The growing energy demand worldwide in pushing researchers for always innovative and better energy storage solutions; among the many and different kind of devices which can collect, store and release energy in form of electrical current, a particular place is occupied by supercapacitors. An electrochemical capacitors or supercapacitor, is a relatively new energy storage device which shows an intermediate behaviour between a capacitor and a battery in terms of energy and power densities. The typical capacitor plate structure is substituted by a complex nanostructured pattern which allows to hugely increase the active surface while keeping low the volume occupied from the electrodes; this new structure accumulates ions which move in an electrolyte, while in a common capacitor just charges accumulate between plate and insulator.