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公开(公告)号：US09136545B2
公开(公告)日：2015-09-15
申请号：US12038007
申请日：2008-02-27
CPC分类号： H01M8/0232 , H01M8/0206 , H01M8/0228 , Y02E60/50 , Y02P70/56
摘要： Fuel cell bipolar plates are made by depositing a pinhole free corrosion resistant and/or a conductive layer on a metal plate using an atomic layer deposition method. In one embodiment, a conductive layer is deposited on an anodized metal plate using atomic layer deposition method. In another embodiment, at least one corrosion resistant metal oxide layer and at least one conductive layer are deposited on a metal plate individually using atomic layer deposition method. In yet another embodiment, a corrosion resistant and conductive metal oxynitride layer is deposited on a metal plate using an atomic layer deposition method.
摘要翻译： 燃料电池双极板通过使用原子层沉积方法在金属板上沉积无孔耐腐蚀和/或导电层而制成。 在一个实施例中，使用原子层沉积方法将导电层沉积在阳极化金属板上。 在另一个实施例中，使用原子层沉积法分别在金属板上沉积至少一个耐腐蚀金属氧化物层和至少一个导电层。 在另一个实施例中，使用原子层沉积方法在金属板上沉积耐腐蚀和导电的金属氧氮化物层。
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62.发明授权Development of high energy surfaces on stainless steels for improved wettability 有权在不锈钢上开发高能表面以改善润湿性公开(公告)号：US08097377B2
公开(公告)日：2012-01-17
申请号：US11341354
申请日：2006-01-27
CPC分类号： H01M8/0208 , C22C14/00 , C22C19/03 , C22C38/02 , C22C38/04 , H01M8/0206 , H01M8/021 , H01M8/0226 , H01M2008/1095 , H01M2250/20 , Y02T90/32 , Y10T428/12389 , Y10T428/12674 , Y10T428/12681 , Y10T428/12924 , Y10T428/12993
摘要： A bi-polar plate is provided for a fuel cell stack. The bi-polar plate has improved surface wettability. The bi-polar plate includes a body including at least approximately ninety percent by weight of a metal and defining at least one flow channel. At least about 0.05 percent and up to 100 percent by weight of silicon is disposed on a surface of the at least one flow channel to form a high energy surface to form a high energy surface for the bi-polar plate. This can be achieved by adding from 0.5 to 10 weight % silicon to the steel. The percent of silicon is pre-determined based on a desired wettability of the high energy surface of the at least one flow channel.
摘要翻译： 为燃料电池堆提供双极板。 双极板具有改善的表面润湿性。 双极板包括一个主体，其包括至少大约百分之九十重量百分比的金属并限定至少一个流动通道。 在至少一个流动通道的表面上设置至少约0.05％和高达100重量％的硅，以形成高能量表面以形成双极板的高能量表面。 这可以通过向钢中加入0.5至10重量％的硅来实现。 基于所述至少一个流动通道的高能表面的期望的润湿性来预先确定硅的百分比。
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公开(公告)号：US20090011310A1
公开(公告)日：2009-01-08
申请号：US11772406
申请日：2007-07-02
申请人： Thomas A. Trabold , Gayatri Vyas Dadheech , Mahmoud H. Abd Elhamid , Yan Zhang , Keith E. Newman , Jeffrey A. Rock , Steven J. Spencer
发明人： Thomas A. Trabold , Gayatri Vyas Dadheech , Mahmoud H. Abd Elhamid , Yan Zhang , Keith E. Newman , Jeffrey A. Rock , Steven J. Spencer
CPC分类号： H01M8/026 , H01M8/0245 , H01M8/04171 , H01M8/04291 , H01M2008/1095 , Y10T29/49108
摘要： One embodiment of the invention comprises a fuel cell bipolar plate comprising a substrate comprising a first face, a reactant gas flow field defined in the first face, the reactant gas flow field comprising a plurality of lands and channels, and a plurality of microgrooves formed in the first face.
摘要翻译： 本发明的一个实施例包括燃料电池双极板，其包括基板，该基板包括第一面，在第一面中限定的反应气体流场，反应物气流场包括多个平台和通道，以及多个微槽， 第一张脸。
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公开(公告)号：US08277986B2
公开(公告)日：2012-10-02
申请号：US11772406
申请日：2007-07-02
申请人： Thomas A. Trabold , Gayatri Vyas Dadheech , Mahmoud H. Abd Elhamid , Yan Zhang , Keith E. Newman , Jeffrey A. Rock , Steven J. Spencer
发明人： Thomas A. Trabold , Gayatri Vyas Dadheech , Mahmoud H. Abd Elhamid , Yan Zhang , Keith E. Newman , Jeffrey A. Rock , Steven J. Spencer
IPC分类号： H01M8/02
CPC分类号： H01M8/026 , H01M8/0245 , H01M8/04171 , H01M8/04291 , H01M2008/1095 , Y10T29/49108
摘要： One embodiment of the invention comprises a fuel cell bipolar plate comprising a substrate comprising a first face, a reactant gas flow field defined in the first face, the reactant gas flow field comprising a plurality of lands and channels, and a plurality of microgrooves formed in the first face.
摘要翻译： 本发明的一个实施例包括燃料电池双极板，其包括基板，该基板包括第一面，在第一面中限定的反应气体流场，反应物气流场包括多个平台和通道，以及多个微槽， 第一张脸。
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65.发明授权公开(公告)号：US08906579B2
公开(公告)日：2014-12-09
申请号：US12465963
申请日：2009-05-14
CPC分类号： H01M8/0208 , H01M8/021 , H01M8/0228 , H01M8/0258 , H01M8/0263 , H01M8/0267 , H01M8/2483 , H01M2008/1095 , Y02E60/50
摘要： A bipolar plate to reduce electrical contact resistance between the plate and a diffusion layer used in a fuel cell. The opposing surfaces of the plate define flow channels with upstanding lands interspersed between them. The lands of the plate form an electrically-conductive contact with a diffusion layer in the fuel cell. At least a portion of the electrically-conductive contact is made up of a nickel-based alloy that reduces the contact resistance between the plate and the diffusion layer as a way to achieve improved electric current density. In one form, the alloy can be used as the primary material in the plate, while in another, it can be used as a coating deposited onto a conventional stainless steel plate.
摘要翻译： 一种用于减小板与燃料电池中使用的扩散层之间的电接触电阻的双极板。 板的相对表面限定了流通通道，其间具有分散在它们之间的直立区域。 板的焊盘与燃料电池中的扩散层形成导电接触。 导电接触的至少一部分由镍基合金构成，其可以降低板和扩散层之间的接触电阻，作为实现改善的电流密度的方式。 在一种形式中，合金可以用作板中的主要材料，而在另一种形式中，它可以用作沉积在常规不锈钢板上的涂层。
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66.发明申请公开(公告)号：US20130330654A1
公开(公告)日：2013-12-12
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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67.发明申请Selectively Coated Bipolar Plates for Water Management and Freeze Start in PEM Fuel Cells 有权选择性涂层双极板用于PEM燃料电池中的水管理和冷冻启动公开(公告)号：US20110229792A1
公开(公告)日：2011-09-22
申请号：US12727600
申请日：2010-03-19
CPC分类号： H01M8/0245 , H01M8/0206 , H01M8/0213 , H01M8/0221 , H01M8/0226 , H01M8/0228 , H01M8/0234 , H01M8/0239 , H01M8/0243 , H01M2008/1095 , Y02E60/50
摘要： A flow field plate for fuel cell applications includes an electrically conductive plate having a first surface defining a plurality of channels. An active area section and an inactive area section characterize the flow field channels. A hydrophobic layer is disposed over at least a portion of the inactive area section while a hydrophilic layer is disposed over at least a portion of the active area section.
摘要翻译： 用于燃料电池应用的流场板包括具有限定多个通道的第一表面的导电板。 活动区域区域和非活动区域区域表征流场通道。 疏水层设置在非活性区域区域的至少一部分上，同时亲水层设置在有源区域区段的至少一部分上方。
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公开(公告)号：US20100323276A1
公开(公告)日：2010-12-23
申请号：US12861261
申请日：2010-08-23
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20mΩ·cm 2·cm 2，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：US07842435B2
公开(公告)日：2010-11-30
申请号：US10978979
申请日：2004-11-01
IPC分类号： H01M8/04
CPC分类号： H01M8/0228 , H01M8/0206 , H01M8/04119 , Y02P70/56
摘要： A method of enhancing water management capabilities of a fuel cell is disclosed. The method includes providing a fuel cell component having hydrophilic or weakly hydrophobic surfaces, increasing a hydrophobicity of at least one of said hydrophilic surfaces and assembling the fuel cell component into the fuel cell.
摘要翻译： 公开了一种提高燃料电池的水管理能力的方法。 该方法包括提供具有亲水或弱疏水表面的燃料电池组件，增加至少一个所述亲水表面的疏水性，并将燃料电池组件组装到燃料电池中。
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70.发明申请公开(公告)号：US20100291464A1
公开(公告)日：2010-11-18
申请号：US12465963
申请日：2009-05-14
IPC分类号： H01M2/02
CPC分类号： H01M8/0208 , H01M8/021 , H01M8/0228 , H01M8/0258 , H01M8/0263 , H01M8/0267 , H01M8/2483 , H01M2008/1095 , Y02E60/50
摘要： A bipolar plate to reduce electrical contact resistance between the plate and a diffusion layer used in a fuel cell. The opposing surfaces of the plate define flow channels with upstanding lands interspersed between them. The lands of the plate form an electrically-conductive contact with a diffusion layer in the fuel cell. At least a portion of the electrically-conductive contact is made up of a nickel-based alloy that reduces the contact resistance between the plate and the diffusion layer as a way to achieve improved electric current density. In one form, the alloy can be used as the primary material in the plate, while in another, it can be used as a coating deposited onto a conventional stainless steel plate.
摘要翻译： 一种用于减小板与燃料电池中使用的扩散层之间的电接触电阻的双极板。 板的相对表面限定了流通通道，其间具有分散在它们之间的直立区域。 板的焊盘与燃料电池中的扩散层形成导电接触。 导电接触的至少一部分由镍基合金构成，其可以降低板和扩散层之间的接触电阻，作为实现改善的电流密度的方式。 在一种形式中，合金可以用作板中的主要材料，而在另一种形式中，它可以用作沉积在常规不锈钢板上的涂层。
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