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Enhanced Performance of a Supercapacitor by Addition of Turbostratic Fractal Graphene to an Activated Carbon Electrode
Maithri Dissanayake1
Charlie Karunaratne1
A. V. R. S. Koswaththa2
S. G. S. M. Nawarathna2
M. I. U. Weerasinghe3
G. R. A. Kumara3
Ranjith Divigalpitiya4, *
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Submitted: 19 Nov 2024 | Revised: 24 Dec 2024 | Accepted: 8 Feb 2025 | Published: 24 Mar 2025

Abstract

This research explores the enhancement of supercapacitor performance through the incorporation of a new form of turbostratic graphene (Fractal Graphene, FGA-1) into activated carbon (AC) electrodes. By combining FGA-1 with AC, the electrodes exhibit improved electrical conductivity and enhanced electrolyte diffusion, leading to superior charge storage capability. Material characterization confirms that the FGA-1–AC composite forms a synergistic structure, facilitating better interaction with the electrolyte. The composite electrodes demonstrate significant improvements in specific capacitance compared to AC-only counterparts. Enhanced wettability and optimized diffusion rates were identified as key factors contributing to these improvements. The findings highlight the potential of FGA-1 as an additive for improving the efficiency of carbon-based supercapacitors, providing a foundation for high-performance energy storage solutions suitable for a broad range of applications.

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Dissanayake, M., Karunaratne, C., Koswaththa, A. V. R. S., Nawarathna, S. G. S. M., Weerasinghe, M. I. U., Kumara, G. R. A., & Divigalpitiya, R. (2025). Enhanced Performance of a Supercapacitor by Addition of Turbostratic Fractal Graphene to an Activated Carbon Electrode. Graphene Innovation and Technology, 1(1), 2. https://www.sciltp.com/journals/git/articles/2504000514
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