Flexible solid-state symmetric supercapacitors based on MnO2 nanofilms with high rate capability and long cyclability
Flexible solid-state symmetric supercapacitors based on MnO2 nanofilms with high rate capability and long cyclability
复制标题
基于MnO2纳米膜的柔性固态对称超级电容器，具有高倍率性能和长循环性能
DOI：
10.1063/1.4820353
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发表时间：
2013-08
期刊：
影响因子：
1.6
通讯作者：
Liu, Jinping
中科院分区：
文献类型：
--
作者：
Wu, Lingxia;Li, Ruizhi;Guo, Junling;Zhou, Cheng;Zhang, Wenpei;Wang, Chong;Huang, Yu;Li, Yuanyuan;Liu, Jinping
Flexible solid-state symmetric supercapacitor was fabricated using MnO2 nanofilms growing directly on carbon cloth as the electrodes and PVA/H3PO4 gel as the electrolyte/separator. The device can be operated at a stable cell-voltage up to 1.4 V, obviously larger than that of conventional solid-state symmetric supercapacitors (≤1 V). It exhibited excellent rate capability with a scan rate as high as 20 V s−1 and a long cyclability (∼60000 cycles) even under severe mechanical deformation. The charge storage mechanism at different scan rates was also quantitatively analyzed.
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