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    Redox flow battery
    21.
    发明授权
    Redox flow battery 有权

    公开(公告)号：US09966626B2

    公开(公告)日：2018-05-08

    申请号：US15119908

    申请日：2015-02-16

    申请人： OCI COMPANY LTD.

    发明人： Ji-Eun Hong ,  Seung-Yoen Lee ,  Soo-Whan Kim ,  Hee-Chang Ye ,  Byung-Chul Kim

    IPC分类号： H01M8/18 ,  H01M8/20 ,  H01M8/02

    CPC分类号： H01M8/188 ,  H01M8/02 ,  H01M8/20 ,  Y02E60/528

    摘要： The present invention relates to a redox flow battery, and more particularly, to a redox flow battery which is charged and discharged by supplying a positive electrolyte and a negative electrolyte to a battery cell using an active material containing vanadium and a cation exchange membrane, in which the positive electrolyte and the negative electrolyte contain vanadium ions as active ions, the difference in volume between the positive electrolyte and the negative electrolyte is maintained at 10% or less, and the total concentration of anions in the negative electrolyte is higher than the total concentration of anions in the positive electrolyte, whereby the transfer of water in the battery is controlled and a change in the volume of the electrolytes is minimized.

    VANADIUM REDOX FLOW BATTERIES
    24.
    发明申请
    VANADIUM REDOX FLOW BATTERIES 审中-公开

    公开(公告)号：US20180108931A1

    公开(公告)日：2018-04-19

    申请号：US15788266

    申请日：2017-10-19

    申请人： WattJoule Corporation

    发明人： H. Frank Gibbard ,  Reinder J. Boersma

    IPC分类号： H01M8/18 ,  H01M4/90

    CPC分类号： H01M8/188 ,  C01G31/02 ,  H01M4/9041 ,  H01M2300/0005 ,  Y02E60/528

    摘要： A vanadium redox flow battery employs a single electrolyte as a starting material to be placed in equal amounts in the positive and negative electrolyte storage tanks for supporting electrolytes containing zinc and chloride ions. A supporting solution includes chloride ions and zinc ions, and a half-cell solution including vanadium ions based on an aggregate oxidation state around +3.5 is disposed in the supporting solution to form the electrolyte solution for the redox flow battery. With HCl as a supporting electrolyte, as an alternative to conventional sulfuric acid, the use of zinc provides multiple benefits in the preparation of vanadium-based electrolytes.

    Coordination compounds having redox non-innocent ligands and flow batteries containing the same
    28.
    发明授权
    Coordination compounds having redox non-innocent ligands and flow batteries containing the same 有权

    公开(公告)号：US09938308B2

    公开(公告)日：2018-04-10

    申请号：US15093606

    申请日：2016-04-07

    申请人： LOCKHEED MARTIN ADVANCED ENERGY STORAGE, LLC

    发明人： Matthew Millard

    IPC分类号： C07F7/28 ,  H01M8/18 ,  H01M8/20

    CPC分类号： C07F7/28 ,  H01M8/188 ,  H01M8/20 ,  Y02E60/528

    摘要： Electrolyte solutions for flow batteries and other electrochemical systems can contain an active material capable of transferring more than one electron per oxidation-reduction cycle. Such active materials can include coordination compounds containing a metal center and at least one redox non-innocent ligand. Accordingly, flow batteries can include a first half-cell having a first electrolyte solution therein, where the first electrolyte solution contains a coordination compound having at least one redox non-innocent ligand coordinated to a metal center. Particular redox non-innocent ligands can include those bearing a quinone functional group, such as substituted catecholates bearing a quinone functional group. Some active materials can include compositions containing a coordination compound having at least one redox non-innocent ligand coordinated to a metal center, where the at least one redox non-innocent ligand is a substituted catecholate or a salt thereof bearing a quinone functional group.