Manufacturing method of porous active carbon, manufacturing method of supercapacitor electrode using the porous active carbon and supercapacitor using the supercapacitor electrode

摘要

The present invention provides a step of preparing a lignocellulosic biomass, and _{after mixing the lignocellulosic biomass and water (H 2} O), a _{temperature higher than the boiling point of the water (H 2} O) and a pressure higher than atmospheric pressure Performing hydrothermal treatment by heating at, and selectively separating the solid biomass component from the hydrothermal treatment result containing the solid biomass component and the liquid hydrolysis product after the hydrothermal treatment, and selectively separating the solid biomass component from the hydrolysis product. A method for producing porous activated carbon, comprising: carbonizing a mass component in an inert gas atmosphere and immersing the carbonized product in an alkaline solution and performing activation treatment in an inert gas atmosphere, a supercapacitor using the porous activated carbon It relates to a method of manufacturing an electrode and a supercapacitor using the supercapacitor electrode. _{According to the present invention, since hydrothermal treatment is performed using water (H 2} O) without using an acid catalyst, it is environmentally friendly compared to chemical pretreatment, and activated carbon having a high specific surface area and void volume can be prepared.