公开(公告)号：US06723463B2

公开(公告)日：2004-04-20

申请号：US10022589

申请日：2001-12-17

申请人： Narutoshi Sugita ,  Yoshinori Wariishi ,  Minoru Koshinuma ,  Takashi Komura ,  Hidemitsu Ono

发明人： Narutoshi Sugita ,  Yoshinori Wariishi ,  Minoru Koshinuma ,  Takashi Komura ,  Hidemitsu Ono

IPC分类号： H01M214

CPC分类号： H01M8/0247 ,  H01M8/0263 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/247 ,  H01M8/2483

摘要： The present invention provides a fuel stack comprising: a plurality of fuel cell units stacked together in a direction of stacking each of which comprises an electrolyte element, a pair of electrodes holding the electrolyte element therebetween, and a pair of separators holding the electrodes therebetween; a pair of terminal plates each of which is disposed outside an end fuel cell unit located at an end of the stacked fuel cell units; and a terminal element extending outwardly in the direction of stacking from the outside surface of at least one of the terminal plates; wherein the location from which the terminal element extends is located within an area on the terminal plate, corresponding to an area in a passage for an oxidizing gas formed in the end fuel cell unit disposed adjacent to the terminal element where the partial pressure of water vapor is lower than the saturated water vapor pressure. More preferably, the terminal element is disposed as close to the centerline of the terminal plate as possible so that the total electrical resistance of the terminal element and the terminal plate is minimized. By this configuration, an increase in the total electrical resistance and water vapor condensation in the fuel cell units located at the ends of the stack may be prevented.

摘要翻译： 本发明提供了一种燃料堆叠，其特征在于，包括：堆叠方向的多个燃料电池单元，其各自包括电解质元件，一对保持所述电解质元件的电极和一对在其间保持电极的隔板; 一对端子板，其各自设置在位于堆叠的燃料电池单元的端部的端部燃料电池单元的外部; 以及端子元件，其从至少一个端子板的外表面向堆叠方向向外延伸; 其中，所述端子元件延伸的位置位于所述端子板上的区域内，对应于形成在所述端部燃料电池单元中形成的氧化气体的通道中的区域，所述端部燃料电池单元邻近所述端子元件设置，其中所述水汽的分压 低于饱和水蒸气压。 更优选地，端子元件尽可能靠近端子板的中心线设置，使得端子元件和端子板的总电阻最小化。 通过这种结构，可以防止位于堆叠端部的燃料电池单元中的总电阻和水蒸气冷凝的增加。

公开(公告)号：US6048633A

公开(公告)日：2000-04-11

申请号：US188949

申请日：1998-11-10

申请人： Yosuke Fujii ,  Takafumi Okamoto ,  Manabu Tanaka ,  Akio Yamamoto ,  Hidemitsu Ono ,  Narutoshi Sugita

发明人： Yosuke Fujii ,  Takafumi Okamoto ,  Manabu Tanaka ,  Akio Yamamoto ,  Hidemitsu Ono ,  Narutoshi Sugita

IPC分类号： H01M8/02 ,  H01M8/10 ,  H01M8/24

CPC分类号： H01M8/0258 ,  H01M8/0263 ,  H01M8/241 ,  H01M2300/0082 ,  H01M8/0265

摘要： A fuel cell stack comprises first and second separators for holding a fuel cell unit therebetween. The first separator has a fuel gas flow passage and the second separator has an oxygen-containing gas flow passage. The gas flow passages are formed by grooves with the number of grooves decreasing from the inlet to the outlet. In one embodiment, the gas flow passage comprises twelve individual first gas flow passage grooves which communicate with an inlet hole on a gas inlet side, six individual second gas flow passage grooves which communicate with the first gas flow passage grooves, and three individual third gas flow passage grooves which communicate with the second gas flow passage grooves. The third gas flow passage grooves communicate with an outlet hole on a gas outlet side.

摘要翻译： 燃料电池堆包括用于在其间保持燃料电池单元的第一和第二隔板。 第一分离器具有燃料气体流路，第二分离器具有含氧气体流路。 气流通道由凹槽形成，凹槽的数量从入口到出口减小。 在一个实施例中，气体流动通道包括与气体入口侧的入口孔连通的十二个独立的第一气体流动通道槽，与第一气体流动通道沟槽连通的六个独立的第二气体流动通道槽和三个单独的第三气体 与第二气体流路槽连通的流路槽。 第三气体流路槽与气体出口侧的出口孔连通。

公开(公告)号：US06255011B1

公开(公告)日：2001-07-03

申请号：US09517535

申请日：2000-03-01

申请人： Yosuke Fujii ,  Takafumi Okamoto ,  Manabu Tanaka ,  Akio Yamamoto ,  Hidemitsu Ono ,  Narutoshi Sugita ,  Masaharu Suzuki

发明人： Yosuke Fujii ,  Takafumi Okamoto ,  Manabu Tanaka ,  Akio Yamamoto ,  Hidemitsu Ono ,  Narutoshi Sugita ,  Masaharu Suzuki

IPC分类号： H01M810

CPC分类号： H01M8/0263 ,  H01M8/026 ,  H01M8/0265 ,  H01M8/0267 ,  H01M8/241

摘要： First gas flow passage grooves communicating with a fuel gas inlet and second gas flow passage grooves communicating with a fuel gas outlet are provided on a surface of a first separator. First and second united sections are provided at merged portions of the first gas flow passage grooves and the second gas flow passage grooves. Accordingly, the number of gas flow passage grooves is throttled from the side of the fuel gas inlet to the side of the fuel gas outlet. The turbulence is allowed to occur at the throttled portion to make it possible to improve the gas diffusion performance.

摘要翻译： 在第一分离器的表面上设置有与燃料气体入口连通的第一气体流路槽和与燃料气体出口连通的第二气体流路。 第一和第二联合部设置在第一气体流路槽和第二气体流路槽的合流部。 因此，气体流路槽的数量从燃料气体入口侧向燃料气体出口侧节流。 允许在节流部分发生湍流，从而可以提高气体扩散性能。