Fiber electrode using surface-polymerization and surface modification for the same

The present invention relates to a metal nonwoven electrode having the surface polymerized dopamine monomers and a surface modifying method therefor, and has an effect of coating the surface of a metal fiber inside an electrode to a dopamine polymer layer and further to aqueous slurry. The metal nonwoven electrode of the present invention is formed in a three-dimensional network structure, and comprises: at least one metal fiber surface-treated with a hydrophilic organic solvent; a gap formed between the metal fibers; and the dopamine polymer layer coated on the surface of the metal fiber in contact with the gap. 본 발명의 도파민계 단량체가 표면중합된 금속 부직포 전극 및 이를 위한 표면개질 방법은 전극 내부의 금속섬유의 표면까지도 도파민계 중합체층, 나아가 수계 슬러리까지 코팅되는 효과가 있다.