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Updated: Apr 12, 2026
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Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
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Ultrathin Printable Graphene Supercapacitors with AC Line-Filtering Performance
Zhong-Shuai Wu1, Zhaoyang Liu1, Khaled Parvez1
1Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, Germany.
Advanced Materials (Deerfield Beach, Fla.)
|May 15, 2015
Summary
Researchers developed ultrathin printable graphene supercapacitors using solution-processed films. These devices achieve remarkable volumetric capacitance and ultrahigh scan rates for advanced energy storage applications.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Graphene-based supercapacitors offer high energy density.
- Developing flexible and printable energy storage remains a challenge.
Purpose of the Study:
- To demonstrate ultrathin printable graphene supercapacitors.
- To achieve high volumetric capacitance and scan rates in flexible devices.
Main Methods:
- Solution-processed electrochemically exfoliated graphene hybrid films.
- Utilized an ultrathin poly(ethylene terephthalate) substrate.
Main Results:
- Achieved an unprecedented volumetric capacitance of 348 F cm⁻³.
- Demonstrated an ultrahigh scan rate of 2000 V s⁻¹.
- Exhibited effective AC line-filtering performance.
Conclusions:
- Ultrathin printable graphene supercapacitors are feasible.
- The developed devices show promise for high-performance flexible electronics.
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