Diffusion media with continuous micro-porous layers incorporating non-uniformity
    21.
    发明申请
    Diffusion media with continuous micro-porous layers incorporating non-uniformity 有权
    具有不均匀性的连续微孔层的扩散介质

    公开(公告)号:US20070048593A1

    公开(公告)日:2007-03-01

    申请号:US11215395

    申请日:2005-08-30

    IPC分类号: H01M4/94 B05D5/12 H01M4/88

    摘要: A diffusion media and micro-porous media combination for a fuel cell. A diffusion layer is composed of a diffusion media and has a first (electrode) side and an opposite second (flowfield) side, wherein at least one of the first and second sides has a geometric pattern formed therein comprising a multiplicity of mutually spaced apart regions. A micro-porous media fills the multiplicity of regions and a micro-porous layer composed of the micro-porous media is continuously applied to the first surface.

    摘要翻译: 用于燃料电池的扩散介质和微孔介质组合。 扩散层由扩散介质组成并具有第一(电极)侧和相对的第二(流场)侧,其中第一和第二侧中的至少一个具有形成在其中的几何图案,其中包括多个相互间隔开的区域 。 微孔介质填充多个区域,并且由微孔介质组成的微孔层连续地施加到第一表面。

    Enhanced flowfield plates
    22.
    发明申请
    Enhanced flowfield plates 有权
    增强流场板

    公开(公告)号:US20060127742A1

    公开(公告)日:2006-06-15

    申请号:US11232712

    申请日:2005-09-22

    IPC分类号: H01M8/04

    摘要: The present invention is directed to mitigating overuse of limited membrane regions in electrochemical conversion assemblies, particularly under cold start conditions. In accordance with one embodiment of the present invention, the anode and/or cathode flowfield plates of an electrochemical conversion assembly are configured such that the fluid header region defines an anode fluid header, a cathode fluid header, and a coolant fluid header configured such that a feed region of the plate defines an array of substantially linear fluid channels extending from an acutely angled header/feed interface defined on the plate to a feed/active interface defined across the entire active area of the plate.

    摘要翻译: 本发明涉及减轻电化学转化组件中特别是在冷启动条件下的有限膜区域的过度使用。 根据本发明的一个实施例,电化学转化组件的阳极和/或阴极流场板被配置为使得流体集管区域限定阳极流体集管,阴极流体集管和冷却剂流体集管,其被配置为使得 板的进料区域限定了基本上线性的流体通道的阵列,其从限定在板上的锐角头部/进料界面延伸到限定在板的整个有源区域上的进给/主动界面。

    Fluid flow path for stamped bipolar plate
    23.
    发明申请
    Fluid flow path for stamped bipolar plate 有权
    冲压双极板流体流路

    公开(公告)号:US20060046132A1

    公开(公告)日:2006-03-02

    申请号:US10926748

    申请日:2004-08-26

    IPC分类号: H01M8/02

    摘要: A stamped bipolar plate of a fuel cell stack includes a first stamped plate half having a first reactant flow field formed therein, a portion of which defines a first reactant header region. A second stamped plate half has a first coolant flow field formed therein, a portion of which defines a first set of coolant feed channels that extend at least partially across the first reactant header region.

    摘要翻译: 燃料电池堆的冲压双极板包括其中形成有第一反应物流场的第一冲压板半部分,其一部分限定第一反应物头部区域。 第二冲压板半部具有形成在其中的第一冷却剂流场,其一部分限定了至少部分地跨过第一反应物头部区域延伸的第一组冷却剂供给通道。

    Nested bipolar plate for fuel cell and method

    公开(公告)号:US20060029840A1

    公开(公告)日:2006-02-09

    申请号:US11235709

    申请日:2005-09-26

    申请人: Steven Goebel

    发明人: Steven Goebel

    IPC分类号: H01M8/02 H01M8/04 B26D3/06

    摘要: Between adjacent MEA's is a bipolar plate assembly having a first sub-plate with a flow channel which is open to the anode side of the one of the MEA's. A second sub-plate has a flow channel which is open to the cathode side of the adjacent MEA. The sub-plates are nested together to form a coolant flow channel between the sub-plates. The coolant flow path has a height dimension wherein the distance between the adjacent MEA's is substantially unaffected by the height dimension of the coolant flow path. A method of manufacturing a bi-polar plate assembly includes forming a closed coolant flow channel between the sub-plates by nesting the sub-plates together. A method of operating a fuel cell includes passing the coolant through a flow path having a height dimension which is substantially aligned with the height dimension of the hydrogen flow path, the oxygen flow path, or both.

    Method and apparatus for hydrogen detection and dilution
    26.
    发明申请
    Method and apparatus for hydrogen detection and dilution 有权
    用于氢气检测和稀释的方法和装置

    公开(公告)号:US20050058861A1

    公开(公告)日:2005-03-17

    申请号:US10666008

    申请日:2003-09-17

    IPC分类号: H01M8/04

    CPC分类号: H01M8/04089 H01M8/04014

    摘要: The present invention provides for a method and apparatus for hydrogen detection and dilution. The present invention uses an enclosure within which a variety of components of a fuel cell system are located and a ventilation stream to vent the enclosure which is induced by operation of a compressor that also is operable to supply the oxygen to the fuel cell system. The ventilation stream is directed through an outlet in the enclosure that contains a hydrogen sensor that is operable to both detect the presence of hydrogen and to consume hydrogen within the ventilation stream prior to being exhausted from the enclosure. The ventilation stream, alternatively, can be induced by operation of a fan driven by a motor which operates independently of the operation of the oxidant delivery system.

    摘要翻译: 本发明提供了用于氢气检测和稀释的方法和装置。 本发明使用燃料电池系统的各种部件所在的外壳,以及通过压缩机操作而引起的外壳的通气流,所述压缩机也可操作以将氧气供应到燃料电池系统。 通风流被引导通过外壳中的出口,其包含氢传感器,其可操作以在从外壳排出之前检测氢的存在并消耗通气流内的氢。 可选地,通风流可以通过独立于氧化剂输送系统的操作而操作由马达驱动的风扇来引起。