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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。

    Multi-layer membrane-electrode-assembly (ML-MEA) and method for its manufacture
    2.
    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。

    Process for manufacturing a catalyst-coated polymer electrolyte membrane
    4.
    发明申请
    Process for manufacturing a catalyst-coated polymer electrolyte membrane 审中-公开
    用于制造催化剂涂覆的聚合物电解质膜的方法

    公开(公告)号：US20070077350A1

    公开(公告)日：2007-04-05

    申请号：US10562994

    申请日：2004-06-24

    申请人： Claus-Rupert Hohenthanner ,  Heike Kuhnhold ,  Bernhardt Barth ,  Peter Seipel

    发明人： Claus-Rupert Hohenthanner ,  Heike Kuhnhold ,  Bernhardt Barth ,  Peter Seipel

    IPC分类号： B05D5/12 ,  H01M8/10 ,  H01M4/86

    CPC分类号： H01M4/881 ,  H01M4/8814 ,  H01M4/8828 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1039 ,  H01M8/1067 ,  H01M8/1097 ,  Y02E60/523 ,  Y02P70/56

    摘要： The present invention relates to a process for manufacture of a catalyst-coated polymer electrolyte membrane (CCM) for electrochemical devices. The process is characterized in that a polymer electrolyte membrane is used which is supported on its backside to a first supporting foil. After coating of the front side, a second supporting foil is applied to the front side, the first supporting foil is removed and subsequently the second catalyst layer is applied to the back side. In this process, the membrane is in contact with at least one supporting foil during all processing steps. Smooth, wrinkle-free catalyst-coated membranes are obtained in a continuous process with high production speed. The 3-layer catalyst-coated membranes (CCMs) are used in electrochemical devices, such as PEM fuel cells, direct methanol fuel cells (DMFC), sensors or electrolyzers.

    摘要翻译： 本发明涉及用于电化学装置的催化剂涂覆的聚合物电解质膜（CCM）的制造方法。 该方法的特征在于使用其背面支撑在第一支撑箔上的聚合物电解质膜。 在涂覆前侧之后，将第二支撑箔施加到前侧，移除第一支撑箔，随后将第二催化剂层施加到背面。 在该过程中，膜在所有处理步骤期间与至少一个支撑箔接触。 平滑，无皱纹的催化剂涂层膜以连续的方法获得，生产速度高。 三层催化剂涂覆膜（CCM）用于电化学装置，如PEM燃料电池，直接甲醇燃料电池（DMFC），传感器或电解槽。

    Membrane Electrode Assembly for Use in Electochmical Devices
    9.
    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。