Manufacturing method of supercapacitor electrode material and supercapacitor electrode use the same

Abstract

A method for manufacturing a supercapacitor electrode material includes: a material preparation step, in which sodium lignosulfonate, a surfactant, and an activator are mixed to obtain a biomass material; a heat treatment step, in which the biomass material is heat-treated at 300˚C for 1 hour in an oxygen-free environment, and then heat-treated at 900˚C for 8 hours in an oxygen-free environment to obtain a carbonized material; and a washing step, in which the carbonized material is acid-washed with hydrochloric acid to adjust the pH value to 0.5, and then washed with water to adjust the pH value to above 6, thereby obtaining a biomass porous carbon material as the supercapacitor electrode material. A manufacturing method of a supercapacitor electrode material consists of: a material preparation step of mixing sodium lignin sulfonate, surfactant and activator to obtain biomass material; a heat treating step of performing a heat treatment at 300°C for 1 hour in an oxygen-free environment and a heat treatment at 900°C for 8 hours in an oxygen-free environment on the biomass material to obtain a carbonized material; and a washing step of washing the carbonized material with hydrochloric acid to adjust the pH value to 0.5 and then washing the carbonized material with water to adjust the pH value to above 6 to obtain a biomass porous carbon material as the supercapacitor electrode material.

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