ELECTROLYTE FOR REDOX FLOW BATTERY AND REDOX FLOW BATTERY COMPRISING SAME

• Main Authors: JEONG, Jin Kyo, SEO, Dong Kyun, KIM, Tae Eon, KIM, Dae Sik, KIM, Jin Hu, JUNG, Hyun Jin, CHOI, Won Seok, BAE, Su Yeon
• Format: Patent
• Language: English; French; Korean
• Published: 31.05.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to an electrolyte for a redox flow battery comprising a zinc/halide (Zn/halide) redox couple and comprising a relatively low concentration of ions of a metal compared with the concentration of zinc (Zn2+) in the electrolyte, the effective reduction potential of the metal being lower than the standard reduction potential (-0.76 V) of zinc and relatively higher than the standard reduction potential (-0.83 V) in a water decomposition reaction, and to a redox flow battery comprising the electrolyte. La présente invention concerne un électrolyte pour une batterie rédox comprenant un couple rédox zinc/halogénure (Zn/halogénure) et comprenant une concentration relativement faible en ions d'un métal par rapport à la concentration en zinc (Zn2+) dans l'électrolyte, le potentiel de réduction réel du métal étant inférieur au potentiel de réduction standard (-0,76 V) du zinc et relativement supérieur au potentiel de réduction standard (-0,83 V) dans une réaction de décomposition d'eau, et une batterie à rédox comprenant l'électrolyte. 본 발명은 아연 /할라이드 (Zn/halide) 레독스 커플을 포함하고， 전해액 내 아연 농도 (ZN2+) 대비 상대적으로 적은 농도의 금속 이온을 포함하며, 상기 금속의 유효환원전위는 아연의 표준환원전위 (-0.76V) 대비 상대적으로 낮고， 물분해 반응의 표준환원전위 (-0.83V) 대비 상대적으로 높은 레독스 흐름전지용 전해액 및 이를 포함하는 레독스 흐름전지에 관한 것이다.