A flexible graphene electrode for a high-performance flexible supercapacitor a large-area graphene-based electrode
DOI:
https://doi.org/10.56714/bjrs.52.1.15Keywords:
Supercapacitor, roll-to-roll, flexibilityAbstract
In this report, graphene (G) layers were synthesized onto the top of Al substrate creating electrode for supercapacitor (SC). The obtained G@Al was used as flexible electrodes, and it shows a good stability with consist cycle voltammetry alone with good energy and power densities. The Highest Specific capacitance at flat conditions is about 17.629 Fg-1 and this value not dropped down more than 9.4% after bending the device with angle 30, 60, 90, 120, 150, and 180. The G@Al showed a good stability and it returns 93.5% from initial one after 1000 cycles. The maximum ED and PD were found to be as high as 5.5Wh/kg and.5.73kW/kg respectively, The EIS showed a good electrochemical performance and the ebullient circuit showed four resistance and CPE along with W element. Advancing the obtained SC by creating large area graphene based flexible supercapacitor device which showed a higher specific capacitance of 123.774 Fg⁻¹ along with outstanding flexibility
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