Supercapacitors are energy storage devices consisting of electrodes, electrolyte, current collectors, and separator. Supercapacitor cells have components called electrodes. In this study, the basic material used to make supercapacitor cell electrodes is young cocofiber with varians temperature of physical activation i.e. 700oC, 750oC and 800oC. The process of preparation supercapacitor cellā¦