The supercapacitor,also known as ultracapacitor or Electrical Doule-Layer Capacitor、Gold capacitor、farad capacitor.A capacitor stores energy by means of a static charge as opposed to an electrochemical reaction. Applying a voltage differential on the positive and negative plates charges the capacitor.
It is an electrochemical element, but it does not undergo chemical reactions in the process of storing energy, which is reversible, which is why supercapacitors can be repeatedly charged and discharged hundreds of thousands of times.
Pieces of the super capacitor can be seen as two non-reactive porous electrode plates, on the plate, electric, positive plate attract negative ions in the electrolyte, negative plate attract positive ions, actually formed two capacitive storage layer.The separated positive ions are near the negative plate, and the negative ions are near the positive plate.