公开(公告)号：US08735015B2

公开(公告)日：2014-05-27

申请号：US12873904

申请日：2010-09-01

申请人： Hidetada Kojima ,  Masaru Oda ,  Keisuke Suda

发明人： Hidetada Kojima ,  Masaru Oda ,  Keisuke Suda

IPC分类号： H01M8/24

CPC分类号： H01M8/026 ,  H01M8/0232 ,  H01M8/0267 ,  H01M8/242 ,  H01M8/2483 ,  H01M2008/1095

摘要： A fuel cell includes a plurality of power generation cells each having a first separator. The separator has a fuel gas flow field. A fuel gas supply passage extends through one corner of the power generation cell in the stacking direction, a fuel gas flowing through the fuel gas supply passage into a fuel gas flow field. An inlet buffer is provided upstream of the fuel gas flow field. The fuel gas supply passage and the inlet buffer are connected by a plurality of inlet connection grooves. The inlet connection grooves are inclined from a direction perpendicular to a wall surface of the fuel gas supply passage toward the center of the fuel gas flow field.

摘要翻译： 燃料电池包括多个具有第一分离器的发电单元。 分离器具有燃料气体流场。 燃料气体供给路径沿堆叠方向延伸穿过发电单元的一个角部，将燃料气体从燃料气体供给通路流入燃料气体流场。 入口缓冲器设置在燃料气体流场的上游。 燃料气体供给通路和入口缓冲器通过多个入口连接槽连接。 入口连接槽从与燃料气体供给通道的壁面垂直的方向朝向燃料气体流场的中心倾斜。

公开(公告)号：US08409767B2

公开(公告)日：2013-04-02

申请号：US12953486

申请日：2010-11-24

申请人： Masaru Oda ,  Yasuhiro Watanabe ,  Hidetada Kojima

发明人： Masaru Oda ,  Yasuhiro Watanabe ,  Hidetada Kojima

IPC分类号： H01M8/04

CPC分类号： H01M8/0265 ,  H01M2008/1095

摘要： A fuel cell includes a membrane electrode assembly and separators which are stacked. A fuel gas channel allows a fuel gas to flow along a surface of one of a pair of electrodes. An oxidant gas channel allows an oxidant gas to flow along a surface of another of a pair of electrodes. A channel width of the oxidant gas channel in a central portion of the oxidant gas channel in a channel width direction is larger than a channel width of the oxidant gas channel in both end portions of the oxidant gas channel in the channel width direction. A channel width of the fuel gas channel in a central portion of the fuel gas channel in a channel width direction is smaller than a channel width of the fuel gas channel in both end portions of the fuel gas channel in the channel width direction.

摘要翻译： 燃料电池包括层叠的膜电极组件和隔板。 燃料气体通道允许燃料气体沿着一对电极之一的表面流动。 氧化剂气体通道允许氧化剂气体沿着一对电极中的另一个的表面流动。 氧化剂气体通道在通道宽度方向的中心部分的氧化剂气体通道的通道宽度大于氧化剂气体通道在通道宽度方向的两端部的氧化剂气体通道的通道宽度。 燃料气体通道的沿通道宽度方向的中心部分的燃料气体通道的通道宽度小于燃料气体通道在通道宽度方向两端部的燃料气体通道的通道宽度。

公开(公告)号：US20110123898A1

公开(公告)日：2011-05-26

申请号：US12953486

申请日：2010-11-24

申请人： Masaru ODA ,  Yasuhiro Watanabe ,  Hidetada Kojima

发明人： Masaru ODA ,  Yasuhiro Watanabe ,  Hidetada Kojima

IPC分类号： H01M8/10

CPC分类号： H01M8/0265 ,  H01M2008/1095

摘要： A fuel cell includes a membrane electrode assembly and separators which are stacked. A fuel gas channel allows a fuel gas to flow along a surface of one of a pair of electrodes. An oxidant gas channel allows an oxidant gas to flow along a surface of another of a pair of electrodes. A channel width of the oxidant gas channel in a central portion of the oxidant gas channel in a channel width direction is larger than a channel width of the oxidant gas channel in both end portions of the oxidant gas channel in the channel width direction. A channel width of the fuel gas channel in a central portion of the fuel gas channel in a channel width direction is smaller than a channel width of the fuel gas channel in both end portions of the fuel gas channel in the channel width direction.

摘要翻译： 燃料电池包括层叠的膜电极组件和隔板。 燃料气体通道允许燃料气体沿着一对电极之一的表面流动。 氧化剂气体通道允许氧化剂气体沿着一对电极中的另一个的表面流动。 氧化剂气体通道在通道宽度方向的中心部分的氧化剂气体通道的通道宽度大于氧化剂气体通道在通道宽度方向的两端部的氧化剂气体通道的通道宽度。 燃料气体通道的沿通道宽度方向的中心部分的燃料气体通道的通道宽度小于燃料气体通道在通道宽度方向两端部的燃料气体通道的通道宽度。

公开(公告)号：US08815464B2

公开(公告)日：2014-08-26

申请号：US13413655

申请日：2012-03-07

申请人： Hidetada Kojima ,  Masaaki Sakano ,  Yasuhiro Watanabe

发明人： Hidetada Kojima ,  Masaaki Sakano ,  Yasuhiro Watanabe

IPC分类号： H01M8/24 ,  H01M8/10

CPC分类号： H01M8/10 ,  H01M8/0206 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/24 ,  H01M8/241 ,  H01M8/2483 ,  H01M2008/1095 ,  Y02E60/521

摘要： A fuel cell includes a membrane electrode assembly and a metal separator. The metal separator is stacked with the membrane electrode assembly. A reactant gas passage is provided between the membrane electrode assembly and the metal separator to supply a reactant gas along an electrode surface. The metal separator includes a reactant gas communication hole to communicate with the reactant gas passage. The metal separator further includes a plurality of groove groups each having a plurality of grooves press-formed to allow the reactant gas communication hole to communicate with the reactant gas passage. The grooves adjacent to each other are spaced apart by a first distance. The groove groups adjacent to each other are spaced apart by a second distance larger than the first distance.

摘要翻译： 燃料电池包括膜电极组件和金属分离器。 金属隔板与膜电极组件堆叠。 在膜电极组件和金属分离器之间设置反应气体通道，以沿电极表面供应反应气体。 金属分离器包括与反应气体通道连通的反应气体连通孔。 金属分离器还包括多个凹槽组，每个凹槽组具有多个压制成形的凹槽，以允许反应物气体连通孔与反应气体通道连通。 彼此相邻的凹槽间隔开第一距离。 彼此相邻的槽组间隔大于第一距离的第二距离。