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    Membrane electrode assembly for use in electrochemical devices
    1.
    发明授权
    Membrane electrode assembly for use in electrochemical devices 有权
    用于电化学装置的膜电极组件

    公开(公告)号：US08394551B2

    公开(公告)日：2013-03-12

    申请号：US10564794

    申请日：2004-07-14

    申请人： Ralf Zuber ,  Sandra Wittpahl ,  Klaus Schaack ,  Holger Dziallas ,  Peter Seipel ,  Günther Vulpius ,  Bernd Dillmann

    发明人： Ralf Zuber ,  Sandra Wittpahl ,  Klaus Schaack ,  Holger Dziallas ,  Peter Seipel ,  Günther Vulpius ,  Bernd Dillmann

    IPC分类号： H01M8/00

    CPC分类号： H01M8/1004 ,  C25B9/10 ,  H01M4/8626 ,  H01M4/8896 ,  H01M8/0247 ,  Y02E60/366 ,  Y02E60/523

    摘要： The invention relates to a membrane-electrode assembly (MEA) for electrochemical devices, in particular for membrane fuel cells. The membrane-electrode assembly has a semi-coextensive design and comprises an ion-conducting membrane, two catalyst layers and gas diffusion layers of differing sizes on the front side and rear side. The first gas diffusion layer has smaller planar dimensions than the ion-conducting membrane, while the second gas diffusion layer has essentially the same planar dimensions as the ion-conducting membrane. As a result, the ion-conducting membrane has a surface which is not supported by a gas diffusion layer on the front side.The membrane-electrode assembly has, owing to the particular construction, a stable structure which can be handled readily and displays advantages in the sealing of the reactive gases from one another and also in terms of the electrical properties. In particular, the hydrogen penetration current is significantly reduced.New processes for producing the MEA of the invention are described, in particular the method of heat pulse welding.The membrane-electrode assembly is used in PEM fuel cells, direct methanol fuel cells, electrolysers and other electrochemical devices.

    摘要翻译： 本发明涉及用于电化学装置的膜 - 电极组件（MEA），特别是用于膜式燃料电池。 膜 - 电极组件具有半共扩展设计，并且包括在前侧和后侧上具有不同尺寸的离子传导膜，两个催化剂层和气体扩散层。 第一气体扩散层具有比离子传导膜更小的平面尺寸，而第二气体扩散层具有与离子传导膜基本相同的平面尺寸。 结果，离子传导膜具有不在前侧的气体扩散层支撑的表面。 由于特殊的结构，膜 - 电极组件具有可以容易地处理的稳定的结构，并且在反应气体彼此密封以及电性能方面显示出优点。 特别地，氢穿透电流显着降低。 对本发明的MEA的制造新工艺进行了详细描述，特别是热脉冲焊接方法。 膜电极组件用于PEM燃料电池，直接甲醇燃料电池，电解槽和其他电化学装置。

    Membrane Electrode Assembly for Use in Electochmical Devices
    2.
    发明申请
    Membrane Electrode Assembly for Use in Electochmical Devices 有权
    用于电子设备的膜电极组件

    公开(公告)号：US20070215461A1

    公开(公告)日：2007-09-20

    申请号：US10564794

    申请日：2004-07-14

    申请人： Ralf Zuber ,  Sandra Wittpahl ,  Klaus Schaack ,  Holger Dziallas ,  Peter Seipel ,  Gunther Vulpius ,  Bernd Dillmann

    发明人： Ralf Zuber ,  Sandra Wittpahl ,  Klaus Schaack ,  Holger Dziallas ,  Peter Seipel ,  Gunther Vulpius ,  Bernd Dillmann

    IPC分类号： C25C7/02

    CPC分类号： H01M8/1004 ,  C25B9/10 ,  H01M4/8626 ,  H01M4/8896 ,  H01M8/0247 ,  Y02E60/366 ,  Y02E60/523

    摘要： The invention relates to a membrane-electrode assembly (MEA) for electrochemical devices, in particular for membrane fuel cells. The membrane-electrode assembly has a semi-coextensive design and comprises an ion-conducting membrane, two catalyst layers and gas diffusion layers of differing sizes on the front side and rear side. The first gas diffusion layer has smaller planar dimensions than the ion-conducting membrane, while the second gas diffusion layer has essentially the same planar dimensions as the ion-conducting membrane. As a result, the ion-conducting membrane has a surface which is not supported by a gas diffusion layer on the front side. The membrane-electrode assembly has, owing to the particular construction, a stable structure which can be handled readily and displays advantages in the sealing of the reactive gases from one another and also in terms of the electrical properties. In particular, the hydrogen penetration current is significantly reduced. New processes for producing the MEA of the invention are described, in particular the method of heat pulse welding. The membrane-electrode assembly is used in PEM fuel cells, direct methanol fuel cells, electrolysers and other electrochemical devices.

    摘要翻译： 本发明涉及用于电化学装置的膜 - 电极组件（MEA），特别是用于膜式燃料电池。 膜 - 电极组件具有半共扩展设计，并且包括在前侧和后侧上具有不同尺寸的离子传导膜，两个催化剂层和气体扩散层。 第一气体扩散层具有比离子传导膜更小的平面尺寸，而第二气体扩散层具有与离子传导膜基本相同的平面尺寸。 结果，离子传导膜具有不在前侧的气体扩散层支撑的表面。 由于特殊的结构，膜 - 电极组件具有可以容易地处理的稳定的结构，并且在反应气体彼此密封以及电性能方面显示出优点。 特别地，氢穿透电流显着降低。 对本发明的MEA的制造新工艺进行了详细描述，特别是热脉冲焊接方法。 膜电极组件用于PEM燃料电池，直接甲醇燃料电池，电解槽和其他电化学装置。

    Catalyst-coated ionomer membrane with protective film layer and membrane-electrode-assembly made thereof
    7.
    发明授权
    Catalyst-coated ionomer membrane with protective film layer and membrane-electrode-assembly made thereof 有权
    具有保护膜层的催化剂涂覆的离聚物膜和由其制成的膜 - 电极组件

    公开(公告)号：US08021796B2

    公开(公告)日：2011-09-20

    申请号：US10668559

    申请日：2003-09-22

    申请人： Ralf Zuber ,  Klaus Schaack ,  Sandra Wittpahl ,  Alexander Kabza ,  Markus Maier

    发明人： Ralf Zuber ,  Klaus Schaack ,  Sandra Wittpahl ,  Alexander Kabza ,  Markus Maier

    IPC分类号： H01M2/14 ,  H01M2/08 ,  H01M8/10 ,  H01M4/88 ,  B05D5/12

    CPC分类号： H01M8/0273 ,  H01M8/1004 ,  H01M8/242 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/523 ,  Y02P70/56

    摘要： The present invention relates to the field of electrochemical cells and fuel cells, and more specifically to polymer-electrolyte-membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC). It is directed to catalyst-coated ionomer membranes (“CCMs”) and membrane-electrode-assemblies (“MEAs”) that contain one or more protective film layers for protection, sealing and better handling purposes. The one or more protective film layers are attached to the surface of said catalyst-coated membranes in such a way that they overlap with a region of the passive non-coated ionomer area, and with a region of the active area that is coated with a catalyst layer. Furthermore, the present invention discloses a process for manufacture of CCMs and MEAs that contain protective film layers. The materials may be used as components for the manufacture of low temperature fuel cell stacks.

    摘要翻译： 本发明涉及电化学电池和燃料电池领域，更具体地涉及聚合物 - 电解质膜燃料电池（PEMFC）和直接甲醇燃料电池（DMFC）。 它涉及含有一个或多个保护膜层的催化剂涂覆的离聚物膜（“CCM”）和膜电极组件（“MEA”），用于保护，密封和更好的处理目的。 一个或多个保护膜层以这样的方式附着在所述催化剂涂覆的膜的表面上，使得它们与被动未涂覆的离子交联聚合物区域的区域重叠，并且与涂覆有活性区域的区域 催化剂层。 此外，本发明公开了一种制造含有保护膜层的CCM和MEA的方法。 这些材料可以用作制造低温燃料电池堆的部件。

    Process for manufacturing a catalyst-coated ionomer membrane with protective film layer
    8.
    发明授权
    Process for manufacturing a catalyst-coated ionomer membrane with protective film layer 有权
    制备具有保护膜层的催化剂涂覆的离聚物膜的方法

    公开(公告)号：US08685200B2

    公开(公告)日：2014-04-01

    申请号：US13222666

    申请日：2011-08-31

    申请人： Ralf Zuber ,  Klaus Schaack ,  Sandra Wittpahl ,  Alexander Kabza ,  Markus Maier

    发明人： Ralf Zuber ,  Klaus Schaack ,  Sandra Wittpahl ,  Alexander Kabza ,  Markus Maier

    IPC分类号： B32B37/00 ,  B05D5/12 ,  H01M2/08 ,  H01M4/02

    CPC分类号： H01M8/0273 ,  H01M8/1004 ,  H01M8/242 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/523 ,  Y02P70/56

    摘要： The present invention relates to the field of electrochemical cells and fuel cells, and more specifically to polymer-electrolyte-membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC). It is directed to catalyst-coated ionomer membranes (“CCMs”) and membrane-electrode-assemblies (“MEAs”) that contain one or more protective film layers for protection, sealing and better handling purposes. The one or more protective film layers are attached to the surface of said catalyst-coated membranes in such a way that they overlap with a region of the passive non-coated ionomer area, and with a region of the active area that is coated with a catalyst layer. Furthermore, the present invention discloses a process for manufacture of CCMs and MEAs that contain protective film layers. The materials may be used as components for the manufacture of low temperature fuel cell stacks.

    摘要翻译： 本发明涉及电化学电池和燃料电池领域，更具体地涉及聚合物 - 电解质膜燃料电池（PEMFC）和直接甲醇燃料电池（DMFC）。 它涉及含有一个或多个保护膜层的催化剂涂覆的离聚物膜（“CCM”）和膜电极组件（“MEA”），用于保护，密封和更好的处理目的。 一个或多个保护膜层以这样的方式附着到所述催化剂涂覆的膜的表面上，使得它们与被动未涂覆的离子交联聚合物区域的区域重叠，并且涂覆有活性区域的区域 催化剂层。 此外，本发明公开了一种制造含有保护膜层的CCM和MEA的方法。 这些材料可以用作制造低温燃料电池堆的部件。

    Multi-layer membrane-electrode-assembly (ML-MEA) and method for its manufacture
    10.
    发明授权
    Multi-layer membrane-electrode-assembly (ML-MEA) and method for its manufacture 失效
    多层膜电极组装（ML-MEA）及其制造方法

    公开(公告)号：US08361674B2

    公开(公告)日：2013-01-29

    申请号：US11578316

    申请日：2005-04-12

    申请人： Ralf Zuber ,  Knut Fehl ,  Peter Seipel ,  Sven Bornbaum

    发明人： Ralf Zuber ,  Knut Fehl ,  Peter Seipel ,  Sven Bornbaum

    IPC分类号： H01M8/02 ,  H01M8/10

    CPC分类号： H01M8/0284 ,  H01M8/0273 ,  H01M8/0297 ,  H01M8/1011 ,  H01M8/241 ,  H01M2008/1095 ,  Y02E60/523 ,  Y02P70/56 ,  Y10T156/10

    摘要： The invention relates to the field of electrochemical cells and fuel cells, more specifically to polymer-electrolyte-membrane fuel cells (PEMFC) and direct methanol fuel cells (DMFC). A multi-layer membrane-electrode-assembly (ML-MEA) comprising two electrically conductive bipolar plates and a membrane-electrode-assembly (MEA) bonded together by means of an electrically insulating adhesive material is disclosed. The adhesive material, preferably a polyurethane-based system, is in direct contact with the protective film layers attached to front side and the back side of the MEA, thus contamination of the ionomer membrane and/or the electrode layers with adhesive components is avoided. Multi-layer MEAs with improved long term stability and life time are obtained. The products are used for the manufacture of low temperature PEMFC and DMFC stacks.

    摘要翻译： 本发明涉及电化学电池和燃料电池领域，更具体地涉及聚合物 - 电解质膜燃料电池（PEMFC）和直接甲醇燃料电池（DMFC）。 公开了一种包括两个导电双极板和通过电绝缘粘合材料粘合在一起的膜 - 电极 - 组件（MEA）的多层膜 - 电极组件（ML-MEA）。 粘合剂材料（优选基于聚氨酯的体系）与附着在MEA的前侧和后侧的保护膜层直接接触，从而避免了用粘合剂组分污染离聚物膜和/或电极层。 获得具有改善的长期稳定性和寿命的多层MEA。 该产品用于制造低温PEMFC和DMFC堆叠。