Polymer electrolyte fuel cell stack and operating method thereof
    81.
    发明授权
    Polymer electrolyte fuel cell stack and operating method thereof 失效
    聚合物电解质燃料电池堆及其操作方法

    公开(公告)号:US07459231B2

    公开(公告)日:2008-12-02

    申请号:US10469878

    申请日:2002-03-05

    IPC分类号: H01M8/04 H01M8/10 H01M8/24

    摘要: A fuel cell stack (10) includes a first sub-stack (12), a second sub-stack (14), and a third sub-stack (16) disposed in the flow direction of an oxidizing gas. An intermediate plate (18a) is interposed between the first and second sub-stacks (12, 14), and an intermediate plate (18b) is interposed between the second and third sub-stacks (14, 16). In this fuel stack (10), the flow of an oxidizing gas is set such that the oxidizing gas flows in series in the direction from the first sub-stack (12) to the third sub-stack (16). Between the sub-stacks additional oxidizing gas supplies (70,74) are provided through which oxidizing gas of lower humidity than the humidity of the oxidizing gas entering the first sub-stack is supplied. This arrangement allows an efficient management of the humidity water content of the oxidizing gas with sufficient moisturizing of the solid polymer membrane whilst avoiding excessive condensation of water vapour within the stack.

    摘要翻译: 燃料电池堆(10)包括沿氧化气体的流动方向设置的第一子堆(12),第二子堆(14)和第三子堆(16)。 中间板(18a)插入在第一和第二子堆叠(12,14)之间,并且中间板(18b)插入在第二和第三子堆叠(14,16)之间。 在该燃料堆(10)中,氧化气体的流动被设定为使得氧化气体沿从第一副堆叠(12)到第三子堆(16)的方向串联流动。 在副堆叠之间,提供另外的氧化气体供应源(70,74),通过该氧化剂供应源供应比进入第一子堆的氧化气体的湿度低的氧化气体。 这种布置允许通过足够的固体聚合物膜的保湿来有效地管理氧化气体的湿度含水量,同时避免堆叠内的水蒸气过度冷凝。

    Fuel cell stack
    82.
    发明授权
    Fuel cell stack 有权
    燃料电池堆

    公开(公告)号:US07368199B2

    公开(公告)日:2008-05-06

    申请号:US10970554

    申请日:2004-10-20

    IPC分类号: H01M8/10 H01M2/08

    CPC分类号: H01M8/247 H01M8/248

    摘要: A casing includes end plates and first through fourth side plates. The first and third side plates are short, and the second and fourth side plates are long. At least cross sectional areas or shapes of the first through fourth side plates are determined such that the sides of the end plates have substantially the same deflection in the stacking direction.

    摘要翻译: 壳体包括端板和第一至第四侧板。 第一和第三侧板是短的,第二和第四侧板是长的。 确定第一至第四侧板的至少横截面积或形状,使得端板的侧面在堆叠方向上具有基本上相同的偏转。

    Fuel cell
    83.
    发明申请
    Fuel cell 有权
    燃料电池

    公开(公告)号:US20070207372A1

    公开(公告)日:2007-09-06

    申请号:US11712738

    申请日:2007-03-01

    IPC分类号: H01M8/02 H01M8/10

    摘要: A fuel gas flow field is formed on a surface of a rectangular first metal separator. The fuel gas flow field includes flow grooves extending in the direction of gravity. An outlet buffer is provided at a lower end of the fuel gas flow field. The outlet buffer includes an inclined surface inclined toward a fuel gas discharge passage. The fuel gas discharge passage is positioned below the outlet buffer. Outlet channel grooves are formed by ridges provided between the fuel gas discharge passage and the outlet buffer. Lower ends of the ridges are arranged in a zigzag pattern.

    摘要翻译: 燃料气体流场形成在矩形第一金属分离器的表面上。 燃料气体流场包括在重力方向上延伸的流动槽。 出口缓冲器设置在燃料气体流场的下端。 出口缓冲器包括朝向燃料气体排出通道倾斜的倾斜表面。 燃料气体排出通道位于出口缓冲器下方。 出口通道槽由设置在燃料气体排出通道和出口缓冲器之间的脊部形成。 脊的下端以锯齿形图案布置。

    Separator unit and fuel cell with separator unit
    84.
    发明授权
    Separator unit and fuel cell with separator unit 有权
    分离器单元和带分离器单元的燃料电池

    公开(公告)号:US07195837B2

    公开(公告)日:2007-03-27

    申请号:US10439907

    申请日:2003-05-16

    IPC分类号: H01M2/00 H01M2/02 H01M2/14

    摘要: A first separator of a unit cell and a second separator of another unit cell and are disposed adjacent to each other in a stacked assembly. Crest surfaces of straight sections of first hollow ridges of the first separator are in contact with crest surfaces of second hollow ridges of the second separator, and crest surfaces of bent sections of the first hollow ridges are spaced from crest surfaces of the second hollow ridges. The spaced crest surfaces allow first troughs of the first separator and second troughs of the second separator to communicate with each other, providing communication passages between the first separator and the second separator. Cooling water is passed through the communication passages.

    摘要翻译: 单元电池的第一分离器和另一个单元电池的第二分离器,并且以堆叠的组件彼此相邻地设置。 第一分离器的第一空心脊的直线部分的波峰表面与第二分离器的第二空心脊的波峰表面接触,并且第一空心脊的弯曲部分的波峰表面与第二空心脊的顶表面间隔开。 间隔开的峰表面允许第一分离器的第一槽和第二分离器的第二槽彼此连通,从而在第一分离器和第二分离器之间提供连通通道。 冷却水通过连通通道。

    Fuel cell system
    85.
    发明授权
    Fuel cell system 有权
    燃料电池系统

    公开(公告)号:US07097927B2

    公开(公告)日:2006-08-29

    申请号:US10218938

    申请日:2002-08-14

    IPC分类号: H01M2/02

    摘要: A fuel cell system comprises first and second parallel fuel cell stacks (12, 14) in which a positive electrode and a negative electrode of adjoining terminal electrodes are set to be opposite to one another. First and second conductive plates (82, 180) are incorporated at ends on an identical side of the first and second fuel cell stacks (12, 14). First and second connecting plate sections (106, 182) extend from the first and second conductive plates (82, 180) closely to one another under the first and second fuel cell stacks (12, 14). The first and second connecting plate sections (106, 182) are electrically connected by flexible strand wires (186a, 186b). Accordingly, the fuel cell system reliably avoids stress caused by vibration or the like at a connecting portion for electrically connecting the first and second fuel cell stacks (12, 14) to one another.

    摘要翻译: 燃料电池系统包括第一和第二平行燃料电池堆叠(12,14),其中相邻的端子电极的正电极和负极彼此相对设置。 在第一和第二燃料电池堆叠(12,14)的同一侧的端部并入第一和第二导电板(82,180)。 第一和第二连接板部分(106,182)在第一和第二燃料电池堆叠(12,14)下从第一和第二导电板(82,180)彼此紧密地延伸。 第一和第二连接板部分(106,182)通过柔性绞线(186a,186b)电连接。 因此,燃料电池系统可靠地避免在用于将第一和第二燃料电池堆(12,14)彼此电连接的连接部分处由振动等引起的应力。

    Membrane electrode assembly and fuel cell unit
    86.
    发明授权
    Membrane electrode assembly and fuel cell unit 失效
    膜电极组件和燃料电池单元

    公开(公告)号:US07056614B2

    公开(公告)日:2006-06-06

    申请号:US10191007

    申请日:2002-07-08

    IPC分类号: H01M2/08

    摘要: The present invention aims to provide a membrane electrode assembly that can increase durability by increasing the strength of an extending part of a solid polymer electrolyte membrane, and can also reduce cost by minimizing the volume of the solid polymer electrolyte membrane used.In the present invention, an anode electrode is provided on one side of a solid polymer electrolyte membrane, and a cathode electrode is provided on the other side of the solid polymer electrolyte membrane. The solid polymer electrolyte membrane is formed such that its outer peripheral portion extends the anode electrode and the cathode electrode on both sides thereof. A framc-shaped first sealing member is closely contacted with the outer peripheral edge face of the anode electrode or the cathode electrode. The frame-shaped first sealing member coats and supports one face of the extending part of the solid polymer electrolyte membrane.

    摘要翻译: 本发明的目的在于提供一种能够通过提高固体高分子电解质膜的延伸部分的强度而提高耐久性的膜电极组件,还可以通过使固体高分子电解质膜的体积最小化来降低成本。 在本发明中,在固体高分子电解质膜的一侧设置阳极电极,在固体高分子电解质膜的另一侧设置阴极电极。 固体高分子电解质膜形成为使得其外周部分在其两侧延伸阳极电极和阴极电极。 框状的第一密封构件与阳极或阴极的外周边缘面紧密接触。 框状的第一密封构件涂覆并支撑固体聚合物电解质膜的延伸部分的一个面。

    Fuel cell and separator thereof
    88.
    发明申请
    Fuel cell and separator thereof 有权
    燃料电池及其分离器

    公开(公告)号:US20050238942A1

    公开(公告)日:2005-10-27

    申请号:US11080889

    申请日:2005-03-11

    摘要: A fuel cell includes a plurality of fuel cell units. Each fuel cell unit includes an electrode assembly having electrodes and an electrolyte, a pair of separators, and gas sealing members. At least two of the fuel cell units include at least two electrode assemblies and at least three separators. In each of the separators, reaction gas communication ports are provided. In one of the separators of one of the stacked fuel cell units that is located at the end in a direction of stacking, through paths are formed. In one of the separators of one of the stacked fuel cell units that is located at the other end in the direction of stacking, reaction gas communication paths are formed. Both the through paths and the reaction gas communication paths are formed in all separators that are located between two fuel cell units that are located at the ends.

    摘要翻译: 燃料电池包括多个燃料电池单元。 每个燃料电池单元包括具有电极和电解质的电极组件,一对分离器和气体密封构件。 至少两个燃料电池单元包括至少两个电极组件和至少三个分离器。 在每个分离器中,设置有反应气体连通口。 在层叠的燃料电池单元之一的分离器之一中,位于堆叠方向的端部,形成通路。 在层叠方向的另一端的层叠型燃料电池单元之一的分离器之一形成反应气体连通路径。 贯穿路径和反应气体连通路径均形成在位于两端的两个燃料电池单元之间的所有分离器中。

    Fuel cell and fuel cell stack
    89.
    发明申请
    Fuel cell and fuel cell stack 有权
    燃料电池和燃料电池堆

    公开(公告)号:US20050089745A1

    公开(公告)日:2005-04-28

    申请号:US10626168

    申请日:2003-07-23

    摘要: The present invention provides a fuel cell comprising a pair of separators sandwiching outsides of a membrane electrode assembly composed of a pair of electrodes provided on both sides of a solid polymer electrolyte membrane, an outer seal member sandwiched by a pair of separators at a position surrounding an outer periphery of the membrane electrode assembly, an inner seal member sandwiched by one of the pair of separators and an outer periphery of the electrolyte membrane, and a backing member opposing to the inner seal member interposing the electrolyte membrane, wherein steps are formed at contact surfaces of the inner seal member and the outer seal member on one of the pair of separators.

    摘要翻译: 本发明提供一种燃料电池,其特征在于,包括一对隔板,其夹持由固定高分子电解质膜两侧设置的一对电极构成的膜电极接合体的外侧,在所述位置周围的位置夹着由一对隔板夹持的外部密封构件 膜电极组件的外周,由一对隔板中的一个和电解质膜的外周夹持的内密封构件和与插入电解质膜的内密封构件相对的背衬构件,其中,在 所述一对分离器中的一个上的所述内密封件和所述外密封件的接触表面。

    Fuel cell
    90.
    发明授权
    Fuel cell 有权
    燃料电池

    公开(公告)号:US06866956B2

    公开(公告)日:2005-03-15

    申请号:US10236307

    申请日:2002-09-06

    摘要: A fuel cell is reduced in size and weight while the respective communication passages are reliably sealed by the respective sealing members between separators and an electrode assembly. Separators of a fuel cell is provided with communication holes for a reaction gas and cooling medium provided in the outer side of gas sealing members, and with a communication passage that detours around the gas sealing members in the thickness direction of the separators and connects gas communication passages with the reaction gas communication hole. A cooling surface sealing member that seals off the cooling medium communication passage from the reaction gas communication hole is located at a position that is shifted from the communicating passage towards the communication hole side.

    摘要翻译: 燃料电池的尺寸和重量减小,同时各个连通通道被分离器和电极组件之间的相应密封件可靠地密封。 燃料电池的分离器设置有用于设置在气体密封构件的外侧的反应气体和冷却介质的连通孔,以及在隔板的厚度方向上绕气体密封构件绕行的连通通路,并且连接气体连通 通道与反应气体连通孔。 将冷却介质连通通路与反应气体连通孔密封的冷却面密封部件位于从连通通路向连通孔侧偏移的位置。