Metal oxide based hydrophilic coatings for PEM fuel cell bipolar plates
    3.
    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

    IPC分类号: H01M8/02 B05D5/12

    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。

    Fuel cell dielectric coolant and evaporative cooling process using same
    5.
    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

    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。

    Method for manufacturing a separator plate for PEM fuel cells
    6.
    发明申请
    Method for manufacturing a separator plate for PEM fuel cells 审中-公开
    制造PEM燃料电池用隔板的方法

    公开(公告)号:US20070164483A1

    公开(公告)日:2007-07-19

    申请号:US11640163

    申请日:2006-12-15

    IPC分类号: C08J5/00

    摘要: A method for manufacturing a composite separator plate for a fuel cell stack. The method includes preparing expanded graphite into particles, and dispersing the expanded graphite particles into a polymeric resin. The resin, including the graphite particles, is compression molded to form the separator plate. In one embodiment, the expanded graphite is dispersed into the polymeric resin by mixing it in to the resin. In an alternate embodiment, the expanded graphite is sprinkled into the polymeric resin using an SMC-like process.

    摘要翻译: 一种燃料电池堆的复合隔板的制造方法。 该方法包括将膨胀石墨制成颗粒,并将膨胀石墨颗粒分散在聚合物树脂中。 包括石墨颗粒在内的树脂被压塑以形成隔板。 在一个实施方案中,膨胀石墨通过将其与树脂混合而分散到聚合物树脂中。 在替代实施例中,使用类似SMC的工艺将膨胀的石墨喷洒到聚合物树脂中。