Non-permeable low contact resistance shim for composite fuel cell stacks
    1.
    发明申请
    Non-permeable low contact resistance shim for composite fuel cell stacks 有权
    用于复合燃料电池堆的不可渗透的低接触电阻垫片

    公开(公告)号:US20070264556A1

    公开(公告)日:2007-11-15

    申请号:US11434386

    申请日:2006-05-15

    Abstract: A fuel cell stack that includes a non-permeable shim plate positioned between a composite unipolar plate and a terminal plate at both ends of the stack, where the shim plate is made of a non-corrosive material, such as stainless steel, titanium or sealed graphite. Because the shim plate is non-permeable, it prevents cooling fluid that diffuses through the unipolar plate from contacting the terminal plate, which would otherwise corrode the terminal plate. The shim plate can be coated with a conductive material, such as gold, platinum, ruthenium oxide or mixtures thereof, to reduce its contact resistance.

    Abstract translation: 一种燃料电池堆,其包括位于堆叠两端的复合单极板和端子板之间的不可渗透垫片,垫片由非腐蚀性材料制成,例如不锈钢,钛或密封 石墨。 因为垫板是不可渗透的,所以它防止通过单极板扩散的冷却液与接线板接触,否则会使端子板腐蚀。 垫板可以涂覆有导电材料,例如金,铂,氧化钌或其混合物,以降低其接触电阻。

    Stable conductive and hydrophilic fuel cell contact element
    4.
    发明申请
    Stable conductive and hydrophilic fuel cell contact element 审中-公开
    稳定的导电和亲水性燃料电池接触元件

    公开(公告)号:US20070003813A1

    公开(公告)日:2007-01-04

    申请号:US11172021

    申请日:2005-06-30

    Abstract: A flow field plate or bipolar plate for a fuel cell that includes a metal oxide coating that makes the bipolar plate conductive, hydrophilic and stable in the fuel cell environment. Non-limiting examples of suitable doped coatings Ta doped TiO2, Nb doped TiO2 and F doped SnO2. In an alternate embodiment, the metal oxide is a non-stoichiometric metal oxide that includes oxygen vacancies in the lattice structure that provides the conductivity. Non-limiting examples of suitable non-stoichiometric metal oxides include TiO2−x and TiO2+y.

    Abstract translation: 一种用于燃料电池的流场板或双极板,包括使得双极板在燃料电池环境中导电,亲水和稳定的金属氧化物涂层。 合适的掺杂涂层Ta掺杂的TiO 2,Nb掺杂的TiO 2和F掺杂的SnO 2的非限制性实例。 在替代实施例中,金属氧化物是非化学计量的金属氧化物,其包括晶格结构中提供导电性的氧空位。 合适的非化学计量的金属氧化物的非限制性实例包括TiO 2 - x和TiO 2 + y +。

    Fuel cell dielectric coolant and evaporative cooling process using same
    7.
    发明申请
    Fuel cell dielectric coolant and evaporative cooling process using same 有权
    燃料电池介质冷却液和蒸发冷却过程使用相同

    公开(公告)号:US20050130004A1

    公开(公告)日:2005-06-16

    申请号:US10737508

    申请日:2003-12-16

    Abstract: 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.

    Abstract translation: 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。

    Fuel cell separator plate coating
    8.
    发明申请
    Fuel cell separator plate coating 有权
    燃料电池分离板涂层

    公开(公告)号:US20060275643A1

    公开(公告)日:2006-12-07

    申请号:US11142583

    申请日:2005-06-01

    Abstract: 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.

    Abstract translation: 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。

    Metal oxide based hydrophilic coatings for PEM fuel cell bipolar plates
    9.
    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

    Abstract: 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.

    Abstract translation: 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。

    Fuel cells comprising moldable gaskets, and methods of making
    10.
    发明申请
    Fuel cells comprising moldable gaskets, and methods of making 审中-公开
    包括可模制垫片的燃料电池,以及制造方法

    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 classification number: H01M8/0273 H01M8/0284 Y02P70/56 Y10T29/4911

    Abstract: 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).

    Abstract translation: 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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