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    REDOX FLOW BATTERY AND BATTERY SYSTEM
    11.
    发明申请
    REDOX FLOW BATTERY AND BATTERY SYSTEM 有权

    公开(公告)号：US20210359327A1

    公开(公告)日：2021-11-18

    申请号：US17308845

    申请日：2021-05-05

    Applicant: ESS Tech, Inc.

    Inventor： Craig E. Evans ,  Sean Casey ,  Thiago Groberg ,  Yang Song

    IPC: H01M8/18 ,  H01M8/2455

    Abstract: A redox flow battery and battery system are provided. In one example, the redox flow battery includes a cell stack assembly interposed by two endplates, the cell stack assembly includes a plurality of mated membrane frame plates and bipolar frame plates. For each pair of mated membrane and bipolar frame plates a negative shunt channel and a positive shunt channel are formed and the negative and positive shunt channels are in fluidic communication with a plurality of inlet and outlet distribution channels that are in fluidic communication with at least one bipolar plate.

    REDOX FLOW BATTERY AND BATTERY SYSTEM
    12.
    发明申请
    REDOX FLOW BATTERY AND BATTERY SYSTEM 有权

    公开(公告)号：US20210359326A1

    公开(公告)日：2021-11-18

    申请号：US17308843

    申请日：2021-05-05

    Applicant: ESS Tech, Inc.

    Inventor： Sean Casey ,  Craig Evans ,  Thiago Groberg ,  Yang Song

    IPC: H01M8/18 ,  H01M8/0438

    Abstract: A redox flow battery and battery system are provided. In one example, the redox flow battery includes a set of pressure plates having a first pressure plate at a first terminal end and a second pressure plate at a second terminal end, the second terminal end and the first terminal end positioned on opposing longitudinal sides of the redox flow battery. The redox flow battery further includes a first cell stack positioned longitudinally between the first pressure plate and the second pressure plate, each of the first and second pressure plates includes a plurality stacking detents on a first flange and a plurality of stacking protrusions on a second flange, and the first flange and the second flange arranged on opposing vertical sides of the redox flow battery.

    Methods and systems for operating a redox flow battery system
    13.
    发明授权
    Methods and systems for operating a redox flow battery system 有权

    公开(公告)号：US10680263B2

    公开(公告)日：2020-06-09

    申请号：US15965709

    申请日：2018-04-27

    Applicant: ESS TECH, INC.

    Inventor： Yang Song ,  Evan Doremus ,  Thiago Groberg

    IPC: H01M8/18 ,  H01M8/04746 ,  H01M8/04537 ,  H01M8/04082 ,  H01M8/04186

    Abstract: A method of operating a redox flow battery, may include maintaining a positive electrode compartment pressure greater than a negative electrode compartment pressure, and maintaining a cross-over pressure less than a membrane break-through pressure, wherein the cross-over pressure equals the negative electrode compartment pressure subtracted from the positive electrode compartment pressure. In this way, ionic resistance across the separator can be maintained at a lower level by reducing gas bubbles trapped therein while reducing separator break-through, thereby increasing performance of the redox flow battery system.

    HYDROGEN PUMP FOR A REDOX FLOW BATTERY
    15.
    发明公开
    HYDROGEN PUMP FOR A REDOX FLOW BATTERY 审中-公开

    公开(公告)号：US20240194907A1

    公开(公告)日：2024-06-13

    申请号：US18537641

    申请日：2023-12-12

    Applicant: ESS TECH, INC.

    Inventor： Thiago Groberg ,  Craig Evans

    IPC: H01M8/04082 ,  H01M8/0438 ,  H01M8/04746 ,  H01M8/04858

    CPC classification number: H01M8/04201 ,  H01M8/04388 ,  H01M8/04753 ,  H01M8/04947 ,  H01M8/188

    Abstract: Systems and methods are provided for actively directing hydrogen flow in an electrochemical cell system. The electrochemical cell system includes a component configured to receive hydrogen gas, one or more hydrogen blower assemblies positioned upstream and/or downstream of the component. The one or more hydrogen blowers include at least one sensor positioned on an outer surface of the one or more hydrogen blower assemblies and a controller including instructions to generate a notification in response to an output of the at least one sensor being outside of a target range.

    Electrode assembly for a redox flow battery
    16.
    发明授权
    Electrode assembly for a redox flow battery 有权

    公开(公告)号：US11677093B2

    公开(公告)日：2023-06-13

    申请号：US17308913

    申请日：2021-05-05

    Applicant: ESS Tech, Inc.

    Inventor： Sean Casey ,  Craig Evans ,  Thiago Groberg ,  Yang Song

    IPC: H01M8/248 ,  H01M8/0247 ,  H01M8/18

    CPC classification number: H01M8/248 ,  H01M8/0247 ,  H01M8/188

    Abstract: Methods and systems are provided for a redox flow battery system. In one example, the redox flow battery system includes a cell stack compressed between terminal structures defining ends of the redox flow battery. The cell stack may be formed of a plurality of cells where each cell includes a deformable positive electrode in contact with a first face of a membrane separator and a negative electrode configured to be less compressible than the positive electrode and arranged at a second face of the membrane separator.

    SYSTEMS AND METHODS FOR ELECTRODE ASSEMBLY FOR REDOX FLOW BATTERY SYSTEM
    18.
    发明申请
    SYSTEMS AND METHODS FOR ELECTRODE ASSEMBLY FOR REDOX FLOW BATTERY SYSTEM 有权

    公开(公告)号：US20220367898A1

    公开(公告)日：2022-11-17

    申请号：US17655492

    申请日：2022-03-18

    Applicant: ESS Tech, Inc.

    Inventor： Thiago Groberg

    IPC: H01M8/18 ,  H01M8/1004 ,  H01M8/0438 ,  H01M8/2483

    Abstract: Systems and methods are provided for assembling and operating an electrode assembly for a redox flow battery system. In one example, the electrode assembly may include an inflatable housing in which a negative electrode spacer and a positive electrode may be positioned, wherein the inflatable housing may inflate responsive to applied internal pressure during operation of the redox flow battery system. In some examples, the electrode assembly may be assembled via roll-to-roll processing and may be mechanically and fluidically coupled to electrode assemblies of like configuration. In this way, tolerance stacking may be decreased, processing may be simplified, and costs may be reduced relative to molding-based processes for electrode assembly manufacturing.

    ELECTRODE ASSEMBLY FOR A REDOX FLOW BATTERY
    19.
    发明申请
    ELECTRODE ASSEMBLY FOR A REDOX FLOW BATTERY 有权

    公开(公告)号：US20210359332A1

    公开(公告)日：2021-11-18

    申请号：US17308913

    申请日：2021-05-05

    Applicant: ESS Tech, Inc.

    Inventor： Sean Casey ,  Craig Evans ,  Thiago Groberg ,  Yang Song

    IPC: H01M8/248 ,  H01M8/18 ,  H01M8/0247

    Abstract: Methods and systems are provided for a redox flow battery system. In one example, the redox flow battery system includes a cell stack compressed between terminal structures defining ends of the redox flow battery. The cell stack may be formed of a plurality of cells where each cell includes a deformable positive electrode in contact with a first face of a membrane separator and a negative electrode configured to be less compressible than the positive electrode and arranged at a second face of the membrane separator.

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