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    • 6. 发明授权
    • Separator plate configuration for a fuel cell
    • 燃料电池分离板配置
    • US08507137B2
    • 2013-08-13
    • US12922724
    • 2008-04-23
    • Glenn Michael AllenGennady Resnick
    • Glenn Michael AllenGennady Resnick
    • H01M8/04
    • H01M8/0204H01M8/023H01M8/0258H01M8/0267H01M8/04104H01M8/04119
    • A fuel cell includes a membrane electrode assembly comprised of a membrane sandwiched between anode and cathode catalyst structures. An anode separator plate and a cathode separator plate are arranged adjacent to the membrane electrode assembly opposite from one another. The anode and cathode separator plates include opposing sides in which one of the opposing sides of the anode and cathode respectively have fuel and oxidant flow fields in communication with the membrane. The anode separator plate is a structure having a first water permeability and is configured to permit passage of water between its opposing sides and with its flow field, and the cathode separator plate comprises a structure having a second water permeability less than the first water permeability of the anode separator plate. In one example, the anode is provided by a porous separator plate, and the cathode is provided by a non-porous, or solid, plate.
    • 燃料电池包括由夹在阳极和阴极催化剂结构之间的膜构成的膜电极组件。 阳极隔板和阴极隔板相邻地布置在膜电极组件的附近。 阳极和阴极隔板包括相对的侧面,阳极和阴极的相对侧中的一个分别具有与膜连通的燃料和氧化剂流场。 阳极隔板是具有第一透水性的结构,其构造成允许水在其相对侧和其流场之间通过,并且阴极隔板包括具有小于第一透水性的第二透水性的结构 阳极隔板。 在一个实例中,阳极由多孔隔板提供,阴极由无孔或固体板提供。
    • 9. 发明授权
    • Initiating operation of an electric vehicle or other load powered by a fuel cell at sub-freezing temperature
    • 在次冷冻温度下启动由燃料电池供电的电动车辆或其他负载
    • US06673481B1
    • 2004-01-06
    • US10390439
    • 2003-03-17
    • Carl A. ReiserGennady ResnickNeil A. Popovich
    • Carl A. ReiserGennady ResnickNeil A. Popovich
    • H01M804
    • H01M8/04223H01M8/0258H01M8/0267H01M8/04022H01M8/04156H01M8/04302H01M8/241H01M8/2457
    • A vehicle (150) includes a fuel cell stack (151) started when the stack is below freezing, by connection (158) to the vehicle propulsion system (159) within a few seconds of starting the flow of fuel (179) and oxidant (173), or when open circuit voltage (155, 156) is detected. The fuel is in excess of stochiometry requirement and the oxidant is in excess of at least twice stochiometric requirement, either may be at about atmospheric pressure or at 4 kPa (0.6 psi) or more above the pressure of any water in said water passages, and either may be below freezing. Water transport plates (84, 86, 88, 89) have water passages connected to a water circulation loop (170) including a reservoir (164) having an auxiliary heater (161) connected (160) to the stack. Warming of cell stack materials and ice in the water transport plates, heat of fusion of melting ice, warming of melted water, and evaporative cooling of water melted in the water transport plates keep the fuel cell cool until liquid coolant can be circulated.
    • 车辆(150)包括当起动燃料(179)和氧化剂(179)的流动的几秒钟内,通过在车辆推进系统(159)上连接(158)而在堆栈低于冰点时启动的燃料电池堆(151) 173),或者当检测到开路电压(155,156)时。 燃料超过了化学计量要求,氧化剂超过了至少两次化学计量要求,可能处于大气压或高于所述水通道中任何水的压力的4kPa(0.6psi)或更高,以及 可能低于冰点。 水输送板(84,86,88,89)具有连接到水循环回路(170)的水通道,水循环回路(170)包括具有与堆叠连接(160)的辅助加热器(161)的储存器(164)。 水输送板中的电池堆料和冰的变暖,熔化冰融化的热量,熔融水的升温以及在水输送板中熔化的水的蒸发冷却使得燃料电池冷却直到液体冷却剂可循环。