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71.发明授权公开(公告)号：US08778562B2
公开(公告)日：2014-07-15
申请号：US13493113
申请日：2012-06-11
申请人： Michael P. Balogh , Gayatri Vyas Dadheech , Nicholas P. Irish , Misle M. Tessema , Daniel P. Miller , Mahmoud H. Abd Elhamid
发明人： Michael P. Balogh , Gayatri Vyas Dadheech , Nicholas P. Irish , Misle M. Tessema , Daniel P. Miller , Mahmoud H. Abd Elhamid
CPC分类号： C25D3/48 , C25D5/50 , H01M8/0206 , H01M8/0228
摘要： A method of depositing a thin gold coating on bipolar plate substrates for use in fuel cells includes depositing a gold coating onto at least one surface of the bipolar plate substrate followed by annealing the gold coating at a temperature between about 200° C. to 500° C. The annealed gold coating has a reduced porosity in comparison with a coating which has not been annealed, and provides improved corrosion resistance to the underlying metal comprising the bipolar plate.
摘要翻译： 在用于燃料电池的双极板基板上沉积薄金涂层的方法包括将金涂层沉积在双极板基板的至少一个表面上，然后在约200℃至500℃的温度下退火金涂层 与未经退火的涂层相比，退火的金涂层具有降低的孔隙率，并且对包含双极板的底层金属提供改善的耐腐蚀性。
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公开(公告)号：US08492053B2
公开(公告)日：2013-07-23
申请号：US12861261
申请日：2010-08-23
IPC分类号： H01M8/04
CPC分类号： H01M8/0213 , C23C14/0605 , C23C14/5826 , C23C14/5846 , H01M8/0206 , H01M8/0228 , H01M2008/1095
摘要： A flow field plate having a low resistance coating for fuel cell applications is described. In one embodiment, the flow field plate includes a metal plate having a first surface and a second surface, the first surface defining a plurality of channels for directing flow of a first gaseous composition; and an activated carbon coating disposed adjacent to at least a portion of the plate, the activated carbon coating having a surface resistance of less than about 20 mΩ·cm2, the surface resistance being stable. Fuel cells incorporating the flow field plates and methods of making the flow field plates are also described.
摘要翻译： 描述了具有用于燃料电池应用的低电阻涂层的流场板。 在一个实施例中，流场板包括具有第一表面和第二表面的金属板，第一表面限定用于引导第一气态组合物流动的多个通道; 以及邻近所述板的至少一部分设置的活性炭涂层，所述活性炭涂层的表面电阻小于约20mOm 2·cm 2，所述表面电阻是稳定的。 还描述了结合流场板的燃料电池和制造流场板的方法。
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公开(公告)号：US07955754B2
公开(公告)日：2011-06-07
申请号：US10895249
申请日：2004-07-20
CPC分类号： C23C14/165 , B32B15/015 , B32B15/018 , C23C14/584 , H01M8/0206 , H01M8/0208 , H01M8/021 , H01M8/0228 , Y10T428/12951
摘要： An enhanced stability and inexpensive bipolar plate for a fuel cell is disclosed. The enhanced stability bipolar plate includes a bipolar plate substrate and a corrosion-resistant coating provided on the bipolar plate substrate. A method for enhancing corrosion resistance of a bipolar plate is also disclosed.
摘要翻译： 公开了一种用于燃料电池的增强的稳定性和廉价的双极板。 增强的稳定性双极板包括双极板基板和设置在双极板基板上的耐腐蚀涂层。 还公开了一种用于增强双极板的耐腐蚀性的方法。
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74.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
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。
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75.发明授权公开(公告)号：US06887610B2
公开(公告)日：2005-05-03
申请号：US10347890
申请日：2003-01-21
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。
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76.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
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。
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77.发明申请Method for making a hydrophilic corrosion resistant coating on low grade stainless steel/alloys for bipolar plates 审中-公开在低档不锈钢/双极板合金上制造亲水性耐腐蚀涂层的方法公开(公告)号：US20070287057A1
公开(公告)日：2007-12-13
申请号：US11450793
申请日：2006-06-09
CPC分类号： C23C26/00 , C23C10/02 , H01M8/0204 , H01M8/0206 , H01M8/021 , H01M8/0228 , H01M8/0258 , H01M8/0267 , H01M8/2457 , Y02P70/56 , Y10T428/2457
摘要： A stainless steel flow field plate for a fuel cell that includes a layer of titanium or titanium oxide and a layer of titanium oxide/ruthenium oxide that makes the plate conductive and hydrophilic. In one embodiment, titanium is deposited on the surface of a stainless steel bipolar plate as a metal or an oxide using a suitable process, such as PVD or CVD. A solution of ruthenium chloride in ethanol is brushed on the titanium layer. The plate is then calcinated to provide a dimensionally stable titanium oxide/ruthenium oxide layer on the stainless steel that is hydrophilic and electrically conductive in the fuel cell environment.
摘要翻译： 一种用于燃料电池的不锈钢流场板，其包括钛或氧化钛层和氧化钛/氧化钌层，其使得该导电性和亲水性。 在一个实施例中，使用合适的工艺（例如PVD或CVD）将钛作为金属或氧化物沉积在不锈钢双极板的表面上。 将氯化钌在乙醇中的溶液刷在钛层上。 然后将板煅烧以在不锈钢上提供在燃料电池环境中亲水和导电的尺寸稳定的氧化钛/氧化钌层。
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公开(公告)号：US06827747B2
公开(公告)日：2004-12-07
申请号：US10074913
申请日：2002-02-11
IPC分类号： H01M600
CPC分类号： H01M8/0228 , H01M8/0206 , H01M8/0213 , H01M8/0221 , H01M8/0226 , H01M8/0247 , H01M8/0256 , H01M8/0267 , H01M8/04007 , H01M8/241 , Y02P70/56 , Y10T29/49108 , Y10T83/0304 , Y10T428/24994 , Y10T428/249945
摘要： A composite separator plate for use in a fuel cell stack and method of manufacture is provided. The composite separator plate includes a plurality of elongated support members oriented generally parallel to each other and a polymeric body portion formed around the support members. The body portion includes a first surface with a plurality of flow channels and a second surface opposite the first surface. A plurality of electrically conductive fibers are disposed within the polymeric body portion, each fiber extending continuously from the first surface of the polymeric body portion to the second surface of the polymeric body portion in a through plane configuration.
摘要翻译： 提供了一种用于燃料电池堆的复合隔板及其制造方法。 复合隔板包括大致平行地定向的多个细长的支撑构件和围绕支撑构件形成的聚合物主体部分。 主体部分包括具有多个流动通道的第一表面和与第一表面相对的第二表面。 多个导电纤维设置在聚合物主体部分内，每个纤维以透视构型从聚合物主体部分的第一表面连续延伸到聚合物主体部分的第二表面。
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79.发明授权公开(公告)号：US07452617B2
公开(公告)日：2008-11-18
申请号：US10737508
申请日：2003-12-16
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。
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公开(公告)号：US08834734B2
公开(公告)日：2014-09-16
申请号：US13153844
申请日：2011-06-06
IPC分类号： C03C15/00
CPC分类号： C25F3/06 , C23F1/00 , H01M8/021 , H01M2008/1095
摘要： One aspect of the invention is a method of surface alloying stainless steel, In one embodiment, the method includes providing a stainless steel surface having an initial amount of iron and an initial amount of chromium; and preferentially removing iron from the stainless steel surface to obtain a surface having an amount of iron less than the initial amount of iron and an amount of chromium greater than the initial amount of chromium. Another aspect of the invention is a unitary stainless steel article.
摘要翻译： 本发明的一个方面是表面合金化不锈钢的方法。在一个实施方案中，该方法包括提供具有初始量的铁和初始量的铬的不锈钢表面; 优先从不锈钢表面除去铁，得到铁量少于铁的初始量，铬的量比铬的初始量多的表面。 本发明的另一方面是整体不锈钢制品。
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