Method for reducing degradation in a fuel cell
    92.
    发明授权
    Method for reducing degradation in a fuel cell 有权
    降低燃料电池劣化的方法

    公开(公告)号:US07419732B2

    公开(公告)日:2008-09-02

    申请号:US11055993

    申请日:2005-02-11

    IPC分类号: H01M8/00 H01M8/10 H01M4/00

    摘要: The invention is a method of reducing catalyst dissolution in the cathode of a membrane electrode assembly fuel cell, the method comprising the steps of: (a) preparing a membrane electrode assembly comprising an anode, a cathode and a polymer electrolyte membrane interposed between the anode and the cathode; (b) assembling a fuel cell using the membrane electrode assembly; (c) applying a fluid comprising an oxidant to the cathode of the_membrane electrode assembly; (d) applying a fluid comprising a fuel to the anode of the membrane electrode assembly; and (e) supplying a sufficient quantity of reducing agent to the cathode to maintain the average open-circuit voltage of the cathode at less than about 0.98 V.

    摘要翻译: 本发明是减少膜电极组件燃料电池阴极中催化剂溶解的方法,该方法包括以下步骤:(a)制备膜电极组件,其包括阳极,阴极和置于阳极之间的聚合物电解质膜 和阴极; (b)使用所述膜电极组件组装燃料电池; (c)将包含氧化剂的流体施加到所述膜电极组件的阴极; (d)将包含燃料的流体施加到所述膜电极组件的阳极; 和(e)向阴极供应足量的还原剂,以将阴极的平均开路电压维持在小于约0.98V。

    Method for producing membrane-electrode assembly for fuel cell
    93.
    发明申请
    Method for producing membrane-electrode assembly for fuel cell 审中-公开
    燃料电池用膜电极组件的制造方法

    公开(公告)号:US20070141237A1

    公开(公告)日:2007-06-21

    申请号:US10595454

    申请日:2004-09-15

    IPC分类号: B05D5/12 H01M4/88

    摘要: Disclosed is a method for removing a solvent (41) in an electrolyte membrane (24) as a constituent of a membrane-electrode assembly (12) used in a fuel cell. The membrane-electrode assembly is arranged in a water vapor, and the water vapor is introduced into the electrolyte membrane by being transmitted through diffusion layers (21, 27) respectively on positive/negative electrode sides. The solvent in the electrolyte membrane is removed by the thus-introduced water vapor. This removal of the solvent is performed at temperatures which are not higher than the decomposition temperature of the hydrocarbon solid polymer.

    摘要翻译: 公开了一种在电解质膜(24)中除去溶剂(41)的方法,作为在燃料电池中使用的膜 - 电极组件(12)的组成部分。 膜 - 电极组件布置在水蒸气中,水蒸气通过分别在正极/负极侧上的扩散层(21,27)传输到电解质膜中。 电解质膜中的溶剂被这样引入的水蒸气除去。 溶剂的除去在不高于烃类固体聚合物的分解温度的温度下进行。

    Solid state, thin film proton exchange membrane for fuel cells
    94.
    发明申请
    Solid state, thin film proton exchange membrane for fuel cells 审中-公开
    固态,薄膜用于燃料电池的质子交换膜

    公开(公告)号:US20070042252A1

    公开(公告)日:2007-02-22

    申请号:US11204600

    申请日:2005-08-16

    申请人: Rudolf Kazarinov

    发明人: Rudolf Kazarinov

    IPC分类号: H01M8/02 H01M8/10

    摘要: A fuel cell according to the invention comprises a multilayer proton exchange membrane having high proton conductivity in the temperature range of 300-500° C. This is achieved by the use of very thin (

    摘要翻译: 根据本发明的燃料电池包括在300-500℃的温度范围内具有高质子传导性的多层质子交换膜。这通过在金属基底上使用非常薄(<1μm)的金属氧化物聚合物膜来实现 通过电解阳极氧化金属合金。 根据本发明的示例性质子交换膜包括在铌箔上制造的Ta 2-x H z O x O 5 O 5膜。 本发明允许功率密度显着增加,并因此显着降低每单位功率的燃料电池成本。

    Membrane electrode assembly (mea), methode for its manufacturing and a method for preparing a membrane to be aassembled in a mea
    95.
    发明申请
    Membrane electrode assembly (mea), methode for its manufacturing and a method for preparing a membrane to be aassembled in a mea 有权
    膜电极组件(mea),其制造方法和制备膜的组合方法

    公开(公告)号:US20060280980A1

    公开(公告)日:2006-12-14

    申请号:US10577223

    申请日:2004-09-14

    摘要: A method for preparing a membrane to be assembled in a membrane, electrode assembly includes the step of swelling an ion-conducting membrane in a liquid containing at least one solvent or to an atmosphere containing the vapor phase of at least one solvent by controlling the content of the solvent in the ion-conducting membrane. A method for manufacturing a membrane electrode assembly using an ion conducting membrane includes the steps of: providing an ion-conducting membrane in a pre-swollen state; coating the ion-conducting membrane on both sides with an electrode layer to form a sandwich; and hot-pressing the sandwich to form an ion-conducting bonding of the layers of the sandwich. Furthermore, a membrane electrode assembly is disclosed including a hot pressed sandwich having an electrode layer, a ion-conducting membrane and again an electrode layer, thereby using the ion-conducting membrane in its pre-swollen status prior to the hot-pressing.

    摘要翻译: 一种用于制备膜组装在膜,电极组件中的膜的方法,包括以下步骤:通过控制含有至少一种溶剂的液体或含有至少一种溶剂的气相的气体,使含有至少一种溶剂的液体的离子传导膜溶胀, 的离子传导膜中的溶剂。 使用离子导电膜制造膜电极组件的方法包括以下步骤:提供处于预膨胀状态的离子传导膜; 用电极层在两侧涂覆离子传导膜以形成三明治; 并热压三明治以形成三明治层的离子导电结合。 此外,公开了一种膜电极组件,其包括具有电极层,离子传导膜和再次电极层的热压夹层,从而在热压之前使用离子传导膜处于其预膨胀状态。

    IN-SITU MEASUREMENT OF WATER OF HYDRATION IN POLYELECTROLYTE MEMBRANE (PEM) OF FUEL CELL
    97.
    发明申请
    IN-SITU MEASUREMENT OF WATER OF HYDRATION IN POLYELECTROLYTE MEMBRANE (PEM) OF FUEL CELL 审中-公开
    燃料电池的聚电解质膜(PEM)水凝胶水位测量

    公开(公告)号:US20050150276A1

    公开(公告)日:2005-07-14

    申请号:US10707760

    申请日:2004-01-09

    申请人: GERALD SCHULTZ

    发明人: GERALD SCHULTZ

    摘要: A method and Apparatus for measuring water of hydration in a polyelectrolyte membrane (PEM) employs a source of input radiation directed at an input location on the PEM, and a detector responsively positioned at an output location relative to the input location for determining a sensible change in the input radiation indicative of a level of water hydration in the PEM. The method measures hydration of the (PEM) by forming an input location in the PEM; launching a source of radiation into the input location for reaction with the PEM material; detecting the reaction of the input radiation with the PEM material; and determining a sensible change in the input radiation as a result of the reaction indicative of a level of water hydration in the PEM.

    摘要翻译: 用于测量聚电解质膜(PEM)中的水合水的方法和装置使用指向PEM上的输入位置的输入辐射源和响应地位于相对于输入位置的输出位置处的检测器,以确定明显变化 在输入辐射中指示PEM中的水合水平。 该方法通过在PEM中形成输入位置来测量(PEM)的水合作用; 向输入位置发射辐射源,以与PEM材料反应; 检测输入辐射与PEM材料的反应; 并且由于反应结果指示PEM中的水合水平,确定输入辐射的明显变化。

    Polymer membrane and a process for the production thereof
    99.
    发明申请
    Polymer membrane and a process for the production thereof 失效
    聚合物膜及其生产方法

    公开(公告)号:US20040086764A1

    公开(公告)日:2004-05-06

    申请号:US10602652

    申请日:2003-06-25

    发明人: Mikael Paronen

    IPC分类号: H01M008/10 C08J005/22

    摘要: The present invention relates to a sulfonated polymer membrane and to a process for the preparation thereof. According to the process, a polymer film is irradiated, and the irradiated polymer film is sulfonated in order to link sulfonic acid groups thereto. According to the invention, the sulfonation is continued until the total concentration of sulfonic acid groups in the membrane is 0.4-3.0 meq/g and they are homogeneously distributed in the membrane material in such a manner that their concentration in the middle of the membrane is at minimum 0.2 meq/g. With the help of the invention, it is possible by a rapid and simple process to prepare membranes the chemical and mechanical properties of which can be regulated by means of the selection of the initial film, by irradiation and by the sulfonation process.

    摘要翻译: 本发明涉及一种磺化聚合物膜及其制备方法。 根据该方法,照射聚合物膜,并将辐射的聚合物膜磺化以使磺酸基团连接。 根据本发明,继续进行磺化,直到膜中的磺酸基团的总浓度为0.4-3.0meq / g,并且均匀地分布在膜材料中,使得它们在膜中间的浓度为 至少0.2meq / g。 借助于本发明,可以通过快速和简单的方法制备膜,其化学和机械性质可以通过初始膜的选择,通过照射和磺化过程来调节。