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    • 1. 发明申请
    • METHODS FOR OPERATING FUEL CELLS FED WITH A GAS CONTAINING HYDROGEN AND CARBON OXIDE, AND DEVICES RELATING THERETO
    • 用含有氢氧化物和氧化碳的气体操作燃料电池的方法,以及与其相关的装置
    • WO2002071519A2
    • 2002-09-12
    • PCT/EP2002/002469
    • 2002-03-06
    • NUVERA FUEL CELLS EUROPE S.R.L.FAITA, GiuseppeRAMUNNI, Enrico
    • FAITA, GiuseppeRAMUNNI, Enrico
    • H01M8/00
    • H01M8/04089H01M8/0662H01M8/1007H01M2300/0082
    • The invention describes a method and the relevant devices for permitting an operation stable with time of a stack of membrane fuel cells fed with air and a gas containing hydrogen and at least 100 ppm of carbon monoxide, characterised in that it provides for an oxidising condition at the anodes of said cells in a self-adjusting continuos way or sequentially discontinuous way. Different embodiments of the invention are illustrated wherein the oxidising condition is obtained by adding to the gas containing hydrogen and carbon monoxide, oxygen produced in an electrolysis cell integrated to the fuel cell stack, or by flowing air through porous areas obtained in the bipolar plates or by resorting to high gas diffusion rate membranes, wherein the air flow rate is regulated in both cases by adjusting the pressure differential existing between air and the gas containing hydrogen and carbon monoxide. According to a further embodiment of the method of the invention, the oxidising condition is obtained by sequentially short-circuiting the fuel cell stacks provided with external contacts connected to a control unit.
    • 本发明描述了一种方法和相关装置,用于允许随着空气和含氢气体和至少100ppm一氧化碳的气体的堆叠的膜燃料电池的时间稳定的操作,其特征在于其提供氧化条件 所述细胞的阳极以自调节连续方式或顺序不连续的方式。 说明了本发明的不同实施例,其中氧化条件是通过加入含有氢气和一氧化碳的气体,在与燃料电池堆集成的电解池中产生的氧气,或通过将空气流经双极板中获得的多孔区域或 通过利用高气体扩散速率膜,其中通过调节存在于空气和含有氢气和一氧化碳的气体之间的压力差,两种情况都调节空气流速。 根据本发明方法的另一实施例,通过使设置有连接到控制单元的外部触头的燃料电池堆顺序地短路来获得氧化条件。
    • 7. 发明申请
    • METHODS FOR OPERATING FUEL CELLS FED WITH A GAS CONTAINING HYDROGEN AND CARBON OXIDE, AND DEVICES RELATING THERETO
    • 用含有氢氧化物和氧化碳的气体操作燃料电池的方法,以及与其相关的装置
    • WO02071519A3
    • 2003-03-20
    • PCT/EP0202469
    • 2002-03-06
    • NUVERA FUEL CELLS EUROP SRLFAITA GIUSEPPERAMUNNI ENRICO
    • FAITA GIUSEPPERAMUNNI ENRICO
    • H01M8/00H01M8/02H01M8/04H01M8/06H01M8/10H01M8/24
    • H01M8/04089H01M8/0662H01M8/1007H01M2300/0082
    • The invention describes a method and the relevant devices for permitting an operation stable with time of a stack of membrane fuel cells fed with air and a gas containing hydrogen and at least 100 ppm of carbon monoxide, characterised in that it provides for an oxidising condition at the anodes of said cells in a self-adjusting continuos way or sequentially discontinuous way. Different embodiments of the invention are illustrated wherein the oxidising condition is obtained by adding to the gas containing hydrogen and carbon monoxide, oxygen produced in an electrolysis cell integrated to the fuel cell stack, or by flowing air through porous areas obtained in the bipolar plates or by resorting to high gas diffusion rate membranes, wherein the air flow rate is regulated in both cases by adjusting the pressure differential existing between air and the gas containing hydrogen and carbon monoxide. According to a further embodiment of the method of the invention, the oxidising condition is obtained by sequentially short-circuiting the fuel cell stacks provided with external contacts connected to a control unit.
    • 本发明描述了一种方法和相关装置,用于允许随着空气和含氢气体和至少100ppm一氧化碳的气体的堆叠的膜燃料电池的时间稳定的操作,其特征在于其提供氧化条件 所述细胞的阳极以自调节连续方式或顺序不连续的方式。 说明了本发明的不同实施例,其中氧化条件是通过加入含有氢气和一氧化碳的气体,在与燃料电池堆集成的电解池中产生的氧气,或通过将空气流经双极板中获得的多孔区域或 通过利用高气体扩散速率膜,其中通过调节存在于空气和含有氢气和一氧化碳的气体之间的压力差,两种情况都调节空气流速。 根据本发明方法的另一实施例,通过使设置有连接到控制单元的外部触头的燃料电池堆顺序地短路来获得氧化条件。