In this study, the applicability of supercapacitor of the hydrous ruthenium oxide with or without carbon nanotube additive was examined. The cathodic deposition was used which was fast and easy to prepare the electrode of supercapacitor. The electrical ca In this study, the applicability of supercapacitor of the hydrous ruthenium oxide with or without carbon nanotube additive was examined. The cathodic deposition was used which was fast and easy to prepare the electrode of supercapacitor. The electrical ca