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71.发明授权Fuel cell, a fuel cell electrode, and a method for making a fuel cell electrode 失效燃料电池，燃料电池用电极以及燃料电池用电极的制造方法
公开(公告)号：US4808493A
公开(公告)日：1989-02-28
申请号：US062666
申请日：1987-06-16
申请人： Richard D. Breault
发明人： Richard D. Breault
摘要： A fuel cell electrode having a non-uniform catalyst loading is disclosed. The electrode has a layer of a hydrophobic polymer and a platinum or platinum alloy catalyst supported on the surface of a porous substrate. The thickness of the layer increases along one axis of the surface so that the electrode has a catalyst loading that increases along the one axis of the surface. A process for making such an electrode having steps of contacting the upper surface of a porous substrate with a mixture of a hydrophobic polymer and a carbon supported catalyst, and establishing a reduced pressure distribution along the lower surface of the porous substrate to cause the catalyst mixture to be deposited as a non-uniform layer on the upper surface of the substrate. A fuel cell utilizing such an electrode is also disclosed.
摘要翻译： 公开了具有不均匀的催化剂负载的燃料电池电极。 电极具有支撑在多孔基材表面上的疏水性聚合物层和铂或铂合金催化剂层。 层的厚度沿着表面的一个轴线增加，使得电极具有沿表面的一个轴线增加的催化剂负载。 一种制造这种电极的方法，其具有使多孔基材的上表面与疏水性聚合物和碳负载的催化剂的混合物接触的步骤，并且沿着多孔基材的下表面建立减压分布，以使催化剂混合物 在基板的上表面上沉积为不均匀的层。 还公开了利用这种电极的燃料电池。
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公开(公告)号：US4756981A
公开(公告)日：1988-07-12
申请号：US947168
申请日：1986-12-29
CPC分类号： H01M8/2415 , H01M8/0271 , H01M8/0297 , Y02P70/56
摘要： A seal structure 60 for a porous plate of an electrochemical cell, such as plates 18, 20, includes a sealing material disposed in a seal region 66 of the plate to form a hydrophilic barrier to gas with an electrolyte and a hydrophobic layer 62 to block the loss of electrolyte from the hydrophilic layer is disclosed. Various construction details including a method for making the plate are disclosed which increase the cross pressure the sealing region of the plate can withstand. In one embodiment, the seal region 66 is impregnated with powder having a low structure and predetermined particle size using a pressurized liquid carrier. A FEP Teflon film bonds adjacent electrolyte reservoir plates together.
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公开(公告)号：US4426340A
公开(公告)日：1984-01-17
申请号：US306836
申请日：1981-09-29
CPC分类号： B29C70/12 , B29C43/222 , B29C70/50
摘要： A process for fabricating a resin bonded carbon fiber article, and in particular electrochemical cell electrode substrates and the like requiring different mean pore sizes in different areas, involves simultaneously heating and compacting different mixtures of carbon fibers and resin in different areas of an article forming mold, wherein the carbon fibers in each of the different mixtures have different, known bulk densities. The different bulk densities of the carbon fibers in the mixtures are chosen to yield the desired mean pore sizes and other properties in the article after heating and compacting the mixtures. Preferably, the different bulk densities are obtained using different carbon fiber lengths in the molding mixtures. The process is well suited to forming ribbed electrode substrates with preselected optimum mean pore sizes, porosities, and densities in the ribs, the webs connecting the ribs, and in the edge seals.
摘要翻译： 制造树脂粘合碳纤维制品的方法，特别是在不同区域中需要不同平均孔径的电化学电池电极基板等涉及同时加热和压实制品成型模具的不同区域中的碳纤维和树脂的不同混合物 其中每种不同混合物中的碳纤维具有不同的已知体积密度。 选择混合物中碳纤维的不同体积密度以在加热和压实混合物之后产生所需的平均孔径和其它性能。 优选地，在模制混合物中使用不同的碳纤维长度获得不同的体积密度。 该方法非常适合于形成具有预选的最佳平均孔径，孔隙度和肋中的密度，连接肋的腹板和边缘密封件的带肋电极基底。
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公开(公告)号：US4365008A
公开(公告)日：1982-12-21
申请号：US287464
申请日：1981-07-27
CPC分类号： H01M8/04074 , H01M4/86 , H01M8/0271 , H01M8/2415 , Y10T428/24777 , Y10T428/30
摘要： A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.
摘要翻译： 诸如电极基底的多孔燃料电池组件具有致密的边缘，其在用电解质浸泡时在操作期间形成改进的气体密封。 边缘由与组件的其余部分相同的组成制成，并且通过在制造过程中沿着边缘压缩该材料的增加的厚度而制成。
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公开(公告)号：US4269642A
公开(公告)日：1981-05-26
申请号：US88993
申请日：1979-10-29
CPC分类号： H01M4/8636 , H01M4/861 , H01M4/96 , H01M8/0234 , H01M8/0271 , Y10T156/109 , Y10T428/24777 , Y10T428/30
摘要： A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.
摘要翻译： 诸如电极基底的多孔燃料电池组件具有致密的边缘，其在用电解质浸泡时在操作期间形成改进的气体密封。 边缘由与组件的其余部分相同的组成制成，并且通过在制造过程中沿着边缘压缩该材料的增加的厚度而制成。
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公开(公告)号：US4233369A
公开(公告)日：1980-11-11
申请号：US88994
申请日：1979-10-29
CPC分类号： H01M8/04074 , F28F21/02 , F28F3/12 , H01M8/0297
摘要： A cooler assembly for a stack of fuel cells comprises a fibrous, porous coolant tube holder sandwiched between and bonded to at least one of a pair of gas impervious graphite plates. The tubes are disposed in channels which pass through the holder. The channels are as deep as the holder thickness, which is substantially the same as the outer diameter of the tubes. Gas seals along the edges of the holder parallel to the direction of the channels are gas impervious graphite strips.
摘要翻译： 用于一堆燃料电池的冷却器组件包括夹在一对不透气石墨板中的至少一个并粘合到其上的纤维多孔冷却剂管保持器。 管被设置在通过保持器的通道中。 通道与保持器厚度一样深，其与管的外径基本相同。 沿着保持器平行于通道方向的边缘的气密封是不透气的石墨条。
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公开(公告)号：US4017663A
公开(公告)日：1977-04-12
申请号：US565177
申请日：1975-04-04
申请人： Richard D. Breault
发明人： Richard D. Breault
摘要： A novel electrode for use in an electrochemical cell is provided by a pyrolytic carbon coated, hydrophobic polymer impregnated carbon paper having a catalyst-hydrophobic polymer layer applied thereon.
摘要翻译： 用于电化学电池的新型电极由涂覆有催化剂 - 疏水性聚合物层的热解碳涂覆的疏水性聚合物浸渍碳纸提供。
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公开(公告)号：US10170783B2
公开(公告)日：2019-01-01
申请号：US13145626
申请日：2009-06-18
申请人： Sridhar V. Kanuri , Richard D. Breault , Kishore Kumar Tenneti , Ned E. Cipollini , Frank E. Kenney, III
发明人： Sridhar V. Kanuri , Richard D. Breault , Kishore Kumar Tenneti , Ned E. Cipollini , Frank E. Kenney, III
IPC分类号： H01M8/00 , H01M8/086 , H01M8/0284 , H01M8/0286 , H01M8/0228
摘要： A stack (10) of fuel cells (11) is manufactured with barriers (32) to prevent migration of a liquid electrolyte (such as phosphoric acid) out of the cells (11). The barrier (32) is secured within a step (34) formed within a land region (28) of a separator plate assembly (18) and extends from an edge (30) of the separator plate assembly (18) all or a portion of a distance between the edge (30) and a flow channel (24) defined within the separator plate assembly (18). The barrier (32) also extends away from the edge (30) a distance of between 0.051 and about 2.0 millimeters (about 2 and about 80 mils. The barrier (32) includes a hydrophobic, polymeric film (36), a pressure sensitive adhesive (38) as an assembly aid, and a fluoroelastomer bonding agent (40).
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公开(公告)号：US09685666B2
公开(公告)日：2017-06-20
申请号：US14352730
申请日：2011-10-25
IPC分类号： H01M8/04 , H01M8/04007 , H01M8/0213 , H01M8/0221 , H01M8/0223 , H01M8/0267 , H01M8/086
CPC分类号： H01M8/04067 , H01M8/0213 , H01M8/0221 , H01M8/0223 , H01M8/0258 , H01M8/0267 , H01M8/04074 , H01M8/086
摘要： An end-cooler assembly for a fuel cell includes a cooler having a coolant tube array. A composite material includes flake graphite and hydrophobic polymer. The composite material surrounds the coolant tube array and provides a first side. A flow field is formed in the first side. A thermal dam is embedded in and is entirely surrounded by the composite material. The thermal dam is arranged between the coolant tube array and the flow field. The coolant tube array, composite material, flow field and thermal dam comprise a unitary, monolithic structure bound together by the composite material.
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公开(公告)号：US08357253B2
公开(公告)日：2013-01-22
申请号：US12739205
申请日：2007-12-17
申请人： Richard D. Breault
发明人： Richard D. Breault
CPC分类号： B65G57/00 , C04B35/64 , C04B35/83 , C04B2235/9623 , H01M8/0234 , H01M8/0245 , H01M8/086 , H01M2008/1095 , Y02E60/50
摘要： A method of heat treating a substrate for a fuel cell includes stacking substrates to form a group. A dimension is determined for a plate corresponding to a resulting mass that is less than a predetermined mass. The plate is arranged above the group to apply a weight of the plate to the group. The resulting masses for spacer plates and intermediate lifting plates, for example, are minimized to reduce the pressure differential between the bottom and top substrates in the heat treat assembly. In another disclosed method, a dimension for a plate, such as a top plate, is determined that corresponds to a resulting mass that is greater than a predetermined mass. The plate is arranged above the group to apply a weight of the plate to the group. The top plate resulting mass is selected to minimize a variation in the average pressure of the substrates throughout the heat treat assembly.
摘要翻译： 一种用于燃料电池的基板的热处理方法包括堆叠基板以形成一组。 对于对应于小于预定质量的所得质量的板来确定尺寸。 板被布置在组上方以将板的重量施加到组。 例如，用于间隔板和中间提升板的所得质量被最小化以减少热处理组件中的底部和顶部基底之间的压力差。 在另一公开的方法中，确定板的尺寸，例如顶板，其对应于大于预定质量的所得质量。 板被布置在组上方以将板的重量施加到组。 选择顶板产生的质量以最小化整个热处理组件中的基底的平均压力的变化。
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