Methods for preventing anode oxidation in a fuel cell
    25.
    发明公开
    Methods for preventing anode oxidation in a fuel cell 审中-公开
    Brennstoffzellen的Verfahren zur Verhinderung der Oxod der Anoden

    公开(公告)号:EP1263071A3

    公开(公告)日:2005-04-27

    申请号:EP02076491.6

    申请日:2002-04-15

    Abstract: A method of preventing anode oxidation in a fuel cell (10) is disclosed comprising applying a negative current to an anode (30) of said fuel cell (10), such that the anode (30) is disposed in ionic communication with a cathode (50) through an electrolyte (40). Oxygen is transferred from the anode (30) through the electrolyte (40) to the cathode (50). A method preventing anode oxidation in a fuel cell (10) by storing and using a reformate and doping an anode (30) are also disclosed.

    Abstract translation: 公开了一种防止燃料电池中的阳极氧化的方法,包括向所述燃料电池的阳极施加负电流,使得阳极通过电解质与阴极离子连通地设置。 氧从阳极通过电解质转移到阴极。 还公开了通过储存和使用重整产物并掺杂阳极来防止燃料电池中的阳极氧化的方法。

    Compliant current collector for fuel cell anode and cathode
    26.
    发明公开
    Compliant current collector for fuel cell anode and cathode 有权
    Nachgiebiger StromabnehmerfürAnode和Kathode einer Brennstoffzelle

    公开(公告)号:EP1434294A1

    公开(公告)日:2004-06-30

    申请号:EP03078594.3

    申请日:2003-11-17

    CPC classification number: H01M8/0232 H01M8/2425 H01M8/248

    Abstract: An electrically-conductive mesh spacer (42) incorporated into the hydrogen and air gas flow spaces (22,24) between each anode (14) and cathode (16) and its adjacent interconnect (40) in a fuel cell stack (76). The mesh is formed of metal strands and is formed into a predetermined three-dimensional pattern to make contact at a plurality of points on the surfaces of the electrode (14,16) and the interconnect element (40). The formed mesh spacer (42) is secured as by brazing to the interconnect element at a plurality of locations to form an interconnect, which preserves the pattern during assembly of a fuel cell stack (76). The height (48') of the formed pattern is greater than the height of a gas flow space after fuel cell assembly, such that the mesh spacer is slightly compressed (48") during assembly of a fuel cell stack. Because the metal mesh is both compliant and resilient, the compressed spacer (48") is continuously urged into mechanical and electrical contact with its electrode (14,16) over all temperatures and pressures to which the fuel cell assembly may be subjected during use.

    Abstract translation: 在燃料电池堆(76)中并入在每个阳极(14)和阴极(16)之间的氢气和空气气体流动空间(22,24)及其相邻的互连(40)中的导电网状间隔物(42)。 网格由金属线形成,并且形成为预定的三维图案以在电极(14,16)和互连元件(40)的表面上的多个点处接触。 形成的网状间隔物(42)通过在多个位置处通过钎焊固定到互连元件上,以形成互连,其在燃料电池堆(76)的组装期间保持图案。 所形成的图案的高度(48')大于燃料电池组件之后的气体流动空间的高度,使得在组装燃料电池堆时网格间隔件被稍微压缩(48“),因为金属网是 柔性和弹性,压缩的间隔件(48“)在燃料电池组件在使用期间可能经受的所有温度和压力上被连续推动与其电极(14,16)机械和电接触。

    Fuel cell stack having a featured interconnect element
    28.
    发明公开
    Fuel cell stack having a featured interconnect element 审中-公开
    有质感的连线燃料电池堆

    公开(公告)号:EP1300902A2

    公开(公告)日:2003-04-09

    申请号:EP02078691.9

    申请日:2002-09-09

    Abstract: An interconnect element for electrically connecting an anode and a cathode in adjacent fuel cells in a fuel cell stack, wherein said interconnect element has at least one featured surface including dimples, bosses, and/or pins arranged in a two-dimensional pattern. Preferably, both surfaces are featured, as by mechanical dimpling, embossing, or chemical etching, so that protrusions of the interconnect surface extend into either or both of the adjacent gas flow spaces to make electrical contact with the surfaces of the anode and cathode. This permits conduction of heat from the anode. The protrusions create turbulence in gas flowing through the flow spaces, which increases hydrogen consumption at the anode and hence electric output of the cell.

    Method and apparatus for gas purification in energy conversion systems
    30.
    发明公开
    Method and apparatus for gas purification in energy conversion systems 有权
    Methode und Apparat zur Gasreinigung in Energieumwandlungssystemen

    公开(公告)号:EP1231663A1

    公开(公告)日:2002-08-14

    申请号:EP02075103.8

    申请日:2002-01-14

    CPC classification number: H01M8/0662 H01M8/0612 Y10T137/2519

    Abstract: A reformate gas generating device for an energy conversion device comprises a trapping system (110) comprising a filter element (124) and a trap element (140), and a reforming system (100). The reforming system (100) is coupled to the trapping system (110), which is positioned after said reforming system (100). The trapping system (110) is monitored by a combination of devices including an on-board diagnostic system, a temperature sensor (116), and a pressure differential sensor (118), which can individually or in combination determine when to regenerate the trapping system (110). The method for trapping sulfur and particulate matter using the trapping system (110) comprises dispensing fuel into the energy conversion device. The fuel is processed in a reformer system (100) to produce a reformate. The reformate is introduced into the trapping system (110) and filtered to remove particulate matter and sulfur.

    Abstract translation: 一种用于能量转换装置的重整气体生成装置,包括包括过滤元件(124)和捕集元件(140)的捕集系统(110)和重整系统(100)。 重整系统(100)耦合到位于所述重整系统(100)之后的捕集系统(110)。 捕集系统(110)由包括车载诊断系统,温度传感器(116)和压差传感器(118)的装置的组合来监控,其可以单独地或组合地确定何时重新产生捕集系统 (110)。 使用捕集系统(110)捕集硫和颗粒物质的方法包括将燃料分配到能量转换装置中。 在重整器系统(100)中处理燃料以产生重整产物。 将重整产物引入捕集系统(110)中并过滤以除去颗粒物和硫。

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