Anakis, Ramadhani Putri2021-08-242021-08-242020-10wahyu sari yenihttps://repository.unri.ac.id/handle/123456789/10139The carbon electrode from avocado seed biomass material has been successfully made. The manufacture of carbon electrodes begins with sample preparation, precarbonization processes, crushing using a mortar and ball milling, sieving carbon powder with a size of 53 μm. The pre-carbonized powder is chemically activated using a KOH 0.1 M activator and continued by pellet forming by using Hydraulic Press. The carbonization process is carried out at a temperature of 600˚C using N2 gas and physical activation with temperature variations, namely 700˚C, 800˚C and 900˚C using CO2 gas. The Shrinkage of carbon mass was 24,07% and resulted in carbon powder. The shrinkage density values of each carbon electrode for physical activation temperatures of 700˚C, 800˚C, and 900˚C were 25,52%, 27,56%, and 37,42%.The highest density shrinkage value occurred at a temperature of 900 at 31.76%.enAvocado SeedsActivated CarbonPhysical Activation TemperatureElectrodesArticle