KARAKTERISASI SIFAT ELEKTROKIMIA ELEKTRODA KARBON AKTIF BERBASIS LIMBAH SABUT KELAPA MUDA MENGGUNAKAN SEPARATOR MEMBRAN KULIT TELUR AYAM

Abstract

The supercapacitor is an energy storage device with an electrochemical characteristic that can provide high energy and power density. The supercapacitor cell consists of a current collector, electrode, electrolyte, and separator. This study used young coconut fiber biomass as a supercapacitor electrode, H₂SO₄ as an electrolyte, 316L stainless steel as a current collector, and chicken eggshell membrane as a separator. The fabrication of electrode carbon made from young coco fiber begins with the pre-carbonization process, chemical activation using 0.5M KOH, carbonization process using N₂ gas at a temperature of 600 °C, and physical activation using CO₂ gas at a temperature of 750 °C. Analysis of electrochemical characteristics using cyclic voltammetry method resulting in a specific capacitance value of 197.05 F/g for a scan rate of 1 mV/s, 157.215 F/g for a scan rate of 2 mV/s, and 129.42 F/g for scan rate of 5 mV/s.