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

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Ultrathin planar graphene supercapacitors.

Jung Joon Yoo¹, Kaushik Balakrishnan, Jingsong Huang

¹Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas, United States.

|March 9, 2011

Summary

Researchers developed ultrathin supercapacitors using graphene electrodes. This in-plane fabrication approach enhances energy storage by utilizing graphene surfaces and edges for high specific capacities.

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Area of Science:

Materials Science
Electrochemistry
Nanotechnology

Background:

Atomically thin materials like graphene enable novel thin-film energy storage devices.
Graphene's unique properties offer potential for high-performance energy storage solutions.

Purpose of the Study:

To report an "in-plane" fabrication method for ultrathin supercapacitors.
To investigate the energy storage capabilities of graphene and reduced graphene oxide electrodes in thin-film devices.

Main Methods:

Fabrication of ultrathin supercapacitors using pristine graphene and multilayer reduced graphene oxide electrodes.
Electrode design exploiting the surface area and edge effects of graphene layers.
Performance evaluation through experimental measurements and model calculations.

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Last Updated: Jun 3, 2026

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

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

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Main Results:

Achieved specific capacities up to 80 μFcm⁻² for devices with 1-2 graphene layers.
Observed significantly higher specific capacities (394 μFcm⁻²) with multilayer reduced graphene oxide electrodes.
Demonstrated efficient energy storage through an open architecture design.

Conclusions:

The in-plane fabrication approach is effective for creating high-performance ultrathin supercapacitors.
Graphene-based electrodes, particularly multilayer reduced graphene oxide, show great promise for thin-film energy storage.
These devices serve as a prototype for future thin-film energy storage applications.