Abstract: The invention relates to the field of electrochemical capacitors and, in particular, electrochemical supercapacitors. More specifically, the invention is directed towards the production of an electrochemical supercapacitor with an electric double layer, in which the energy accumulators and electrodes consist exclusively of materials based on various forms of carbon. The carbon supercapacitor comprises: a hermetic housing; substrate electrodes made from a carbon-containing material and provided with discrete, highly porous accumulation layers; separators made from a porous dielectric material in the form of a film, which separate the substrate electrodes; current collectors for the above-mentioned discrete, highly porous accumulation layers; and also external switching electrodes in the form of strips. The substrate electrode accumulation layers, the separators, the electric current collectors and the switching electrodes are made from carbon material and/or carbon-containing material.