Electrode structure for polymer electrolyte fuel cells, and polymer electrolyte fuel cell using the same
    3.
    发明公开
    Electrode structure for polymer electrolyte fuel cells, and polymer electrolyte fuel cell using the same 有权
    ElektrodenanordnungfürPolymerelektrolytbrennstoffzelle,und diese verwendende Brennstoffzelle

    公开(公告)号:EP1420473A1

    公开(公告)日:2004-05-19

    申请号:EP03026194.5

    申请日:2003-11-17

    IPC分类号: H01M8/10

    摘要: The present invention provides an electrode structure for polymer electrolyte fuel cells, inexpensive, and exhibiting excellent power production capacity and durability even under high temperature/low humidity conditions, and also provides a polymer electrolyte fuel cell which incorporates the same electrode structure. The present invention also provides an electrical device and transportation device, each incorporating the same polymer electrolyte fuel cell. The electrode structure comprises a pair of electrode catalyst layers 1,1, each containing a catalyst supported by carbon particles, and polymer electrolyte membrane 2 placed between these electrode catalyst layers 1,1. The polymer electrolyte membrane 2 is of a sulfonated polyarylene composed of 0.5 to 100% by mol of the first repeating unit represented by the general formula (1) and 0 to 99.5% by mol of the second repeating unit represented by the general formula (2):
    (wherein, A is a divalent organic group; and a benzene ring includes its derivative),
    (wherein, -W- is a divalent electron attracting group; - T- is a divalent organic group; and R 1 to R 8 are a hydrogen atom or fluorine atom, an alkyl group, fluorine-substituted alkyl group, allyl group, aryl group or cyano group, and may be the same or different).

    摘要翻译: 本发明提供一种廉价的电池结构体,即使在高温/低湿条件下也具有优异的发电量和耐久性,并且还提供了结合了相同的电极结构的固体高分子型燃料电池。 本发明还提供了一种电气装置和运输装置,每个都装有相同的聚合物电解质燃料电池。 电极结构包括一对电极催化剂层1,1,每个电极催化剂层1,1包含由碳颗粒负载的催化剂和位于这些电极催化剂层1,1之间的聚合物电解质膜2。 聚合物电解质膜2是由通式(1)表示的第一重复单元为0.5〜100摩尔%,通式(2)表示的第二重复单元为0〜99.5摩尔%的磺化聚亚芳基 ):(其中,A为二价有机基团,苯环包括其衍生物),CHEM(其中,-W-为二价吸电子基团; -T为二价有机基团; R 1至R 8为氢原子或氟原子,烷基,氟取代的烷基,烯丙基,芳基或氰基,可以相同或不同)。

    Fuel cell system and scavenging method therefor
    6.
    发明公开
    Fuel cell system and scavenging method therefor 有权
    Brennstoffzellensystem unddazugehörigesSpülverfahren

    公开(公告)号:EP2056387A1

    公开(公告)日:2009-05-06

    申请号:EP08018649.7

    申请日:2008-10-24

    IPC分类号: H01M8/04

    摘要: A fuel cell (22) having an oxygen-containing gas flow field (34) and a fuel gas flow field (36), an oxygen-containing gas supply apparatus (14) for supplying an oxygen-containing gas to the oxygen-containing gas flow field (34), a fuel gas supply apparatus (16) for supplying a fuel gas to the fuel gas flow field (36), a scavenging gas supply apparatus (18) for supplying air as a scavenging gas to the fuel gas flow field (36), and a controller (20) are provided. The controller (20) includes a voltage detection unit (72) for detecting the voltage of the fuel cell (22) after operation of the fuel cell (22) is stopped and a scavenging control unit (74) for starting scavenging in the fuel gas flow field (36) by the scavenging gas supply apparatus (18) after the detected voltage is decreased temporarily, increased, and decreased again to become a preset voltage or less.

    摘要翻译: 具有含氧气体流场(34)和燃料气体流场(36)的燃料电池(22),用于向含氧气体供给含氧气体的含氧气体供给装置(14) 流路(34),用于向燃料气体流场(36)供给燃料气体的燃料气体供给装置(16),用于向燃料气体流场供给作为清扫气体的空气的清扫气体供给装置 (36)和控制器(20)。 控制器(20)包括用于在燃料电池(22)停止运行之后检测燃料电池(22)的电压的电压检测单元(72)和用于在燃料气体中开始清除的清除控制单元(74) 在检测到的电压暂时降低之后,被扫气供给装置(18)的流场(36)增加并再次降低到预设电压以下。