Carbide-derived carbon (CDC) is a type of porous pure carbon material that is prepared by chlorination or oxidation of metal carbide precursors, which remove the metal elements from the carbides leaving the porous structure. CDC has been shown to be an advanced electrode material for electrochemical double layer supercapacitors (EDLS) bearing large specific energy and power densities, excellent compatibility with various electrolytes solutions, and a long shelf-life. In this work, we investigate the properties of the electrode materials when room temperature ionic liquids (ILs) are used as the electrolytes for the EDLS. ILs have excellent thermal stability and negligible vapor pressures which can improve the safety and longevity of the electrochemical devices. The CDC electrode materials are synthesized by the chlorination method and a newly developed electrochemical oxidation method. Pure ILs with various cations and anions, IL solutions with different solutes such as organic acids, Li⁺, Cl^-, and propylene carbonate are used in the EDLS systems. In addition to the electrochemical measurements, the morphology and structure properties of the CDC electrode are characterized by Raman spectroscopy, SEM, and XRD techniques.