ELECTRODE MATERIAL FOR ELECTRIC CAPACITOR, ITS MANUFACTURING METHOD, AND ELECTRIC SUPERCAPACITOR Russian patent published in 2011 - IPC H01G9/58 H01G9/155 

FIELD: electricity.

SUBSTANCE: electrode material has metal-coated active carbon base consisting of active carbon 70-90%, electron-conducting additive 5-20%, and polymer binding agent with organic solvent 5-10%. Electron-conducting additive consists of multi-wall carbon nanotubes 2 mcm long and with outer diameter of 15-40 nm and/or technical carbon with particle size of 13-120 nm. In order to obtain electrode material, the above mixture is subject prior to condensation to fibrillisation at temperature of 50°C. Then, active carbon base is formed and heat treated at 100°C with further metal coating. Electric supercapacitor includes electrodes made from electrode material.

EFFECT: higher specific electric capacity of electrode material in non-aqueous electrolyte; lower inner resistance of electrode material; higher mechanical strength of electrode material.

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