PEMBUATAN ELEKTRODA KARBON DARI BIOMASSA TEMPURUNG KEMIRI UNTUK APLIKASI SEL SUPERKAPASITOR

Abstract

Energy storage devices are an important aspect in overcoming the energy crisis because of their renewable and environmentally friendly nature, one of the energy storage devices is supercapacitors. The supercapacitor electrodes are derived from candlenut shell biomass by going through several pre-carbonization processes, chemical activation using 0.3 M KOH activator, 600°C carbonization using N2 gas, and physical activation using CO2 gas with variations of 700°C, 800°C, and 900° C. The result of mass shrinkage of candlenut shell carbon after the precarbonization process was 24.46%. In testing the electrode density of the samples TK-700, TK-800, and TK-900, the value decreased after the carbonization and physical activation processes were carried out with values of 0.8902 gr/cm3, 0.8055 gr/cm3, and 0.9204 gr/cm3 respectively. This study shows that the temperature of 800°C is the optimum temperature to obtain a high capacitance value and candlenut shell biomass which has the potential to be used as a carbon electrode for supercapacitor cell applications.