 19.5 Wh kg(-1) at a power density of 130 W kg-1 based on the total mass of the active electrode materials and an excellent cycling behavior. This asymmetric aqueous AC//NaMnO2 capacitor is promising for practical applications due to its low price, easy preparation of NaMnO2 and friendliness to environment. (C) 2009 Elsevier B.V. All rights reserved.
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