Who knows the raw materials in supercapacitors?

Electrode materials of capacitors can be divided into two categories. One is electric double layer capacitor material, mainly carbon-based material. Its working mechanism is to use the interface between electrode and electrolyte to form an electric double layer, thus effectively storing and releasing charges. The other is pseudocapacitor material, which generates pseudocapacitor through rapid reversible chemical desorption or redox reaction to store or release electric energy. Capacitors assembled with this electrode material are generally larger than capacitors and have good cycle stability, such as hydroxides such as Ni(OH)2 and Co(OH)2, oxides such as Ruo 2 and MnO 2, and some conductive polymer materials. The flexible substrate materials mainly include (gold-plated) PET film, PI film, EVA film, fiber cloth and other bio-flexible substrates. Gel polymer electrolytes are widely used in solid electrolytes, including lithium ion gel electrolytes (PVA/LiCl, PVA/LiClO4), proton gel electrolytes (PVA/H2SO4), alkaline gel electrolytes (PEO/KOH/H2O) and other ionic gel polymer electrolytes.