MANUFACTURING METHOD OF ACTIVATED CARBON FIBER FOR SUPERCAPACITOR ELECTRODE FROM POLYACRILONITRILE FIBER

摘要

The invention to provide a method for preparing the enhanced activated carbon fiber storage capacity containing medium ball large and a specific surface area of ​​from polyacrylonitrile to be used as electrode material for supercapacitors, through the simple chemical and physical activation treatment The purpose.; Supercapacitor electrode active carbon fiber production process for a fiber with a nitrile polyacrylonitrile as a raw material according to the present invention for achieving this object is achieved by contact of the raw material fibers with the air for 3-6 hours at a temperature of 240~250 ℃ stabilization comprising steps of, depositing a material that stabilizes the fiber in a solution of 1M KOH for 1-4 hours, drying the above-mentioned material fiber is immersed in a solution of 1M KOH, a dry milling method comprising the raw material fiber, the pulverized the method comprising the raw material fiber deposition for 4-20 hours in a solution of 2M KOH, drying the above-mentioned material fiber is immersed in a solution of 2M KOH, 20~40 the dried fiber in the raw material in an inert gas atmosphere 700~850 ℃ It characterized by a minute made of an heating by heat treatment.; Also it may include the step of contacting with water vapor at 5-10 minutes for the raw material fibers heat-treated in an inert gas atmosphere 700~850 ℃.