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    Coordination Complexes Containing Monosulfonated Catecholate Ligands and Methods for Producing the Same
    2.
    发明申请
    Coordination Complexes Containing Monosulfonated Catecholate Ligands and Methods for Producing the Same 审中-公开

    公开(公告)号：US20200227769A1

    公开(公告)日：2020-07-16

    申请号：US16828394

    申请日：2020-03-24

    Applicant: Lockheed Martin Energy, LLC

    Inventor： Scott Thomas Humbarger ,  Matthew Millard

    IPC: H01M8/18 ,  H01M10/36 ,  H01B1/12 ,  C07F7/28 ,  H01M8/08 ,  H01M8/20

    Abstract: Flow batteries and other electrochemical systems can contain an active material that is a coordination complex having at least one monosulfonated catecholate ligand or a salt thereof bound to a metal center. The monosulfonated catecholate ligand has a structure of More particularly, the coordination complex can be a titanium coordination complex with a formula of DgTi(L1)(L2)(L3), in which D is a counterion selected from H, NH4+, Li+, Na+, K+, or any combination thereof; g ranges between 3 and 6; and L1, L2 and L3 are ligands, where at least one of L1, L2 and L3 is a monosulfonated catecholate ligand. Methods for synthesizing such monosulfonated catecholate ligands can include providing a neat mixture of catechol and up to about 1.3 stoichiometric equivalents of sulfuric acid, and heating the neat mixture at a temperature of about 80° C. or above to form 3,4-dihydroxybenzenesulfonic acid or a salt thereof.

    Flow batteries incorporating active materials containing doubly bridged aromatic groups
    4.
    发明授权
    Flow batteries incorporating active materials containing doubly bridged aromatic groups 有权

    公开(公告)号：US10930937B2

    公开(公告)日：2021-02-23

    申请号：US15360918

    申请日：2016-11-23

    Applicant: Lockheed Martin Energy, LLC

    Inventor： Matthew Millard ,  Zachariah M. Norman

    IPC: H01M8/04276 ,  H01M4/90 ,  C07F7/28 ,  H01M8/18 ,  H01M8/20

    Abstract: Electrolyte solutions for flow batteries and other electrochemical systems can contain an active material that is capable of transferring one or more electrons per molecule during an oxidation-reduction cycle. Doubly bridged aromatic groups or their coordination compounds can be particularly suitable active materials. Flow batteries can include a first half-cell containing a first electrolyte solution, and a second half-cell containing a second electrolyte solution, in which at least one of the first electrolyte solution and the second electrolyte solution contains an active material having at least two aromatic groups doubly bridged by a carbonyl moiety and a bridging moiety containing a bridging atom selected from carbon, nitrogen, oxygen, sulfur, selenium and tellurium. Such bridged compounds can directly function as the active material, or coordination compounds containing the bridged compounds as at least one ligand can serve as the active material.

    Flow Batteries Incorporating Active Materials Containing Doubly Bridged Aromatic Groups
    5.
    发明申请
    Flow Batteries Incorporating Active Materials Containing Doubly Bridged Aromatic Groups 有权

    公开(公告)号：US20210135246A1

    公开(公告)日：2021-05-06

    申请号：US17147585

    申请日：2021-01-13

    Applicant: Lockheed Martin Energy, LLC

    Inventor： Matthew Millard ,  Zachariah M. Norman

    IPC: H01M4/90 ,  C07F7/28 ,  H01M8/04276 ,  H01M8/18 ,  H01M8/20

    Abstract: Electrolyte solutions for flow batteries and other electrochemical systems can contain an active material that is capable of transferring one or more electrons per molecule during an oxidation-reduction cycle. Doubly bridged aromatic groups or their coordination compounds can be particularly suitable active materials. Flow batteries can include a first half-cell containing a first electrolyte solution, and a second half-cell containing a second electrolyte solution, in which at least one of the first electrolyte solution and the second electrolyte solution contains an active material having at least two aromatic groups doubly bridged by a carbonyl moiety and a bridging moiety containing a bridging atom selected from carbon, nitrogen, oxygen, sulfur, selenium and tellurium. Such bridged compounds can directly function as the active material, or coordination compounds containing the bridged compounds as at least one ligand can serve as the active material.

    Aqueous methods for forming titanium catecholate complexes and associated compositions
    6.
    发明授权
    Aqueous methods for forming titanium catecholate complexes and associated compositions 有权

    公开(公告)号：US10741864B2

    公开(公告)日：2020-08-11

    申请号：US15473553

    申请日：2017-03-29

    Applicant: Lockheed Martin Energy, LLC

    Inventor： Steven Reece ,  Emily Grace Nelson ,  Matthew Millard

    IPC: C07F7/28 ,  H01M8/18 ,  H01M4/90 ,  H01M8/08

    Abstract: Titanium catecholate complexes can be desirable active materials for flow batteries and other electrochemical energy storage systems, particularly when incorporated in aqueous electrolyte solutions. It can be desirable to avoid introducing certain organic solvents and/or extraneous salts into aqueous electrolyte solutions. Methods for synthesizing titanium catecholate complexes that can help avoid the unwanted introduction of organic solvents and/or extraneous salts into aqueous electrolyte solutions can include: providing an aqueous solution containing a catechol compound, reacting a titanium reagent with the catechol compound in the aqueous solution to form an intermediate titanium catecholate complex, isolating the intermediate titanium catecholate complex as a solid or slurry, and reacting a ligatable compound with the intermediate titanium catecholate complex in the presence of a base to produce a salt form titanium catecholate complex containing at least one additional ligand.

    Flow batteries incorporating active materials containing doubly bridged aromatic groups
    9.
    发明授权
    Flow batteries incorporating active materials containing doubly bridged aromatic groups 有权

    公开(公告)号：US12062795B2

    公开(公告)日：2024-08-13

    申请号：US17147585

    申请日：2021-01-13

    Applicant: Lockheed Martin Energy, LLC

    Inventor： Matthew Millard ,  Zachariah M. Norman

    IPC: H01M4/90 ,  C07F7/28 ,  H01M8/04276 ,  H01M8/18 ,  H01M8/20

    CPC classification number: H01M4/9008 ,  C07F7/28 ,  H01M8/04276 ,  H01M8/188 ,  H01M8/20 ,  Y02E60/50

    Abstract: Electrolyte solutions for flow batteries and other electrochemical systems can contain an active material that is capable of transferring one or more electrons per molecule during an oxidation-reduction cycle. Doubly bridged aromatic groups or their coordination compounds can be particularly suitable active materials. Flow batteries can include a first half-cell containing a first electrolyte solution, and a second half-cell containing a second electrolyte solution, in which at least one of the first electrolyte solution and the second electrolyte solution contains an active material having at least two aromatic groups doubly bridged by a carbonyl moiety and a bridging moiety containing a bridging atom selected from carbon, nitrogen, oxygen, sulfur, selenium and tellurium. Such bridged compounds can directly function as the active material, or coordination compounds containing the bridged compounds as at least one ligand can serve as the active material.

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