公开(公告)号：US20070231689A1

公开(公告)日：2007-10-04

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

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。

公开(公告)号：US07419740B2

公开(公告)日：2008-09-02

申请号：US09907961

申请日：2001-07-19

申请人： Matthias Binder ,  Ralf Zuber ,  Markus Vogt ,  Gerhard Heinz

发明人： Matthias Binder ,  Ralf Zuber ,  Markus Vogt ,  Gerhard Heinz

IPC分类号： H01M4/90 ,  H01M4/86 ,  H01M4/88 ,  H01M8/02 ,  H01M8/10

CPC分类号： H01M4/926 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/92 ,  H01M4/921 ,  H01M8/1004 ,  Y02P70/56

摘要： A membrane electrode assembly for polymer electrolyte fuel cells consisting of a polymer electrolyte membrane, both faces of which are in contact with porous reaction layers and gas distributor layers. The reaction layers contain noble metal catalysts supported on carbon and a proton-conducting polymer, a so-called ionomer. At least one of the two reaction layers also contains a noble metal black.

摘要翻译： 一种用于聚合物电解质燃料电池的膜电极组件，其由聚合物电解质膜组成，其两面都与多孔反应层和气体分配器层接触。 反应层含有负载在碳上的贵金属催化剂和质子传导性聚合物，即所谓的离聚物。 两个反应层中的至少一个还含有贵金属黑色。

公开(公告)号：US06803143B2

公开(公告)日：2004-10-12

申请号：US09844677

申请日：2001-04-30

申请人： Ralf Zuber ,  Armin Bayer ,  Knut Fehl ,  Volker Bänisch ,  Thomas Lehmann

发明人： Ralf Zuber ,  Armin Bayer ,  Knut Fehl ,  Volker Bänisch ,  Thomas Lehmann

IPC分类号： H01M486

CPC分类号： H01M4/96 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0245 ,  H01M8/1004 ,  H01M8/1007 ,  H01M2300/0082 ,  Y02P70/56

摘要： A gas diffusion structure for polymer electrolyte fuel cells having a sheet-like carbon substrate made hydrophobic and having two main opposing surfaces and a contact layer on one of these surfaces. The contact layer is formed of an intimate mixture of at least one hydrophobic polymer, which can be polyethylene, polypropylene or polytetrafluoroethylene, and finely divided carbon particles, wherein the weight percentage of the carbon particles relative to the total weight of the contact layer amounts to 40 to 90 wt. %. The gas diffusion structure is a carbon substrate made hydrophobic by at least one hydrophobic polymer and the hydrophobic polymers are restricted to two layers extending from both opposing surfaces into the carbon substrate down to a depth of from 5 to 40 &mgr;m and the hydrophobic polymers fill of from 20 to 60% of the pore volume within those layers.

摘要翻译： 一种用于聚合物电解质燃料电池的气体扩散结构，其具有疏水性并具有两个主要相对表面的片状碳基底和在这些表面之一上的接触层。 接触层由至少一种疏水性聚合物（其可以是聚乙烯，聚丙烯或聚四氟乙烯）和细碎的碳颗粒的紧密混合物形成，其中碳颗粒相对于接触层的总重量的重量百分比等于 40〜90重量％ ％。 气体扩散结构是通过至少一种疏水性聚合物疏水化的碳底物，并且疏水性聚合物被限制为从两个相对表面延伸到碳衬底中的深度为5至40μm的两层，疏水性聚合物填充 在这些层内的孔体积的20至60％。

公开(公告)号：US07713502B2

公开(公告)日：2010-05-11

申请号：US11574199

申请日：2005-08-31

申请人： Joachim Koehler ,  Ralf Zuber ,  Matthias Binder ,  Volker Baenisch ,  Marco Lopez

发明人： Joachim Koehler ,  Ralf Zuber ,  Matthias Binder ,  Volker Baenisch ,  Marco Lopez

IPC分类号： C22B11/00

CPC分类号： H01M8/008 ,  B01D11/0203 ,  C08J11/08 ,  C08J2327/12 ,  C22B7/009 ,  C22B11/046 ,  C22B11/048 ,  H01M2008/1095 ,  Y02P10/214 ,  Y02P20/544 ,  Y02P20/582 ,  Y02W30/701 ,  Y02W30/86

摘要： The invention relates to a process for recycling fuel cell components containing fluorine-containing and precious metal-containing constituents: in this process, the fluorine-containing constituents are separated off from the precious metal-containing constituents by treatment with a medium present in the supercritical state. Preference is given to using water as supercritical medium. After the fluorine-containing constituents have been separated off, the precious metal-containing residues can be recovered in a recycling process without harmful fluorine or hydrogen fluoride emissions. The fluorine-containing constituents can likewise be recovered. The process is used in the recovery of precious metals and/or fluorine-containing constituents from membrane fuel cells, electrolysis cells, batteries, sensors and other electrochemical devices.

摘要翻译： 本发明涉及一种用于再循环含有含氟和含贵金属的成分的燃料电池组件的方法：在该方法中，通过用存在于超临界中的介质处理从含贵金属的成分中分离出含氟成分 州。 优先使用水作为超临界介质。 含氟成分被分离后，含有贵金属的残留物可以在循环过程中回收，而不会有有害的氟或氟化氢排放。 含氟成分同样可以回收。 该方法用于从膜燃料电池，电解槽，电池，传感器和其它电化学装置回收贵金属和/或含氟成分。

公开(公告)号：US5882549A

公开(公告)日：1999-03-16

申请号：US968090

申请日：1997-11-12

申请人： Ralf Zuber ,  Knut Fehl ,  Willi Peter ,  Elisabeth Kasper

发明人： Ralf Zuber ,  Knut Fehl ,  Willi Peter ,  Elisabeth Kasper

IPC分类号： H05K1/09 ,  C08K3/08 ,  C08K3/22 ,  H01B1/16 ,  H01C17/065 ,  H01B1/22 ,  B05D5/12

CPC分类号： H01C17/06506 ,  C08K3/08 ,  C08K3/22

摘要： A stable paste for fired-on layers which produces few pyrolysis products contains 0.3 to 3 wt. % of polyethylenimine as binder. The binder inhibits sedimentation of the contents of the paste.

摘要翻译： 产生少量热解产物的焙烧层的稳定糊料含有0.3-3重量％ 聚乙烯亚胺作为粘合剂的百分比。 粘合剂抑制糊料内容物的沉降。

公开(公告)号：US20080064771A1

公开(公告)日：2008-03-13

申请号：US11574199

申请日：2005-08-31

申请人： Joachim Koehler ,  Ralf Zuber ,  Matthias Binder ,  Volker Baenisch ,  Marco Lopez

发明人： Joachim Koehler ,  Ralf Zuber ,  Matthias Binder ,  Volker Baenisch ,  Marco Lopez

IPC分类号： C08J11/04 ,  C22B11/00 ,  C22B7/00

CPC分类号： H01M8/008 ,  B01D11/0203 ,  C08J11/08 ,  C08J2327/12 ,  C22B7/009 ,  C22B11/046 ,  C22B11/048 ,  H01M2008/1095 ,  Y02P10/214 ,  Y02P20/544 ,  Y02P20/582 ,  Y02W30/701 ,  Y02W30/86

摘要： The invention relates to a process for recycling fuel cell components containing fluorine-containing and precious metal-containing constituents: in this process, the fluorine-containing constituents are separated off from the precious metal-containing constituents by treatment with a medium present in the supercritical state. Preference is given to using water as supercritical medium. After the fluorine-containing constituents have been separated off, the precious metal-containing residues can be recovered in a recycling process without harmful fluorine or hydrogen fluoride emissions. The fluorine-containing constituents can likewise be recovered. The process is used in the recovery of precious metals and/or fluorine-containing constituents from membrane fuel cells, electrolysis cells, batteries, sensors and other electrochemical devices.

摘要翻译： 本发明涉及一种用于再循环含有含氟和含贵金属成分的燃料电池组件的方法：在该方法中，通过用存在于超临界中的介质处理含氟成分与贵金属成分分离 州。 优先使用水作为超临界介质。 含氟成分被分离后，含有贵金属的残留物可以在循环过程中回收，而不会有有害的氟或氟化氢排放。 含氟成分同样可以回收。 该方法用于从膜燃料电池，电解槽，电池，传感器和其它电化学装置回收贵金属和/或含氟成分。

公开(公告)号：US20070202388A1

公开(公告)日：2007-08-30

申请号：US10591565

申请日：2005-03-03

申请人： Joachim Koehler ,  Markus Gelz ,  Ralf Zuber

发明人： Joachim Koehler ,  Markus Gelz ,  Ralf Zuber

IPC分类号： H01M4/94 ,  H01M8/10

CPC分类号： H01M8/1004 ,  H01M8/04119 ,  H01M8/04291 ,  H01M2300/0082

摘要： The invention relates to membrane electrode units (MEUs) for membrane fuel cells. The products contain different gas diffusion layers on the anode side and on the cathode side. The amount of the water repellant agent (WRA) in the anode gas diffusion layer is identical or higher than the amount of water repellant agent in the cathode gas diffusion layer and is in the range of 20 to 35% by weight (based on total weight of the gas diffusion layer). At the same time, the total pore volume V of the cathode gas diffusion layer is higher than the total pore volume of the anode gas diffusion layer (Vcathode>VAnode). The membrane electrode units as well as the PEM stacks made therewith show improved performance when operated with unhumidified operating gases (such as dry hydrogen, reformate gas, oxygen or air).

摘要翻译： 本发明涉及膜燃料电池的膜电极单元（MEU）。 该产品在阳极侧和阴极侧含有不同的气体扩散层。 阳极气体扩散层中的防水剂（WRA）的量与阴极气体扩散层中的防水剂的量相同或更高，为20〜35重量％（以总重量计） 的气体扩散层）。 同时，阴极气体扩散层的总孔体积V高于阳极气体扩散层（V阴极 V阳极）的总孔体积， 。 当用不加湿的操作气体（例如干燥氢气，重整气体，氧气或空气）操作时，膜电极单元以及由其制成的PEM堆叠显示出改善的性能。

公开(公告)号：US06500217B1

公开(公告)日：2002-12-31

申请号：US09340197

申请日：1999-06-28

申请人： Karl-Anton Starz ,  Ralf Zuber ,  Wolfgang Göttenauer ,  Knut Fehl ,  Manfred Diehl

发明人： Karl-Anton Starz ,  Ralf Zuber ,  Wolfgang Göttenauer ,  Knut Fehl ,  Manfred Diehl

IPC分类号： H01N404

CPC分类号： B41M3/006 ,  B41M1/04 ,  B41M1/06 ,  B41M1/10 ,  B41M1/12 ,  B41M1/26 ,  B41M1/30 ,  B41M3/008 ,  C25B9/10 ,  H01M8/1004 ,  H01M2300/0082 ,  Y02P70/56 ,  Y10T29/49115

摘要： A process is disclosed for applying electrode layers to a polymer electrolyte membrane strip in a desired pattern, wherein the front and back of the membrane are continuously printed with the electrode layers in the desired pattern using an ink containing an electrocatalyst, and the printed electrode layers are dried at elevated temperature immediately after the printing operation, the printing taking place while maintaining accurate positioning of the patterns of the electrode layers on the front and back in relation to one another.

摘要翻译： 公开了一种以期望的图案将电极层施加到聚合物电解质膜条上的方法，其中使用包含电催化剂的油墨以期望的图案连续地印刷膜的正面和背面，并且印刷电极层 在打印操作之后立即在升高的温度下干燥，同时保持电极层的图案相对于彼此正面和背面的精确定位。

公开(公告)号：US5861222A

公开(公告)日：1999-01-19

申请号：US822864

申请日：1997-03-24

申请人： Andreas Fischer ,  Hartmut Wendt ,  Ralf Zuber

发明人： Andreas Fischer ,  Hartmut Wendt ,  Ralf Zuber

IPC分类号： H01M4/86 ,  H01M4/92 ,  H01M8/1004

CPC分类号： H01M4/928 ,  H01M4/86 ,  H01M4/926 ,  H01M8/1004 ,  H01M2300/0082 ,  H01M4/921 ,  Y02P70/56

摘要： A porous gas diffusion electrode for membrane fuel cells on an ion-conducting polymer. The electrode contains a finely divided electrocatalyst which is dispersed in a proton-conducting ionomer and has a total porosity of more than 40 to less than 75%. It supplies considerably improved performance data in comparison to known electrodes. The electrode can be produced by using pore-forming materials which are dissolved during the re-protonation of the ion-conducting polymers with sulfuric acid or are decomposed by the action of temperature.

摘要翻译： 用于离子导电聚合物上的膜燃料电池的多孔气体扩散电极。 电极含有细分散的电催化剂，其分散在质子传导离聚物中，总孔隙率大于40至小于75％。 与已知电极相比，它提供了显着改进的性能数据。 可以通过使用在离子导电聚合物与硫酸重质子化过程中溶解的成孔材料或通过温度分解来分解电极来制造电极。

公开(公告)号：US06720104B2

公开(公告)日：2004-04-13

申请号：US09933121

申请日：2001-08-21

申请人： Ralf Zuber ,  Armin Bayer ,  Heike Kühnhold ,  Udo Stenke

发明人： Ralf Zuber ,  Armin Bayer ,  Heike Kühnhold ,  Udo Stenke

IPC分类号： H01M214

CPC分类号： H01M8/0263 ,  B60L11/1898 ,  B60L2240/36 ,  H01M8/0234 ,  H01M8/0271 ,  H01M8/0273 ,  H01M8/0282 ,  H01M8/1007 ,  H01M8/2405 ,  H01M8/242 ,  H01M8/248 ,  Y02T90/34

摘要： A PEM fuel cell stack including one or more fuel cells (1) arranged on top of one another, each of which contains a membrane electrode assembly (2) between two electrically conductive bipolar plates (3,4), the surfaces of which are equipped with flow channels (10) open on one side for the supply of reactive gases, whereby the membrane electrode assemblies each comprise a polymer electrolyte membrane (5), both sides of which are in contact with a reaction layer (6,7), whereby the surface area of the reaction layers is smaller than that of the polymer electrolyte membrane and a compressible, coarse-pore gas distribution layer (8,9) made from carbon fiber fabric is inserted between each reaction layer and the adjacent bipolar plates congruent to the reaction lawyers along with seals (11,12) in the area outside the surface covered by the gas distribution layers, whereby the gas distribution layers in the no-load condition display a thickness D1 and the seals a thickness D2. The PEM fuel cell stack is featured by the gas distribution layers in the PEM fuel cell stack being compressed to 25 to 60% of the original thickness.

摘要翻译： 一种PEM燃料电池堆，其包括彼此顶部布置的一个或多个燃料电池（1），每个燃料电池单元在两个导电双极板（3,4）之间包含一个膜电极组件（2），其表面装备有 其中流动通道（10）在一侧开放以供应反应性气体，由此膜电极组件各自包括聚合物电解质膜（5），其两侧与反应层（6,7）接触，由此 反应层的表面积小于聚合物电解质膜的表面积，并且将由碳纤维织物制成的可压缩粗孔气体分布层（8,9）插入每个反应层和相邻的双极板之间 反应律师以及由气体分布层覆盖的表面外的密封件（11,12），由此在空载状态下的气体分布层显示厚度D1，密封件厚度为D2。 PEM燃料电池堆的特征在于PEM燃料电池堆中的气体分布层被压缩到原始厚度的25至60％。