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    • 3. 发明公开
    • ALL-VANADIUM REDOX FLOW BATTERY AND OPERATION METHOD THEREOF
    • VANADIUM REDOX-DURCHFLUSSBATTERIE UND BETRIEBSVERFAHRENDAFÜR
    • EP3024080A4
    • 2017-03-22
    • EP14825952
    • 2014-07-15
    • DALIAN RONGKE POWER CO LTD
    • GAO XINLIANGZHANG HUAMINWANG XIAOLILIU RUONANLI YINGZHAO YELONGLIN ZEQING
    • H01M8/18
    • H01M8/188Y02E60/528
    • An all-vanadium redox flow battery and an operation method thereof, which belong to the field of flow batteries. The all-vanadium redox flow battery comprises a positive electrolyte and a negative electrolyte. A total vanadium ratio of the positive electrolyte and the negative electrolyte is maintained at the following ratio: positive electrolyte: negative electrolyte =1:1.5-1:1.2. Both the positive electrolyte and negative electrolyte comprise additives, the concentration of the additives being 0.01mol/L-0.5mol/L. the additive is at least one selected from sulfuric acid, sulfate, phosphoric acid, phosphate, pyrophosphate, and polyphosphate. The all-vanadium redox flow battery can operate with high-energy-density, and can also significantly reduce the irreversible discharge capacity attenuation caused by a hydrogen evolution side-reaction.
    • 属于流动电池领域的全钒氧化还原液电池及其操作方法。 全钒氧化还原液流电池包括正电解质和负电解质。 正电解质和负电解质的总钒比保持在以下比例:正电解质:负电解质= 1:1.5-1:1.2。 正电解质和负电解质都包含添加剂,添加剂的浓度为0.01mol / L-0.5mol / L。 添加剂是选自硫酸,硫酸盐,磷酸,磷酸盐,焦磷酸盐和多磷酸盐中的至少一种。 全钒氧化还原液流电池可以以高能量密度工作,并且还可以显着降低由析氢反应引起的不可逆放电容量衰减。