Method of manufacturing a laminated fuel cell component with an internal
fluid impermeable barrier
    1.
    发明授权
    Method of manufacturing a laminated fuel cell component with an internal fluid impermeable barrier 失效
    制造具有内部不可渗透屏障的层叠燃料电池部件的方法

    公开(公告)号:US5328542A

    公开(公告)日:1994-07-12

    申请号:US813471

    申请日:1991-12-26

    IPC分类号: H01M8/02 C09J7/00

    摘要: A composite plate-shaped fuel cell component includes two electrically conductive porous plates juxtaposed and in area electrical contact with one another at an interface, and a sealant body accommodated in and completely filling the pores of a sealed region of each of the porous plates that extends to a predetermined distance from the interface into the respective porous plate to form a fluid impermeable barrier between the porous plates and to bond the porous plates to one another at the interface. The sealant body includes at least one layer of a fluoroelastomer sealant that fills all of the pores of at least one of the sealed regions.

    摘要翻译: 复合板状燃料电池部件包括两个导电性多孔板,两个导电性多孔板并列并且在界面处彼此面积地电接触;以及密封体,其容纳在每个多孔板的密封区域的孔中,并且完全填充延伸 从界面到相应的多孔板到预定距离,以在多孔板之间形成流体不可渗透的屏障并且在界面处将多孔板彼此粘合。 密封体包括填充至少一个密封区域的所有孔的至少一层含氟弹性体密封剂。

    Composite article
    2.
    发明授权
    Composite article 失效
    综合文章

    公开(公告)号:US06039823A

    公开(公告)日:2000-03-21

    申请号:US36950

    申请日:1998-03-09

    摘要: The graphitized composite article of the present invention is formed by embedding carbon fiber felt in a matrix of a carbon filler; a thermosetting resin and a solvent; curing the composite article; then, carbonizing and graphitizing the cured composite article to form the graphitized composite article for use as a separator plate capable of substantially inhibiting mixing of hydrogen and oxygen and/or the loss of electrolyte within a fuel cell stack. The graphitized composite article may be a graphitized laminate.

    摘要翻译: 本发明的石墨化复合制品通过将碳纤维毡嵌入碳填料的基体中而形成; 热固性树脂和溶剂; 固化复合制品; 然后将固化的复合制品碳化和石墨化以形成用作能够基本上抑制氢和氧的混合和/或燃料电池堆内的电解质损失的分离板的石墨化复合制品。 石墨化复合制品可以是石墨化层压板。

    PEM fuel cell passive water management
    5.
    发明授权
    PEM fuel cell passive water management 有权
    PEM燃料电池被动水管理

    公开(公告)号:US06916571B2

    公开(公告)日:2005-07-12

    申请号:US10465006

    申请日:2003-06-19

    摘要: Water flow field inlet manifolds (33, 37) are disposed at the fuel cell stack (11) base. Water flow field outlet manifolds (34, 38) are located at the fuel cell stack top. Outlet and inlet manifolds are interconnected (41-43, 47, 49, 50) so gas bubbles leaking through the porous water transport plate cause flow by natural convection, with no mechanical water pump. Variation in water level within a standpipe (58) controls (56, 60, 62, 63) the temperature or flow of coolant. In another embodiment, the water is not circulated, but gas and excess water are vented from the water outlet manifolds. Water channels (70) may be vertical. A hydrophobic region (80) provides gas leakage to ensure bubble pumping of water. An external heat exchanger (77) maximizes water density differential for convective flow.

    摘要翻译: 水流场入口歧管(33,37)设置在燃料电池堆(11)的基部。 水流场出口歧管(34,38)位于燃料电池堆顶部。 出口和入口歧管相互连接(41-43,47,49,50),因此通过多孔水输送板泄漏的气泡通过自然对流而流动,没有机械水泵。 立管(58)内的水位变化控制(56,60,62,63)冷却液的温度或流量。 在另一个实施方案中,水不循环,但是从出水歧管排出气体和多余的水。 水通道(70)可以是垂直的。 疏水区域(80)提供气体泄漏以确保泡沫泵送水。 外部热交换器(77)使对流流量的水密度差最大化。

    Use of thermoplastic films to create seals and bond PEM cell components
    6.
    发明授权
    Use of thermoplastic films to create seals and bond PEM cell components 有权
    使用热塑性薄膜制造密封和粘合PEM电池组件

    公开(公告)号:US6159628A

    公开(公告)日:2000-12-12

    申请号:US220472

    申请日:1998-12-23

    摘要: An improved membrane electrode assembly for PEM fuel cells is provided. Catalyst layers (40, 44) are disposed, respectively, on both sides of the proton exchange membrane (48). Gas diffusion layers (38, 50) are disposed, respectively, on sides of the catalyst layers (40, 44) not in contact with the proton exchange membrane (48). Porous substrates (32, 34) are disposed, respectively, on sides of the gas diffusion layers (38, 50) not in contact with the catalyst layers (40, 44). The porous substrates (32, 34) are impregnated at their periphery with a thermoplastic material. Thermoplastic film layers (42, 46, 68) are employed at the periphery of the assembly (10) between component parts to bond and seal water transport plates (12' and 16) to each other, as well as substrates (32, 32', 34) to the membrane electrode assembly (20). A foam tape 60, 62, 62' are employed to seal water transport plates (12, 12', 16) to respective substrates (32, 32', 34).

    摘要翻译: 提供了一种用于PEM燃料电池的改进的膜电极组件。 催化剂层(40,44)分别设置在质子交换膜(48)的两侧。 气体扩散层(38,50)分别设置在不与质子交换膜(48)接触的催化剂层(40,44)的侧面上。 多孔基材(32,34)分别设置在不与催化剂层(40,44)接触的气体扩散层(38,50)的侧面。 多孔基材(32,34)在其周围用热塑性材料浸渍。 热塑性薄膜层(42,46,68)在部件之间的组件(10)的周边被使用以将水输送板(12'和16)彼此粘合并密封,以及基板(32,32' ,34)连接到膜电极组件(20)。 使用泡沫胶带60,62,62'将水输送板(12,12',16)密封到相应的基板(32,32',34)上。

    Reactant pressure differential control for fuel cell gases
    8.
    发明授权
    Reactant pressure differential control for fuel cell gases 失效
    燃料电池气体的反应物压差控制

    公开(公告)号:US4509548A

    公开(公告)日:1985-04-09

    申请号:US646044

    申请日:1984-08-31

    申请人: Albert P. Grasso

    发明人: Albert P. Grasso

    IPC分类号: H01M8/04

    摘要: A pair of spool valves C and D connected in tandem are balanced between pressures of reactant gases supplied to a fuel cell power plant G to control the pressure differences between the gases so as to maintain those pressures substantially in the proportions necessary for operation of the fuel cell.

    摘要翻译: 串联连接的一对滑阀C和D在供应到燃料电池发电厂G的反应气体的压力之间平衡,以控制气体之间的压力差,以便将这些压力基本维持在燃料运行所需的比例 细胞。

    Fuel cell stack with an integral ejector for reactant gas recirculation
    9.
    发明授权
    Fuel cell stack with an integral ejector for reactant gas recirculation 失效
    具有集成喷射器的燃料电池堆,用于反应物气体再循环

    公开(公告)号:US3982961A

    公开(公告)日:1976-09-28

    申请号:US574128

    申请日:1975-05-02

    申请人: Albert P. Grasso

    发明人: Albert P. Grasso

    IPC分类号: H01M8/04 H01M8/24 H01M8/06

    摘要: A stack of fuel cells operating on gaseous reactants includes an ejector in integral heat exchange relationship with the stack for recirculating one of the reactant gases through the cells of the stack. The recirculating reactant is continuously heated by waste heat from the cells as it recirculates thereby preventing condensation of water from the recirculating reactant gas and thereby maintaining the dew point constant from the time the reactant gas leaves the cells until it is mixed with fresh reactant in the ejector. The fresh reactant gas is preheated prior to being introduced to the ejector so that there is no condensation throughout the entire loop. The recirculation rate relative to the amount of fresh reactant can be controlled to regulate the dew point at the entrance to the cells to best advantage. By this invention flooding of the electrodes or drying of the electrodes does not occur.

    摘要翻译: 在气态反应物上操作的一堆燃料电池包括与该堆叠器整体热交换关系的喷射器,用于将一个反应气体再循环通过堆叠室。 再循环反应物在再循环时由来自细胞的废热连续加热,从而防止水从再循环反应气体中冷凝,从而使反应物气体离开细胞时保持露点恒定,直到与新鲜反应物混合 喷射器 新鲜的反应物气体在被引入喷射器之前被预热,使得在整个回路中没有冷凝。 可以控制相对于新鲜反应物的量的再循环速率来调节细胞入口处的露点以获得最佳的优点。 通过本发明,不会发生电极的淹没或电极的干燥。

    Method and apparatus for humidification control of an energy recovery device in a fuel cell power plant
    10.
    发明授权
    Method and apparatus for humidification control of an energy recovery device in a fuel cell power plant 有权
    燃料电池发电厂能量回收装置的加湿控制方法和装置

    公开(公告)号:US07118820B2

    公开(公告)日:2006-10-10

    申请号:US10723502

    申请日:2003-11-26

    IPC分类号: H01M8/04

    摘要: An arrangement is provided in a fuel cell power plant (10) for dispensing (58 74, 60, 64) a liquid medium, such as water (66), into a process oxidant (air) stream (53) that flows through one gas channel (42) in an energy recovery device (ERD) (32). An exhaust gas stream (48) containing heat and moisture from the fuel cell (12) flows through another channel (44) in the ERD. An enthalpy exchange barrier (46) separates the one and the other gas channels, but allows mass and/or heat transfer therebetween. The water is injected into the air stream (53) in a controlled (70, 74) amount, and perhaps temperature (78), in response to sensed parameters (80, 84, 90) of the power plant, including the process air stream, to adjust one or more conditions in the power plant. Controlling ERD dryness, providing a defrost capability for the ERD, and/or preventing excessive water accumulation in the system are several of the conditions controlled.

    摘要翻译: 在燃料电池发电厂(10)中设置有用于将诸如水(66)的液体介质(58,74,64)分配到流过一种气体的工艺氧化剂(空气)流(53)中的装置 通道(42)在能量回收装置(ERD)(32)中。 含有来自燃料电池(12)的热和湿气的废气流(48)流过ERD中的另一通道(44)。 焓交换屏障(46)分离一个和另一个气体通道,但允许它们之间的质量和/或热传递。 响应于发电厂的感测参数(80,84,90),将水以受控(70,74)的量(或许是温度)(78)注入空气流(53),包括工艺气流 调整发电厂的一个或多个条件。 控制ERD干燥,为ERD提供除霜能力和/或防止系统中过多的水积聚是控制的几个条件。