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    INEXPENSIVE APPROACH FOR COATING BIPOLAR PLATES FOR PEM FUEL CELLS
    61.
    发明申请
    INEXPENSIVE APPROACH FOR COATING BIPOLAR PLATES FOR PEM FUEL CELLS 有权
    用于涂覆PEM燃料电池的双极板的独立方法

    公开(公告)号：US20080138687A1

    公开(公告)日：2008-06-12

    申请号：US11562597

    申请日：2006-11-22

    申请人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Gayatri Vyas Dadheech

    发明人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Gayatri Vyas Dadheech

    IPC分类号： H01M8/00 ,  H01M2/00 ,  B05D5/12 ,  B05D3/10 ,  B05D3/12 ,  B05D3/06 ,  B05D3/00

    CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M2008/1095

    摘要： A metallic bipolar plate for use in a fuel cell includes a metallic bipolar plate having one or more channels and a contact surface. The contact surface has a surface roughness defined by a plurality of peaks and valleys wherein at least a portion of the valleys are filled with an electrically conductive material. The contact surface is adapted to contact the anode diffusion layer or the cathode diffusion layer such that the contact resistance occurring at this surface is lower than when the electrically conductive material is not present. A fuel cell incorporating the metallic bipolar plate is also provided.

    摘要翻译： 用于燃料电池的金属双极板包括具有一个或多个通道和接触表面的金属双极板。 接触表面具有由多个峰和谷限定的表面粗糙度，其中至少一部分谷被填充有导电材料。 接触表面适于接触阳极扩散层或阴极扩散层，使得在该表面发生的接触电阻低于不存在导电材料时的接触电阻。 还提供并入金属双极板的燃料电池。

    Fast recycling process for ruthenium, gold and titanium coatings from hydrophilic PEM fuel cell bipolar plates
    65.
    发明授权
    Fast recycling process for ruthenium, gold and titanium coatings from hydrophilic PEM fuel cell bipolar plates 有权
    从亲水PEM燃料电池双极板钌，金和钛涂层的快速回收过程

    公开(公告)号：US08323415B2

    公开(公告)日：2012-12-04

    申请号：US11463614

    申请日：2006-08-10

    申请人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Richard H. Blunk

    发明人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Richard H. Blunk

    IPC分类号： C23G1/02

    CPC分类号： H01M8/008 ,  C22B7/007 ,  C22B11/046 ,  C22B34/124 ,  H01M8/0206 ,  Y02P10/214 ,  Y02P10/234 ,  Y02W30/86

    摘要： A method for recovering ruthenium oxide or gold and titanium or titanium oxide from a bipolar plate at the end of the life of a fuel cell stack so as to use these materials in other fuel cell stacks thereafter. The bipolar plate is immersed in a solution including a suitable acid that dissolves the titanium or titanium oxide. The ruthenium oxide or gold will be released from the plate and will float on the solution from which it can be removed. The solution is then heated to evaporate the acid solution leaving a powder of the titanium oxide. The stainless steel of the bipolar plate is thus cleaned of the titanium or titanium oxide, and can be reused.

    摘要翻译： 在燃料电池堆的寿命结束时从双极板回收氧化钌或金和钛或氧化钛的方法，以便此后在其它燃料电池堆中使用这些材料。 将双极板浸入包括溶解钛或氧化钛的合适的酸的溶液中。 氧化钌或金将从板上释放并漂浮在可从中除去的溶液上。 然后将溶液加热以蒸发酸溶液，留下氧化钛粉末。 因此，双极板的不锈钢被清除钛或氧化钛，并且可以重复使用。

    Joining of bipolar plates in proton exchange membrane fuel cell stacks
    66.
    发明授权
    Joining of bipolar plates in proton exchange membrane fuel cell stacks 有权
    在质子交换膜燃料电池堆中连接双极板

    公开(公告)号：US06887610B2

    公开(公告)日：2005-05-03

    申请号：US10347890

    申请日：2003-01-21

    申请人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Richard H. Blunk ,  Daniel J. Lisi

    发明人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Richard H. Blunk ,  Daniel J. Lisi

    IPC分类号： H01M20060101 ,  H01M2/00 ,  H01M2/08 ,  H01M2/14 ,  H01M8/02 ,  H01M8/04

    CPC分类号： H01M8/0228 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0263 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/0273 ,  H01M8/2404 ,  H01M8/241 ,  H01M8/2483

    摘要： A bipolar plate assembly for a proton exchange membrane fuel cell stack advantageously connects electrically conductive plate surfaces, without the requirement to weld or braze the plate pairs. Each plate has alternating coolant channels and lands formed on an inside facing surface. An electrically conductive layer is deposited over at least the coolant channels and lands. Pairs of plates are aligned having facing electrically conductive layers. A fluid seal is disposed between the inside facing surfaces about a perimeter of the coolant channels. Each plate pair is compressed to form a plurality of electrical bond lines between adjacent lands within the perimeter seal. The perimeter seal prevents stack reactant gas oxygen from contacting and oxidizing the electrically conductive layer. A dielectric coolant is also used to reduce oxidation of the electrically conductive layer.

    摘要翻译： 用于质子交换膜燃料电池堆的双极板组件有利地连接导电板表面，而不需要焊接或钎焊板对。 每个板具有形成在面向内侧的表面上的交替的冷却剂通道和平台。 在至少冷却剂通道和焊盘上沉积导电层。 一对板对准具有面向导电层。 流体密封件围绕冷却剂通道的周边布置在面向内的表面之间。 每个板对被压缩以在周边密封件内的相邻平台之间形成多个电接合线。 周边密封件防止堆叠反应物气体氧气接触并氧化导电层。 电介质冷却剂也用于减少导电层的氧化。

    Fast Recycling Process For Ruthenium, Gold and Titanium Coatings From Hydrophilic PEM Fuel Cell Bipolar Plates
    67.
    发明申请
    Fast Recycling Process For Ruthenium, Gold and Titanium Coatings From Hydrophilic PEM Fuel Cell Bipolar Plates 有权
    从亲水PEM燃料电池双极板的钌，金和钛涂层的快速回收过程

    公开(公告)号：US20080038625A1

    公开(公告)日：2008-02-14

    申请号：US11463614

    申请日：2006-08-10

    申请人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Richard H. Blunk

    发明人： Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Richard H. Blunk

    IPC分类号： H01M10/42 ,  B29C73/00

    CPC分类号： H01M8/008 ,  C22B7/007 ,  C22B11/046 ,  C22B34/124 ,  H01M8/0206 ,  Y02P10/214 ,  Y02P10/234 ,  Y02W30/86

    摘要： A method for recovering ruthenium oxide or gold and titanium or titanium oxide from a bipolar plate at the end of the life of a fuel cell stack so as to use these materials in other fuel cell stacks thereafter. The bipolar plate is immersed in a solution including a suitable acid that dissolves the titanium or titanium oxide. The ruthenium oxide or gold will be released from the plate and will float on the solution from which it can be removed. The solution is then heated to evaporate the acid solution leaving a powder of the titanium oxide. The stainless steel of the bipolar plate is thus cleaned of the titanium or titanium oxide, and can be reused.

    摘要翻译： 在燃料电池堆的寿命结束时从双极板回收氧化钌或金和钛或氧化钛的方法，以便此后在其它燃料电池堆中使用这些材料。 将双极板浸入包括溶解钛或氧化钛的合适的酸的溶液中。 氧化钌或金将从板上释放并漂浮在可从中除去的溶液上。 然后将溶液加热以蒸发酸溶液，留下氧化钛粉末。 因此，双极板的不锈钢被清除钛或氧化钛，并且可以重复使用。

    Fuel cell dielectric coolant and evaporative cooling process using same
    69.
    发明授权
    Fuel cell dielectric coolant and evaporative cooling process using same 有权
    燃料电池介质冷却液和蒸发冷却过程使用相同

    公开(公告)号：US07452617B2

    公开(公告)日：2008-11-18

    申请号：US10737508

    申请日：2003-12-16

    申请人： Richard H. Blunk ,  Mahmoud H. Abd Elhamid ,  Daniel John Lisi ,  Youssef M. Mikhail

    发明人： Richard H. Blunk ,  Mahmoud H. Abd Elhamid ,  Daniel John Lisi ,  Youssef M. Mikhail

    IPC分类号： H01M8/00 ,  H01M8/04 ,  H01M8/12 ,  C09K5/00 ,  C09K5/04

    CPC分类号： H01M8/04029 ,  C09K5/10 ,  H01M8/04097 ,  H01M2250/20 ,  Y02T90/32

    摘要： The present invention is directed to a fuel cell dielectric coolant and evaporative cooling process using same. The coolant comprises an emulsion that defines a polar internal phase and a hydrocarbon external phase. The polar internal phase comprises an azeotropic mixture that includes one or more polar compounds selected from water, alcohol, or combinations thereof. The fuel cell is configured to react fuel with oxygen to generate an electric current and at least one reaction product, and comprises an electrochemical catalytic reaction cell configured to include a fuel flowpath, an oxygen flowpath, and a coolant flowpath fluidly decoupled from the fuel and oxygen flowpaths, and which defines a coolant isolation manifold including the fluid dielectric coolant described above. The method of cooling a fuel cell comprises, inter alia, evaporating the polar internal phase of the fluid dielectric coolant emulsion in the coolant isolation manifold.

    摘要翻译： 本发明涉及使用其的燃料电池介质冷却剂和蒸发冷却方法。 冷却剂包含限定极性内相和烃外相的乳液。 极性内相包含共沸混合物，其包含一种或多种选自水，醇或其组合的极性化合物。 燃料电池被配置为使燃料与氧气反应以产生电流和至少一个反应产物，并且包括电化学催化反应池，其被配置为包括燃料流路，氧气流路和与燃料流体分离的冷却剂流路， 氧气流路，并且其限定了包括上述流体介电冷却剂的冷却剂隔离歧管。 冷却燃料电池的方法尤其包括蒸发冷却剂隔离歧管中流体电介质冷却剂乳液的极性内相。