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71. 发明授权

US07759017B2 Membrane electrode assembly (MEA) architecture for improved durability for a PEM fuel cell 有权
标题翻译：膜电极组件（MEA）结构，用于改善PEM燃料电池的耐久性
公开(公告)号：US07759017B2
公开(公告)日：2010-07-20
申请号：US11131529
申请日：2005-05-18
申请人： Youssef M. Mikhail , Gayatri Vyas
发明人： Youssef M. Mikhail , Gayatri Vyas
IPC分类号： H01M2/14 , H01M8/04 , H01M8/10
CPC分类号： H01M8/1004 , H01M4/8605 , H01M4/8657 , Y10T428/249986 , Y10T428/24999
摘要： An electrically conductive fluid distribution element for use in a fuel cell having a layer of a conductive non-metallic fiberless microporous media. In certain embodiments, an electrically conductive metal is deposited along a surface of the element to form one or more metallized regions. The metallized regions are arranged to contact a membrane electrode assembly (MEA) in a fuel cell assembly, and thus improve electrical conductance at contact regions between the MEA and the layer of media. Methods of making such a fluid distribution element and operating fuel cell assemblies are also provided.
摘要翻译：一种用于具有导电非金属无纤维微孔介质层的燃料电池的导电流体分配元件。在某些实施例中，沿着元件的表面沉积导电金属以形成一个或多个金属化区域。金属化区域被布置成接触燃料电池组件中的膜电极组件（MEA），从而改善MEA和介质层之间的接触区域处的导电性。还提供了制造这种流体分配元件和操作燃料电池组件的方法。

72. 发明申请

US20080044715A1 Hydrophilic layer on flowfield for water management in PEM fuel cell 有权
标题翻译： PEM燃料电池水管理的流场亲水层
公开(公告)号：US20080044715A1
公开(公告)日：2008-02-21
申请号：US11227312
申请日：2005-09-15
申请人： Gayatri Vyas , Youssef M. Mikhail , Thomas A. Trabold
发明人： Gayatri Vyas , Youssef M. Mikhail , Thomas A. Trabold
IPC分类号： H01M8/02 , B05D5/12 , B05D3/02
CPC分类号： H01M8/0228 , H01M8/0239 , H01M8/0258 , H01M8/0267 , H01M8/0271 , H01M8/04291 , H01M8/241 , H01M8/242 , H01M8/2483 , H01M2008/1095 , Y02P70/56
摘要： A fluid distribution element is provided for a fuel cell having a major surface facing a membrane electrode assembly (MEA) and one or more flow channels for transporting gas and liquid to and from the MEA. One or more regions of the major surface are overlaid with a super-hydrophilic corrosion-resistant layer comprising a fluoropolymer. Methods of making such a fluid distribution element are also provided.
摘要翻译：为具有面向膜电极组件（MEA）的主表面和用于将气体和液体输送到MEA的一个或多个流动通道的燃料电池提供流体分配元件。主表面的一个或多个区域覆盖有包含含氟聚合物的超亲水耐腐蚀层。还提供了制造这种流体分配元件的方法。

73. 发明授权

US4758479A Corrosion resistant nickel-zinc-phosphorus coating and method of electroplating said coating 失效
标题翻译：耐腐蚀镍锌磷涂层和电镀所述涂层的方法
公开(公告)号：US4758479A
公开(公告)日：1988-07-19
申请号：US31765
申请日：1987-03-30
申请人： Sundararajan Swathirajan , Youssef M. Mikhail
发明人： Sundararajan Swathirajan , Youssef M. Mikhail
IPC分类号： C25D3/56
CPC分类号： C25D3/562 , Y10T428/12792 , Y10T428/12799 , Y10T428/12937 , Y10T428/12944
摘要： Corrosion resistant electrodeposit comprising a solid solution of phosphorus and nickel supersaturated with zinc. The electrodeposit is formed from an electrolyte containing nickel chloride, zinc chloride and sodium hypophosphite having a nickel ion to zinc ion molar ratio between about 7 and about 12 and deposited at current densities greater than about 0.6 A/cm.sup.2.

74. 发明授权

US06521381B1 Electrode and membrane-electrode assemblies for electrochemical cells 有权
标题翻译：用于电化学电池的电极和膜 - 电极组件
公开(公告)号：US06521381B1
公开(公告)日：2003-02-18
申请号：US09268827
申请日：1999-03-16
申请人： Gayatri Vyas , Swathy Swathirajan , Yang T. Cheng , Youssef M. Mikhail
发明人： Gayatri Vyas , Swathy Swathirajan , Yang T. Cheng , Youssef M. Mikhail
IPC分类号： H01M462
CPC分类号： H01M4/8885 , H01M8/1004 , Y02P70/56 , Y10T29/49115
摘要： An electrode structure for an electrochemical cell is formed by forming a mixture comprising proton-conductive material and carbon particles, applying the mixture to a current collector sheet to form a film, and dispersing a catalyst in the form of metallic polycrystals in a thin layer on the exposed surface of the film. This method produces an electrode having significantly increased catalyst utilization, dramatic reduction of catalyst loading, and which is consequently less expensive to produce than electrodes produced by prior art methods. A combination electrolyte and electrode structure for an electrochemical cell is produced by hot-pressing an electrode of the above-described composition into contact with a proton-conductive polymer electrolyte membrane.
摘要翻译：通过形成包含质子传导材料和碳颗粒的混合物形成用于电化学电池的电极结构，将该混合物施加到集电体片以形成膜，并将金属多晶体形式的催化剂分散在薄层上膜的暴露表面。该方法产生具有显着增加的催化剂利用率，催化剂负载显着降低的电极，因此与通过现有技术方法制备的电极相比，制造成本更低。通过将上述组合物的电极热压到与质子传导性聚合物电解质膜接触来制造用于电化学电池的组合电解质和电极结构。

75. 发明授权

US08211592B2 Hydrophilic layer on flowfield for water management in PEM fuel cell 有权
标题翻译： PEM燃料电池水管理的流场亲水层
公开(公告)号：US08211592B2
公开(公告)日：2012-07-03
申请号：US11227312
申请日：2005-09-15
申请人： Gayatri Vyas , Youssef M. Mikhail , Thomas A. Trabold
发明人： Gayatri Vyas , Youssef M. Mikhail , Thomas A. Trabold
IPC分类号： H01M8/10 , H01M8/04
CPC分类号： H01M8/0228 , H01M8/0239 , H01M8/0258 , H01M8/0267 , H01M8/0271 , H01M8/04291 , H01M8/241 , H01M8/242 , H01M8/2483 , H01M2008/1095 , Y02P70/56
摘要： A fluid distribution element is provided for a fuel cell having a major surface facing a membrane electrode assembly (MEA) and one or more flow channels for transporting gas and liquid to and from the MEA. One or more regions of the major surface are overlaid with a super-hydrophilic corrosion-resistant layer comprising a fluoropolymer. Methods of making such a fluid distribution element are also provided.
摘要翻译：为具有面向膜电极组件（MEA）的主表面和用于将气体和液体输送到MEA的一个或多个流动通道的燃料电池提供流体分配元件。主表面的一个或多个区域覆盖有包含含氟聚合物的超亲水耐腐蚀层。还提供了制造这种流体分配元件的方法。

76. 发明授权

US06277513B1 Layered electrode for electrochemical cells 有权
标题翻译：用于电化学电池的分层电极
公开(公告)号：US06277513B1
公开(公告)日：2001-08-21
申请号：US09290206
申请日：1999-04-12
申请人： Swathy Swathirajan , Youssef M. Mikhail
发明人： Swathy Swathirajan , Youssef M. Mikhail
IPC分类号： H01M402
CPC分类号： H01M4/926 , H01M4/8605 , H01M4/96 , H01M8/1004 , H01M2300/0082 , Y10T29/53204
摘要： There is provided an electrode structure comprising a current collector sheet and first and second layers of electrode material. Together, the layers improve catalyst utilization and water management.
摘要翻译：提供了包括集电体片和电极材料的第一和第二层的电极结构。这些层面一起提高了催化剂利用率和水资源管理。

77. 发明授权

US5316871A Method of making membrane-electrode assemblies for electrochemical cells and assemblies made thereby 失效
标题翻译：制造用于电化学电池和组件的膜 - 电极组件的方法
公开(公告)号：US5316871A
公开(公告)日：1994-05-31
申请号：US102189
申请日：1993-08-05
申请人： Sundararajan Swathirajan , Youssef M. Mikhail
发明人： Sundararajan Swathirajan , Youssef M. Mikhail
IPC分类号： C25B9/10 , H01M4/96 , H01M8/04 , H01M8/10 , H01M4/92
CPC分类号： C25B9/10 , H01M4/96 , H01M8/1004 , H01M8/04291 , Y02P70/56
摘要： A method of making a combination, unitary, membrane and electrode assembly having a solid polymer electrolyte membrane, and first and second electrodes at least partially embedded in opposed surfaces of the membrane. The electrodes each comprise a respective group of finely divided carbon particles, very finely divided catalytic particles supported on internal and external surfaces of the carbon particles and a proton conductive material intermingled with the catalytic and carbon particles. A first group of finely divided carbon particles forming the first electrode has greater water attraction and retention properties, and is more hydrophilic than a second group of carbon particles forming the second electrode. In a preferred method, the membrane electrode assembly of the invention is prepared by forming a slurry of proton conductive material and at least one group of the carbon and catalyst particles. The slurry is applied to the opposed surfaces of the membrane and heated while being pressed to the membrane for a time and at a temperature and compressive load sufficient to embed at least a portion of the particles into the membrane.
摘要翻译：一种制备具有固体聚合物电解质膜的组合，整体，膜和电极组件的方法，以及至少部分地嵌入膜的相对表面中的第一和第二电极。电极各自包括相应的细碎碳颗粒组，支撑在碳颗粒的内表面和外表面上的非常细的催化颗粒和与催化剂和碳颗粒混合的质子传导材料。形成第一电极的第一组精细分散的碳颗粒具有更大的吸水性和保留性，并且比形成第二电极的第二组碳颗粒更亲水。在优选的方法中，通过形成质子传导材料和至少一组碳和催化剂颗粒的浆料来制备本发明的膜电极组件。将浆料施加到膜的相对表面上并在被压到膜上一段时间并且在足以将至少一部分颗粒嵌入膜中的温度和压缩载荷下加热。

78. 发明授权

US5272017A Membrane-electrode assemblies for electrochemical cells 失效
标题翻译：用于电化学电池的膜 - 电极组件
公开(公告)号：US5272017A
公开(公告)日：1993-12-21
申请号：US862691
申请日：1992-04-03
申请人： Sundararajan Swathirajan , Youssef M. Mikhail
发明人： Sundararajan Swathirajan , Youssef M. Mikhail
IPC分类号： C25B9/10 , H01M4/96 , H01M8/04 , H01M8/10 , H01M4/92 , H01M6/18
CPC分类号： C25B9/10 , H01M4/96 , H01M8/1004 , H01M8/04291 , Y02P70/56
摘要： A combination, unitary, membrane and electrode assembly with a solid polymer electrolyte membrane, and first and second electrodes at least partially embedded in opposed surfaces of the membrane. The electrodes each comprise a respective group of finely divided carbon particles, very finely divided catalytic particles supported on internal and external surfaces of the carbon particles and a proton conductive material intermingled with the catalytic and carbon particles. A first group of finely divided carbon particles forming the first electrode has greater water attraction and retention properties, and is more hydrophilic than a second group of carbon particles forming the second electrode. In a preferred method, the membrane electrode assembly of the invention is prepared by forming a slurry of proton conductive material and at least one group of the carbon and catalyst particles. The slurry is applied to the opposed surfaces of the membrane and heated while being pressed to the membrane for a time and at a temperature and compressive load sufficient to embed at least a portion of the particles into the membrane.

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