SYSTEMS AND METHODS OF FUEL CELL STACK COMPRESSION

    公开(公告)号:US20190027773A1

    公开(公告)日:2019-01-24

    申请号:US16042327

    申请日:2018-07-23

    IPC分类号: H01M8/248 H01M8/0247

    摘要: An electrochemical-cell stack assembly is provided. The assembly has an electrochemical-cell stack and a compression system that holds the electrochemical-cell stack in a state of compression. The compression system has a first endplate and a second endplate positioned at opposite ends of the electrochemical-cell stack. The compression system has a set of tension members coupled to the first endplate and the second endplate that maintain a fixed distance between the first endplate and the second endplate. The compression system has a compression plate disposed between the second endplate and the electrochemical-cell stack. The compression system has a compression member in contact with the compression plate, wherein the compression member is configured to transfer a force to the compression plate. The compression system has a locking nut fastened to the second plate. The locking nut secures the position of the compression member and compression plate relative to the second endplate.

    ELECTROCHEMICAL STACK COMPRESSION SYSTEM
    22.
    发明申请

    公开(公告)号:US20190020051A1

    公开(公告)日:2019-01-17

    申请号:US16133804

    申请日:2018-09-18

    摘要: In accordance with one embodiment, an electrochemical cell stack compression system may include an integral, hollow frame configured to contain a plurality of electrochemical cells arranged along an axis in a stack configuration. The frame may have a defined shape and may form a continuous border around a periphery of the electrochemical cell stack when inserted. The frame may be formed of a plurality of fibers.

    Dynamic decompression control for high pressure seals

    公开(公告)号:US10014537B2

    公开(公告)日:2018-07-03

    申请号:US15875458

    申请日:2018-01-19

    发明人: Scott Blanchet

    摘要: The present disclosure is directed to a method and system for dynamically controlling seal decompression. The method includes monitoring a set of parameters associated with an operation of a seal, wherein the set of parameters includes a maximum pressure subjected to the seal and an exposure time at the maximum pressure, calculating a target pressure ramp down rate based on at least one of the maximum pressure and the exposure time, and decreasing a pressure about the seal at a decompression rate that is based on the target pressure ramp down rate. The system includes a controller having a memory device, a graphical user interface, at least one pressure transmitter configured to monitor the pressure about the seal, and a processor, wherein the processor is configured to detect a maximum exposure pressure and exposure time at maximum pressure about the seal and control a pressure ramp down about the seal based on the maximum exposure pressure and the exposure time detected in order to prevent explosive decompression of the seal.

    RESILIENT FLOW STRUCTURES FOR ELECTROCHEMICAL CELL

    公开(公告)号:US20170133693A1

    公开(公告)日:2017-05-11

    申请号:US15410840

    申请日:2017-01-20

    摘要: An electrochemical cell is disclosed comprising, a first flow structure, a second flow structure, and a membrane electrode assembly disposed between the first and second flow structures. The electrochemical cell further comprises a pair of bipolar plates, wherein the first flow structure, the second flow structure, and the membrane electrode assembly are positioned between the pair of bipolar plates. The electrochemical cell also includes a spring mechanism, wherein the spring mechanism is disposed between the first flow structure and the bipolar plate adjacent to the first flow structure, and applies a pressure on the first flow structure in a direction substantially toward the membrane electrode assembly.

    DESIGN OF BIPOLAR PLATES FOR USE IN CONDUCTION-COOLED ELECTROCHEMICAL CELLS
    25.
    发明申请
    DESIGN OF BIPOLAR PLATES FOR USE IN CONDUCTION-COOLED ELECTROCHEMICAL CELLS 审中-公开
    用于导电冷却的电化学细胞中的双极板的设计

    公开(公告)号:US20160315333A1

    公开(公告)日:2016-10-27

    申请号:US15203014

    申请日:2016-07-06

    摘要: The present disclosure is directed towards the design of bipolar plates for use in conduction-cooled electrochemical cells. Heat generated during the operation of the cell is removed from the active area of the cell to the periphery of the cell via the one or more bipolar plates in the cell. The one or more bipolar plates are configured to function as heat sinks to collect heat from the active area of the cell and to conduct the heat to the periphery of the plate where the heat is removed by traditional heat transfer means. The boundary of the one or more bipolar plates can be provided with heat dissipation structures to facilitate removal of heat from the plates. To function as effective heat sinks, the thickness of the one or more bipolar plates can be determined based on the rate of heat generation in the cell during operation, the thermal conductivity (“k”) of the material selected to form the plate, and the desired temperature gradient in a direction orthogonal to the plate (“ΔT”).

    摘要翻译: 本公开涉及用于传导冷却电化学电池的双极板的设计。 在电池操作期间产生的热量通过电池中的一个或多个双极板从电池的有源区域移除到电池的外围。 一个或多个双极板被配置为用作散热器以从电池的有源区域收集热量,并将热量传导到板的周边,其中热量由传统的热传递装置去除。 一个或多个双极板的边界可以设置有散热结构,以便于从板上去除热量。 为了起到有效的散热器的作用,一个或多个双极板的厚度可以基于操作期间电池中的发热速率,被选择形成板的材料的热导率(“k”),以及 在与板正交的方向上的期望温度梯度(“ΔT”)。

    SYSTEMS AND METHODS OF FUEL CELL STACK COMPRESSION

    公开(公告)号:US20240063418A1

    公开(公告)日:2024-02-22

    申请号:US18499748

    申请日:2023-11-01

    IPC分类号: H01M8/248 H01M8/0247

    CPC分类号: H01M8/248 H01M8/0247

    摘要: An electrochemical-cell stack assembly is provided. The assembly has an electrochemical-cell stack and a compression system that holds the electrochemical-cell stack in a state of compression. The compression system has a first endplate and a second endplate positioned at opposite ends of the electrochemical-cell stack. The compression system has a set of tension members coupled to the first endplate and the second endplate that maintain a fixed distance between the first endplate and the second endplate. The compression system has a compression plate disposed between the second endplate and the electrochemical-cell stack. The compression system has a compression member in contact with the compression plate, wherein the compression member is configured to transfer a force to the compression plate. The compression system has a locking nut fastened to the second plate. The locking nut secures the position of the compression member and compression plate relative to the second endplate.

    Systems and methods of fuel cell stack compression

    公开(公告)号:US11831058B2

    公开(公告)日:2023-11-28

    申请号:US16042327

    申请日:2018-07-23

    IPC分类号: H01M8/248 H01M8/0247

    CPC分类号: H01M8/248 H01M8/0247

    摘要: An electrochemical-cell stack assembly is provided. The assembly has an electrochemical-cell stack and a compression system that holds the electrochemical-cell stack in a state of compression. The compression system has a first endplate and a second endplate positioned at opposite ends of the electrochemical-cell stack. The compression system has a set of tension members coupled to the first endplate and the second endplate that maintain a fixed distance between the first endplate and the second endplate. The compression system has a compression plate disposed between the second endplate and the electrochemical-cell stack. The compression system has a compression member in contact with the compression plate, wherein the compression member is configured to transfer a force to the compression plate. The compression system has a locking nut fastened to the second plate. The locking nut secures the position of the compression member and compression plate relative to the second endplate.

    Fuel cell module arrangement with leak recovery and methods of use

    公开(公告)号:US11289725B2

    公开(公告)日:2022-03-29

    申请号:US16173142

    申请日:2018-10-29

    发明人: Scott Blanchet

    摘要: The present disclosure is directed to a fuel cell module. The fuel cell module may include a fuel cell having an anode, a cathode, and an electrolyte positioned between the anode and the cathode. The fuel cell module may also include an enclosure housing the fuel cell therein. The enclosure may include an air inlet and an air outlet. The fuel cell module may further include an air pressurizing mechanism fluidly connected to the enclosure. The air pressurizing mechanism may be configured to draw air through the air inlet into the enclosure and from the enclosure to the air pressurizing mechanism through the air outlet. The air pressurizing mechanism may be configured to pressurize the air to form a pressurized air stream that is directed to the cathode.

    Steam reformers, modules, and methods of use

    公开(公告)号:US10773229B2

    公开(公告)日:2020-09-15

    申请号:US16133799

    申请日:2018-09-18

    摘要: The present disclosure is directed to steam reformers for the production of a hydrogen rich reformate, comprising a shell having a first end, a second end, and a passage extending generally between the first end and the second end of the shell, and at least one heat source disposed about the second end of the shell. The shell comprises at least one conduit member comprising at least one thermally emissive and high radiant emissivity material, at least partially disposed within the shell cavity. The shell further comprises at least one reactor module at least a portion of which is disposed within the shell cavity and about the at least one conduit member and comprises at least one reforming catalyst. The disclosure is also directed to methods of producing a hydrogen reformate utilizing the steam reformers, comprising the steps of combusting a combustible mixture in a burner to produce a combustion exhaust that interacts with the steam reactor module(s) through surface to surface radiation and convection heat transfer, and reforming a hydrocarbon fuel mixed with steam in the steam reformers to produce a hydrogen-containing reformate. The present disclosure is further directed to reactor modules for use with the above steam reformers and methods of producing a hydrogen reformate.