期刊
NANOSCIENCE AND NANOTECHNOLOGY LETTERS
卷 4, 期 7, 页码 724-728出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/nnl.2012.1377
关键词
Hybrid Electrochemical Capacitor; Li-Ion Battery; alpha-MnO2 Nanorods; Activated Carbon; Hydrothermal Route
资金
- Competitive Research Programme (CRP) of the National Research Foundation (NRF, Singapore) [NRF-CRP4-2008-03]
Hollondite type alpha-MnO2 nanorods are prepared by hydrothermal route at 160 degrees C for 8 h. The structural and morphological properties are examined by X-ray diffraction, BET surface area, scanning electron microscopy and high resolution transmission electron microscopy. Half-cells (Li/alpha-MnO2) are fabricated to study the Li-cycling behavior in both galvanostaic and potentiostatic modes. The alpha-MnO2 delivers a stable reversible capacity of similar to 80 mA h g(-1) at constant current 50 mA g(-1) up to 50 cycles when cycled between 1.5-3.8 V versus Li. The hybrid electrochemical capacitor is fabricated using alpha-MnO2 nanorods (as anode) and activated carbon (as cathode) in non-aqueous medium and cycled between 0-3 V. The hybrid electrochemical capacitor exhibited a stable specific discharge capacitance of 28 F g(-1) at high current (60 mA g(-1)). Further, hybrid electrochemical capacitor displayed a maximum energy and power densities of 9 W h kg(-1) and 87 W kg(-1), respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据