Design strategies for corrosion mitigation
    2.
    发明申请
    Design strategies for corrosion mitigation 审中-公开
    减缓腐蚀设计策略

    公开(公告)号:US20070059580A1

    公开(公告)日:2007-03-15

    申请号:US11227771

    申请日:2005-09-15

    IPC分类号: H01M2/08 H01M4/94 H01M8/02

    摘要: Fuel cells are provided that are at least partially resistant to corrosion, including the use of components that are comprised of materials that are at least partially resistant to corrosion. The fuel cells include subgasket materials and designs, involving geometric arrangements of the subgasket that reduce oxygen permeation from, the cathode to the anode side of the membranes and/or hydrogen permeation from the anode to the cathode side of the membranes. In addition to using protonically non-conductive subgasket materials with lower oxygen and/or hydrogen permeabilities, versus ionomeric subgaskets which are protonically conducting and have high O2 permeation rates, the elimination of the microporous layer (e.g., coated onto the diffusion medium) directly beneath the permeable subgasket materials will also reduce production of corrosive species. The elimination of direct contact between the bipolar plate material surface and PFSA ionomer membrane material also prevents corrosion to the metal bipolar plates.

    摘要翻译: 提供至少部分抵抗腐蚀的燃料电池,包括使用由至少部分抵抗腐蚀的材料组成的部件。 燃料电池包括子衬垫材料和设计,其包括减小从膜的阴极到阳极侧的氧渗透和/或从膜的阳极到阴极侧的氢渗透的子衬垫的几何布置。 除了使用具有较低氧和/或氢渗透性的质子非导电子衬垫材料之外,对于质子导电并具有高O 2渗透速率的离聚物亚垫,除了微孔层(例如, 直接在可渗透的垫片材料下方涂覆到扩散介质上)也将减少腐蚀物质的产生。 消除双极板材料表面和PFSA离聚物膜材料之间的直接接触也可防止对金属双极板的腐蚀。

    Stainless steel alloy and bipolar plates
    5.
    发明申请
    Stainless steel alloy and bipolar plates 审中-公开
    不锈钢合金和双极板

    公开(公告)号:US20060008694A1

    公开(公告)日:2006-01-12

    申请号:US11165425

    申请日:2005-06-23

    IPC分类号: H01M8/02 C22C30/02 C22C30/00

    摘要: An improved bipolar plate stainless steel alloy comprises, in weight percent, about 20% to about 30% chromium, about 10% to about 25% nickel, about 1% to about 9 % molybdenum, and up to about 4% copper, where the weight percentage of chromium plus nickel plus molybdenum is greater than about 51 percent. The weight percentage of chromium plus molybdenum may be greater than about 1.66 times the weight percentage of nickel. In addition, the ratio of chromium equivalents to nickel equivalents may be greater than about 1.66.

    摘要翻译: 改进的双极板不锈钢合金以重量百分比计包含约20%至约30%的铬,约10%至约25%的镍,约1%至约9%的钼和至多约4%的铜,其中 铬加镍加钼的重量百分比大于约51%。 铬加钼的重量百分比可以大于镍的重量百分比的约1.66倍。 此外,铬当量与镍当量的比可以大于约1.66。

    Durable hydrophilic coatings for fuel cell bipolar plates
    6.
    发明申请
    Durable hydrophilic coatings for fuel cell bipolar plates 审中-公开
    用于燃料电池双极板的耐用亲水涂层

    公开(公告)号:US20060216570A1

    公开(公告)日:2006-09-28

    申请号:US11089525

    申请日:2005-03-24

    IPC分类号: H01M8/02 H01M8/08 B05D5/12

    摘要: A flow field plate for a fuel cell that includes an outer layer of a metal oxide or other material that makes the plate hydrophilic. The particular metal oxide and the thickness of the metal oxide layer are selected so that hydrofluoric acid generated by the fuel cell continuously etches away the layer at a predetermined rate so that a surface of the layer is free of contaminants over the entire life of the fuel cell. If the fuel cell does not employ a perfluorosulfonic acid membrane, then a separate hydrofluoric acid source can be provided that injects a low level solution of hydrofluoric acid into one or both of the reactant gas streams.

    摘要翻译: 一种用于燃料电池的流场板,其包括使板成为亲水性的金属氧化物或其它材料的外层。 选择特定的金属氧化物和金属氧化物层的厚度,使得由燃料电池产生的氢氟酸以预定的速率连续地蚀刻掉层,使得该层的表面在燃料的整个寿命期间都不含污染物 细胞。 如果燃料电池不使用全氟磺酸膜,则可以提供单独的氢氟酸源,其将低水平的氢氟酸溶液注入反应物气流中的一种或两种。

    Magnetic filtration apparatus
    8.
    发明授权
    Magnetic filtration apparatus 有权
    磁性过滤装置

    公开(公告)号:US08834721B2

    公开(公告)日:2014-09-16

    申请号:US13059117

    申请日:2011-01-10

    IPC分类号: B03C1/033 B03C1/28

    摘要: A magnetic filtration apparatus to separate ferrous contaminant material from a working fluid. The separation apparatus has a housing that is divided into a plurality of filtration chambers, each chamber having an elongate magnetic core to generate a magnetic field to entrap the contaminant material as it flows through the filter body. A fluid communication passageway is provided between the first and second chambers and is positioned such that the fluid exposure to the magnetic fields is maximized.

    摘要翻译: 一种磁性过滤装置,用于将亚铁污染物质与工作流体分离。 分离装置具有被分成多个过滤室的壳体,每个室具有细长的磁芯,以产生磁场,以在污染物质流过过滤器体时截留污染物质。 流体连通通道设置在第一和第二室之间,并且被定位成使得暴露于磁场的流体最大化。

    MAGNETIC FILTRATION APPARATUS
    9.
    发明申请
    MAGNETIC FILTRATION APPARATUS 有权
    磁力过滤装置

    公开(公告)号:US20120175312A1

    公开(公告)日:2012-07-12

    申请号:US13059117

    申请日:2011-01-10

    IPC分类号: C02F1/48

    摘要: A magnetic filtration apparatus to separate ferrous contaminant material from a working fluid. The separation apparatus has a housing that is divided into a plurality of filtration chambers, each chamber having an elongate magnetic core to generate a magnetic field to entrap the contaminant material as it flows through the filter body. A fluid communication passageway is provided between the first and second chambers and is positioned such that the fluid exposure to the magnetic fields is maximised.

    摘要翻译: 一种磁性过滤装置,用于将亚铁污染物质与工作流体分离。 分离装置具有被分成多个过滤室的壳体,每个室具有细长的磁芯,以产生磁场,以在污染物质流过过滤器体时截留污染物质。 流体连通通道设置在第一和第二室之间,并且被定位成使得暴露于磁场的流体最大化。

    Magnetic filter
    10.
    发明授权
    Magnetic filter 有权
    磁性过滤器

    公开(公告)号:US07604748B2

    公开(公告)日:2009-10-20

    申请号:US11254952

    申请日:2005-10-20

    IPC分类号: C02F1/48

    摘要: A magnetic filter device capable of separating contaminant material from a working fluid. The device includes an inlet to allow fluid to flow into the device and an outlet to allow fluid to flow out of the device. The filter further includes an elongate magnetic core comprising at least four columns of magnets. At least two magnetic columns include a north polarity extending over the length of the columns and at least two columns have a south polarity extending substantially the length of the columns. The four columns are positioned lengthways around a central longitudinal axis of the core in alternating north and south polarity thereby generating a magnetic field of alternating high and low field intensity in the region around the magnetic core exterior.

    摘要翻译: 一种能够将污染物质与工作流体分离的磁性过滤装置。 该装置包括允许流体流入装置的入口和允许流体流出装置的出口。 滤波器还包括包括至少四列磁体的细长磁芯。 至少两个磁柱包括在柱的长度上延伸的北极性,并且至少两列具有基本上延伸的柱的长度的南极性。 四个柱以交替的南北极性绕芯的中心纵向轴线纵向定位,从而在磁芯外部周围的区域中产生交替的高和低场强的磁场。