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公开(公告)号：US08318362B2
公开(公告)日：2012-11-27
申请号：US11803772
申请日：2007-05-16
IPC分类号： H01M8/00
CPC分类号： H01M8/086 , H01M8/0258 , H01M8/0267 , H01M8/0271 , H01M8/0276 , H01M8/0284 , H01M8/0293 , H01M8/04007 , H01M8/04119 , H01M8/04283 , H01M8/241
摘要： A fuel cell 12 has a liquid electrolyte 20, a cathode electrode 28, and an anode electrode 26. The fuel cell includes an electrolyte condensation zone 58 extending from an edge 56 of a first catalyst layer 36 on the cathode electrode to an outer edge 48 of an edge seals 52 and 49. An anode electrode has an anode catalyst layer 30 with an end substantially coinciding with an inner edge 53 of the edge seals. The acid condensation zone is located near the reactant exit, so that electrolyte that has evaporated into the reactant stream can condense out before leaving the fuel cell for re-absorption back into the fuel cell.
摘要翻译： 燃料电池12具有液体电解质20，阴极电极28和阳极电极26.燃料电池包括从阴极电极上的第一催化剂层36的边缘56延伸到外边缘48的电解液冷凝区58 边缘密封件52和49.阳极电极具有阳极催化剂层30，其端部与边缘密封件的内边缘53基本重合。 酸性冷凝区位于反应物出口附近，使得蒸发到反应物流中的电解质可以在离开燃料电池之前冷凝，以便再吸收回燃料电池。
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公开(公告)号：US20080118789A1
公开(公告)日：2008-05-22
申请号：US11718335
申请日：2004-12-29
IPC分类号： H01M8/10
CPC分类号： H01M8/04119 , H01M4/86 , H01M8/0213 , H01M8/0226 , H01M8/0258 , H01M8/0267 , H01M8/0297 , H01M8/04283 , H01M8/086
摘要： A fuel cell assembly (20) has a plurality of characteristics that extend the useful life of the assembly. In one example, flow field layers are non-porous and hydrophobic such that they have an acid absorption rate of less than about 0.10 mg/khr-cm2. An electrolyte retaining matrix has a reaction rate with phosphoric acid of less than about 0.010 mg/khr-cm2. Hydrophilic substrates associated with catalyst layers have an initial transferable phosphoric acid content of less than about 25 mg/cm2. A condensation zone provides an evaporative phosphoric acid loss rate that is less than about 0.17 mg/khr-cm2.
摘要翻译： 燃料电池组件（20）具有延长组件的使用寿命的多种特性。 在一个实例中，流场层是无孔和疏水的，使得它们具有小于约0.10mg / khr-cm 2的酸吸收速率。 电解质保留基质具有小于约0.010mg / khr-cm 2的磷酸的反应速率。 与催化剂层相关的亲水性底物具有小于约25mg / cm 2的初始可转移磷酸含量。 冷凝区提供小于约0.17mg / khr-cm 2的蒸发磷酸损失率。
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公开(公告)号：US5837395A
公开(公告)日：1998-11-17
申请号：US576606
申请日：1995-12-21
CPC分类号： H01M8/0271 , H01M4/8626 , H01M2300/0008 , H01M8/0273
摘要： The present invention discloses a corrosion resistant fuel cell in which an ion impermeable protective layer is positioned over at least a portion of the noncatalyzed carbon based components. This layer prevents reactant ions or molecules form reaching localized high potential areas of these components and corroding the carbon material.
摘要翻译： 本发明公开了一种耐腐蚀燃料电池，其中离子不可渗透的保护层位于非催化的碳基组分的至少一部分上。 该层防止反应物离子或分子形成到这些组分的局部高电位区域并腐蚀碳材料。
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公开(公告)号：US07763390B2
公开(公告)日：2010-07-27
申请号：US12615313
申请日：2009-11-10
IPC分类号： H01M8/02
CPC分类号： H01M8/04119 , H01M4/86 , H01M8/0213 , H01M8/0226 , H01M8/0258 , H01M8/0267 , H01M8/0297 , H01M8/04283 , H01M8/086
摘要： An example fuel cell assembly includes a separator plate. Non-porous and hydrophobic flow field layers are associated with the separator plate. An electrolyte retaining matrix comprises silicon carbide powder and has a mean particle size of about 3 microns and a thickness of about 0.05 mm Hydrophilic substrates are associated with catalyst layers. The hydrophilic substrates are about 70% porous and have a void volume that is about 40% filled with transferable phosphoric acid in an initial condition. A condensation zone cools a vapor passing from the assembly to less than about 140° C.
摘要翻译： 示例性燃料电池组件包括隔板。 无孔和疏水流场层与隔板相关联。 电解质保留基质包括碳化硅粉末并且具有约3微米的平均粒度和约0.05mm的厚度亲水基底与催化剂层相关联。 亲水底物是多孔的约70％，并且在初始条件下具有约40％的可转移磷酸填充的空隙体积。 冷凝区将从组件通过的蒸汽冷却至小于约140℃
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公开(公告)号：US20100055541A1
公开(公告)日：2010-03-04
申请号：US12615313
申请日：2009-11-10
IPC分类号： H01M2/02
CPC分类号： H01M8/04119 , H01M4/86 , H01M8/0213 , H01M8/0226 , H01M8/0258 , H01M8/0267 , H01M8/0297 , H01M8/04283 , H01M8/086
摘要： An example fuel cell assembly includes a separator plate. Non-porous and hydrophobic flow field layers are associated with the separator plate. An electrolyte retaining matrix comprises silicon carbide powder and has a mean particle size of about 3 microns and a thickness of about 0.05 mm Hydrophilic substrates are associated with catalyst layers. The hydrophilic substrates are about 70% porous and have a void volume that is about 40% filled with transferable phosphoric acid in an initial condition. A condensation zone cools a vapor passing from the assembly to less than about 140° C.
摘要翻译： 示例性燃料电池组件包括隔板。 无孔和疏水流场层与隔板相关联。 电解质保留基质包括碳化硅粉末并且具有约3微米的平均粒度和约0.05mm的厚度亲水基底与催化剂层相关联。 亲水底物是多孔的约70％，并且在初始条件下具有约40％的可转移磷酸填充的空隙体积。 冷凝区将从组件通过的蒸汽冷却至小于约140℃
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公开(公告)号：US07678478B2
公开(公告)日：2010-03-16
申请号：US11718335
申请日：2004-12-29
CPC分类号： H01M8/04119 , H01M4/86 , H01M8/0213 , H01M8/0226 , H01M8/0258 , H01M8/0267 , H01M8/0297 , H01M8/04283 , H01M8/086
摘要： A fuel cell assembly (20) has a plurality of characteristics that extend the useful life of the assembly. In one example, flow field layers are non-porous and hydrophobic such that they have an acid absorption rate of less than about 0.10 mg/khr-cm2. An electrolyte retaining matrix has a reaction rate with phosphoric acid of less than about 0.010 mg/khr-cm2. Hydrophilic substrates associated with catalyst layers have an initial transferable phosphoric acid content of less than about 25 mg/cm2. A condensation zone provides an evaporative phosphoric acid loss rate that is less than about 0.17 mg/khr-cm2.
摘要翻译： 燃料电池组件（20）具有延长组件的使用寿命的多种特性。 在一个实例中，流场层是非多孔和疏水的，使得它们具有小于约0.10mg / khr-cm 2的酸吸收速率。 电解质保留基质与磷酸的反应速率小于约0.010mg / khr-cm 2。 与催化剂层相关的亲水基底具有小于约25mg / cm 2的初始可转移磷酸含量。 冷凝区提供小于约0.17mg / khr-cm 2的蒸发磷酸损失率。
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公开(公告)号：US5792572A
公开(公告)日：1998-08-11
申请号：US656569
申请日：1996-05-31
申请人： Peter F. Foley , Francis J. Luczak , John L. Preston, Jr. , Christopher R. Teeling , Richard D. Breault , Robert R. Fredley , Glenn W. Scheffler
发明人： Peter F. Foley , Francis J. Luczak , John L. Preston, Jr. , Christopher R. Teeling , Richard D. Breault , Robert R. Fredley , Glenn W. Scheffler
CPC分类号： B01D53/58 , H01M8/0662 , H01M2300/0008 , H01M8/04014 , H01M8/0612
摘要： Ammonia which is found in fuel cell fuel gases is removed therefrom by passing the fuel gas stream through a scrubber bed of porous carbon pellets containing phosphoric acid. The ammonia reacts with the phosphoric acid in the scrubber bed to form ammonium phosphate compounds which remain in the scrubber bed. The ammonia content of the fuel gas stream is thus lowered to a concentration of about one ppm or less. By maintaining the temperature of the fuel gas stream passing through the scrubber bed in a range of about 400.degree. F. to about 450.degree. F. sufficient phosphoric acid will also be evaporated from the scrubber bed to replace acid electrolyte lost during operation of the power plant. Adjustments in the temperature of the fuel gas flowing through the scrubber may be made in order to match electrolyte losses which occur during different operating phases of the power plant. The scrubber formed in accordance with this invention thus serves two functions, one being to remove ammonia from the fuel gas stream, and the other being to replenish electrolyte lost in the power plant during normal operation thereof.
摘要翻译： 在燃料电池燃料气体中发现的氨通过使燃料气流通过含有磷酸的多孔碳粒料的洗涤床而被除去。 氨与洗涤床中的磷酸反应形成残留在洗涤床中的磷酸铵化合物。 因此，燃料气流的氨含量降低至约1ppm或更低的浓度。 通过将通过洗涤器床的燃料气体流的温度保持在约400°F至约450°F的范围内。足够的磷酸也将从洗涤床中蒸发以代替在功率运行期间损失的酸性电解质 厂。 可以对流过洗涤器的燃料气体的温度进行调节，以便匹配在发电厂的不同运行阶段期间发生的电解质损失。 因此，根据本发明形成的洗涤器具有两个功能，一个是从燃料气流中除去氨，另一个是在正常操作期间补充在发电厂中损失的电解质。
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8.发明授权Liquid electrolyte fuel cell having an anode substrate layer thicker than the cathode substrate layer 有权液体电解质燃料电池具有比阴极衬底层厚的阳极衬底层公开(公告)号：US08137857B2
公开(公告)日：2012-03-20
申请号：US12311592
申请日：2006-10-27
申请人： Richard D. Breault
发明人： Richard D. Breault
IPC分类号： H01M2/02
CPC分类号： H01M8/086 , H01M8/023 , H01M8/04067 , H01M8/04283
摘要： A fuel cell (8a) having a matrix (11) for containing phosphoric acid (or other liquid) electrolyte with an anode catalyst (12) on one side and a cathode catalyst (13) on the other side includes an anode substrate (16a) in contact with the anode catalyst and a cathode substrate (17a) in contact with the cathode catalyst, the anode substrate being thicker than the cathode substrate by a ratio of between 1.75 to 1.0 and 3.0 to 1.0. Non-porous, hydrophobic separator plate assemblies (19) provide fuel flow channels (20) and oxidant flow channels (21) as well as demarcating the fuel cells.
摘要翻译： 具有用于在一侧含有阳极催化剂（12）的磷酸（或其他液体）电解质的基体（11）和另一侧的阴极催化剂（13）的燃料电池（8a）包括阳极基板（16a） 与阴极催化剂接触的阳极催化剂和与阴极催化剂接触的阴极基板（17a），阳极基板比阴极基板厚1.75〜1.0和3.0〜1.0。 无孔疏水分离器板组件（19）提供燃料流动通道（20）和氧化剂流动通道（21）以及分界燃料电池。
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公开(公告)号：US20100230031A1
公开(公告)日：2010-09-16
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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公开(公告)号：US07063907B2
公开(公告)日：2006-06-20
申请号：US10612688
申请日：2003-07-02
申请人： Richard D. Breault
发明人： Richard D. Breault
IPC分类号： H01M8/04
CPC分类号： H01M8/04029 , H01M8/04134 , H01M8/04156
摘要： The invention includes an anode fuel flow field (100) adjacent a fuel cell (12) electrolyte (18) that defines a fuel path (102) between a fuel inlet (108) and a fuel outlet (110) and includes a cooler plate (118) in heat exchange relationship with the anode fuel flow field (100) that defines a coolant path (120) between a coolant inlet (126) and a coolant outlet (128). The fuel path (102) has a width (132) that is about the same as a width (134) of the coolant path (120) where the fuel path (102) and the coolant path (120) are closest to each other, and the fuel path (102) substantially overlies the coolant path (120) to minimize evaporation of water from water management flow fields (20) (22) and/or the electrolyte (18) into the fuel within the fuel path (102).
摘要翻译： 本发明包括邻近燃料电池（12）电解质（18）的阳极燃料流场（100），其限定燃料入口（108）和燃料出口（110）之间的燃料路径（102），并包括冷却器板 118）与限定冷却剂入口（126）和冷却剂出口（128）之间的冷却剂路径（120）的阳极燃料流场（100）的热交换关系。 燃料路径（102）具有与燃料路径（102）和冷却剂路径（120）彼此最接近的冷却剂路径（120）的宽度（134）大致相同的宽度（132） 并且燃料路径（102）基本上覆盖在冷却剂路径（120）上，以使来自水管理流场（20）（22）和/或电解质（18）的水的蒸发最小化到燃料路径（102）内的燃料中。
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