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    Fuel cell having interdigitated flow channels and water transport plates
    4.
    发明授权
    Fuel cell having interdigitated flow channels and water transport plates 有权
    燃料电池具有交错的流动通道和水输送板

    公开(公告)号：US06780533B2

    公开(公告)日：2004-08-24

    申请号：US09733133

    申请日：2000-12-08

    申请人： Jung S. Yi ,  Jonathan Puhalski

    发明人： Jung S. Yi ,  Jonathan Puhalski

    IPC分类号： H01M804

    CPC分类号： H01M8/04089 ,  H01M8/04097 ,  H01M8/04156 ,  H01M8/04291 ,  H01M8/1007

    摘要： A fuel cell power plant includes a fuel cell having a membrane electrode assembly (MEA), which is disposed between anode and cathode support plates. Porous water transport plates or the support plates have interdigitated flow channels for the reactant gas streams to pass through and conventional flow channels for coolant streams to pass through. The pressure of the reactant gas streams is greater than the coolant stream which, within the porous water transport plates allows the coolant water to saturate the water transport plates thereby forcing the reactant gases into the anode and cathode support plates. This, in turn, increases the mass transfer of such gases into the support plates, thereby increasing the electrical performance of the fuel cell. Current densities of about 1.6 amps per square centimeter are achieved with air stochiometries of not over 2.50.

    摘要翻译： 燃料电池发电厂包括具有设置在阳极和阴极支撑板之间的膜电极组件（MEA）的燃料电池。 多孔水输送板或支撑板具有交错的流动通道，用于使反应物气流通过，以及用于冷却剂流通过的常规流动通道。 反应物气体流的压力大于冷却剂流，其在多孔水传输板内允许冷却水使水输送板饱和，从而迫使反应气体进入阳极和阴极支撑板。 这又增加了这种气体向支撑板的传质，从而提高了燃料电池的电气性能。 电流密度约为1.6安培/平方厘米，空气量计不超过2.50。

    Variable stochiometry fuel cell
    5.
    发明授权
    Variable stochiometry fuel cell 有权
    变量燃烧电池

    公开(公告)号：US06586123B1

    公开(公告)日：2003-07-01

    申请号：US09778513

    申请日：2001-02-07

    申请人： Jung S. Yi ,  Jonathan Puhalski

    发明人： Jung S. Yi ,  Jonathan Puhalski

    IPC分类号： H01M800

    CPC分类号： H01M8/04089

    摘要： A fuel cell having a polymer electrolyte membrane (16) between anode (14) and cathode (18) reactant flow fields includes a variable blower (32), the power control signal (61) of which is provided by a controller (75) in response to a current signal (63) indicative of the current of the load (71) sensed by a current detector (68). The controller responds to a schedule of blower power as a function of load current density to provide a stochiometry, S, which is fixed at a stochiometry of A, plus or minus a range of stochiometries, D, below a certain current density, C, and varies with higher current densities as: S=[A+B(i−C)]±D, where B is he slope of stochiometry as a function of current density, and i is the actual current density.

    摘要翻译： 具有在阳极（14）和阴极（18）之间的反应物流场的聚合物电解质膜（16）的燃料电池包括可变鼓风机（32），其功率控制信号（61）由控制器（75）提供 响应于指示由电流检测器（68）感测的负载（71）的电流的电流信号（63）。 控制器作为负载电流密度的函数响应鼓风机功率的时间表，以提供固定在A的化学计量学上的加热或低于一定电流密度D的范围内的D， 并随着较高的电流密度变化，如：S = [A + B（iC）]±D，其中B是作为电流密度的函数的理论计算的斜率，i是实际的电流密度。