Polymer electrolyte type fuel cell
    11.
    发明授权
    Polymer electrolyte type fuel cell 失效
    聚合物电解质型燃料电池

    公开(公告)号:US07452624B2

    公开(公告)日:2008-11-18

    申请号:US10312812

    申请日:2002-02-14

    Inventor: Tatsuto Yamazaki

    CPC classification number: H01M8/0206 H01M8/0213 H01M8/0221 H01M8/0226

    Abstract: A polymer electrolyte fuel cell of the present invention includes conductive separator plates comprising molded plates of a composition comprising a binder, conductive carbon particles whose average particle diameter is not less than 50 μm and not more than ⅓ of the thickness of the thinnest portion of the conductive separator plate, and at least one of conductive carbon fine particles and micro-diameter carbon fibers. The separator plates do not require conventional cutting processes for gas flow channels, etc., and can be easily mass produced by injection molding and achieve a reduction in the cost.

    Abstract translation: 本发明的高分子电解质型燃料电池包括导电性隔板,该导电性隔板由含有粘合剂的组合物的成型板构成,平均粒径为50μm以上且导电性碳粒的最薄部的厚度的1/3以下的导电性碳粒子 的导电性隔离板,以及导电性碳微粒和微径碳纤维中的至少一种。 隔板不需要用于气体流路等的常规切割方法,并且可以通过注射成型容易地批量生产并实现成本的降低。

    FUEL CELL
    12.
    发明申请
    FUEL CELL 有权
    燃料电池

    公开(公告)号:US20080171250A1

    公开(公告)日:2008-07-17

    申请号:US12020249

    申请日:2008-01-25

    Abstract: Even if reaction gas flows into a substantially rectangular anode-side and cathode-side gaps formed between an annular main body portion and a membrane electrode assembly in an anode side and a cathode side of a fuel cell, the reaction gas is prevented from flowing out from an outlet without passing through an electrode to cause degradation of power generation efficiency. At least one of anode-side gasket and cathode-side gasket in the fuel cell is provided with an extra sealing portion connected to an annular main body portion in such a manner that, among two pairs of gap portions opposing to each other in the anode-side gap and the cathode-side gap, the extra sealing portion intersects with one pair of gap portions having a larger pressure gradient of fuel gas and oxidant gas in a direction from an upstream side to a downstream side of a fuel gas flow channel and an oxidant gas flow channel.

    Abstract translation: 即使反应气体流入在燃料电池的阳极侧和阴极侧形成于环状主体部与膜电极组件之间的大致矩形的阳极侧和阴极侧的间隙,也能够防止反应气体流出 从而不通过电极而导致发电效率降低。 燃料电池中的阳极侧衬垫和阴极侧衬垫中的至少一个设置有与环形主体部分连接的额外的密封部分,使得在阳极中彼此相对的两对间隙部分中 所述多个密封部与燃料气体和氧化剂气体的压力梯度比从燃料气体流路的上游侧向下游侧更大的压力梯度的一对间隙相交, 氧化剂气体流动通道。

    Fuel Cell
    14.
    发明申请
    Fuel Cell 审中-公开
    燃料电池

    公开(公告)号:US20080014486A1

    公开(公告)日:2008-01-17

    申请号:US11791493

    申请日:2005-11-08

    Abstract: The temperature of cooling fluid in an inlet side manifold is increased during power generation by influence of the temperature of heat generation sections of cells. This causes variation in temperature among unit cells in a fuel cell stack, causing flooding and variation in output voltage. The invention provides a fuel cell in which an increase in temperature of cooling fluid in an inlet side manifold is suppressed, and that has an excellent durability and a stable output voltage. The fuel cell has flow paths for cooling fluid in cathode side separator plates and anode side separator plates, the flow paths connecting an inlet side manifold and an outlet side manifold for cooling fluid. Each of the flow paths for cooling fluid includes a first cooling section for cooling a heat generation section, that is, an area corresponding to a cathode or an anode, and a second cooling section located between the first cooling section and the inlet side manifold for cooling fluid.

    Abstract translation: 通过电池的发热部的温度的影响,发电中的入口侧歧管中的冷却液的温度升高。 这导致燃料电池堆中的单元电池之间的温度变化,导致溢流和输出电压的变化。 本发明提供了一种燃料电池,其中抑制入口侧歧管中的冷却流体的温度升高,并且具有优异的耐久性和稳定的输出电压。 燃料电池具有用于阴极侧隔板和阳极侧隔板的冷却流体的流路,连接入口侧歧管和出口侧歧管的流路用于冷却流体。 用于冷却流体的每个流动路径包括用于冷却发热部分的第一冷却部分,即对应于阴极或阳极的区域,以及位于第一冷却部分和入口侧歧管之间的第二冷却部分, 冷却液。

    Method of Preserving Polymer Electrolyte Fuel Cell Stack and Preservation Assembly of Polymer Electrolyte Fuel Cell Stack
    15.
    发明申请
    Method of Preserving Polymer Electrolyte Fuel Cell Stack and Preservation Assembly of Polymer Electrolyte Fuel Cell Stack 有权
    聚合物电解质燃料电池堆的保存方法和聚合物电解质燃料电池堆的保存装置

    公开(公告)号:US20070243430A1

    公开(公告)日:2007-10-18

    申请号:US11629496

    申请日:2005-06-14

    Abstract: Provided is a method of preserving a PEFC stack, which is capable of controlling degradation of performance of the PEFC stack during a time period that elapses from when the stack is placed in an uninstalled state until it is placed in an installation position and is practically used. Provided is a preservation assembly of the PEFC stack which is capable of sufficiently inhibiting degradation of performance of the PEFC stack particularly during a time period that elapses from when the stack is placed in the uninstalled state until it is placed in the installation position and is practically used. A method of preserving a PEFC stack that is provided with an oxidizing agent passage (30) having an inlet and an outlet and extending through a cathode and a reducing agent passage (40) having an inlet and an outlet and extending through an anode, comprising preserving the PEFC (200) stack in an uninstalled state in such a manner that an interior of the oxidizing agent passage (30) and an interior of the reducing agent passage (40) are set in a pressure-reduced state.

    Abstract translation: 提供了一种保存PEFC堆栈的方法,其能够在从堆叠处于卸载状态直到其被放置在安装位置并且被实际使用的时间段内经过时间段时控制PEFC堆栈的性能劣化 。 提供了一种PEFC堆叠的保存组件,其能够充分地抑制PEFC堆叠的性能劣化,特别是在堆叠处于卸载状态直到其被放置在安装位置之后经过的时间段内,并且实际上 用过的。 一种保存PEFC堆叠的方法,其具有具有入口和出口并延伸穿过阴极的氧化剂通道(30)和具有入口和出口并延伸穿过阳极的还原剂通道(40),其包括 以使得氧化剂通道(30)的内​​部和还原剂通道(40)的内部处于减压状态的方式将PEFC(200)堆叠保持在卸载状态。

    Polymer Electrolyte Fuel Cell
    16.
    发明申请
    Polymer Electrolyte Fuel Cell 审中-公开
    聚合物电解质燃料电池

    公开(公告)号:US20070196711A1

    公开(公告)日:2007-08-23

    申请号:US10593101

    申请日:2005-03-15

    CPC classification number: H01M8/04156 H01M8/1007

    Abstract: There is provided a polymer electrolyte fuel cell capable of: sufficiently suppressing the progress of drying of the polymer electrolyte in the catalyst layers and of the polymer electrolyte membrane, and in addition, the occurrence of flooding, even if the moistened conditions of the fuel gas or the oxidant gas fed to the fuel cell change; suppressing the degradation of the anode, cathode and polymer electrolyte membrane; and thus reducing the deterioration of the cell performance readily and reliably. The polymer electrolyte fuel cell includes: a polymer electrolyte membrane; an anode and a cathode which are arranged in such a manner as to hold the polymer electrolyte membrane between them; and a pair of separators having a first gas flow path for feeding fuel gas to the anode and discharging fuel gas from the anode and a second gas flow path for feeding oxidant gas to the cathode and discharging oxidant gas from the cathode, where a notched portion is made on each of the anode and the cathode in such a position so as to allow the two notched portions to face each other, the polymer electrolyte membrane is held by the pair of separators in that position, and the polymer electrolyte membrane is supported by reinforcing members having gas permeability in the notches.

    Abstract translation: 提供一种能够充分抑制催化剂层和高分子电解质膜中的高分子电解质的干燥进行的高分子电解质型燃料电池,此外,即使燃料气体的润湿条件 或者供给到燃料电池的氧化剂气体发生变化; 抑制阳极,阴极和聚合物电解质膜的劣化; 从而容易且可靠地降低电池性能的劣化。 聚合物电解质燃料电池包括:聚合物电解质膜; 阳极和阴极,以将聚合物电解质膜保持在它们之间的方式排列; 以及一对分离器,具有用于将燃料气体输送到阳极并从阳极排出燃料气体的第一气体流路和用于将氧化剂气体输送到阴极并从氧化剂气体排出阴极的第二气体流路,其中切口部分 在阳极和阴极的每一个上形成为使得两个切口部分彼此面对的位置,高分子电解质膜被该对隔板保持在该位置,聚合物电解质膜由 在凹口中具有气体渗透性的加强构件。

    Fuel cell separator and fuel cell including same
    20.
    发明授权
    Fuel cell separator and fuel cell including same 有权
    燃料电池分离器和包括其的燃料电池

    公开(公告)号:US08568941B2

    公开(公告)日:2013-10-29

    申请号:US12767507

    申请日:2010-04-26

    Abstract: A separator for use in a fuel cell of the present disclosure includes: a plate; a first gas manifold hole (51) for supplying a reactant gas, formed to penetrate said plate in a thickness direction thereof; a second gas manifold hole (52) for discharging the reactant gas, formed to penetrate said plate in a thickness direction thereof; one or more groove-like first main gas channels (18) formed on a surface of said plate to have one end connected to said first gas manifold hole (51) and the other end connected to said second gas manifold hole; a groove-like first sub-gas channel (28) formed on the surface of said plate to have one end connected to at least one of said first gas manifold hole (51) and said second gas manifold hole (52); and a groove-like second sub-gas channel (38) formed on the surface of said plate to have one end branching from said first sub-gas channel (28) and the other end being closed.

    Abstract translation: 本公开的燃料电池用隔板包括:板; 第一气体歧管孔(51),用于供应形成为在其厚度方向上穿透所述板的反应气体; 第二气体歧管孔(52),用于排出反应气体,其形成为在其厚度方向上穿透所述板; 形成在所述板的表面上的一个或多个凹槽状的第一主气体通道(18),其一端连接到所述第一气体歧管孔(51),另一端连接到所述第二气体歧管孔; 形成在所述板的表面上的一个沟槽状的第一子气体通道(28),其一端连接到所述第一气体歧管孔(51)和所述第二气体歧管孔(52)中的至少一个; 以及形成在所述板的表面上的槽状第二子气体通道(38),以使得从所述第一子气体通道(28)分支的一端和另一端被封闭。

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