Electric Double Layer Capacitor is electrochemical capacitors which energy storage predominant is achieved by Double-layer capacitance. Double-layer capacitance ? electrostatic storage of the electrical energy achieved by separation of charge in a Helmholtz double layer is at the interface between the surface of a conductor electrode and an electrolytic solution electrolyte.
The Electrical Double-Layer Capacitor (EDLC) contains no conventional dielectric. Instead, an electrolyte (solid or liquid) is filled between two electrodes. In EDLC, an electrical condition called ?electrical double layer,? which is formed between the electrodes and electrolyte.
Manufacturers of EDLC are mainly in America, Japan and Korea, which occupied more than 70% of production in total.