Publication: V2O5 encapsulated MWCNTs in 2D surface architecture: Complete solid-state bendable highly stabilized energy efficient supercapacitor device
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2017-03-03
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Nature Research
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Abstract
A simple and scalable approach has been reported for V2O5 encapsulation over interconnected multi-walled carbon nanotubes (MWCNTs) network using chemical bath deposition method. Chemically synthesized V2O5/MWCNTs electrode exhibited excellent charge-discharge capability with extraordinary cycling retention of 93% over 4000 cycles in liquid-electrolyte. Electrochemical investigations have been performed to evaluate the origin of capacitive behavior from dual contribution of surface-controlled and diffusion-controlled charge components. Furthermore, a complete flexible solid-state, flexible symmetric supercapacitor (FSS-SSC) device was assembled with V2O5/MWCNTs electrodes which yield remarkable values of specific power and energy densities along with enhanced cyclic stability over liquid configuration. As a practical demonstration, the constructed device was used to lit the VNIT acronym assembled using 21 LEDs.
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Structured vanadium-oxide, Thin-films, Electrochemical properties, Capacitance, Temperature, Electrodes, MNO2, Composites, Morphology, Density
Bibliographic citation
Pandit, B., Dubal, D. P., Gómez-Romero, P., Kale, B. B. & Sankapal, B. R. (2017). V2O5 encapsulated MWCNTs in 2D surface architecture: Complete solid-state bendable highly stabilized energy efficient supercapacitor device. Scientific Reports, 7, 43430.