期刊
JOURNAL OF ENERGY CHEMISTRY
卷 25, 期 3, 页码 463-471出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jechem.2016.01.020
关键词
MnO2 thin film; Polymer gel electrolyte; Flexible-all-solid-state supercapacitors
资金
- DAE-BRNS, BARC Mumbai, India [2012/34/67/BRNS/2911]
- UGC New Delhi
The demand of microelectronic devices postulated high energetic flexible energy storage devices. Flexible solid state supercapacitor is flawless possible candidate to fulfill the requirement of microelectronic devices. This investigation provides practical evidence of the use of flexible solid state supercapacitors based on MnO2 electrodes with polyvinylpyrrolidone (PVP)-LiClO4 gel electrolyte. Initially, different acid mediated growths of MnO2 have been carried. Later, the electrochemical performances of MnO2 electrodes have been carried out. Impressively, the fabricated symmetric flexible solid state supercapacitor (FSS-SC) device demonstrates the highest operating potential window of 1.6V with extended cycling stability. Moreover, the cell exhibits high energy density of 23 Wh/kg at power density of 1.9 kW/kg. It is interesting to note that the device shows excellent flexibility upon bending at angle of 180 degrees for number of times. These results clearly evidenced those symmetric FSS-SC devices based on MnO2 electrodes are promising energy storage devices for microelectronic applications. (C) 2016 Science Press and Dalian Institute of Chemical Physics. All rights reserved.
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