Effect of variations in current collectors types on the performance of supercapacitor cell carbon electrode from biomass stalk of curly chili

Reny Hidayati, Awitdrus Awitdrus

Abstract


A study on the fabrication of carbon electrodes from curly chili stem biomass processed through a dual approach involving both chemical and physical activation methods has been succesfully conducted. The chemical activation was performed with a 0.3 M solution ZnCl2 at a temperature of 80°C with a stirring speed of 350 rpm, followed by physical activation at 900°C. The carbon electrode density was observed to decrease after the pyrolysis process. The electrochemical properties of the carbon electrodes were analyzed using cyclic voltammetry (CV) and Galvanostatic charge-discharge (GCD) methods, with a scan rate of 5 mV/s and a current density of 1 A/g. These tests were performed by varying the type of current collector, including SS 304, SS 316, and CANS. The CV and GCD analyses revealed that the SS 304 current collector provided the highest specific capacitance values, namely 56.91 F/g and 77.04 F/g, respectively. Based on the electrochemical analysis results, it is concluded that current collectors with type 304, demonstrate the best performance in carbon electrode applications for supercapacitors.

Keywords


Biomass; carbon electrode; curly chili stalk; current collector; supercapacitor

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References


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DOI: http://dx.doi.org/10.31258/jkfi.22.3.207-212

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