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71 条记录 (耗时 0.044 秒)

    CO-DEPOSITION OF CONDUCTIVE MATERIAL AT THE DIFFUSION MEDIA/PLATE INTERFACE
    61.
    发明申请
    CO-DEPOSITION OF CONDUCTIVE MATERIAL AT THE DIFFUSION MEDIA/PLATE INTERFACE 有权
    导电材料在扩散介质/平板界面上的沉积

    公开(公告)号：US20110189580A1

    公开(公告)日：2011-08-04

    申请号：US12699968

    申请日：2010-02-04

    申请人： Paul D. Nicotera ,  Chunxin Ji ,  Thomas A. Trabold

    发明人： Paul D. Nicotera ,  Chunxin Ji ,  Thomas A. Trabold

    IPC分类号： H01M8/10 ,  H01M4/88

    CPC分类号： H01M4/88 ,  H01M8/10 ,  Y02E60/521

    摘要： A method of depositing a conductive material is described. The method includes: providing a plate selected from anode plates, cathode plates, bipolar plates, or combinations thereof, wherein the plate includes gas flow channels; providing a diffusion media in contact with the gas flow channel side of the plate to form an assembly; introducing a gaseous precursor of the conductive material into the assembly using a chemical vapor infiltration process; infiltrating the gaseous precursor into the diffusion media and gas flow channels of the plates; and depositing a coating of the conductive material on the diffusion media, the gas flow channels of the plate, or both. An assembly having a CVI conductive coating and a fuel cell incorporating the diffusion media having the CVI conductive coating are also described.

    摘要翻译： 描述了一种沉积导电材料的方法。 该方法包括：提供从阳极板，阴极板，双极板或其组合中选择的板，其中板包括气体流动通道; 提供与板的气体流动通道侧接触的扩散介质以形成组件; 使用化学气相渗透方法将导电材料的气态前体引入组件; 将气态前体渗透到板的扩散介质和气体流动通道中; 以及将导电材料的涂层沉积在扩散介质，板的气体流动通道或两者上。 还描述了具有CVI导电涂层和掺入具有CVI导电涂层的扩散介质的燃料电池的组件。

    Surface engineering of bipolar plate materials for better water management
    63.
    发明授权
    Surface engineering of bipolar plate materials for better water management 有权
    双极板材料的表面工程，以实现更好的水处理

    公开(公告)号：US07897295B2

    公开(公告)日：2011-03-01

    申请号：US11313161

    申请日：2005-12-20

    申请人： Gayatri Vyas ,  Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Thomas A. Trabold

    发明人： Gayatri Vyas ,  Mahmoud H. Abd Elhamid ,  Youssef M. Mikhail ,  Thomas A. Trabold

    IPC分类号： H01M8/04

    CPC分类号： H01M8/0204 ,  H01M8/0206 ,  H01M8/021 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/0228 ,  H01M8/04291 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

    摘要： A flow field plate or bipolar plate for a fuel cell, where a surface of the flow field plate is textured or roughened to change the surface morphology of the plate. A conductive coating is deposited on the roughened surface where the roughness of the surface of the plate increases the hydrophilic nature of the coating. Therefore, if the coating is naturally hydrophobic, the surface roughness makes the coating hydrophilic to wick water away. If the coating is a conductive hydrophilic coating, then the surface roughness makes the coating super-hydrophilic, and may counter the effects of surface contamination that would act to make the hydrophilic coating less hydrophilic.

    摘要翻译： 用于燃料电池的流场板或双极板，其中流场板的表面被纹理化或粗糙化以改变板的表面形态。 导电涂层沉积在粗糙表面上，其中板的表面的粗糙度增加了涂层的亲水性。 因此，如果涂层是天然疏水性的，则表面粗糙度使得涂层具有亲水性以吸水。 如果涂层是导电亲水涂层，则表面粗糙度使得涂层具有超亲水性，并且可以抵消表面污染的作用，从而使亲水涂层的亲水性降低。

    Hydrophilic fuel cell bipolar plate having a plasma induced polymerization coating
    65.
    发明授权
    Hydrophilic fuel cell bipolar plate having a plasma induced polymerization coating 有权
    具有等离子体诱导聚合涂层的亲水燃料电池双极板

    公开(公告)号：US07622211B2

    公开(公告)日：2009-11-24

    申请号：US11141905

    申请日：2005-06-01

    申请人： Gayatri Vyas ,  Tao Xie ,  Thomas A. Trabold

    发明人： Gayatri Vyas ,  Tao Xie ,  Thomas A. Trabold

    IPC分类号： H01M2/02 ,  B05D5/12

    CPC分类号： H01M8/0228 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0226 ,  H01M8/04171 ,  H01M2008/1095 ,  Y02P70/56

    摘要： A fuel cell electrically conductive element is provided with a polymeric surface comprising a flow field, at least a part of the flow field having a grafted, permanently hydrophilic, polymer coating. The element is made by applying a layer of a monomer mixture of a hydrophilic, ethylenically-unsaturated monomer and a crosslinking monomer to the electrically conductive element surface and polymerizing the applied monomer mixture layer with a plasma whereby the polymerized layer is grafted to the polymeric surface.

    摘要翻译： 燃料电池导电元件设置有包括流场的聚合物表面，所述流场的至少一部分具有接枝的永久亲水的聚合物涂层。 该元件通过将一层亲水性，烯属不饱和单体和交联单体的单体混合物施加到导电元件表面上并用等离子体聚合所施加的单体混合物层，从而将聚合层接枝到聚合物表面 。

    Water Removal Features for PEMFC Stack Manifolds
    68.
    发明申请
    Water Removal Features for PEMFC Stack Manifolds 有权
    PEMFC堆叠歧管的除水特性

    公开(公告)号：US20090117432A1

    公开(公告)日：2009-05-07

    申请号：US11936633

    申请日：2007-11-07

    申请人： Lee C. Whitehead ,  Steven R. Falta ,  Thomas A. Trabold ,  Jon P. Owejan ,  Thomas W. Tighe

    发明人： Lee C. Whitehead ,  Steven R. Falta ,  Thomas A. Trabold ,  Jon P. Owejan ,  Thomas W. Tighe

    IPC分类号： H01M8/04 ,  H01M8/10

    CPC分类号： H01M8/04179 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/0263 ,  H01M8/241

    摘要： A bipolar plate includes angled facets oriented to form V-shaped projections on the plate edge. Liquid leaving the reactant channels is drawn back into the V-shaped grooves of the projections, leaving no liquid to obstruct the channel exit openings. The bipolar plate includes one portion of the bipolar plate offset from another portion of the bipolar plate so as to expose the reactant channels. The liquid is drawn toward the end portions of the reactant channels by capillary forces, while the gas flows can exit near the beginning of the offset portion. A fuel cell stack includes angled facets that are rotated to lie in the plane of the bipolar plate edges. The edges are chamfered so the channel exit openings of the reactant channels are at the tip portions thereof, thus allowing the liquid to flow away from the channel exit openings and the gas to exit freely.

    摘要翻译： 双极板包括定向成在板边缘上形成V形突起的倾斜小平面。 离开反应物通道的液体被拉回到突起的V形槽中，没有液体阻碍通道出口。 双极板包括从双极板的另一部分偏移的双极板的一部分，以暴露反应物通道。 液体通过毛细管力被吸引到反应物通道的端部，而气体流可以在偏移部分的开始附近离开。 燃料电池堆包括旋转以位于双极板边缘的平面中的倾斜小平面。 边缘被倒角，使得反应物通道的通道出口开口处于其顶端部分，从而允许液体从通道出口开口和气体离开自由地流出。

    METHOD FOR OPTIMIZING DIFFUSION MEDIA WITH SPATIALLY VARYING MASS TRANSPORT RESISTANCE
    69.
    发明申请
    METHOD FOR OPTIMIZING DIFFUSION MEDIA WITH SPATIALLY VARYING MASS TRANSPORT RESISTANCE 有权
    用于优化具有空间变化的大容量运输电阻的扩散介质的方法

    公开(公告)号：US20090024373A1

    公开(公告)日：2009-01-22

    申请号：US11778741

    申请日：2007-07-17

    申请人： Torsten Berning ,  Christian Wieser ,  Po-Ya Abel Chuang ,  Thomas A. Trabold

    发明人： Torsten Berning ,  Christian Wieser ,  Po-Ya Abel Chuang ,  Thomas A. Trabold

    IPC分类号： G06G7/48

    CPC分类号： H01M8/0245 ,  H01M8/04305 ,  H01M2250/20 ,  Y02T90/32

    摘要： A method for optimizing a fuel cell diffusion media having a spatially varying mass transport resistance is provided. The method includes at least two passes where a first-pass D/Deff profile for the fuel cell diffusion media is provided and applied to a computational model of the fuel cell having a baseline variable profile. At least one first-pass variable profile resulting from the application of the first-pass D/Deff profile to the computational mode is calculated and compared to a desired variable range. The first-pass D/Deff profile is refined, if necessary, to provide a second-pass D/Deff profile. A relative performance of the fuel cell with a second-pass variable profile resulting from an application of the second-pass D/Deff profile is determined. The second-pass D/Deff profile is refined, if necessary, until the second-pass variable profile has a desirable performance. An effective D/Deff profile is thereby provided.

    摘要翻译： 提供了一种用于优化具有空间变化的质量传输电阻的燃料电池扩散介质的方法。 该方法包括至少两次通过，其中提供用于燃料电池扩散介质的第一通道D / Deff曲线并将其应用于具有基线可变轮廓的燃料电池的计算模型。 计算从应用第一遍D / Deff轮廓到计算模式的至少一个第一遍可变轮廓，并将其与期望的可变范围进行比较。 如果需要，首选D / Deff配置文件将被改进，以提供二次D / Deff配置文件。 确定由施加二次D / Deff轮廓导致的具有二次可变轮廓的燃料电池的相对性能。 如果需要，二次D / Deff轮廓被精炼，直到第二道次可变轮廓具有期望的性能。 由此提供有效的D / Deff曲线。