Porous particles and manufacturing process of interconnected 3D graphene as supercapacitor electrode active material

摘要

(A) a monolithic three-dimensional graphene structure comprising a plurality of pores and a continuous three-dimensional network of graphene pore walls comprising a continuous or natural interconnected graphene ligament of 1 to 20 graphene surfaces of carbon atoms With an activator selected from acids, bases, or salts, MCMB particles at a temperature of 100 ° C. to 1200 ° C. for a period of 0.5-24 hours sufficient to produce a plurality of porous particles having Subjecting to chemical activation; (b) producing a suspension containing the plurality of porous particles, an optional conductive additive, and an optional resin binder in a liquid medium; (C) depositing the suspension on at least a primary surface of the current collector to form a wetting layer, and removing the liquid medium from the wetting layer to form a supercapacitor electrode. The method for producing par capacitor electrode.