MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL
    1.
    发明申请
    MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL 审中-公开
    用于燃料电池和燃料电池的膜电极组件

    公开(公告)号:US20090317683A1

    公开(公告)日:2009-12-24

    申请号:US12310235

    申请日:2007-08-23

    IPC分类号: H01M8/10

    摘要: The present invention is to provide a membrane electrode assembly for fuel cell which retains the wet state of a polymer electrolyte membrane and has excellent output characteristic under low humidified condition, under high-temperature condition, or in high current density region, and a fuel cell provided with the membrane electrode assembly. A membrane electrode assembly for fuel cell of the present invention comprises a polymer electrolyte membrane containing at least one or more kinds of proton-conducting polymers, a fuel electrode disposed on one surface of the polymer electrolyte membrane and an oxidant electrode disposed on the other surface thereof, wherein hydrophilicity of one surface of the polymer electrolyte membrane differs from that of the other surface of the polymer electrolyte membrane, in which a surface having relatively high hydrophilicity is defined as a first surface and a surface having relatively low hydrophilicity is defined as a second surface, the fuel electrode is disposed on the first surface of the polymer electrolyte membrane, and the oxidant electrode is disposed on the second surface thereof. A fuel cell of the present invention is provided with the membrane electrode assembly.

    摘要翻译: 本发明提供一种保持聚合物电解质膜的湿润状态的燃料电池用膜电极组件,在高温条件下或高电流密度区域下具有优异的输出特性,燃料电池 设置有膜电极组件。 本发明的燃料电池用膜电极组件包括含有至少一种以上的质子传导性聚合物的高分子电解质膜,配置在高分子电解质膜的一面上的燃料电极和设置在另一方的氧化剂电极 其中,高分子电解质膜的一个表面的亲水性与聚合物电解质膜的另一个表面的亲水性不同,其中具有较高亲水性的表面被定义为第一表面,具有相对低的亲水性的表面被定义为 第二表面,燃料电极设置在聚合物电解质膜的第一表面上,氧化剂电极设置在其第二表面上。 本发明的燃料电池设置有膜电极组件。

    MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL
    2.
    发明申请
    MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL AND FUEL CELL 审中-公开
    用于燃料电池和燃料电池的膜电极组件

    公开(公告)号:US20090325029A1

    公开(公告)日:2009-12-31

    申请号:US12310367

    申请日:2007-08-23

    IPC分类号: H01M8/10

    摘要: A membrane electrode assembly for fuel cell that irrespectively of the front or backside of polymeric electrolyte membrane, exhibits high output performance, and that exhibits high junction at an interface between polymeric electrolyte membrane and electrode even under low humidification condition or high temperature condition, or in high current density region, realizing appropriate water management and excellent output characteristics. Further, there is provided a fuel cell including the above assembly. The membrane electrode assembly for fuel cell and fuel cell is one including a polymeric electrolyte membrane containing at least one type of proton conductive polymer; a fuel electrode disposed on one major surface of the polymeric electrolyte membrane; and an oxidizer electrode disposed on the other major surface of the polymeric electrolyte membrane, characterized in that in the use of water contact angle for specifying the hydrophilicity of each surface of the polymeric electrolyte membrane, the difference between the water contact angle on the one major surface of the polymeric electrolyte membrane and that on the other major surface thereof is 30° or less. The provided fuel cell is one having the above assembly.

    摘要翻译: 用于燃料电池的膜电极组件,与聚合物电解质膜的正面或背面无关,表现出高的输出性能,并且即使在低加湿条件或高温条件下也可在高分子电解质膜和电极之间的界面处显示高接合,或者在 高电流密度区,实现适当的水管理和优异的输出特性。 此外,提供了包括上述组件的燃料电池。 用于燃料电池和燃料电池的膜电极组件是包括含有至少一种类型的质子传导性聚合物的高分子电解质膜的膜电极组件; 设置在聚合物电解质膜的一个主表面上的燃料电极; 以及设置在聚合物电解质膜的另一主表面上的氧化剂电极,其特征在于,在使用水接触角来确定高分子电解质膜的每个表面的亲水性时,一个主要的水接触角之间的差异 高分子电解质膜的表面和另一个主表面的表面为30°以下。 所提供的燃料电池是具有上述组件的燃料电池。

    Electrolyte membrane and method of selecting the same
    3.
    发明授权
    Electrolyte membrane and method of selecting the same 失效
    电解质膜及其选择方法

    公开(公告)号:US08128836B2

    公开(公告)日:2012-03-06

    申请号:US12308174

    申请日:2007-06-11

    IPC分类号: H01M4/88 H01M6/00 H01M6/04

    摘要: The present invention is to provide an electrolyte membrane which retains durability even after having undergone a dimensional change accompanying chemical deterioration caused owing to radicals having high oxidizing ability such as hydroxyl radicals (.OH) or peroxide radicals (.OOH), and the selecting method thereof.An electrolyte membrane has an amount of dimensional change in a plane direction between dimensions obtained in a dry state before and after carrying out the Fenton test, the amount of dimensional change before and after the Fenton test being smaller than an amount of maximum elastic deformation in a plane direction obtained in dry state before carrying out the Fenton test, provided that the Fenton test is carried out under the following condition, and the selecting method of the same. (1) iron ion (Fe2+) concentration: 4 ppm, (2) hydrogen peroxide concentration: 3 wt %, (3) boiling temperature: 80° C., (4) boiling time: 120 minutes.

    摘要翻译: 本发明提供一种电解质膜,其即使在由于具有高自氧基(.OH)或过氧化物自由基(.OOH)等氧化能力高的自由基引起的化学劣化而经历尺寸变化之后也能够保持耐久性,并且选择方法 其中。 电解质膜在进行芬顿试验之前和之后具有在干燥状态下获得的尺寸之间的平面方向上的尺寸变化量,芬顿试验前后的尺寸变化量小于最大弹性变形量 在执行芬顿测试之前在干燥状态下获得的平面方向,只要在以下条件下进行芬顿测试,以及其选择方法。 芬顿试验条件>(1)铁离子(Fe2 +)浓度:4ppm,(2)过氧化氢浓度:3重量%,(3)沸腾温度:80℃,(4)沸腾时间:120分钟。

    Electrolyte Membrane and Method of Selecting the Same
    4.
    发明申请
    Electrolyte Membrane and Method of Selecting the Same 失效
    电解质膜及其选择方法

    公开(公告)号:US20090166579A1

    公开(公告)日:2009-07-02

    申请号:US12308174

    申请日:2007-06-11

    IPC分类号: H01M4/00 G01N3/20

    摘要: The present invention is to provide an electrolyte membrane which retains durability even after having undergone a dimensional change accompanying chemical deterioration caused owing to radicals having high oxidizing ability such as hydroxyl radicals (.OH) or peroxide radicals (.OOH), and the selecting method thereof.An electrolyte membrane has an amount of dimensional change in a plane direction between dimensions obtained in a dry state before and after carrying out the Fenton test, the amount of dimensional change before and after the Fenton test being smaller than an amount of maximum elastic deformation in a plane direction obtained in dry state before carrying out the Fenton test, provided that the Fenton test is carried out under the following condition, and the selecting method of the same. (1) iron ion (Fe2+) concentration: 4 ppm, (2) hydrogen peroxide concentration: 3 wt %, (3) boiling temperature: 80° C., (4) boiling time: 120 minutes

    摘要翻译: 本发明提供一种电解质膜,其即使在由于具有高自氧基(.OH)或过氧化物自由基(.OOH)等氧化能力高的自由基引起的化学劣化而经历尺寸变化之后也能够保持耐久性,并且选择方法 其中。 电解质膜在进行芬顿试验之前和之后具有在干燥状态下获得的尺寸之间的平面方向上的尺寸变化量,芬顿试验前后的尺寸变化量小于最大弹性变形量 在执行芬顿测试之前在干燥状态下获得的平面方向,只要在以下条件下进行芬顿测试,以及其选择方法。 芬顿试验条件>(1)铁离子(Fe2 +)浓度:4ppm,(2)过氧化氢浓度:3重量%,(3)沸腾温度:80℃,(4)沸腾时间:120分钟