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公开(公告)号：US10181607B2
公开(公告)日：2019-01-15
申请号：US15660085
申请日：2017-07-26
发明人： Kazunori Shibata , Hiroya Nakaji , Hiroki Okabe , Yoshinori Shinozaki , Kousuke Kawajiri , Satoshi Futami , Takamasa Kanie
IPC分类号： H01M8/0254 , H01M8/04119 , H01M8/0202 , H01M8/026 , H01M8/1004 , H01M8/0258 , H01M8/0206 , H01M8/1018
摘要： A gas flow passage-forming member is disposed between a membrane electrode and gas diffusion layer assembly and a separator of a fuel cell, and the gas flow passage-forming member is configured to form a gas flow passage. The gas flow passage-forming member has a corrugated shape such that groove portions and ridge portions are provided on each of a front side and a back side of the gas flow passage-forming member. The groove portions each serve as the gas flow passage. The gas flow passage-forming member has communication holes providing communication between the front side and the back side, and the communication holes are provided in a region downstream of an upstream region in a gas flow direction. The upstream region is a non-communication region with no communication hole.
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公开(公告)号：US10511036B2
公开(公告)日：2019-12-17
申请号：US15592579
申请日：2017-05-11
发明人： Hiroya Nakaji , Kazunori Shibata , Hiroki Okabe , Kousuke Kawajiri , Satoshi Futami , Keiji Hashimoto , Takamasa Kanie
IPC分类号： H01M8/04119 , H01M8/04291 , H01M8/1004 , H01M8/04089
摘要： A channel forming body used in a fuel cell module has a gas channel, a water conduit, and a communication path that provides communication between the gas channel and the water conduit. When a ridge is seen in a cross-section perpendicular to a channel extension direction, one of both ends of an external shape of the ridge is shaped so as to be located closer to a center of the ridge than an imaginary surface of the channel assumed to extend in a straight line along the channel extension direction. Portions of the ridge located closer to the center of the ridge are formed opposite from each other at left and right ends of the external shape of the ridge with the communication path interposed therebetween.
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公开(公告)号：US20170331123A1
公开(公告)日：2017-11-16
申请号：US15592579
申请日：2017-05-11
发明人： Hiroya Nakaji , Kazunori Shibata , Hiroki Okabe , Kousuke Kawajiri , Satoshi Futami , Keiji Hashimoto , Takamasa Kanie
IPC分类号： H01M8/04119 , H01M8/1004 , H01M8/04291
CPC分类号： H01M8/04156 , H01M8/0258 , H01M8/04089 , H01M8/04291 , H01M8/1004
摘要： A channel forming body used in a fuel cell module has a gas channel, a water conduit, and a communication path that provides communication between the gas channel and the water conduit. When a ridge is seen in a cross-section perpendicular to a channel extension direction, one of both ends of an external shape of the ridge is shaped so as to be located closer to a center of the ridge than an imaginary surface of the channel assumed to extend in a straight line along the channel extension direction. Portions of the ridge located closer to the center of the ridge are formed opposite from each other at left and right ends of the external shape of the ridge with the communication path interposed therebetween.
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公开(公告)号：US20150236368A1
公开(公告)日：2015-08-20
申请号：US14421946
申请日：2014-01-23
CPC分类号： H01M8/242 , H01M8/0254 , H01M8/0258 , H01M8/04119 , H01M8/04156 , H01M8/241 , H01M8/2445 , H01M2008/1095
摘要： A gas passage forming body for a fuel battery includes gas passages and water guide passages. A communication passage is arranged between one of the water guide passages and a gas passage that is adjacent to the water guide passage and is in communication with the adjacent gas passage and water guide passage to permit water to move therethrough. An aid portion is arranged at water drainage ends of two adjacent ones of the water guide passages and aids bonding of water drained from the water drainage ends of the two adjacent ones of the water guide passages. Thus, water drainage from the water guide passages of the gas passage forming body is improved, and water in the gas passages is reduced. As a result, the battery performance of the fuel battery is improved due to an improvement in gas diffusion.
摘要翻译： 用于燃料电池的气体通道形成体包括气体通道和导水通道。 连通通道设置在一个导水通道和与导水通道相邻的气体通道之间，并且与相邻的气体通道和导水通道连通，以允许水通过其移动。 辅助部分布置在两个相邻的导水通道的排水端，并且辅助从两个相邻的导水通道的排水端排出的水的接合。 因此，来自气体通道形成体的导水通道的排水得到改善，并且气体通道中的水减少。 结果，由于气体扩散的改善，燃料电池的电池性能得到改善。
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公开(公告)号：US11145881B2
公开(公告)日：2021-10-12
申请号：US16138803
申请日：2018-09-21
IPC分类号： H01M8/04291 , H01M8/04119 , H01M8/0258
摘要： A gas flow passage formation plate includes a plurality of projections arranged in a first direction and a second direction. The projections project toward a membrane electrode assembly. The gas flow passage formation plate further includes a gas flow passage, a water flow passage, and a plurality of openings. The gas flow passage is formed by a portion of the gas flow passage formation plate at a side opposing the membrane electrode assembly including regions between two adjacent projections. The water flow passage is formed by a portion of the gas flow passage formation plate at a side opposing a partition plate including the inside of the projections. The openings are each formed in a side wall of the projection connecting inside and outside of the projection. Each opening is arranged at only one location in one projection.
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公开(公告)号：US12068510B2
公开(公告)日：2024-08-20
申请号：US17627061
申请日：2020-03-12
IPC分类号： H01M8/00 , H01M8/026 , H01M8/0273 , H01M8/0265 , H01M8/0267
CPC分类号： H01M8/026 , H01M8/0273 , H01M8/0265 , H01M8/0267
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 and a discharge port. 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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公开(公告)号：US12027730B2
公开(公告)日：2024-07-02
申请号：US17627078
申请日：2020-03-12
IPC分类号： H01M8/0265 , H01M8/2465
CPC分类号： H01M8/0265 , H01M8/2465
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 and a discharge port. 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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