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    • 3. 发明申请
    • PROTECTIVE EDGE SEAL FOR MEMBRANE ION EXCHANGE
    • 膜离子交换膜的保护边缘密封
    • US20130216933A1
    • 2013-08-22
    • US13261621
    • 2010-09-20
    • Jesse M. MarzulloLaura Roen Stolar
    • Jesse M. MarzulloLaura Roen Stolar
    • H01M8/02
    • H01M8/0282H01M8/0284H01M8/1004H01M8/1023H01M8/1039Y02E60/521
    • 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.
    • 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。
    • 9. 发明授权
    • Protective edge seal having alkali metal ions for membrane ion exchange
    • 具有用于膜离子交换的碱金属离子的保护性边缘密封
    • US09281529B2
    • 2016-03-08
    • US13261621
    • 2010-09-20
    • Jesse M. MarzulloLaura Roen Stolar
    • Jesse M. MarzulloLaura Roen Stolar
    • H01M2/08H01M8/02H01M8/10
    • H01M8/0282H01M8/0284H01M8/1004H01M8/1023H01M8/1039Y02E60/521
    • 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.
    • 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。