V2O5 encapsulated MWCNTs in 2D surface architecture: Complete solid-state bendable highly stabilized energy efficient supercapacitor device Articles uri icon

authors

  • PANDIT, BIDHAN
  • Dubal, Deepak P.
  • Gomez Romero, Pedro
  • Kale, Bharat B.
  • Sankapal, Babasaheb R.

publication date

  • January 2017

volume

  • 7

International Standard Serial Number (ISSN)

  • 2045-2322

abstract

  • (copyright) The Author(s) 2017.A simple and scalable approach has been reported for 2O5 encapsulation over interconnected multi-walled carbon nanotubes (MWCNTs) network using chemical bath deposition method. Chemically synthesized 2O5/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 2O5/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 LED's.