公开(公告)号：US07592088B2

公开(公告)日：2009-09-22

申请号：US10925849

申请日：2004-08-25

申请人： Jeffrey A Rock ,  Matthew J Beutel ,  Scott C Ofslager

发明人： Jeffrey A Rock ,  Matthew J Beutel ,  Scott C Ofslager

IPC分类号： H01M2/08 ,  H01M2/00

CPC分类号： H01M8/0273 ,  H01M8/0276 ,  H01M8/0284 ,  Y02P70/56

摘要： A seal configuration is provided for a fuel cell stack, including a first bipolar plate and a second bipolar plate, each disposed on opposite sides of a membrane electrode assembly. The seal configuration includes a first sub-gasket adhered to a recess region of the first bipolar plate and a second sub-gasket adhered to a recess region of the second bipolar plate wherein the first and second sub-gaskets are disposed on opposite sides of the membrane electrode assembly. A seal member is disposed in the recessed regions of the first and second bipolar plates and between the first and second sub-gaskets. The seal configuration minimizes the size of the bypass regions around the seal perimeter and provide better control of the positions of all components during assembly of the fuel cell stack. The approach also reduces sensitivity to ambient relative humidity variations and reduces manufacturing costs by eliminating the need for humidity control in the production area.

摘要翻译： 为包括第一双极板和第二双极板的燃料电池堆提供密封构造，每个设置在膜电极组件的相对侧上。 密封结构包括粘附到第一双极板的凹陷区域的第一子垫圈和粘附到第二双极板的凹陷区域的第二子垫片，其中第一和第二子垫圈设​​置在第二双层板的相对侧上 膜电极组件。 密封构件设置在第一和第二双极板的凹陷区域中以及第一和第二子垫圈之间。 密封构造使围绕密封周边的旁路区域的尺寸最小化，并且在组装燃料电池堆时提供对所有部件的位置的更好控制。 该方法还降低了对环境相对湿度变化的敏感性，并通过消除在生产区域中对湿度控制的需要来降低制造成本。

公开(公告)号：US07318973B2

公开(公告)日：2008-01-15

申请号：US10917066

申请日：2004-08-12

申请人： Jeffrey A Rock ,  Scott C Ofslager

发明人： Jeffrey A Rock ,  Scott C Ofslager

IPC分类号： H01M2/14

CPC分类号： H01M8/0228 ,  H01M8/0247 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/242 ,  H01M2008/1095

摘要： The present invention discloses a stamped bridge member that defines a flow path between a header and a flow field on a fuel cell plate. The bridge member provides a support surface on which a seal can be positioned to seal the plate against adjacent plates or MEAs. The fuel cell plates can be stamped plates with two surfaces each having flow fields thereon. The flow fields maintain a fluid flowing between a supply header and a return header on a single surface of the plate. The ends of the flow fields can taper relative to the supply and return apertures to provide for a desired flow distribution through the flow field.

摘要翻译： 本发明公开了一种冲压桥接件，其限定了燃料电池板上的集管和流场之间的流动路径。 桥构件提供支撑表面，在该支撑表面上可以定位密封件，以将板密封在邻近的板或MEA上。 燃料电池板可以是具有两个表面的冲压板，每个表面上都有流场。 流动区域保持在板的单个表面上的供应头部和返回头部之间流动的流体。 流场的端部可以相对于供应和返回孔逐渐变细，以提供通过流场的期望的流量分布。