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公开(公告)号：US07699936B2
公开(公告)日：2010-04-20
申请号：US11166683
申请日：2005-06-24
IPC分类号： H01M8/02
CPC分类号： C11D7/10 , C11D11/0029 , C23G1/081 , C23G1/086 , H01M8/021 , H01M8/0254 , H01M8/0258 , H01M2008/1095
摘要： The present invention provides an electrically conductive element for a proton exchange membrane fuel cell having low electrical contact resistance and high corrosion resistance. The conductive element comprises a corrosion susceptible metal substrate with a surface, which is preferably treated to activate the surface (i.e. to remove a passivation layer of oxides from the surface) with an acidic treatment solution. The treated surface is then overlaid with an electrically conductive, corrosion-resistant, protective coating to protect the substrate re-forming a passivation layer while exposed to the corrosive environment of the fuel cell. The present invention also provides methods of preparing an electrically conductive element to have low electrical contact resistance and high corrosion resistance.
摘要翻译： 本发明提供了具有低电接触电阻和高耐腐蚀性的质子交换膜燃料电池用导电元件。 导电元件包括具有表面的耐腐蚀金属基底，优选用酸性处理溶液处理以活化表面（即从表面除去氧化物钝化层）。 然后将经处理的表面覆盖有导电的耐腐蚀的保护涂层，以在暴露于燃料电池的腐蚀环境的同时保护衬底重新形成钝化层。 本发明还提供了制备具有低电接触电阻和高耐腐蚀性的导电元件的方法。
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2.发明授权公开(公告)号：US07261963B2
公开(公告)日：2007-08-28
申请号：US10292407
申请日：2002-11-12
CPC分类号： H01M4/663 , H01M4/624 , H01M4/625 , H01M8/0206 , H01M8/021 , H01M8/0213 , H01M8/0226 , H01M8/0228
摘要： Embodiments of an electrically conductive fluid distribution plate are provided, wherein the electrically conductive fluid distribution plate comprises a plate body defining a set of fluid flow channels configured to distribute flow of a fluid across at least one side of said plate, and a coating adhered to the plate in an area of the plate including the fluid flow channels defined by the plate body. The coating comprises expanded graphite comprising less than about 0.01% by weight of impurities. The coating also comprises less than about 10% by weight expanded graphite plus carbon black, and about 70% to about 95% by wt. binder, wherein the binder is comprised of a polymeric resin.
摘要翻译： 提供了导电流体分配板的实施例，其中导电流体分配板包括板主体，该板主体限定一组流体流动通道，该流体流动通道被配置为分配流体流过所述板的至少一侧，并且涂层粘附到 板的区域中的板包括由板体限定的流体流动通道。 涂层包括包含小于约0.01重量％的杂质的膨胀石墨。 涂层还包含小于约10重量％的膨胀石墨加炭黑，和约70重量％至约95重量％。 粘合剂，其中粘合剂由聚合物树脂组成。
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公开(公告)号：US20060275643A1
公开(公告)日：2006-12-07
申请号：US11142583
申请日：2005-06-01
CPC分类号： H01M8/0228 , H01M8/0206 , H01M8/0221 , H01M8/0226 , H01M8/04119 , H01M8/04231 , Y02P70/56
摘要： A fuel cell electroconductive element, or bipolar plate, that includes a substrate with a cationic or anionic exchange resin coating deposited thereon, and a method for making the same. The bipolar plate has a fluid flow field formed therein. The ion-exchange polymer is preferably deposited on a region of the surface of the substrate by a process of dip coating or spraying. The resin coating is substantially hydrophobic in nature when dry and substantially hydrophilic when wet.
摘要翻译： 包括沉积有阳离子或阴离子交换树脂涂层的基板的燃料电池导电元件或双极板及其制造方法。 双极板具有形成在其中的流体流场。 离子交换聚合物优选通过浸涂或喷涂的方法沉积在基材表面的区域上。 当干燥时，树脂涂层本质上基本上是疏水性的，当湿时基本上是亲水的。
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4.发明申请Metal oxide based hydrophilic coatings for PEM fuel cell bipolar plates 审中-公开用于PEM燃料电池双极板的金属氧化物基亲水涂层公开(公告)号：US20060216571A1
公开(公告)日：2006-09-28
申请号：US11089526
申请日：2005-03-24
申请人： Gayatri Vyas , Mahmoud Abd Elhamid , Thomas Trabold , Keith Newman , Richard Blunk , Youssef Mikhail , Reena Datta
发明人： Gayatri Vyas , Mahmoud Abd Elhamid , Thomas Trabold , Keith Newman , Richard Blunk , Youssef Mikhail , Reena Datta
CPC分类号： H01M8/0228 , H01M8/0204 , H01M8/0206 , H01M8/021 , H01M8/0213 , H01M8/0226
摘要： A flow field plate for a fuel cell that includes a metal oxide coating that makes the plate hydrophilic. In one embodiment, the metal oxide coating is a thin film to maintain the conductive properties of the flow field plate. The metal oxide can be combined with a conductive oxide. According to another embodiment, the metal oxide coating is deposited as islands on the flow field plate so that the flow field plate is exposed between the islands. According to another embodiment, lands between the flow channels are polished to remove the metal oxide layer and expose the flow field plate. According to another embodiment, the flow field plate is blasted with alumina so that embedded alumina particles and the roughened surface of the plate provide the hydrophilicity.
摘要翻译： 一种用于燃料电池的流场板，其包括使板成为亲水性的金属氧化物涂层。 在一个实施例中，金属氧化物涂层是维持流场板的导电性能的薄膜。 金属氧化物可与导电氧化物组合。 根据另一个实施例，金属氧化物涂层作为岛状沉积在流场板上，使得流场板在岛之间暴露。 根据另一个实施例，抛光流动通道之间的平台以去除金属氧化物层并暴露流场板。 根据另一个实施例，用氧化铝喷射流场板，使得嵌入的氧化铝颗粒和板的粗糙表面提供亲水性。
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5.发明申请Water management properties of pem fuel cell bipolar plates using carbon nano tube coatings 审中-公开使用碳纳米管涂层的pem燃料电池双极板的水管理性能公开(公告)号：US20070238006A1
公开(公告)日：2007-10-11
申请号：US11215105
申请日：2005-08-30
申请人： Gayatri Vyas , Mahmoud Elhamid , Youssef Mikhail
发明人： Gayatri Vyas , Mahmoud Elhamid , Youssef Mikhail
CPC分类号： H01M8/0228 , H01M8/0206 , H01M8/021 , H01M8/0213 , H01M8/0221 , H01M8/0226 , H01M8/0234 , H01M2008/1095 , H01M2250/20 , Y02T90/32
摘要： A flow field plate or bipolar plate for a fuel cell that includes a carbon nano tube or carbon nano fiber coating that makes the bipolar plate conductive hydrophilic. Further, the carbon nano tube or carbon nano fiber coating is stable in the fuel cell environment and does not corrode.
摘要翻译： 一种用于燃料电池的流场板或双极板，其包括使双极板导电亲水的碳纳米管或碳纳米纤维涂层。 此外，碳纳米管或碳纳米纤维涂层在燃料电池环境中是稳定的并且不会腐蚀。
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6.发明申请公开(公告)号：US20070092780A1
公开(公告)日：2007-04-26
申请号：US11536061
申请日：2006-09-28
申请人： Gayatri Vyas , Thomas Trabold , Mahmoud Abd Elhamid , Youssef Mikhail , Roy Gordon , Dawen Pang
发明人： Gayatri Vyas , Thomas Trabold , Mahmoud Abd Elhamid , Youssef Mikhail , Roy Gordon , Dawen Pang
CPC分类号： C23C16/06 , C23C16/34 , C23C16/405 , C23C16/56 , H01M8/0206 , H01M8/0228 , H01M8/0236
摘要： A fuel cell component having a coating thereon including binary and ternary nitrides and oxynitrides of elements of IVb and Vb groups of the periodic table of elements.
摘要翻译： 一种在其上具有涂层的燃料电池组件，包括元素周期表的IVb和Vb族元素的二元和三元氮化物和氮氧化物。
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7.发明申请Hybrid electrically conductive fluid distribution separator plate assembly for fuel cells 有权用于燃料电池的混合导电流体分配分离器板组件公开(公告)号：US20070048588A1
公开(公告)日：2007-03-01
申请号：US11215394
申请日：2005-08-30
申请人： Mahmoud Abd Elhamid , Youssef Mikhail , Richard Blunk , John Owens , Daniel Lisi , Gayatri Vyas
发明人： Mahmoud Abd Elhamid , Youssef Mikhail , Richard Blunk , John Owens , Daniel Lisi , Gayatri Vyas
CPC分类号： H01M8/0267 , H01M8/021 , H01M8/0221 , H01M8/0226 , H01M2008/1095 , H01M2250/20 , Y02P70/56 , Y02T90/32 , Y10T428/31678
摘要： In at least one embodiment, the present invention provides an electrically conductive fluid distribution separator plate assembly, a method of making, and a system for using, the electrically conductive fluid distribution separator plate assembly. In at least one embodiment, the electrically conductive fluid distribution separator plate assembly comprises a metallic cathode plate having opposed surfaces and a first contact resistance, a polymeric composite anode plate adjacent to the metallic cathode plate, and a low contact resistance coating located on at least one of the surfaces of the plates, with the coating having a second contact resistance, less-than the first contact resistance.
摘要翻译： 在至少一个实施例中，本发明提供一种导电流体分配分离器板组件，制造方法以及使用该导电流体分配分离板组件的系统。 在至少一个实施例中，导电流体分配分离器板组件包括具有相对表面和第一接触电阻的金属阴极板，与金属阴极板相邻的聚合物复合阳极板和至少位于至少 板的一个表面，其中涂层具有小于第一接触电阻的第二接触电阻。
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8.发明申请公开(公告)号：US20060240306A1
公开(公告)日：2006-10-26
申请号：US11112220
申请日：2005-04-22
CPC分类号： H01M8/0282 , H01M8/0273 , Y10T428/30
摘要： A gasket formed of compressed graphite that is resistant to, damage, freezing, and high temperatures. The gasket provides advantages in fuel cells.
摘要翻译： 由压缩石墨形成的垫圈，耐受，损坏，冷冻和高温。 垫片在燃料电池中提供了优势。
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9.发明申请公开(公告)号：US20050130004A1
公开(公告)日：2005-06-16
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：US20070207364A1
公开(公告)日：2007-09-06
申请号：US11368057
申请日：2006-03-03
CPC分类号： H01M8/0273 , H01M8/0284 , Y02P70/56 , Y10T29/4911
摘要： Devices comprising an electrochemical conversion assembly comprise a plurality of electrochemical conversion cells, and a plurality of electrically conductive bipolar plates, wherein the electrochemical conversion cells are disposed between the adjacent bipolar plates. The electrochemical conversion assembly further comprises a plurality of conversion assembly gaskets, wherein the respective conversion assembly gaskets are molded onto corresponding ones of the plurality of bipolar plates. The conversion assembly gaskets comprise a mixture including polyvinylidene fluoride (PVDF).
摘要翻译： 包括电化学转化组件的装置包括多个电化学转换电池和多个导电双极板，其中电化学转换电池设置在相邻的双极板之间。 电化学转化组件还包括多个转换组件垫圈，其中相应的转换组件垫圈被模制到多个双极板中的相应的一个双极板上。 转换组件垫片包括包含聚偏二氟乙烯（PVDF）的混合物。
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