Subzero ambient shutdown purge operating strategy for PEM fuel cell system
    1.
    发明授权
    Subzero ambient shutdown purge operating strategy for PEM fuel cell system 有权
    PEM燃料电池系统的零度环境关闭清洗操作策略

    公开(公告)号:US09070921B2

    公开(公告)日:2015-06-30

    申请号:US13431703

    申请日:2012-03-27

    IPC分类号: H01M8/06 H01M16/00 H01M8/04

    摘要: A method for purging water from a fuel cell stack at fuel cell system shutdown. The method includes determining a stack water generation request to control the rate of drying of membranes in the stack and determining a cathode catalytic heating water generation request. A maximum charge a battery in the fuel cell system can accept is also determined. An ancillary power request for powering components of the fuel cell system during shutdown is determined. The method allocates how much of the water generation request will be fulfilled by operating the fuel cell stack to charge the battery and to provide the power needed for the ancillary power request, and how much of the water generation request will be fulfilled by cathode catalytic heating that produces water and heat in a cathode side of the fuel cell stack.

    摘要翻译: 一种在燃料电池系统关闭时从燃料电池堆排出水的方法。 该方法包括确定堆积水生成请求以控制堆叠中的膜的干燥速率并确定阴极催化加热水产生请求。 也可以确定燃料电池系统中可以接受的电池的最大充电量。 确定在关闭期间为燃料电池系统的组件供电的辅助功率请求。 该方法通过操作燃料电池堆来对电池进行充电并提供辅助电力需求所需的功率,并通过阴极催化加热达到多少水分产生要求, 其在燃料电池堆的阴极侧产生水和热。

    SUBZERO AMBIENT SHUTDOWN PURGE OPERATING STRATEGY FOR PEM FUEL CELL SYSTEM
    2.
    发明申请
    SUBZERO AMBIENT SHUTDOWN PURGE OPERATING STRATEGY FOR PEM FUEL CELL SYSTEM 有权
    用于PEM燃料电池系统的辅助关闭冲程运行策略

    公开(公告)号:US20130260185A1

    公开(公告)日:2013-10-03

    申请号:US13431703

    申请日:2012-03-27

    IPC分类号: H01M8/06 H01M16/00

    摘要: A method for purging water from a fuel cell stack at fuel cell system shutdown. The method includes determining a stack water generation request to control the rate of drying of membranes in the stack and determining a cathode catalytic heating water generation request. A maximum charge a battery in the fuel cell system can accept is also determined. An ancillary power request for powering components of the fuel cell system during shutdown is determined. The method allocates how much of the water generation request will be fulfilled by operating the fuel cell stack to charge the battery and to provide the power needed for the ancillary power request, and how much of the water generation request will be fulfilled by cathode catalytic heating that produces water and heat in a cathode side of the fuel cell stack.

    摘要翻译: 一种在燃料电池系统关闭时从燃料电池堆排出水的方法。 该方法包括确定堆积水生成请求以控制堆叠中的膜的干燥速率并确定阴极催化加热水产生请求。 也可以确定燃料电池系统中可以接受的电池的最大充电量。 确定在关闭期间为燃料电池系统的组件供电的辅助功率请求。 该方法通过操作燃料电池堆来对电池进行充电并提供辅助电力需求所需的功率,并通过阴极催化加热达到多少水分产生要求, 其在燃料电池堆的阴极侧产生水和热。

    Supplemental coolant heating for fuel cells with metal plates
    3.
    发明授权
    Supplemental coolant heating for fuel cells with metal plates 有权
    用金属板燃料电池补充冷却剂加热

    公开(公告)号:US08603654B2

    公开(公告)日:2013-12-10

    申请号:US11562645

    申请日:2006-11-22

    IPC分类号: H01M2/14

    摘要: A fuel cell stack that includes catalyzed surfaces in the non-active inlet region of the cathode flow channels. At cold system start-up, hydrogen is introduced into the cathode inlet header to be mixed with air so that a chemical reaction is provided by the catalyst that generates heat to warm the cooling fluid in the non-active inlet area. Therefore, the cooling fluid that enters the active area of the stack will not be cold enough to quench the chemical reaction.

    摘要翻译: 燃料电池堆,其包括阴极流动通道的非活性入口区域中的催化表面。 在冷启动时,将氢气引入阴极入口集管中以与空气混合,从而通过产生热量的催化剂提供化学反应以加热非活性入口区域中的冷却流体。 因此,进入堆叠的有源区域的冷却流体不会足够冷以淬灭化学反应。

    Fuel cell operating method with improved hydrogen and oxygen utilization
    4.
    发明授权
    Fuel cell operating method with improved hydrogen and oxygen utilization 有权
    燃料电池操作方法具有改善的氢气和氧气利用率

    公开(公告)号:US07820333B2

    公开(公告)日:2010-10-26

    申请号:US11113574

    申请日:2005-04-25

    IPC分类号: H01M8/24 H01M8/04

    摘要: A fuel cell system wherein a plurality of fuel cells are arranged in a series of stages, the number of fuel cells decreasing in number in each stage from anode gas inlet to the anode gas outlet. The system allows for parallel flow to all of the cells in a given stage and series flow between the various stages. A similar configuration is present on a cathode side of the system. However, the direction of flow is reversed, providing a greater number of cells in the stage nearest the cathode outlet and a fewer number of cells in the stage near the cathode gas inlet. The invention further provides for the various stages to be configured such that the direction of flow of the anode gas of a given stage is generally opposite the direction of flow of the cathode gas of a given stage.

    摘要翻译: 一种燃料电池系统,其中多个燃料电池以一系列的阶段布置,每个阶段的燃料电池的数量从阳极气体入口到阳极气体出口减少。 该系统允许在给定阶段中的所有单元并行流到各个阶段之间的串联流。 类似的配置存在于系统的阴极侧。 然而,流动方向相反,在最靠近阴极出口的阶段中提供更多数量的电池,并且在靠近阴极气体入口的阶段提供更少数量的电池。 本发明还提供了要被配置为使得给定级的阳极气体的流动方向大致与给定级的阴极气体的流动方向相反的各个阶段。

    SUPPLEMENTAL COOLANT HEATING FOR FUEL CELLS WITH METAL PLATES
    5.
    发明申请
    SUPPLEMENTAL COOLANT HEATING FOR FUEL CELLS WITH METAL PLATES 有权
    补充冷却剂加热燃料电池与金属板

    公开(公告)号:US20080118788A1

    公开(公告)日:2008-05-22

    申请号:US11562645

    申请日:2006-11-22

    IPC分类号: H01M8/04 H01M8/00

    摘要: A fuel cell stack that includes catalyzed surfaces in the non-active inlet region of the cathode flow channels. At cold system start-up, hydrogen is introduced into the cathode inlet header to be mixed with air so that a chemical reaction is provided by the catalyst that generates heat to warm the cooling fluid in the non-active inlet area. Therefore, the cooling fluid that enters the active area of the stack will not be cold enough to quench the chemical reaction.

    摘要翻译: 燃料电池堆,其包括阴极流动通道的非活性入口区域中的催化表面。 在冷启动时,将氢气引入阴极入口集管中以与空气混合,从而通过产生热量的催化剂提供化学反应以加热非活性入口区域中的冷却流体。 因此,进入堆叠的有源区域的冷却流体不会足够冷以淬灭化学反应。

    Water blocking layer and wicking reservoir for PEMFC
    7.
    发明授权
    Water blocking layer and wicking reservoir for PEMFC 有权
    PEMFC的阻水层和芯吸池

    公开(公告)号:US07749637B2

    公开(公告)日:2010-07-06

    申请号:US11229909

    申请日:2005-09-19

    IPC分类号: H01M8/02 H01M8/10

    摘要: A fuel cell including a water blocking layer positioned between anode gas flow channels and a gas diffusion media. The blocking layer prevents water from propagating through the gas diffusion media layer and entering the anode flow channels, while allowing gas from the flow channels to flow through the diffusion media layer to the membrane. A water accumulation channel can be provided around the perimeter of the gas diffusion media layer where blocked water is accumulated, and allowed to expand during cell freezing. A porous capillary wick can be provided in the accumulation channel for wicking water to the inlet end of the flow channels where it is used to humidify the anode gas coming into the fuel cell. The wick can have a tapered configuration so that it has a larger diameter at the gas input end of the flow channels.

    摘要翻译: 一种燃料电池,包括位于阳极气体流动通道和气体扩散介质之间的阻水层。 阻挡层防止水通过气体扩散介质层传播并进入阳极流动通道,同时允许来自流动通道的气体流过扩散介质层至膜。 可以在气体扩散介质层的周边周围设置积聚通道,其中堵塞的水被积聚,并允许在细胞冷冻期间膨胀。 可以在积聚通道中提供多孔毛细管芯,用于将水吸收到流动通道的入口端,在那里用于加湿进入燃料电池的阳极气体。 芯可以具有锥形构造,使得其在流动通道的气体输入端处具有较大的直径。

    Water blocking layer and wicking reservoir for PEMFC
    8.
    发明申请
    Water blocking layer and wicking reservoir for PEMFC 有权
    PEMFC的阻水层和芯吸池

    公开(公告)号:US20070065708A1

    公开(公告)日:2007-03-22

    申请号:US11229909

    申请日:2005-09-19

    IPC分类号: H01M8/02 H01M8/10 H01M4/94

    摘要: A fuel cell including a water blocking layer positioned between anode gas flow channels and a gas diffusion media. The blocking layer prevents water from propagating through the gas diffusion media layer and entering the anode flow channels, while allowing gas from the flow channels to flow through the diffusion media layer to the membrane. A water accumulation channel can be provided around the perimeter of the gas diffusion media layer where blocked water is accumulated, and allowed to expand during cell freezing. A porous capillary wick can be provided in the accumulation channel for wicking water to the inlet end of the flow channels where it is used to humidify the anode gas coming into the fuel cell. The wick can have a tapered configuration so that it has a larger diameter at the gas input end of the flow channels.

    摘要翻译: 一种燃料电池,包括位于阳极气体流动通道和气体扩散介质之间的阻水层。 阻挡层防止水通过气体扩散介质层传播并进入阳极流动通道,同时允许来自流动通道的气体流过扩散介质层至膜。 可以在气体扩散介质层的周边周围设置积聚通道,其中堵塞的水被积聚,并允许在细胞冷冻期间膨胀。 可以在积聚通道中提供多孔毛细管芯,用于将水吸收到流动通道的入口端,在那里用于加湿进入燃料电池的阳极气体。 芯可以具有锥形构造,使得其在流动通道的气体输入端处具有较大的直径。

    Fuel cell operating method with improved hydrogen and oxygen utilization
    9.
    发明申请
    Fuel cell operating method with improved hydrogen and oxygen utilization 有权
    燃料电池操作方法具有改善的氢气和氧气利用率

    公开(公告)号:US20060240302A1

    公开(公告)日:2006-10-26

    申请号:US11113574

    申请日:2005-04-25

    IPC分类号: H01M8/02 H01M8/24

    摘要: A fuel cell system wherein a plurality of fuel cells are arranged in a series of stages, the number of fuel cells decreasing in number in each stage from anode gas inlet to the anode gas outlet. The system allows for parallel flow to all of the cells in a given stage and series flow between the various stages. A similar configuration is present on a cathode side of the system. However, the direction of flow is reversed, providing a greater number of cells in the stage nearest the cathode outlet and a fewer number of cells in the stage near the cathode gas inlet. The invention further provides for the various stages to be configured such that the direction of flow of the anode gas of a given stage is generally opposite the direction of flow of the cathode gas of a given stage.

    摘要翻译: 一种燃料电池系统,其中多个燃料电池以一系列的阶段布置,每个阶段的燃料电池的数量从阳极气体入口到阳极气体出口减少。 该系统允许在给定阶段中的所有单元并行流到各个阶段之间的串联流。 类似的配置存在于系统的阴极侧。 然而,流动方向相反,在最靠近阴极出口的阶段中提供更多数量的电池,并且在靠近阴极气体入口的阶段提供更少数量的电池。 本发明还提供了要被配置为使得给定级的阳极气体的流动方向大致与给定级的阴极气体的流动方向相反的各个阶段。