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Related Experiment Video

Updated: May 9, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
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Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

One-step spray processing of high power all-solid-state supercapacitors.

Chun Huang1, Patrick S Grant

  • 1Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, UK. ann.huang@materials.ox.ac.uk

Scientific Reports
|August 10, 2013
PubMed
Summary
This summary is machine-generated.

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A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...

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See all related articles

Flexible solid-state supercapacitors were fabricated using multi-wall carbon nanotubes (MWNTs) and Nafion. Hybrid electrodes improved ion mobility and electric double-layer (EDL) capacitance, achieving high power densities for advanced energy storage.

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Flexible solid-state supercapacitors are crucial for portable electronics.
  • Developing efficient electrodes with high ion mobility is a key challenge.
  • Multi-wall carbon nanotubes (MWNTs) offer promising properties for energy storage.

Purpose of the Study:

  • To fabricate flexible solid-state supercapacitors using MWNTs.
  • To investigate the effect of ionomer incorporation on electrode performance.
  • To evaluate the energy and power densities of the developed supercapacitors.

Main Methods:

  • Aqueous suspensions of MWNTs in H2SO4 were sprayed onto Nafion membranes.
  • Fabrication of supercapacitors with MWNT-only and MWNT + ionomer hybrid electrodes.

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Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

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Related Experiment Videos

Last Updated: May 9, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors
10:57

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

Published on: November 30, 2021

  • Electrochemical characterization including capacitance, energy density, and power density measurements.

    • Main Results:

    • MWNT-only electrodes showed capacitance of 57 F g(-1) at 2 mV s(-1) but limited H(+) mobility.
    • MWNT + ionomer hybrid electrodes exhibited enhanced H(+) mobility and higher EDL capacitance (145 F g(-1) at 2 mV s(-1)).
    • Supercapacitors achieved high energy density (12.9 Wh kg(-1)) and power density (up to 9.4 kW kg(-1)), the highest reported for all-solid-state EDL supercapacitors.

    Conclusions:

    • MWNT + ionomer hybrid electrodes significantly enhance performance in flexible solid-state supercapacitors.
    • The developed supercapacitors demonstrate potential for high-performance energy storage applications.
    • This fabrication method offers a scalable route to advanced flexible energy storage devices.