公开(公告)号：US5773160A

公开(公告)日：1998-06-30

申请号：US721214

申请日：1996-09-26

申请人： David P. Wilkinson ,  Henry H. Voss ,  Nicholas J. Fletcher ,  Mark C. Johnson ,  Eric G. Pow

发明人： David P. Wilkinson ,  Henry H. Voss ,  Nicholas J. Fletcher ,  Mark C. Johnson ,  Eric G. Pow

IPC分类号： H01M8/02 ,  H01M8/04 ,  H01M8/24

CPC分类号： H01M8/04074 ,  H01M8/04007 ,  H01M8/241 ,  H01M8/2465 ,  H01M2300/0082 ,  H01M8/04156 ,  H01M8/04291

摘要： A fuel cell assembly within an electrochemical fuel cell stack has an anode layer and a cathode layer. A cooling layer is disposed adjacent the fuel cell assembly. Each layer comprises channels for directing a fluid stream from an inlet to a an outlet. The coolant stream channels extend such that, in operation, the coolest region of the cooling layer coincides with the region of the cathode layer having the highest concentration of oxygen (and/or the lowest water content), and the warmest region of the cooling layer coincides with the region of the cathode layer having the lowest concentration of oxygen (and/or the highest water content). The fuel stream channels extend such that, in operation, the fuel stream is directed to a region of the anode layer which coincides with the region of the cathode layer in which the oxidant stream has the lowest concentration of oxygen (and/or the highest water content) and is subsequently directed to a region of the anode layer which coincides with the region of the cathode layer in which the oxidant stream has the highest concentration of oxygen (and/or the lowest water content).

摘要翻译： 电化学燃料电池堆内的燃料电池组件具有阳极层和阴极层。 冷却层设置在燃料电池组件附近。 每个层包括用于将流体流从入口引导到出口的通道。 冷却剂流通道延伸，使得在操作中，冷却层的最冷区域与具有最高氧浓度（和/或最低含水量）的阴极层的区域重合，并且冷却层的最热区域 与具有最低浓度氧（和/或最高含水量）的阴极层的区域重合。 燃料流通道延伸，使得在操作中，燃料流被引导到阳极层的与氧化剂流具有最低浓度氧（和/或最高水）的阴极层的区域重合的区域 含量），并且随后被引导到阳极层的与氧化剂流具有最高氧浓度（和/或最低水含量）的阴极层的区域重合的区域。

公开(公告)号：US5763765A

公开(公告)日：1998-06-09

申请号：US719342

申请日：1996-09-25

申请人： Gordon J. Lamont ,  David P. Wilkinson

发明人： Gordon J. Lamont ,  David P. Wilkinson

IPC分类号： B01D65/10 ,  H01M2/14 ,  H01M8/02 ,  G01M3/04

CPC分类号： B01D65/102 ,  H01M2/14 ,  H01M8/0289

摘要： A method and apparatus detects and locates perforations in membranes used in electrochemical cells. The membrane has first and second oppositely facing major planar surfaces. The first surface is exposed to a first reactant fluid, preferably a gaseous mixture comprising hydrogen, while the second surface is exposed to a second reactant fluid, preferably ambient air comprising oxygen. The first and second reactant fluids are substantially fluidly isolated from each other by the membrane when no perforations are present in the membrane. The first reactant fluid contacts the second reactant fluid when at least one perforation is present in the membrane. The first and second reactant fluids exothermically react upon contact, preferably in the presence of a catalyst, to generate heat, which is then detected using an infrared thermal detector or thermal imaging device or a layer of thermally sensitive film positioned in proximity with the membrane.

摘要翻译： 一种方法和装置检测并定位在电化学电池中使用的膜中的穿孔。 膜具有第一和第二相对面的主平面。 第一表面暴露于第一反应物流体，优选包含氢气的气体混合物，而第二表面暴露于第二反应物流体，优选包含氧的环境空气。 当膜中没有穿孔时，第一和第二反应物流体通过膜基本上流体地隔离。 当膜中存在至少一个穿孔时，第一反应物流体接触第二反应物流体。 第一和第二反应物流体在接触时放热反应，优选在催化剂存在下放热反应产生热量，然后使用红外热检测器或热成像装置或位于膜附近的热敏膜层进行检测。

公开(公告)号：US5432021A

公开(公告)日：1995-07-11

申请号：US126525

申请日：1993-09-24

申请人： David P. Wilkinson ,  Henry H. Voss ,  James Dudley ,  Gordon J. Lamont ,  Vesna Basura

发明人： David P. Wilkinson ,  Henry H. Voss ,  James Dudley ,  Gordon J. Lamont ,  Vesna Basura

IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J8/06 ,  C01B3/32 ,  C01B3/56 ,  C01B3/58 ,  C01B32/50 ,  C10K3/04 ,  H01M8/02 ,  H01M8/06 ,  H01M8/24 ,  H01M8/04

CPC分类号： H01M8/0263 ,  C01B3/583 ,  C10K3/04 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/0612 ,  H01M8/0625 ,  H01M8/0662 ,  H01M8/241 ,  C01B2203/044 ,  C01B2203/047 ,  H01M2300/0082 ,  H01M8/025

摘要： A method and apparatus oxidizes the carbon monoxide present in an incoming reactant fuel stream and/or carbon monoxide produced by the reverse water-shift reaction to carbon dioxide in a reactant stream introduced to an electrochemical fuel cell. The reactant stream comprises hydrogen, carbon dioxide and carbon monoxide. A first oxygen-containing gas stream is introduced into the reactant stream through a first port disposed between the reactant stream inlet and the reactant stream outlet. A further oxygen-containing gas stream is introduced into the reactant stream through at least one secondary port located between the first port and the reactant stream outlet.

摘要翻译： 一种方法和装置将进入的反应物燃料流中存在的一氧化碳和/或通过反向水分转换反应产生的一氧化碳氧化成引入电化学燃料电池的反应物流中的二氧化碳。 反应物流包括氢气，二氧化碳和一氧化碳。 通过设置在反应物流入口和反应物流出口之间的第一端口将第一含氧气流引入反应物流中。 通过位于第一端口和反应物流出口之间的至少一个次级端口将另外的含氧气流引入反应物流中。

公开(公告)号：US5366818A

公开(公告)日：1994-11-22

申请号：US970614

申请日：1992-11-03

申请人： David P. Wilkinson ,  Henry H. Voss ,  David S. Watkins ,  Keith B. Prater

发明人： David P. Wilkinson ,  Henry H. Voss ,  David S. Watkins ,  Keith B. Prater

IPC分类号： H01M8/06 ,  H01M8/04 ,  H01M8/10 ,  H01M8/00

CPC分类号： H01M8/04156 ,  H01M8/04029 ,  H01M8/1007 ,  H01M2300/0082 ,  H01M8/04097 ,  H01M8/04231 ,  H01M8/04291

摘要： A solid polymer fuel cell electric power generation system removes a substantial portion of water accumulated at the cathode in the outlet fuel stream of the anode. The system permits the operation of a hydrogen/oxygen fuel cell in a dead-ended mode where substantially pure oxygen is employed as the oxidant supply or using low oxygen stoichiometry where a dilute oxidant source, such as oxygen-containing air, is employed as the oxidant supply. The system thereby eliminates the need for an oxygen recirculation pump in systems operating on substantially pure oxygen, and substantially reduces the parasitic load to pressurize the oxidant stream in systems operating on dilute oxidant streams.

摘要翻译： 固体聚合物燃料电池发电系统除去积聚在阳极的出口燃料流中阴极的大部分水。 该系统允许以死端模式操作氢/氧燃料电池，其中使用基本上纯氧作为氧化剂供应或使用低氧化学计量，其中使用稀释氧化剂源（例如含氧空气）作为 氧化剂供应。 因此，该系统消除了在基本上纯氧上操作的系统中需要氧再循环泵，并且基本上减少了在稀释氧化剂流上运行的系统中对氧化剂流进行加压的寄生负载。