The concept of double-layer at the interface for storing the electrical energy between the electrode and electrolyte was first described by a German Physicist, Hermann Von Helmholtz in 1853. H.I. Becker of General Electric Company in 1957, first patented the smaller electrochemical capacitor device which has specific energy close to that of a battery. However, this capacitor consisted of porous carbon electrodes by means of double-layered charge storage mechanism and was not suitable for practical implications due to the necessity of immersing the device in an electrolyte. Robert A. Rightmire of the Standard Oil Company, Ohio (SOHIO) invented the standard device that stored energy in the double layer interface design used today.