A pseudo supercapacitor is part of an electrochemical capacitor and forms with an electric double-layer capacitor (EDLC) to create a supercapacitor. Pseudocapacitance and double-layer capacitance add up to a common inseparable capacitance value of a supercapacitor. The pseudo supercapacitor is different from EDLC's because the faradaic-redox reactions happen. They store energy in both physical and chemical energy forms. This is accomplished through electrosorption, reduction-oxidation reactions (redox reactions), and intercalation processes, termed pseudocapacitance. Pseudocapacitance is accompanied by an electron charge transfer between electrolytes and electrodes from desolvated and adsorbed ions. One electron per charge unit is involved. The adsorbed ion has no chemical reaction with the atoms of the electrode (no chemical bonds arise) since only a charge transfer takes place. These reactions allow the Pseudo-Supercapacitor to have a higher energy density than supercapacitors, as shown in Figure .