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ARTICLE
Study of Galvanic Charging-Discharging Properties of Graphene Nanoplatelets Incorporated Epoxy-Carbon Fabric Composites
HADIMANI SHIVAKUMAR1, GURUMURTHY G. D.1, BOMMEGOWDA K. B.2, S. PARAMESHWARA3
1
Department of Electronics and Communication Engineering, Kalpataru Institute of
Technology, Tiptur, Tumkuru, Karnataka, India.
2
NITTE (Deemed to be University), Department of Electronics and Communication
Engineering, NMAM Institute of Technology, Nitte-574110, Karnataka, India.
3 Department of Electronics and Communication Engineering, The National Institute of
Engineering, Mysuru, Karnataka, India.
* Corresponding Author: e-mail:
Journal of Polymer Materials 2023, 40(1-2), 93-103. https://doi.org/10.32381/JPM.2023.40.1-2.8
Abstract
Polymer composites are increasing in demand in energy storage applications including in the
electronic as well as electrical industries due to the ease of processing of these materials with
associated advantages like light weight, corrosion resistance, and high mechanical strength. In
this investigation, efforts are made to enhance the charging and discharging properties of
epoxy/carbon fabric composite by the addition of graphene nanoplatelets (GNPs) into the epoxy/
carbon matrix. The performance of the composites with graphene platelets of 0.5 to 5 wt. % in
epoxy were characterized and 1wt.% percolation threshold was observed poor performance in
gravimetric charge and discharge characteristics were observed. Based on the percolation
threshold Epoxy-Carbon fabric (EC) composites and Epoxy-Carbon fabric with 1 wt. % of GNP
(ECG1) composites were fabricated using a vacuum-assisted resin transfer molding technique.
The electrochemical performance was studied using the Cyclovoltammetry test and 0.1 M of
Na
2SO
4 as a supporting electrolyte. The Galvanostatic Charge-Discharge characteristics were
carried-out for EC and ECG1 at a scan rate of 80 sec, 300 sec, 4000 sec with 2 runs and 8 runs.
The composite EC didn’t not show GCD characteristics, but the symmetry of charge-discharge
characteristics observed for ECG1 and same are discussed in this paper. These highly effective, and excellent characteristics demonstrate that Epoxy-GNP-CF composites may be promising
composites for practical energy storage applications.
Keywords
Cite This Article
SHIVAKUMAR, H., D., G. G., B., B. K., PARAMESHWARA, S. (2023). Study of Galvanic Charging-Discharging Properties of Graphene Nanoplatelets Incorporated Epoxy-Carbon Fabric Composites.
Journal of Polymer Materials, 40(1-2), 93–103. https://doi.org/10.32381/JPM.2023.40.1-2.8