CARBON COMPOSITION FOR ELECTRODE OF SUPERCAPACITOR ELEMENT, THE ELECTRODE, METHOD OF ITS PRODUCTION AND ELEMENT CONTAINING IT Russian patent published in 2017 - IPC C25B11/12 H01G11/32 

FIELD: chemistry.

SUBSTANCE: invention relates to carbonaceous composition suitable for production of supercapacitor electrode in contact with aqueous ionic electrolyte, wherein the composition is based on carbon powder capable of storing and releasing electric power and includes a hydrophilic binder system. Said system comprises: according to mass fraction in composition from 3% to 10%, at least one first cross-linked polymer having average molecular weight Mn greater than 1000 g/mol and containing alcohol groups, and in accordance with mass fraction in composition from 0.3% to 3%, at least one second polymer, at least one acid having pKa from 0 to 6 and average molecular weight Mn is greater than 500 g/mol, wherein said at least one first polymer is crosslinked in presence of said, at least one second polymer. The invention also relates to porous electrode, method for producing the electrode and supercapacitor element.

EFFECT: ensure energy efficiency by optimizing capacitance and potential of the supercapacitor.

17 cl, 5 tbl, 10 ex