This research deals with carbon electrodes made from date palm midrib biomass by varying physical activation temperatures of 700°C, 800°C, and 900°C with sample codes PK-700, PK-800, and PK-900. Electrodes are made with several stages such as pre-carbonization, chemical activation with KOH activators, carbonization at 600 °C with N2 and physical activation with CO2 . The highest density val…