MANUFACTURE OF A FUEL CELL WITH LIQUID ELECTROLYTE MIGRATION PREVENTION
    1.
    发明申请
    MANUFACTURE OF A FUEL CELL WITH LIQUID ELECTROLYTE MIGRATION PREVENTION 审中-公开
    具有液体电解质迁移预防的燃料电池的制造

    公开(公告)号:WO2010123478A1

    公开(公告)日:2010-10-28

    申请号:PCT/US2009/003648

    申请日:2009-06-18

    CPC classification number: H01M8/086 H01M8/0228 H01M8/0284 H01M8/0286 Y02P70/56

    Abstract: 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).

    Abstract translation: 燃料电池(11)的堆叠(10)制造有阻挡层(32),以防止液体电解质(例如磷酸)从电池(11)中迁移。 隔板(32)固定在形成在隔板组件(18)的平台区域(28)内的台阶(34)内,并从分隔板组件(18)的边缘(30)延伸,全部或一部分 所述边缘(30)和限定在所述分隔板组件(18)内的流动通道(24)之间的距离。 屏障(32)还从边缘(30)远离了0.051至约2.0毫米(约2和约80密耳)之间的距离。阻挡层(32)包括疏水性聚合物膜(36),压敏粘合剂 (38)作为组合助剂,和含氟弹性体粘合剂(40)。

    PREVENTING MIGRATION OF LIQUID ELECTROLYTE OUT OF A FUEL CELL
    2.
    发明申请
    PREVENTING MIGRATION OF LIQUID ELECTROLYTE OUT OF A FUEL CELL 审中-公开
    防止液体电解液从燃料电池中移出

    公开(公告)号:WO2010123479A1

    公开(公告)日:2010-10-28

    申请号:PCT/US2009/003658

    申请日:2009-06-18

    CPC classification number: H01M8/086 H01M8/0228 H01M8/0284 H01M8/0286 Y02P70/56

    Abstract: A stack (10) of fuel cells (11) is provided 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) defined 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 2.0 millimeters (2 and 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).

    Abstract translation: 燃料电池(11)的堆叠(10)设置有阻挡层(32),以防止液体电解质(例如磷酸)从电池(11)中迁移。 隔板(32)固定在限定在分隔板组件(18)的平台区域(28)内的台阶(34)内,并从分隔板组件(18)的边缘(30)延伸,全部或一部分 所述边缘(30)和限定在所述分隔板组件(18)内的流动通道(24)之间的距离。 阻挡层(32)也从边缘(30)延伸出0.051和2.0毫米(2和80密耳)之间的距离。 阻挡层(32)包括疏水性聚合物膜(36),作为组合助剂的压敏粘合剂(38)和含氟弹性体粘合剂(40)。

    ACID RESISTANT, MONOLITHIC FUEL CELL COOLER ASSEMBLY
    4.
    发明申请
    ACID RESISTANT, MONOLITHIC FUEL CELL COOLER ASSEMBLY 审中-公开
    耐燃料,单体燃料电池冷却器总成

    公开(公告)号:WO2013062503A1

    公开(公告)日:2013-05-02

    申请号:PCT/US2011/001806

    申请日:2011-10-25

    Abstract: A composite plate (26) is formed in a mold (8) by placing one of two preforms (15, 23) of between about 80 wt.% and about 85 wt.% flake graphite, balance polymer binder, into the mold and disposing a coolant tube array (18) thereon, depositing a powder (21) of the flake/polymer around the tube array, placing a second preform on the powder and a mold plunger (27) on the second preform, heating the mold to the melting temperature of the polymer under a pressure of 625 psi (4311 kPa), cooling the mold to the solidification temperature of the polymer while still under pressure, cooling the mold further, disassembling the mold, and removing the composite plate. The composite plate has reactant gas flow field channels (31, 32) in major surfaces thereof, is devoid of any acid edge protection layer or film and is devoid of any acid impervious separator plate between either of the fuel cell reactant gas flow fields and the coolant tube array.

    Abstract translation: 通过将两个预型件(15,23)中的一个放置在模具中并将大约80重量%至大约85重量%的片状石墨(平衡聚合物粘合剂)放置在模具中来形成复合板(26) 在其上沉积薄片/聚合物的粉末(21),围绕管阵列沉积第二预制件并在第二预型件上放置第二预型件和将模具加热至熔化 在625psi(4311kPa)的压力下聚合物的温度,在仍然处于压力下将模具冷却至聚合物的凝固温度,进一步冷却模具,拆卸模具,并除去复合板。 复合板在其主表面上具有反应气体流场通道(31,32),没有任何酸边缘保护层或膜,并且在燃料电池反应物气体流场和 冷却液管阵列。

    FUEL CELL SEPARATOR PLATE
    5.
    发明申请
    FUEL CELL SEPARATOR PLATE 审中-公开
    燃油电池分离器板

    公开(公告)号:WO2012023959A1

    公开(公告)日:2012-02-23

    申请号:PCT/US2011/000037

    申请日:2011-01-10

    CPC classification number: H01M8/0213 H01M8/0221 H01M8/0226 H01M8/0228

    Abstract: A fuel cell separator plate assembly (20, 20a) includes a separator layer (22, 22a) and one or more reactant flow field layers (24, 24a, 26, 26a) comprising graphite flakes and a thermoplastic, hydrophobic resin which secures flow field layers on opposite sides of the separator layer. In another example, a separator plate assembly (20a) comprises a monolithic structure in which the separator portion (22a) and the flow field portions (24a, 26a) are all formed in a single piece of the same material. A method heats thermoplastic resin to its point of complete melting, then cools to its point where melting begins, increasing both electric and thermal conductivity. Methods include bonding under higher pressure than previously used, about 800 psi, or under pressures about 750 psi.

    Abstract translation: 燃料电池分离器板组件(20,20a)包括隔离层(22,22a)和一个或多个包含石墨薄片和热塑性疏水性树脂的反应物流场层(24,24,26,26a),其确保流场 分层的相对侧上的层。 在另一示例中,分离板组件(20a)包括整体结构,其中分离器部分(22a)和流场部分(24a,26a)全部以同一材料形成。 一种方法将热塑性树脂加热至其完全熔化点,然后冷却至熔点开始点,增加电导率和导热性。 方法包括在比以前使用的更高的压力下粘合,约800psi,或在约750psi的压力下。

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