Electrochemical energy storage systems and methods featuring large negative half-cell potentials
    1.
    发明授权
    Electrochemical energy storage systems and methods featuring large negative half-cell potentials 有权
    电化学储能系统和方法具有大的负半电池电位

    公开(公告)号:US09559374B2

    公开(公告)日:2017-01-31

    申请号:US13949486

    申请日:2013-07-24

    IPC分类号: H01M8/18 H01M8/20 H02J7/00

    摘要: The invention concerns flow batteries comprising: a first half-cell comprising: (i) a first aqueous electrolyte comprising a first redox active material; and a first carbon electrode in contact with the first aqueous electrolyte; (ii) a second half-cell comprising: a second aqueous electrolyte comprising a second redox active material; and a second carbon electrode in contact with the second aqueous electrolyte; and (iii) a separator disposed between the first half-cell and the second half-cell; the first half-cell having a half-cell potential equal to or more negative than about −0.3 V with respect to a reversible hydrogen electrode; and the first aqueous electrolyte having a pH in a range of from about 8 to about 13, wherein the flow battery is capable of operating or is operating at a current density at least about 25 mA/cm2.

    摘要翻译: 本发明涉及流动电池,包括:第一半电池,包括:(i)第一含水电解质,其包含第一氧化还原活性材料; 和与第一含水电解质接触的第一碳电极; (ii)第二半电池,包括:包含第二氧化还原活性材料的第二含水电解质; 和与第二含水电解质接触的第二碳电极; 和(iii)设置在第一半电池和第二半电池之间的隔板; 所述第一半电池相对于可逆氢电极具有等于或大于约-0.3V的半电池电位; 并且所述第一含水电解质的pH在约8至约13的范围内,其中所述流动电池能够以至少约25mA / cm 2的电流密度操作或正在其操作。