Water management of PEM fuel cell stacks using surface active agents
    51.
    发明授权
    Water management of PEM fuel cell stacks using surface active agents 有权
    使用表面活性剂对PEM燃料电池堆进行水管理

    公开(公告)号:US08431275B2

    公开(公告)日:2013-04-30

    申请号:US11286603

    申请日:2005-11-23

    IPC分类号: H01M8/04

    摘要: A fuel cell system that employs a surface active agent that reduces the surface tension of the water in the flow field channels. The fuel cell system includes humidifiers that humidify the cathode inlet airflow and the hydrogen anode gas. The surface active agent is mixed with the humidifying water in the humidifiers so that the surface active agent enters the flow field channels to reduce the surface tension of the water therein, thus allowing the water to wick the channels. In one non-limiting embodiment, the surface active agent is ethanol. Ruthenium can be added to the platinum in the catalyst layers of the fuel cells to mitigate the poisoning of platinum by carbon monoxide, which is one of the oxidation products of ethanol on the cathode side of the fuel cell.

    摘要翻译: 一种燃料电池系统,其采用降低流场通道中的水的表面张力的表面活性剂。 燃料电池系统包括加湿阴极入口气流和氢气阳极气体的加湿器。 将表面活性剂与加湿器中的加湿水混合,使得表面活性剂进入流场通道以降低其中的水的表面张力,从而允许水吸收通道。 在一个非限制性实施方案中,表面活性剂是乙醇。 可以将钌添加到燃料电池的催化剂层中的铂中,以减轻燃料电池阴极侧的乙醇的氧化产物之一的一氧化碳对铂的中毒。

    FUEL CELLS COMPRISING MOLDABLE GASKETS, AND METHODS OF MAKING
    53.
    发明申请
    FUEL CELLS COMPRISING MOLDABLE GASKETS, AND METHODS OF MAKING 审中-公开
    包含可模制气垫的燃料电池及其制造方法

    公开(公告)号:US20110254198A1

    公开(公告)日:2011-10-20

    申请号:US13166939

    申请日:2011-06-23

    IPC分类号: H01M8/00 H01M8/24 B29C45/14

    摘要: 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).

    摘要翻译: 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。

    METHOD OF COATING FUEL CELL COMPONENTS FOR WATER REMOVAL
    58.
    发明申请
    METHOD OF COATING FUEL CELL COMPONENTS FOR WATER REMOVAL 有权
    涂层燃料电池组件进行水分去除的方法

    公开(公告)号:US20090238989A1

    公开(公告)日:2009-09-24

    申请号:US12053897

    申请日:2008-03-24

    IPC分类号: B05D3/00 B05D1/00

    摘要: A method for coating a fuel cell component is provided. The method includes the steps of providing a fuel cell component, and forming a coating on a surface of the fuel cell component with a plasma jet. The step of forming the coating may include applying a coating precursor to a surface of the fuel cell component and then reacting the coating precursor with the plasma jet to form the coating. The step of forming the coating may also include growing the coating on the surface of the fuel cell component by delivering the plasma jet containing the coating precursor.

    摘要翻译: 提供一种涂覆燃料电池部件的方法。 该方法包括以下步骤:提供燃料电池部件,以及用等离子体射流在燃料电池部件的表面上形成涂层。 形成涂层的步骤可以包括将涂料前体施加到燃料电池组件的表面,然后使涂层前体与等离子体射流反应以形成涂层。 形成涂层的步骤还可以包括通过输送含有涂层前体的等离子体射流来生长燃料电池部件表面上的涂层。

    INEXPENSIVE APPROACH FOR COATING BIPOLAR PLATES FOR PEM FUEL CELLS
    60.
    发明申请
    INEXPENSIVE APPROACH FOR COATING BIPOLAR PLATES FOR PEM FUEL CELLS 有权
    用于涂覆PEM燃料电池的双极板的独立方法

    公开(公告)号:US20080138687A1

    公开(公告)日:2008-06-12

    申请号:US11562597

    申请日:2006-11-22

    摘要: A metallic bipolar plate for use in a fuel cell includes a metallic bipolar plate having one or more channels and a contact surface. The contact surface has a surface roughness defined by a plurality of peaks and valleys wherein at least a portion of the valleys are filled with an electrically conductive material. The contact surface is adapted to contact the anode diffusion layer or the cathode diffusion layer such that the contact resistance occurring at this surface is lower than when the electrically conductive material is not present. A fuel cell incorporating the metallic bipolar plate is also provided.

    摘要翻译: 用于燃料电池的金属双极板包括具有一个或多个通道和接触表面的金属双极板。 接触表面具有由多个峰和谷限定的表面粗糙度,其中至少一部分谷被填充有导电材料。 接触表面适于接触阳极扩散层或阴极扩散层,使得在该表面发生的接触电阻低于不存在导电材料时的接触电阻。 还提供并入金属双极板的燃料电池。