“…Some of the commercially available supercapacitors are examples of commercial supercapacitors from different manufacturers such as Yanasko, Panasonic, Maxwell, Asahi Glass, Vina Tech, JSR Miaro, Nesscap, Fuji, Loxus, Batscap, Skeleton, and APower. [3][4][5][6] However, still researchers in numerous universities and companies are actively at work to improve the electrochemical properties of supercapacitors such as specic energy, specic power, number of cycles, and wide voltage window. The major commercial electrode material is carbon based, which is widely used directly or by modifying the electrode material.…”