Method for producing surface-modified carbon felt electrode for redox flow secondary cell by metal oxide and a carbon felt electrode by the method

摘要

PURPOSE: A manufacturing method of a carbon-felt electrode surface-modified by metal oxide capable of increasing energy efficiency of a redox-flow secondary battery and to reduce treatment time of surface of a carbon felt. CONSTITUTION: A manufacturing method of a surface-modified carbon-felt electrode comprises: a step(S10) of inserting a carbon felt, metal acetate and water into an autoclave; a step(S20) of operating the autoclave by setting the temperature and operation time of the autoclave; and a step(S30) of obtaining a carbon felt surface-modified by metal oxide after the operation time in set-temperature condition of the autoclave. The carbon felt is one of a polyacrylonitrile-based or a rayon-based. [Reference numerals] (S10) Step of inserting a carbon felt, metal acetate and water into an autoclave; (S20) Step of operating the autoclave by setting the temperature and operation time of the autoclave; (S30) Step of obtaining a carbon felt surface-modified by metal oxide after the operation time in set-temperature condition of the autoclave