METHOD FOR MANUFACTURING CARBON FELT FOR ELECTRODE OF VANADIUM REDOX FLOW BATTERY, CARBON FELT MANUFACTURED THEREBY, AND VANADIUM REDOX FLOW BATTERY COMPRISING SAME

The present invention relates to a method for manufacturing carbon felt for an electrode of a vanadium redox flow battery, carbon felt manufactured thereby, and a vanadium redox flow battery comprising same, and the purpose thereof is to provide a method for manufacturing carbon felt for an electrode of a vanadium redox flow battery, which can improve the performance of a vanadium redox flow battery by introducing a functional group to the surface of carbon felt. The method for manufacturing carbon felt for an electrode of a vanadium redox flow battery, according to the present invention, comprises the steps of: immersing in an acidic solution and ultrasonicating carbon felt; hydrothermal synthesis by mixing the carbon felt with polyethylene glycol so that a functional group containing oxygen is bonded to the surface of the carbon felt; drying the carbon felt to which the functional group is bonded; and thermally treating the carbon felt to which the functional group is bonded. La présente invention concerne un procédé de fabrication de feutre de carbone pour une électrode d'une batterie redox vanadium, un feutre de carbone ainsi fabriqué, et une batterie redox vanadium le comprenant. L'objectif de l'invention est de permettre d'obtenir un procédé de fabrication de feutre de carbone pour une électrode d'une batterie redox vanadium, qui peut améliorer les performances d'une batterie redox vanadium en introduisant un groupe fonctionnel à la surface du feutre de carbone. Le procédé de fabrication de feutre de carbone pour une électrode d'une batterie redox vanadium, selon la présente invention, comprend les étapes consistant en : l'immersion dans une solution acide et l'ultrasonication d'un feutre de carbone ; la synthèse hydrothermique par mélange du feutre de carbone avec du polyéthylène glycol de sorte qu'un groupe fonctionnel contenant de l'oxygène est lié à la surface du feutre de carbone ; le séchage du feutre de carbone auquel est lié le groupe fonctionnel ; et le traitement thermique du feutre de carbone auquel est lié le groupe fonctionnel. 본 발명은 바나듐 레독스 흐름 전지의 전극용 카본펠트의 제조방법, 이에 따라 제조한 카본펠트, 및 이를 포함하는 바나듐 레독스 흐름 전지에 관한 것으로, 카본펠트의 표면에 작용기를 도입하여 바나듐 레독스 흐름 전지의 성능을 향상시킬 수 있는 바나듐 레독스 흐름 전지의 전극용 카본펠트의 제조방법을 제공하기 위한 것이다. 본 발명에 따른 바나듐 레독스 흐름 전지의 전극용 카본펠트의 제조방법은 카본펠트를 산성용액에 침지하고 초음파 처리하는 단계; 상기 카본펠트의 표면에 산소를 포함하는 관능기가 결합되도록 상기 카본펠트 및 폴리에틸렌글리콜(polyethylen glycol)을 혼합하여 수열합성하는 단계; 상기 관능기가 결합된 카본펠트를 건조하는 단계; 및 상기 관능기가 결합된 카본펠트를 열처리하는 단계;를 포함한다.