METHOD AND SYSTEM FOR PREPARING VANADIUM ELECTROLYTIC SOLUTION

The present invention relates to a method and a system for preparing a vanadium electrolytic solution. The method may comprise the steps of: using an electrochemical reaction of a tetravalent vanadium solution so as to oxidize vanadium ions at an anode and reduce vanadium ions at a cathode; and meas...

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Bibliographic Details
Main Authors SEO, Dong Kyun, KIM, Tae Eon, KIM, Dae Sik
Format Patent
LanguageEnglish
French
Korean
Published 08.06.2023
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Summary:The present invention relates to a method and a system for preparing a vanadium electrolytic solution. The method may comprise the steps of: using an electrochemical reaction of a tetravalent vanadium solution so as to oxidize vanadium ions at an anode and reduce vanadium ions at a cathode; and measuring, in real time, the color difference of a vanadium electrolytic solution at the cathode, and preparing a vanadium electrolytic solution to be obtained by terminating the reaction when the measured color difference value indicates that the oxidation number of the vanadium electrolytic solution is 3.5. La présente invention concerne un procédé et un système pour préparer une solution électrolytique de vanadium. Le procédé peut comprendre les étapes consistant à : utiliser une réaction électrochimique d'une solution de vanadium tétravalent de manière à oxyder des ions de vanadium au niveau d'une anode et réduire les ions de vanadium au niveau d'une cathode ; et mesurer, en temps réel, la différence de couleur d'une solution électrolytique de vanadium au niveau de la cathode, et préparer une solution électrolytique de vanadium à obtenir en mettant fin à la réaction lorsque la valeur de différence de couleur mesurée indique que le nombre d'oxydation de la solution électrolytique de vanadium est de 3,5. 본 발명은 바나듐 전해액 제조 방법 및 시스템에 관한 것이다. 상기 방법은, 4가 바나듐 용액의 전기화학적 반응을 이용하여, 양극에서 바나듐 이온을 산화시키고, 음극에서 바나듐 이온을 환원시키는 단계; 및 상기 음극에서의 바나듐 전해액의 색차를 실시간으로 측정하되, 바나듐 전해액의 산화수가 3.5가임을 나타내는 색차값이 측정되면 반응을 종료하여 수득할 바나듐 전해액을 제조하는 단계를 포함할 수 있다.
Bibliography:Application Number: WO2022KR19018