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公开(公告)号：US20140302423A1
公开(公告)日：2014-10-09
申请号：US14364685
申请日：2011-12-20
CPC分类号： H01M8/04186 , H01M4/8605 , H01M4/861 , H01M4/96 , H01M8/188 , H01M8/20 , Y02E60/528
摘要： A flow battery includes a liquid electrolyte having an electrochemically active specie. A flow field plate includes a first flow field channel and a second flow field channel that is separated from the first flow field channel by a rib. There is a flow path for the liquid electrolyte to flow over the rib between the channels. An electrode is arranged adjacent the flow field plate such that the liquid electrolyte that flows over the rib must flow through the electrode. The electrode includes a carbon paper that is catalytically active with regard to liquid electrolyte. The carbon paper defines a compressive strain of less than 20% at a compressive stress of 0.8 MPa and an uncompressed porosity in the range 60-85%.
摘要翻译： 流动电池包括具有电化学活性物质的液体电解质。 流场板包括第一流场通道和通过肋与第一流场通道分离的第二流场通道。 液体电解质在通道之间的肋上流过流动路径。 电极被布置在流场板附近，使得流过肋的液体电解液必须流过电极。 电极包括关于液体电解质具有催化活性的碳纸。 碳纸在0.8MPa的压缩应力和60-85％的未压缩孔隙率下限定了小于20％的压缩应变。
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公开(公告)号：US20140356757A1
公开(公告)日：2014-12-04
申请号：US14373299
申请日：2012-01-20
申请人： Lesia V. Protsailo , Laura Roen Stolar , Jesse M. Marzullo , Mallika Gummalla , Sergei F. Burlatsky
发明人： Lesia V. Protsailo , Laura Roen Stolar , Jesse M. Marzullo , Mallika Gummalla , Sergei F. Burlatsky
IPC分类号： H01M8/10
CPC分类号： H01M8/1004 , H01M4/8636 , H01M4/8642 , H01M4/8652 , H01M4/8657 , H01M4/8807 , H01M4/881 , H01M4/886 , H01M4/9083 , H01M4/926 , H01M2008/1095
摘要： An example of a stable electrode structure is to use a gradient electrode that employs large platinum particle catalyst in the close proximity to the membrane supported on conventional carbon and small platinum particles in the section of the electrode closer to a GDL supported on a stabilized carbon. Some electrode parameters that contribute to electrode performance stability and reduced change in ECA are platinum-to-carbon ratio, size of platinum particles in various parts of the electrode, use of other stable catalysts instead of large particle size platinum (alloy, etc), depth of each gradient sublayer. Another example of a stable electrode structure is to use a mixture of platinum particle sizes on a carbon support, such as using platinum particles that may be 6 nanometers and 3 nanometers. A conductive support is typically one or more of the carbon blacks.
摘要翻译： 稳定的电极结构的一个例子是使用梯度电极，该梯度电极在靠近常规碳上负载的膜和较小的铂颗粒附近使用较大的铂颗粒催化剂，该电极更靠近负载在稳定的碳上的GDL。 有助于电极性能稳定性和ECA变化的一些电极参数是铂 - 碳比，电极各部分中铂颗粒的大小，使用其它稳定的催化剂代替大粒径的铂（合金等）， 每个梯度子层的深度。 稳定的电极结构的另一实例是使用铂载体上的铂粒子的混合物，例如使用可能为6纳米和3纳米的铂颗粒。 导电载体通常是一种或多种炭黑。
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公开(公告)号：US20130330657A1
公开(公告)日：2013-12-12
申请号：US14000922
申请日：2011-03-11
IPC分类号： H01M4/86
CPC分类号： H01M4/8657 , H01M4/8605 , H01M4/8668 , H01M4/92 , H01M8/1004
摘要： A catalyst layer for use in a fuel cell includes catalytic nanoparticles and a perfluorosulfonic acid (PFSA) ionomer. The catalytic nanoparticles have a palladium or palladium alloy core and an atomically thin layer of platinum on an outer surface of the palladium or palladium alloy core. The PFSA ionomer has an equivalent weight equal to or greater than about 830. A unitized electrode assembly is also described.
摘要翻译： 用于燃料电池的催化剂层包括催化纳米颗粒和全氟磺酸（PFSA）离聚物。 催化纳米颗粒在钯或钯合金芯的外表面上具有钯或钯合金芯和原子薄的铂层。 PFSA离聚物具有等于或大于约830的等效重量。还描述了组合电极组件。
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公开(公告)号：US20130216933A1
公开(公告)日：2013-08-22
申请号：US13261621
申请日：2010-09-20
IPC分类号： H01M8/02
CPC分类号： H01M8/0282 , H01M8/0284 , H01M8/1004 , H01M8/1023 , H01M8/1039 , Y02E60/521
摘要： A unitized electrode assembly (10; 110; 210; 310; 410) for a fuel cell includes, in addition to an anode catalyst layer (54; 254) and a cathode catalyst layer (56; 256), a polymer electrolyte membrane (52) having an acid functional group normally including H+ ions and an edge seal (66; 166; 266, 366, 466) containing alkali metal ions in a form, concentration, and/or location for delivery and dispersion into the membrane. The edge seal of the unitized electrode assembly is proximate, and typically contacts, the peripheral edge region (68) of the membrane in ion-transfer relation therewith, and alkali metal ions leach into the membrane during fuel cell operation to provide a desired ion exchange in the membrane. The alkali metal ions contained by the edge seal may be Li+, Na+, K+, Rb+, and/or Cs+, and may be included as a dopant with the material of the edge seal during its formation, or may be included as a discrete component of the edge seal, as by an ion-doped strip of membrane material contained by the edge seal. The edge seal thus serves as a “reservoir” of the alkali metal ions for release to the polymer electrolyte membrane for increased durability.
摘要翻译： 用于燃料电池的组合电极组件（10; 110; 210; 310; 410）除了阳极催化剂层（54; 254）和阴极催化剂层（56; 256）之外还包括聚合物电解质膜 ）具有通常包括H +离子的酸官能团和具有用于递送和分散到膜中的形式，浓度和/或位置的碱金属离子的边缘密封（66; 166; 266,366,466）。 单位化电极组件的边缘密封件与离子传递关系的膜的周边边缘区域（68）接近且典型地接触，并且在燃料电池操作期间碱金属离子浸入膜中以提供期望的离子交换 在膜中。 由边缘密封所包含的碱金属离子可以是Li +，Na +，K +，Rb +和/或Cs +，并且可以在其形成期间作为边缘密封材料作为掺杂物包括在内，或者可以包括作为离散组分 的边缘密封，如通过边缘密封所包含的膜材料的离子掺杂条带。 因此，边缘密封件用作碱金属离子的“储存器”，用于释放到聚合物电解质膜以增加耐久性。
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公开(公告)号：US09761899B2
公开(公告)日：2017-09-12
申请号：US14373299
申请日：2012-01-20
申请人： Lesia V. Protsailo , Laura Roen Stolar , Jesse M. Marzullo , Mallika Gummalla , Sergei F. Burlatsky
发明人： Lesia V. Protsailo , Laura Roen Stolar , Jesse M. Marzullo , Mallika Gummalla , Sergei F. Burlatsky
IPC分类号： H01M8/04 , H01M8/1004 , H01M4/86 , H01M4/90 , H01M4/92 , H01M4/88 , H01M8/1018
CPC分类号： H01M8/1004 , H01M4/8636 , H01M4/8642 , H01M4/8652 , H01M4/8657 , H01M4/8807 , H01M4/881 , H01M4/886 , H01M4/9083 , H01M4/926 , H01M2008/1095
摘要： An example of a stable electrode structure is to use a gradient electrode that employs large platinum particle catalyst in the close proximity to the membrane supported on conventional carbon and small platinum particles in the section of the electrode closer to a GDL supported on a stabilized carbon. Some electrode parameters that contribute to electrode performance stability and reduced change in ECA are platinum-to-carbon ratio, size of platinum particles in various parts of the electrode, use of other stable catalysts instead of large particle size platinum (alloy, etc), depth of each gradient sublayer. Another example of a stable electrode structure is to use a mixture of platinum particle sizes on a carbon support, such as using platinum particles that may be 6 nanometers and 3 nanometers. A conductive support is typically one or more of the carbon blacks.
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公开(公告)号：US09755245B2
公开(公告)日：2017-09-05
申请号：US14113223
申请日：2011-04-25
IPC分类号： H01M4/90 , H01M8/1018 , B01J21/18 , B01J23/42 , B01J37/02 , B01J37/16 , H01M4/88 , H01M8/1007 , H01M4/92
CPC分类号： H01M4/9075 , B01J21/18 , B01J23/42 , B01J37/024 , B01J37/0242 , B01J37/16 , H01M4/8817 , H01M4/885 , H01M4/926 , H01M8/1007 , H01M2008/1095
摘要： A method of forming a catalyst material includes coating agglomerates of catalyst support particles with an ionomer material. After coating the agglomerates of catalyst support particles, a catalyst metal precursor is deposited by chemical infiltration onto peripheral surfaces of the agglomerates of catalyst support particles. The catalyst metal precursor is then chemically reduced to form catalyst metal on the peripheral surfaces of the agglomerates of catalyst support particles.
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7.发明授权公开(公告)号：US09281529B2
公开(公告)日：2016-03-08
申请号：US13261621
申请日：2010-09-20
CPC分类号： H01M8/0282 , H01M8/0284 , H01M8/1004 , H01M8/1023 , H01M8/1039 , Y02E60/521
摘要： A unitized electrode assembly (10; 110; 210; 310; 410) for a fuel cell includes, in addition to an anode catalyst layer (54; 254) and a cathode catalyst layer (56; 256), a polymer electrolyte membrane (52) having an acid functional group normally including H+ ions and an edge seal (66; 166; 266, 366, 466) containing alkali metal ions in a form, concentration, and/or location for delivery and dispersion into the membrane. The edge seal of the unitized electrode assembly is proximate, and typically contacts, the peripheral edge region (68) of the membrane in ion-transfer relation therewith, and alkali metal ions leach into the membrane during fuel cell operation to provide a desired ion exchange in the membrane. The alkali metal ions contained by the edge seal may be Li+, Na+, K+, Rb+, and/or Cs+, and may be included as a dopant with the material of the edge seal during its formation, or may be included as a discrete component of the edge seal, as by an ion-doped strip of membrane material contained by the edge seal. The edge seal thus serves as a “reservoir” of the alkali metal ions for release to the polymer electrolyte membrane for increased durability.
摘要翻译： 用于燃料电池的组合电极组件（10; 110; 210; 310; 410）除了阳极催化剂层（54; 254）和阴极催化剂层（56; 256）之外还包括聚合物电解质膜 ）具有通常包括H +离子的酸官能团和具有用于递送和分散到膜中的形式，浓度和/或位置的碱金属离子的边缘密封（66; 166; 266,366,466）。 单位化电极组件的边缘密封件与离子传递关系的膜的周边边缘区域（68）接近且典型地接触，并且在燃料电池操作期间碱金属离子浸入膜中以提供期望的离子交换 在膜中。 由边缘密封所包含的碱金属离子可以是Li +，Na +，K +，Rb +和/或Cs +，并且可以在其形成期间作为边缘密封材料作为掺杂物包括在内，或者可以包括作为离散组分 的边缘密封，如通过边缘密封所包含的膜材料的离子掺杂条带。 因此，边缘密封件用作碱金属离子的“储存器”，用于释放到聚合物电解质膜以增加耐久性。
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公开(公告)号：US20140051008A1
公开(公告)日：2014-02-20
申请号：US14113223
申请日：2011-04-25
IPC分类号： H01M4/90
CPC分类号： H01M4/9075 , B01J21/18 , B01J23/42 , B01J37/024 , B01J37/0242 , B01J37/16 , H01M4/8817 , H01M4/885 , H01M4/926 , H01M8/1007 , H01M2008/1095
摘要： A method of forming a catalyst material includes coating agglomerates of catalyst support particles with an ionomer material. After coating the agglomerates of catalyst support particles, a catalyst metal precursor is deposited by chemical infiltration onto peripheral surfaces of the agglomerates of catalyst support particles. The catalyst metal precursor is then chemically reduced to form catalyst metal on the peripheral surfaces of the agglomerates of catalyst support particles.
摘要翻译： 形成催化剂材料的方法包括用离聚物材料涂覆催化剂载体颗粒的附聚物。 在涂覆催化剂载体颗粒的附聚物之后，通过化学渗透将催化剂金属前体沉积在催化剂载体颗粒的附聚物的外围表面上。 然后催化剂金属前体被化学还原以在催化剂载体颗粒的附聚物的外围表面上形成催化剂金属。
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