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1. 发明授权

US07226689B2 Method of making a membrane electrode assembly for electrochemical fuel cells 有权
标题翻译：制造电化学燃料电池的膜电极组件的方法
公开(公告)号：US07226689B2
公开(公告)日：2007-06-05
申请号：US10601275
申请日：2003-06-20
申请人： Siyu Ye , Paul Beattie , Todd E Wilke , Shannon R Hodgson , Kyoung Bai , Michael V Lauritzen
发明人： Siyu Ye , Paul Beattie , Todd E Wilke , Shannon R Hodgson , Kyoung Bai , Michael V Lauritzen
IPC分类号： H01M8/00 , H01M4/00
CPC分类号： H01M4/8807 , H01M4/8663 , H01M4/8889 , H01M4/90 , H01M8/1004 , Y02P70/56
摘要： A membrane electrode assembly may be made using a one-sided catalyst coated membrane (CCM) wherein only one catalyst layer, either the anode or the cathode, is coated directly on the ion-exchange membrane. In particular, a one-sided CCM may be used where it may not be practicable to coat both sides of the ion-exchange membrane with catalyst layers such as when PTFE is added to the anode catalyst layer to render it reversal tolerant.
摘要翻译：膜电极组件可以使用其中只有一个催化剂层（阳极或阴极）直接涂覆在离子交换膜上的单面催化剂涂覆膜（CCM）制成。特别地，可以使用单面CCM，其中可能不可行地用催化剂层涂覆离子交换膜的两侧，例如当将PTFE加入到阳极催化剂层中以使其具有耐逆转性时。

2. 发明授权

US06210820B1 Method for operating fuel cells on impure fuels 有权
标题翻译：在不纯燃料上运行燃料电池的方法
公开(公告)号：US06210820B1
公开(公告)日：2001-04-03
申请号：US09221206
申请日：1998-12-23
申请人： Shanna D. Knights , Michael V. Lauritzen , Rajeev Vohra , David P. Wilkinson
发明人： Shanna D. Knights , Michael V. Lauritzen , Rajeev Vohra , David P. Wilkinson
IPC分类号： H01M800
CPC分类号： H01M8/04552 , H01M8/04447 , H01M8/04559 , H01M8/04753 , H01M8/04798 , H01M8/0662 , H01M2300/0082
摘要： The electrocatalysts in certain fuel cell systems can be poisoned by impurities in the fuel stream directed to the fuel cell anodes. Introducing a variable concentration of oxygen into the impure fuel stream supplied to the fuel cells can reduce or prevent poisoning without excessive use of oxygen. The variation may be controlled based on the voltage of a carbon monoxide sensitive sensor cell incorporated in the system. Further, the variation in oxygen concentration may be periodic or pulsed. A variable air bleed method is particularly suitable for use in solid polymer fuel cell systems operating on fuel streams containing carbon monoxide.
摘要翻译：某些燃料电池系统中的电催化剂可能被导向燃料电池阳极的燃料流中的杂质中毒。将可变浓度的氧引入供应到燃料电池的不纯燃料流中可以减少或防止中毒而不过度使用氧气。可以基于结合在系统中的一氧化碳敏感传感器电池的电压来控制变化。此外，氧浓度的变化可以是周期性的或脉冲的。可变放气方法特别适用于在含有一氧化碳的燃料流上操作的固体聚合物燃料电池系统。

3. 发明授权

US07060166B2 Aqueous ionomeric gels and products and methods related thereto 失效
公开(公告)号：US07060166B2
公开(公告)日：2006-06-13
申请号：US10712400
申请日：2003-11-12
申请人： Wesley Gervais , Michael V Lauritzen , Kristi M Zychowka , Lawrence A Vanderark , Kevin Michael Colbow
发明人： Wesley Gervais , Michael V Lauritzen , Kristi M Zychowka , Lawrence A Vanderark , Kevin Michael Colbow
IPC分类号： C25B13/08
CPC分类号： C08B5/02 , C08J3/075 , H01M4/8828
摘要： An aqueous ionomer gel having a high viscosity, particularly a proton conducting ionomer, as well as to related products incorporating such gels. Such aqueous ionomer gels are suitable for suspending catalysts for formation of catalyst inks, which in turn are suitable for screen printing on a variety of surfaces. Representative surfaces are the electrode or membrane surfaces in an electrochemical fuel cell. Methods for making aqueous ionomer gels are also disclosed.

4. 发明授权

US06679979B2 Aqueous ionomeric gels and products and methods related thereto 失效
公开(公告)号：US06679979B2
公开(公告)日：2004-01-20
申请号：US10015528
申请日：2001-12-12
申请人： Wesley Gervais , Michael V. Lauritzen , Kristi M. Zychowka , Lawrence A. Vanderark , Kevin Michael Colbow
发明人： Wesley Gervais , Michael V. Lauritzen , Kristi M. Zychowka , Lawrence A. Vanderark , Kevin Michael Colbow
IPC分类号： C25B1308
CPC分类号： C08B5/02 , C08J3/075 , H01M4/8828
摘要： An aqueous ionomer gel having a high viscosity, particularly a proton conducting ionomer, as well as to related products incorporating such gels. Such aqueous ionomer gels are suitable for suspending catalysts for formation of catalyst inks, which in turn are suitable for screen printing on a variety of surfaces. Representative surfaces are the electrode or membrane surfaces in an electrochemical fuel cell. Methods for making aqueous ionomer gels are also disclosed.

5. 发明授权

US07235315B2 Electrochemical fuel cell stack having a plurality of integrated voltage reversal protection diodes 失效
标题翻译：具有多个集成电压反向保护二极管的电化学燃料电池堆
公开(公告)号：US07235315B2
公开(公告)日：2007-06-26
申请号：US10737540
申请日：2003-12-16
申请人： Shanna D Knights , Jacob W De Vaal , Michael V Lauritzen , David P Wilkinson
发明人： Shanna D Knights , Jacob W De Vaal , Michael V Lauritzen , David P Wilkinson
IPC分类号： H01M8/04 , H01M8/10
CPC分类号： H01M8/242 , H01M8/0263 , H01M8/0271 , H01M8/04552 , H01M8/04671 , H01M8/04955 , H01M8/241 , H01M8/2483
摘要： An electrochemical fuel cell stack comprises a plurality of fuel cell assemblies, wherein, each fuel cell assembly comprises a cell compressed between a pair of flow field plates, a perimeter seal circumscribing the cell and interposed between the pair of flow field plates, and a first diode, having an aspect ratio greater than 10:1, positioned adjacent to, and outside of, the perimeter seal along a first edge of the cell and interposed between the pair of flow field plates.
摘要翻译：一种电化学燃料电池堆包括多个燃料电池组件，其中，每个燃料电池组件包括压缩在一对流场板之间的电池，围绕该电池的周边密封件并插入该对流场板之间，具有大于10:1的纵横比的二极管，沿着电池的第一边缘定位在周边密封件的周围和外部，并插入在一对流场板之间。

6. 发明授权

US06673480B1 Sensor cell for an electrochemical fuel cell stack 失效
标题翻译：用于电化学燃料电池堆的传感器电池
公开(公告)号：US06673480B1
公开(公告)日：2004-01-06
申请号：US09719829
申请日：2001-02-23
申请人： David P. Wilkinson , Shanna D. Knights , Michael V. Lauritzen
发明人： David P. Wilkinson , Shanna D. Knights , Michael V. Lauritzen
IPC分类号： H01M804
CPC分类号： H01M8/023 , H01M8/0263 , H01M8/0267 , H01M8/0269 , H01M8/04029 , H01M8/0432 , H01M8/04873 , H01M8/04902 , H01M8/04951 , H01M8/1011 , H01M8/2415 , H01M8/2483 , Y02E60/523
摘要： An electrochemical fuel cell stack includes a plurality of fuel cells. At least one of the fuel cells is a sensor cell. The sensor cell has at least one structural dissimilarity with respect to the remaining fuel cells of the plurality. The structural dissimilarity may include, for example, a reduced sensor cell electrochemically active area, reduced electrocatalyst loading, modified anode or cathode flow field, different electrocatalyst composition, or a modified coolant flow field configuration. The sensor cell operates under substantially the same conditions as the remaining cells in the stack. However, in response to a change in a particular stack operating condition, an electrical or thermal response, preferably a voltage change, is induced in the sensor cell which is not simultaneously induced in the remaining fuel cells. Thus, the sensor cell can detect undesirable conditions and its response can be used to initiate corrective action. More than one sensor cell, specific to different types of conditions, may be employed in the stack. In the absence of undesirable conditions, the sensor cell can function as a power-producing fuel cell.
摘要翻译：电化学燃料电池堆包括多个燃料电池。至少一个燃料电池是传感器单元。传感器单元相对于多个的剩余燃料电池具有至少一个结构不相似性。结构不相似性可以包括例如减少的传感器电池电化学活性区域，降低的电催化剂负载量，改进的阳极或阴极流场，不同的电催化剂组合物或改进的冷却剂流场构型。传感器单元在与堆叠中的剩余单元基本相同的条件下工作。然而，响应于特定堆栈操作条件的变化，在传感器单元中感应出电或热响应（优选电压变化），该传感器单元不会在剩余的燃料电池中同时被引发。因此，传感器单元可以检测不期望的条件，并且其响应可用于启动校正动作。可以在堆叠中使用针对不同类型条件的多于一个的传感器单元。在没有不期望的条件的情况下，传感器电池可以用作发电燃料电池。

7. 发明授权

US06500572B2 Method for operating fuel cells on impure fuels 失效
标题翻译：在不纯燃料上运行燃料电池的方法
公开(公告)号：US06500572B2
公开(公告)日：2002-12-31
申请号：US09772036
申请日：2001-01-29
申请人： Shanna D. Knights , Michael V. Lauritzen , Rajeev Vohra , David P. Wilkinson
发明人： Shanna D. Knights , Michael V. Lauritzen , Rajeev Vohra , David P. Wilkinson
IPC分类号： H01M800
CPC分类号： H01M8/04552 , H01M8/04447 , H01M8/04559 , H01M8/04753 , H01M8/04798 , H01M8/0662 , H01M2300/0082
摘要： The electrocatalysts in certain fuel cell systems can be poisoned by impurities in the fuel stream directed to the fuel cell anodes. Introducing a variable concentration of oxygen into the impure fuel stream supplied to the fuel cells can reduce or prevent poisoning without excessive use of oxygen. The variation may be controlled based on the voltage of a carbon monoxide sensitive sensor cell incorporated in the system. Further, the variation in oxygen concentration may be periodic or pulsed. A variable air bleed method is particularly suitable for use in solid polymer fuel cell systems operating on fuel streams containing carbon monoxide.
摘要翻译：某些燃料电池系统中的电催化剂可能被导向燃料电池阳极的燃料流中的杂质中毒。将可变浓度的氧引入供应到燃料电池的不纯燃料流中可以减少或防止中毒而不过度使用氧气。可以基于结合在系统中的一氧化碳敏感传感器电池的电压来控制变化。此外，氧浓度的变化可以是周期性的或脉冲的。可变放气方法特别适用于在含有一氧化碳的燃料流上操作的固体聚合物燃料电池系统。

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