FUEL CELL SYSTEM AND INITIAL DRIVING METHOD THEREOF
    4.
    发明申请
    FUEL CELL SYSTEM AND INITIAL DRIVING METHOD THEREOF 审中-公开
    燃料电池系统及其初始驱动方法

    公开(公告)号:US20090104490A1

    公开(公告)日:2009-04-23

    申请号:US12176153

    申请日:2008-07-18

    IPC分类号: H01M8/04 H01M8/00

    摘要: A fuel cell system is provided including a fuel cell stack and a starting controller. The fuel cell stack has output terminals for applying an output voltage. The starting controller is configured to control the output voltage applied across the output terminals of the fuel cell stack during a starting period to be a starting voltage lower than a rated voltage.

    摘要翻译: 提供了包括燃料电池堆和启动控制器的燃料电池系统。 燃料电池堆具有用于施加输出电压的输出端子。 启动控制器被配置为控制在启动期间施加在燃料电池堆的输出端子上的输出电压为低于额定电压的启动电压。

    MEMBRANE ELECTRODE ASSEMBLY WITH MULTILAYERED CATHODE ELECTRODE FOR USING IN FUEL CELL SYSTEM
    5.
    发明申请
    MEMBRANE ELECTRODE ASSEMBLY WITH MULTILAYERED CATHODE ELECTRODE FOR USING IN FUEL CELL SYSTEM 审中-公开
    用于在燃料电池系统中使用的多层阴极电极的膜电极组件

    公开(公告)号:US20080311463A1

    公开(公告)日:2008-12-18

    申请号:US12130420

    申请日:2008-05-30

    IPC分类号: H01M4/96

    摘要: A membrane electrode assembly in a fuel cell system includes a cathode electrode that includes a support layer; a catalyst layer; and a first carbon layer and second carbon layer between the support layer and the catalyst layer, the first carbon layer having a relatively higher porosity and the second carbon layer having a relatively lower porosity. Therefore, the membrane electrode assembly maintains good ion conductivity in the polymer electrolyte membrane by suppressing the movement of water molecules from the polymer electrolyte membrane to the cathode electrode using a water pressure between two carbon layers having different porosity. Also, a flooding phenomenon in the cathode electrode is prevented, thereby maintaining the smooth movement of the oxidizing agent in the cathode.

    摘要翻译: 燃料电池系统中的膜电极组件包括:包括支撑层的阴极; 催化剂层; 以及在所述支撑层和所述催化剂层之间的第一碳层和第二碳层,所述第一碳层具有相对较高的孔隙率,并且所述第二碳层具有相对较低的孔隙率。 因此,通过使用具有不同孔隙率的两个碳层之间的水压抑制水分子从聚合物电解质膜向阴极的移动,膜电极组件在聚合物电解质膜中保持良好的离子传导性。 此外,防止阴极中的淹水现象,从而保持氧化剂在阴极中的平稳移动。

    Positive active material composition and positive electrode for electrochemical device, and electrochemical device including the same
    7.
    发明授权
    Positive active material composition and positive electrode for electrochemical device, and electrochemical device including the same 有权
    正极活性物质组成和正极用于电化学装置,其电化学装置包括它们

    公开(公告)号:US08647768B2

    公开(公告)日:2014-02-11

    申请号:US13047739

    申请日:2011-03-14

    IPC分类号: H01M4/60

    摘要: Disclosed are a positive active material composition for an electrochemical device, a positive electrode, and an electrochemical device including the same. The positive active material composition includes: a carbon-based additive including a hydroxyl group (—OH) and an enol group (—C═C—OH) on the surface, having a peak area ratio (OH/C═COH) of a hydroxyl group peak area and an enol group peak area of an infrared spectroscopy (FT-IR) spectrum ranging from about 0.5 to about 10, having a specific surface area of about 50 m2/g to about 3000 m2/g, and having an oxygen-containing heterogeneous element in a content of less than about 15 wt %; a positive active material; a conductive material; and a binder.

    摘要翻译: 公开了一种用于电化学装置,正电极和包括其的电化学装置的正极活性材料组合物。 正极活性物质组合物包括:表面具有羟基(-OH)和烯醇基(-C = C-OH)的碳基添加剂,其表面积的峰面积比(OH / C = COH) 羟基峰面积和范围为约0.5至约10的红外光谱(FT-IR)光谱的烯醇基峰面积,比表面积为约50m 2 / g至约3000m 2 / g,并具有氧 含量小于约15重量%的异质元素; 正极活性物质; 导电材料; 和粘合剂。

    SMALL PORTABLE FUEL CELL AND MEMBRANE ELECTRODE ASSEMBLY USED THEREIN
    10.
    发明申请
    SMALL PORTABLE FUEL CELL AND MEMBRANE ELECTRODE ASSEMBLY USED THEREIN 审中-公开
    小型便携式燃料电池和膜电极组件

    公开(公告)号:US20080199758A1

    公开(公告)日:2008-08-21

    申请号:US11956180

    申请日:2007-12-13

    IPC分类号: H01M4/92

    摘要: A fuel cell includes: a fuel cell body; and a fuel supplier supplying fuel to the fuel cell body, wherein the fuel cell body includes: a membrane electrode assembly including an ion exchange membrane, an anode catalyst layer positioned at one surface of the ion exchange membrane, an anode gas diffusion layer positioned at one surface of the anode catalyst layer, and a cathode catalyst layer positioned at other surface of the ion exchange membrane; and a fuel flow field positioned at the one surface of the anode gas diffusion layer and supplying the fuel to the anode catalyst layer through the anode diffusion layer.

    摘要翻译: 燃料电池包括:燃料电池体; 向该燃料电池主体供给燃料的燃料供给体,其特征在于,所述燃料电池体具备:离子交换膜,位于所述离子交换膜的一个表面的阳极催化剂层的阳极气体扩散层, 阳极催化剂层的一个表面和位于离子交换膜的另一个表面的阴极催化剂层; 以及燃料流场,其位于阳极气体扩散层的一个表面,并通过阳极扩散层将燃料供给阳极催化剂层。