SELECTIVE COATING OF FUEL CELL ELECTROCATALYST
    1.
    发明申请
    SELECTIVE COATING OF FUEL CELL ELECTROCATALYST 审中-公开
    燃料电池的选择性涂层

    公开(公告)号:US20090087549A1

    公开(公告)日:2009-04-02

    申请号:US11862425

    申请日:2007-09-27

    IPC分类号: B05D1/18 B05D3/00

    摘要: A method is provided for selectively coating a catalyst layer (158) on an electrode of a fuel cell. A porous conductive material (154) comprising gold is formed overlying a portion of a dielectric material (114) to form the electrode. The porous conductive material (154) and the dielectric material (114) are coated with the catalyst layer (158) comprising a carbon supported platinum. The catalyst layer (158) is washed with a solvent to substantially remove the catalyst layer (158) from the dielectric material (114). Optionally, an ionomer component is diffused into the catalyst layer (158) remaining on the porous conductive material (154). The catalyst coated (158) circular channels (156) are then filled with an electrolyte layer (162).

    摘要翻译: 提供了一种用于在燃料电池的电极上选择性地涂覆催化剂层(158)的方法。 包含金的多孔导电材料(154)形成在电介质材料(114)的一部分上方以形成电极。 多孔导电材料(154)和介电材料(114)涂覆有包含碳负载的铂的催化剂层(158)。 催化剂层(158)用溶剂洗涤以从电介质材料(114)基本上除去催化剂层(158)。 任选地,离聚物组分扩散到保留在多孔导电材料(154)上的催化剂层(158)中。 催化剂涂覆的(158)圆形通道(156)然后用电解质层(162)填充。

    MICRO FUEL CELL HAVING MACROPOROUS METAL CURRENT COLLECTORS
    3.
    发明申请
    MICRO FUEL CELL HAVING MACROPOROUS METAL CURRENT COLLECTORS 审中-公开
    具有大量金属电流收集器的微型燃料电池

    公开(公告)号:US20080182012A1

    公开(公告)日:2008-07-31

    申请号:US11669720

    申请日:2007-01-31

    IPC分类号: B05D5/12

    摘要: A method is provided for fabricating a hybrid gas diffusion layer/current collector/electrocatalyst structure (28) suitable for 3D microfuel cell devices (180). The method comprises forming a macroporous electrically conductive structure (28) on a substrate (12, 112) positioned such that a plurality of cathode current collector/GDL (168) and anode current collector/GDL (166) are formed. An electrocatalyst material (158) is deposited in contact with these structures, completing the formation of cathode (168) and anode (166) hybrid current collector/GDL/electrocatalyst structures. When electrolyte (158) is positioned between the electrocatalyst material (158) contacting the cathode collector (168) and the electrocatalyst material (158) contacting each of the plurality of anode collectors (166), the resulting MEA is suitable for use in a micro fuel cell device.

    摘要翻译: 提供了一种用于制造适用于3D微型电池单元装置(180)的混合气体扩散层/集电器/电催化剂结构(28)的方法。 该方法包括在定位成使得形成多个阴极集电器/ GDL(168)和阳极集电器/ GDL(166))的基板(12,112)上形成大孔导电结构(28)。 沉积与这些结构接触的电极催化剂材料(158),完成阴极(168)和阳极(166)混合集电器/ GDL /电催化剂结构的形成。 当电解质(158)位于与阴极收集器(168)接触的电极催化剂材料(158)和与多个阳极集电器(166)中的每一个接触的电极催化剂材料(158))之间时,所得到的MEA适用于微观 燃料电池装置。