Gas Diffusion Electrode and Solid Polymer Electrolyte Fuel Cell
    11.
    发明申请
    Gas Diffusion Electrode and Solid Polymer Electrolyte Fuel Cell 有权
    气体扩散电极和固体聚合物电解质燃料电池

    公开(公告)号:US20080299430A1

    公开(公告)日:2008-12-04

    申请号:US11571010

    申请日:2005-06-21

    IPC分类号: H01M8/10 H01M4/86

    摘要: A gas diffusion electrode includes: an electrode catalyst layer 13; microporous layers 11 and 12 arranged on the electrode catalyst layer 13 and including at least two layers which are second and first microporous layers 12 and 11 formed of materials having different water repellencies, wherein the second microporous layer 12 disposed on the electrode catalyst layer 13 side is composed to have higher water repellency than the first microporous layer 11; and an oxidant gas diffusion substrate 10 disposed on the microporous layers 11 and 12 and formed of carbon fiber. According to the gas diffusion electrode of the present invention, drainability of generated water from the electrode catalyst layer to the gas diffusion layer and moisture retention and gas diffusibility of the electrode catalyst layer can be enhanced. Moreover, according to a solid polymer electrolyte fuel cell of the present invention, stable power generation characteristics can be obtained even under an operating condition with wide humidity range and current density range.

    摘要翻译: 气体扩散电极包括:电极催化剂层13; 布置在电极催化剂层13上并且包括至少两层的微孔层11和12是由具有不同防水性的材料形成的第二和第一微孔层12和11,其中设置在电极催化剂层13侧的第二微孔层12 被构成为具有比第一微孔层11更高的拒水性; 以及设置在微孔层11和12上并由碳纤维形成的氧化剂气体扩散基板10。 根据本发明的气体扩散电极,可以提高从电极催化剂层到气体扩散层的产生的水的排水性和电极催化剂层的保湿性和气体扩散性。 此外,根据本发明的固体高分子电解质型燃料电池,即使在宽湿度范围和电流密度范围的运行条件下也能够获得稳定的发电特性。

    Fuel reforming device
    15.
    发明授权
    Fuel reforming device 失效
    燃料重整装置

    公开(公告)号:US07717970B2

    公开(公告)日:2010-05-18

    申请号:US10546862

    申请日:2004-02-27

    申请人: Norihisa Waki

    发明人: Norihisa Waki

    IPC分类号: B01J8/00 B01J10/00 B01J19/00

    摘要: A reformer (8) reforms hydrocarbon fuel and generates reformate gas. A first carbon monoxide oxidizer (1) and second carbon monoxide oxidizer (2) disposed in series decrease the carbon monoxide concentration of the reformate gas by a prefential oxidation. The air for the preferential oxidation is supplied to the carbon monoxide oxidizer (1, 2) from a compressor (9). The reformer (8) consumes the water heated by the reaction heat of the first carbon monoxide oxidizer (1). The water amount supplied for the reformer (8) increases as a fuel reforming requirement of the reformer (8) increases. When the fuel reforming requirement increases, the water heating capability of the first carbon monoxide oxidizer (1) is enhanced with a sufficient response by increasing the proportion of air supplied to the first carbon monoxide oxidizer (1).

    摘要翻译: 改革者(8)改革碳氢化合物燃料并产生重整气。 串联设置的第一一氧化碳氧化器(1)和第二一氧化碳氧化器(2)通过预氧化降低重整气体的一氧化碳浓度。 用于优先氧化的空气从压缩机(9)供应到一氧化碳氧化剂(1,2)。 重整器(8)消耗由第一一氧化碳氧化器(1)的反应热加热的水。 由于重整器(8)的燃料重整要求增加,为重整器(8)供给的水量增加。 当燃料重整要求增加时,通过增加供应到第一一氧化碳氧化剂(1)的空气的比例,通过充分的响应来提高第一一氧化碳氧化剂(1)的水加热能力。