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公开(公告)号：US5935725A
公开(公告)日：1999-08-10
申请号：US896816
申请日：1997-07-18
CPC分类号： H01M8/2465 , H01M8/02 , H01M8/04089 , H01M2300/0082 , H01M8/04156 , H01M8/04291
摘要： A fuel cell including an electrode assembly, a cell assembly mounted to the electrode assembly forming an anode and at least one cathode channel, and a flow facilitator located within each cathode channel. The flow facilitator functions as a wick during the operation of the fuel cell to drain fluid from the cathode channels. It also provides resistance to water vapor flow within the cathode channels, thereby increasing humidification of the fuel cell. Moreover, the flow facilitator increases residence time of oxidant within the cathode channels. The flow facilitator is preferably a thread made of any one or any combination of cotton, silk, fiberglass, nylon or polyester, and may be coated with polytetraflouroethylene. The flow facilitator may be a single element that is weaved in specific patterns through the cathode channels or it can include a plurality of elements, one element for each of the cathode channels. A fuel cell stack includes a plurality of fuel cells, each fuel cell formed by a bipolar plate, an electrode assembly with an electrolyte, and an anode channel. Each bipolar plate includes at least one cathode channel. The flow facilitator is weaved between and into a subset of the plurality of cathode channels.
摘要翻译： 一种燃料电池，包括电极组件，安装到形成阳极的电极组件的电池组件和至少一个阴极通道，以及位于每个阴极通道内的流动促进器。 在燃料电池操作期间，流动促进器用作芯，以从阴极通道排出流体。 它还提供对阴极通道内的水蒸气流的阻力，从而增加燃料电池的加湿。 此外，流动促进剂增加氧化剂在阴极通道内的停留时间。 流动促进器优选是由棉，丝，玻璃纤维，尼龙或聚酯的任何一种或任何组合制成的螺纹，并且可以涂覆聚四氟乙烯。 流动促进器可以是通过阴极通道以特定图案编织的单个元件，或者可以包括多个元件，每个阴极通道的一个元件。 燃料电池堆包括多个燃料电池，由双极板形成的每个燃料电池，具有电解质的电极组件和阳极通道。 每个双极板包括至少一个阴极通道。 流动促进器在多个阴极通道的子集之间编织并进入其中。
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公开(公告)号：US09599583B2
公开(公告)日：2017-03-21
申请号：US14115514
申请日：2012-05-30
CPC分类号： G01N27/223 , G01N27/048 , G01N27/121
摘要： A humidity sensor element includes a dielectric substrate, a nonporous conductive electrode disposed on the dielectric substrate, a permeable conductive electrode having a thickness in a range of from 4 to 10 nanometers and permeable by water vapor, and a detection layer sandwiched between the nonporous conductive electrode and the permeable conductive electrode. The permeable conductive electrode is parallel to the nonporous electrode. Both conductive electrodes have respective conductive leads attached thereto. The detection layer includes a copolymer having monomeric units comprising wherein M represents H, or an alkali metal. A humidity sensor including the humidity sensor element is also disclosed.
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公开(公告)号：US07740962B2
公开(公告)日：2010-06-22
申请号：US11567644
申请日：2006-12-06
申请人： Krzysztof A. Lewinski , Kim B. Saulsbury , Mark K. Debe , Andrew J. L. Steinbach , Thomas Herdtle , Edward M. Fischer , Michael A. Yandrasits , Hamid R. Mortazavi
发明人： Krzysztof A. Lewinski , Kim B. Saulsbury , Mark K. Debe , Andrew J. L. Steinbach , Thomas Herdtle , Edward M. Fischer , Michael A. Yandrasits , Hamid R. Mortazavi
CPC分类号： H01M8/248 , H01M8/0247 , H01M8/0258 , H01M8/0267 , H01M8/04074 , H01M8/241 , H01M8/2457 , H01M8/2483 , H01M8/2485
摘要： A fuel cell assembly includes first and second compression members. Two or more membrane electrode assembly (MEA) stacks are disposed between the compression members, each MEA stack having a positive and negative end. A first current collector is electrically coupled to a positive end of a first stack of the MEA stacks. A second current collector is electrically coupled to a negative end of a second stack of the MEA stacks. A current shunt is disposed between the compression members and electrically couples the MEA stacks.
摘要翻译： 燃料电池组件包括第一和第二压缩构件。 两个或多个膜电极组件（MEA）堆叠设置在压缩构件之间，每个MEA堆叠具有正端和负端。 第一集电器电耦合到MEA堆叠的第一堆叠的正端。 第二集电器电耦合到MEA堆叠的第二堆叠的负端。 电流分流器设置在压缩构件之间并电耦合MEA堆叠。
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