Fuel cell assembly having long life characteristics
    81.
    发明授权
    Fuel cell assembly having long life characteristics 有权
    具有长寿命特性的燃料电池组件

    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

    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℃

    FUEL CELL ASSEMBLY HAVING LONG LIFE CHARACTERISTICS
    82.
    发明申请
    FUEL CELL ASSEMBLY HAVING LONG LIFE CHARACTERISTICS 有权
    燃油电池组件具有长寿命特性

    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

    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℃

    AMMONIA CONTACT SCRUBBER SYSTEM FOR A FUEL CELL
    83.
    发明申请
    AMMONIA CONTACT SCRUBBER SYSTEM FOR A FUEL CELL 有权
    用于燃料电池的AMMONIA接触式SCRUBBER系统

    公开(公告)号:US20100024648A1

    公开(公告)日:2010-02-04

    申请号:US12448380

    申请日:2006-12-20

    IPC分类号: B01D53/14

    摘要: An ammonia contact scrubber system (10) for removing ammonia from a fuel stream for a fuel cell (16) includes a contact scrubber (12) having a scrubber fuel inlet (14) and a scrubber fuel exhaust (20) for directing flow of the fuel stream through support material (24) within the scrubber (12) and into the fuel cell (16). An acid circulating loop (26) has an acid holding tank (28) holding a liquid acid solution (30), an acid feed line (32) secured in fluid communication between the holding tank (28) and a scrubber acid inlet (36) of the contact scrubber (12), an acid return (38) for returning the acid solution from the scrubber (12) to the acid holding tank (28), and an acid circulation pump (42) for pumping the acid solution (30) through the acid circulating loop (26) and through the support material (24) within the scrubber (12).

    摘要翻译: 用于从用于燃料电池(16)的燃料流中去除氨的氨接触洗涤器系统(10)包括具有洗涤器燃料入口(14)和洗涤器燃料排出口(20)的接触洗涤器(12),用于引导 燃料流通过洗涤器(12)内的支撑材料(24)并进入燃料电池(16)。 酸性循环回路(26)具有保持液体酸性溶液(30)的酸性储存罐(28),在储存罐(28)和洗涤器酸入口(36)之间流体连通的酸性供给管线(32) 的接触洗涤器(12),用于将酸洗液从洗涤器(12)返回到酸储槽(28)的酸回流(38)和用于泵送酸溶液(30)的酸循环泵(42) 通过酸循环回路(26)并通过洗涤器(12)内的支撑材料(24)。

    Fuel cell temperature control by evaporative cooling
    84.
    发明授权
    Fuel cell temperature control by evaporative cooling 有权
    通过蒸发冷却控制燃料电池温度

    公开(公告)号:US07556874B2

    公开(公告)日:2009-07-07

    申请号:US10649244

    申请日:2003-08-27

    IPC分类号: H01M8/04 H01M8/06

    摘要: To evaporatively cool fuel cells, the pressure in steam carrying channels on one side of a hydrophobic porous liquid/vapor barrier layer disposed between adjacent fuel cells is reduced to below the vapor pressure of liquid water passing through liquid water carrying channels on the other side of the barrier layer, such as by using a vacuum pump. This causes some of the liquid water to boil and change to steam. The steam passes through the barrier layer into the steam channels and is carried out of the cells. The operating temperature of the fuel cell is adjusted by controlling the pressure within the steam channels, such as by controlling the amount of heat removed from the steam after it leaves the steam channels.

    摘要翻译: 为了蒸发冷却燃料电池,设置在相邻燃料电池之间的疏水性多孔液体/蒸汽阻挡层一侧的蒸汽输送通道中的压力降低到低于通过另一侧的液态水承载通道的液态水的蒸汽压力 阻挡层,例如通过使用真空泵。 这会导致一些液态水沸腾并变成蒸汽。 蒸汽通过阻挡层进入蒸汽通道并从电池中进行。 通过控制蒸汽通道内的压力来调节燃料电池的操作温度,例如通过控制离开蒸汽通道之后从蒸汽中除去的热量。

    Fuel cell with thermal conductance of cathode greater than anode
    85.
    发明授权
    Fuel cell with thermal conductance of cathode greater than anode 有权
    燃料电池的阳极电导率大于阴极

    公开(公告)号:US07429429B2

    公开(公告)日:2008-09-30

    申请号:US10859014

    申请日:2004-06-02

    IPC分类号: H01M4/00

    摘要: In a fuel cell for a fuel cell power plant having a PEM (9), a cathode comprising at least a catalyst (10) and a support substrate (17), possibly with a diffusion layer (16), on one side of the PEM, and an anode comprising at least an anode support substrate (14) and an anode catalyst (11) on the opposite side of the PEM, and a porous water transport plate having reactant gas flow field channels (31, 32) (21, 28) adjacent to each of said support substrates as well as water flow channels (22) in at least one of said water transport plates, the thermal conductance of the cathode is less than about one-half of the thermal conductance of the anode, and preferably less than one-quarter of the thermal conductance of the anode, to promote flow of water from the cathode to the anode and to the adjacent water transport plate, obviating the need, in some cases, for water or reactant pressure pumps.

    摘要翻译: 在具有PEM(9)的燃料电池发电厂的燃料电池中,至少包含催化剂(10)和支撑基板(17)的阴极,可能具有扩散层(16),在PEM的一侧 ,以及阳极,所述阳极至少包括位于所述PEM相反侧的阳极支撑基板(14)和阳极催化剂(11),以及具有反应气体流场通道(31,32)(21,28)的多孔水输送板 )和所述水输送板中的至少一个中的每个所述支撑基板以及水流通道(22)相邻,所述阴极的热导率小于所述阳极的热导率的约一半,优选地, 小于阴极热导率的四分之一,以促进水从阴极到阳极和相邻的水输送板的流动,从而避免了在某些情况下水或反应物压力泵的需要。

    Managing water and auxiliary power in fuel cell power plant below freezing temperatures
    86.
    发明授权
    Managing water and auxiliary power in fuel cell power plant below freezing temperatures 有权
    在燃料电池电厂低于冰点温度下管理水和辅助电力

    公开(公告)号:US07229711B2

    公开(公告)日:2007-06-12

    申请号:US10734835

    申请日:2003-12-12

    IPC分类号: H01M8/04

    摘要: A stack (11) of fuel cells have water flow channels receiving water through a pump (33) from an accumulator (29) having double walls (63, 66) with vacuum insulation panels (VIPs) (65, 68) therebetween, auxiliary DC power source (80) (battery or supercapacitor) is disposed in a container (43) having double walls (81, 86) with VIPs (65, 68) encapsulated therebetween. A keep-warm heater (51) keeps the source warm enough for at least half power capacity, the source driving its own heater as well as a keep-warm heater (50) in the accumulator to keep the accumulator above freezing. A microwave heater (58) disposed in the accumulator distributes energy to melt ice using fuel cell stack power upon startup.

    摘要翻译: 燃料电池堆(11)具有水流通道,其通过泵(33)从具有双壁(63,66)的蓄电池(29)接收水,其间具有真空绝热板(VIP)(65,68),辅助DC 电源(80)(电池或超级电容器)设置在具有封闭在其间的VIP(65,68)的双壁(81,86)的容器(43)中。 保温加热器(51)使得源足够保持至少一半的功率容量,源驱动其自己的加热器以及蓄热器中的保温加热器(50)以使蓄能器保持在冷冻状态。 设置在蓄能器中的微波加热器(58)在启动时使用燃料电池堆电力分配能量来熔化冰。

    Porous plate for an electrochemical cell and method for making the
porous plate
    89.
    发明授权
    Porous plate for an electrochemical cell and method for making the porous plate 失效
    用于电化学电池的多孔板和制造多孔板的方法

    公开(公告)号:US4652502A

    公开(公告)日:1987-03-24

    申请号:US814423

    申请日:1985-12-30

    IPC分类号: H01M2/08 H01M8/02

    摘要: A porous plate for an electrochemical cell, such as plates 22, 24 having a sealing material disposed in an edge region 41 of the plate is disclosed. Various construction details including a method for making the plate are disclosed which increase the cross pressure material the plate can withstand. In one embodiment, the seal region 41 is impregnated with powder having a low structure and predetermined particle size using a pressurized liquid carrier.

    摘要翻译: 公开了一种用于电化学电池的多孔板,例如具有设置在板的边缘区域41中的密封材料的板22,24。 公开了包括制造板的方法的各种构造细节,其增加了板可承受的交叉压力材料。 在一个实施例中,密封区域41使用加压液体载体浸渍具有低结构和预定粒度的粉末。