Porous WO/graphene/polyester textile electrode materials with enhanced electrochemical performance for flexible solid-state supercapacitors.

J Colloid Interface Sci

College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China. Electronic address:

Published: January 2018

AI Article Synopsis

  • A porous WO/grapheme/polyester (WO/G/PT) textile electrode was developed, enhancing energy storage due to its unique 3D conductive structure.
  • The electrode features an increased electrochemically active surface area and improved ion diffusion, resulting in an impressive areal capacitance of 308.2 mF/cm².
  • An asymmetric supercapacitor (ASC) using the WO/G/PT electrode demonstrated a specific capacitance of 167.6 mF/cm² and high energy density, making it a promising option for flexible energy storage devices.

Article Abstract

In this work, a flexible and porous WO/grapheme/polyester (WO/G/PT) textile electrode was successfully prepared by in situ growing WO on the fiber surface inside G/PT composite fabrics. The unique electrode structure facilitates to enhance the energy storage performance because the 3D conductive network constructed by the G/PT increase the electron transportation rate, nanotructured WO exposed enhanced electrochemically active surface area and the hierarchically porous structure improved the electrolyte ion diffusion rate. The optimized WO/G/PT textile electrode exhibited good electrochemical performance with a high areal capacitance of 308.2mFcm at a scan rate of 2mVs and excellent cycling stability. A flexible asymmetric supercapacitor (ASC) device was further fabricated by using the WO/G/PT electrode and G/PT electrode, which exhibited a good specific capacitance of 167.6mFcm and high energy density of 60μWhcm at the power density of 2320 μWcm.

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http://dx.doi.org/10.1016/j.jcis.2017.08.103DOI Listing

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