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公开(公告)号：EP3276722B1
公开(公告)日：2019-10-16
申请号：EP17183337.9
申请日：2017-07-26
发明人： SHIBATA, Kazunori , NAKAJI, Hiroya , OKABE, Hiroki , SHINOZAKI, Yoshinori , KAWAJIRI, Kousuke , FUTAMI, Satoshi , KANIE, Takamasa
IPC分类号： H01M8/0258 , H01M8/0254 , H01M8/04119 , H01M8/1018 , H01M8/0206
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公开(公告)号：EP3276722A1
公开(公告)日：2018-01-31
申请号：EP17183337.9
申请日：2017-07-26
发明人： SHIBATA, Kazunori , NAKAJI, Hiroya , OKABE, Hiroki , SHINOZAKI, Yoshinori , KAWAJIRI, Kousuke , FUTAMI, Satoshi , KANIE, Takamasa
IPC分类号： H01M8/0258 , H01M8/0254 , H01M8/04119 , H01M8/1018 , H01M8/0206
摘要： A gas flow passage-forming member (10) is disposed between a membrane electrode and gas diffusion layer assembly (12) and a separator (13) of a fuel cell, and the gas flow passage-forming member (10) is configured to form a gas flow passage (Ar). The gas flow passage-forming member (10) has a corrugated shape such that groove portions (31, 33) and ridge portions (32, 34) are provided on each of a front side and a back side of the gas flow passage-forming member (10). The groove portions (31) each serve as the gas flow passage (Ar). The gas flow passage-forming member (10) has communication holes (41) providing communication between the front side and the back side, and the communication holes (41) are provided in a region downstream of an upstream region (30A) in a gas flow direction. The upstream region (30A) is a non-communication region with no communication hole (41).
摘要翻译： 在燃料电池的膜电极与气体扩散层组合体（12）和隔板（13）之间配置气体流路形成部件（10），该气体流路形成部件（10） 气流通道（Ar）。 气体流路形成部件（10）具有波形形状，使得在气体流路形成部件（10）的前后两侧分别设置槽部（31,33）和隆起部（32,34） 成员（10）。 各槽部（31）成为气体流路（Ar）。 气体流路形成部件（10）具有在正面和背面之间连通的连通孔（41），连通孔（41）设置在气体的上游区域（30A）的下游区域 流动的方向。 上游区域（30A）是不具有连通孔（41）的非连通区域。
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公开(公告)号：EP4084160A1
公开(公告)日：2022-11-02
申请号：EP20905778.5
申请日：2020-08-07
IPC分类号： H01M8/0247 , H01M8/0258 , H01M8/10
摘要： A separator for a fuel cell includes protrusions and gas passage portions. The protrusions each include a contact surface configured to contact a power generation portion. The gas passage portions are each arranged between two adjacent ones of the protrusions. An upstream side and a downstream side are defined with reference to a direction in which reactant gas flows through the gas passage portions. The protrusions each include a downstream end. The contact surfaces of the protrusions each include a first groove extending along an extending direction of the protrusions. The downstream end of each of the protrusions includes a separation surface. The separation surface is continuous with the contact surface on the downstream side and separated from the power generation portion. The separation surface includes a second groove that is continuous with the first groove.
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公开(公告)号：EP4131521A1
公开(公告)日：2023-02-08
申请号：EP20928049.4
申请日：2020-12-02
IPC分类号： H01M8/0258 , H01M8/10
摘要： A separator (20) for a fuel cell includes protrusions (31, 41) that extend in parallel and are spaced apart from each other. The protrusions are configured to contact a power generation portion. The separator includes a gas passage (32, 42) that extends between two adjacent ones of the protrusions along the protrusions. The gas passage is configured to allow reactant gas to flow through the gas passage. The gas passage includes at least one rib (50) that protrudes toward the power generation portion and extends in an extending direction of the gas passage. A downstream end of the rib includes a gradually-changing portion (52) that gradually becomes farther from the power generation portion toward a downstream side.
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公开(公告)号：EP4002523A1
公开(公告)日：2022-05-25
申请号：EP20843216.1
申请日：2020-03-12
IPC分类号： H01M8/026 , H01M8/0265 , H01M8/0276 , H01M8/10
摘要： A fuel cell stack includes stacked cells, each including a sheet-shaped power generation portion, two separators, a gas passage defining plate that includes a gas passage portion through which reactant gas flows, and a frame member that includes a supply port through which the reactant gas is supplied to the gas passage portion and a discharge port through which the reactant gas is discharged from the gas passage portion. The gas passage portion includes opposing portions extended in a flow direction of the reactant gas and arranged in parallel in an orthogonal direction and wavy portions each having a wavy cross-sectional shape orthogonal to the orthogonal direction. The gas passage portion includes a first passage portion adjacent to the supply port in the flow direction and a second passage portion adjacent to the first passage portion in the orthogonal direction. The connection passages of the second passage portion each have a larger cross-sectional flow area than the connection passages of the first passage portion.
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公开(公告)号：EP3240079A1
公开(公告)日：2017-11-01
申请号：EP17165873.5
申请日：2017-04-11
IPC分类号： H01M8/04119 , H01M8/0254 , H01M8/026 , H01M8/0265 , H01M8/0206 , H01M8/021 , H01M8/1018
CPC分类号： H01M8/026 , H01M8/0206 , H01M8/021 , H01M8/0254 , H01M8/0265 , H01M8/04156 , H01M8/04291 , H01M2008/1095
摘要： A gas channel forming plate is arranged between a membrane electrode assembly and a flat separator base. The gas channel forming plate includes gas channels arranged on a surface that faces the membrane electrode assembly, water channels each formed on the back side of the protrusion between an adjacent pair of the gas channels, communication passages that connect the gas channels and the water channels to each other, and guide portions formed by causing an inner wall surface of a gas channel to protrude inward in the gas channel. The guide portions are formed such that the upstream edge of each communication passage is arranged in a range in which, in the velocity vector of the gas flowing in the gas channel, the directional component directed from the side corresponding to the membrane electrode assembly toward the flat separator base has a positive value.
摘要翻译： 气体通道形成板布置在膜电极组件和平坦分离器基体之间。 所述气体流路形成板具有：配置在与所述膜电极接合体相对的面上的气体流路;形成在相邻的所述一对气体流路之间的所述突起的背面侧的水路;连接所述气体流路和所述水路的连通路 以及通过使气体通道的内壁表面在气体通道中向内突出而形成的引导部分。 引导部分形成为使得每个连通通道的上游边缘布置在这样的范围内，在该范围中，在气体通道中流动的气体的速度矢量中，从与膜电极组件相对应的一侧朝向 平板分离器基地具有正面价值。
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公开(公告)号：EP4131522A1
公开(公告)日：2023-02-08
申请号：EP20928136.9
申请日：2020-12-02
IPC分类号： H01M8/0258 , H01M8/10
摘要： A separator (20) for a fuel cell includes protrusions (31, 41) that extend in parallel and are spaced apart from each other. The protrusions are configured to contact a power generation portion. The separator includes a gas passage (32, 42) that extends between two adjacent ones of the protrusions along the protrusions. The gas passage is configured to allow reactant gas to flow through the gas passage. The gas passage includes ribs (50) that protrude toward the power generation portion and extend in an extending direction of the gas passage. The ribs include first ribs (60) arranged in parallel and spaced apart from each other in an arrangement direction of the protrusions and a second rib (70) located between adjacent ones of the first ribs in the arrangement direction. A downstream end of each of the first ribs includes a separated portion (63) separated from the power generation portion. An upstream end of the second rib includes an inclined portion (72) inclined so as to become closer to the power generation portion toward a downstream side. At least part of the inclined portion is located downstream of at least part of the separated portion.
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公开(公告)号：EP4002524A1
公开(公告)日：2022-05-25
申请号：EP20843516.4
申请日：2020-03-12
IPC分类号： H01M8/026 , H01M8/0265 , H01M8/0276 , H01M8/10
摘要： A fuel cell stack includes stacked cells, each including a sheet-shaped power generation portion, two separators, a gas passage defining plate that includes a gas passage portion through which reactant gas flows, and a frame member that includes a supply port through which the reactant gas is supplied to the gas passage portion and a discharge port through which the reactant gas is discharged from the gas passage portion. The gas passage portion includes opposing portions extended in a flow direction of the reactant gas and arranged in parallel in an orthogonal direction. A main passage is defined between each opposing portion and the power generation portion. The gas passage portion includes a first passage portion adjacent to the supply port in the flow direction and a second passage portion adjacent to the first passage portion in the orthogonal direction. The main passages of the second passage portion each have a larger cross-sectional flow area than the main passages of the first passage portion.
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