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公开(公告)号：US09825314B2
公开(公告)日：2017-11-21
申请号：US14112394
申请日：2012-04-18
申请人： Atsushi Maeda , Kazumi Sugita , Atsushi Ida , Shingo Morikawa , Keiji Hashimoto , Satoshi Futami
发明人： Atsushi Maeda , Kazumi Sugita , Atsushi Ida , Shingo Morikawa , Keiji Hashimoto , Satoshi Futami
IPC分类号： H01M8/04082 , H01M8/241 , H01M8/2483 , H01M8/0232 , H01M8/0254 , H01M8/0258 , H01M8/04291 , B21D31/04 , H01M8/1007 , H01M8/1018
CPC分类号： H01M8/04201 , B21D31/04 , H01M8/0232 , H01M8/0254 , H01M8/0258 , H01M8/04291 , H01M8/1007 , H01M8/241 , H01M8/2483 , H01M2008/1095 , Y02P70/56 , Y10T29/18
摘要： A cathode-side gas flow path of a cell that forms part of a fuel cell is formed by a first expanded metal arranged on a gas inlet side, and a second expanded metal arranged on a downstream side. The first expanded metal is such that mesh is arranged in a straight line, and gas that flows on a gas diffusion layer side is separated from gas that flows on a separator side. The gas flowrate on the gas inlet side is reduced, so the amount of produced water that is carried away is reduced. As a result, the gas inlet side is inhibited from becoming dry at high temperatures.
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公开(公告)号：US20140162175A1
公开(公告)日：2014-06-12
申请号：US14112394
申请日：2012-04-18
申请人： Atsushi Maeda , Kazumi Sugita , Atsushi Ida , Shingo Morikawa , Keiji Hashimoto , Satoshi Futami
发明人： Atsushi Maeda , Kazumi Sugita , Atsushi Ida , Shingo Morikawa , Keiji Hashimoto , Satoshi Futami
CPC分类号： H01M8/04201 , B21D31/04 , H01M8/0232 , H01M8/0254 , H01M8/0258 , H01M8/04291 , H01M8/1007 , H01M8/241 , H01M8/2483 , H01M2008/1095 , Y02P70/56 , Y10T29/18
摘要： A cathode-side gas flow path of a cell that forms part of a fuel cell is formed by a first expanded metal arranged on a gas inlet side, and a second expanded metal arranged on a downstream side. The first expanded metal is such that mesh is arranged in a straight line, and gas that flows on a gas diffusion layer side is separated from gas that flows on a separator side. The gas flowrate on the gas inlet side is reduced, so the amount of produced water that is carried away is reduced. As a result, the gas inlet side is inhibited from becoming dry at high temperatures.
摘要翻译： 形成燃料电池的一部分的电池的阴极侧气体流路由布置在气体入口侧的第一多孔金属和布置在下游侧的第二多孔金属形成。 第一多孔金属使网状物排列成直线状，气体扩散层侧的气体与在隔板侧流动的气体分离。 气体入口侧的气体流量减少，因此被排出的产生的水量减少。 结果，气体入口侧被抑制在高温下变干。
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公开(公告)号：US20120028139A1
公开(公告)日：2012-02-02
申请号：US13259495
申请日：2010-01-19
申请人： Kousuke Kawajiri , Keiji Hashimoto , Satoshi Futami , Takamasa Kanie , Kazunari Moteki , Tomokazu Hayashi
发明人： Kousuke Kawajiri , Keiji Hashimoto , Satoshi Futami , Takamasa Kanie , Kazunari Moteki , Tomokazu Hayashi
CPC分类号： H01M8/1004 , H01M4/926 , H01M8/021 , H01M8/023 , H01M8/026 , H01M8/0267 , H01M8/04126 , H01M8/04156 , H01M2008/1095 , Y02E60/521
摘要： An electrode structure 15 is received in a joint portion of frames 13, 14. A first gas diffusion layer 19 and a first gas passage forming member 21 are arranged on a first surface of the electrode structure 15. A second gas diffusion layer 20 and a second gas passage forming member 22 are formed on a second surface of the electrode structure 15. A separator 23 is joined with a surface of the frame 13 and a surface of the gas passage forming member 21. A separator 24 is joined with a surface of the frame 14 and a surface of the gas passage forming member 22. A water passage 28 is formed between a flat plate 25 of the gas passage forming member 22 and the separator 24. The water passage 28 has a depth set to a value smaller than depth of a gas passage T2 of the gas passage forming member 22. Generated water is introduced from the gas passage T2 of the gas passage forming member 22 to the water passage 28 through capillary action via communication holes 29. The generated water in the water passage 28 is moved to a downstream side of the water passage 28 by pressure caused by oxidization gas. This prevents corrosion of the cathode side electrode catalyst layer and improves durability of the anode side gas passage forming member. As a result, a fuel cell capable of preventing decrease of power generation is provided.
摘要翻译： 电极结构15被容纳在框架13,14的接合部分中。第一气体扩散层19和第一气体通道形成构件21布置在电极结构15的第一表面上。第二气体扩散层20和 第二气体通道形成构件22形成在电极结构15的第二表面上。隔板23与框架13的表面和气体通道形成构件21的表面接合。隔板24与 框架14和气体通道形成构件22的表面。水通道28形成在气体通道形成构件22的平板25和隔板24之间。水通道28的深度设定为小于 气体通道形成构件22的气体通道T2的深度。产生的水通过连通孔29通过毛细管作用从气体通道形成构件22的气体通道T2引入水通道28.在水中产生的水 r通道28由氧化气体引起的压力移动到水通道28的下游侧。 由此，能够防止阴极侧电极催化剂层的腐蚀，提高阳极侧气体通路形成部件的耐久性。 结果，提供了能够防止发电降低的燃料电池。
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公开(公告)号：US20120009489A1
公开(公告)日：2012-01-12
申请号：US13146799
申请日：2009-03-31
CPC分类号： H01M8/04291 , H01M8/0241 , H01M8/0247 , H01M8/1004 , H01M8/241 , Y02E60/521
摘要： An electrode structure 15 is accommodated in a joint portion of frames 13 and 14. A first gas diffusion layer 19 and a first gas passage forming member 21 are laid on a first surface of the electrode structure 15, and a second gas diffusion layer 20 and a second gas passage forming member 22 are laid on a second surface of the electrode structure 15. A separator 23 is joined to surfaces of the frame 13 and the gas passage forming member 21, and a separator 24 is joined to surfaces of the frame 14 and the gas passage forming member 22. A porous layer 26 having continuous pores is located between the gas passage forming member 22 and the separator 24. A drainage promoting member 30 formed of a porous material having continuous pores is provided to communicate with a downstream end of a second gas passage T2 of the second gas passage forming member 22 and to communicate with a downstream end of the continuous pores of the porous layer 26. Generated water that has been drawn into the porous layer 26 from the second gas passage T2 by capillary action flows downstream by surface tension of water, and is then drawn into the drainage promoting member 30. The water drawn in by the drainage promoting member 30 is discharged into a discharging passage by fluid pressure of oxidation off-gas that flows from the second gas passage T2 into the continuous pores of the drainage promoting member 30. Accordingly, a fuel battery is provided in which generated water is prevented from remaining in the second gas passage T2 of the cathode side second gas passage forming member 22, and it is possible to prevent the power generation performance from being lowered by insufficient supply of oxidation gas to the electrode structure 15.
摘要翻译： 电极结构15容纳在框架13和14的接合部分中。第一气体扩散层19和第一气体通道形成构件21放置在电极结构15的第一表面上，第二气体扩散层20和 第二气体通道形成构件22被放置在电极结构15的第二表面上。隔板23接合到框架13和气体通道形成构件21的表面，并且隔板24接合到框架14的表面 具有连续孔的多孔层26位于气体通道形成构件22和隔板24之间。提供由具有连续孔的多孔材料形成的排水促进构件30与下游端 的第二气体通道形成构件22的第二气体通道T2，并与多孔层26的连续孔的下游端连通。已经被吸入孔中的产生的水 通过毛细管作用从第二气体通道T2流出的层26从水的表面张力向下游流动，然后被吸入排水促进构件30.被排水促进构件30吸入的水通过流体压力排出到排出通道 的氧化废气从第二气体通道T2流入排水促进构件30的连续孔。因此，提供了一种燃料电池，其中防止了生成的水残留在阴极侧第二气体通道T2中的第二 气体通道形成构件22，并且可以通过向电极结构15供应不足的氧化气体来防止发电性能降低。
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公开(公告)号：US10347920B2
公开(公告)日：2019-07-09
申请号：US15489582
申请日：2017-04-17
IPC分类号： H01M8/026 , H01M8/0254 , H01M8/04291 , H01M8/0265 , H01M8/04119 , H01M8/1018 , H01M8/0206 , H01M8/021
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.
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公开(公告)号：US09917310B2
公开(公告)日：2018-03-13
申请号：US14421969
申请日：2014-01-23
IPC分类号： H01M8/24 , H01M8/0258 , H01M8/2457 , H01M8/242 , H01M8/0254 , H01M8/04119 , H01M8/1018 , H01M8/241
CPC分类号： H01M8/0258 , H01M8/0254 , H01M8/04119 , H01M8/1018 , H01M8/241 , H01M8/242 , H01M8/2457 , H01M2008/1095
摘要： Gas flow channels are provided between protrusions arranged in parallel on a first surface of a partition wall of a gas flow channel forming body, and water introduction channels are provided in valleys on the opposite side of each protrusion, on a second surface. In order to allow the gas flow channels and the water introduction channels to communicate so that water can pass there through, communication channels is provided to the partition wall. Intermediate structures are correspondingly provided inside the water introduction channels to the communication channels. A set of communication channels is formed by a pair of communication channels positioned at a first interval. A set of communication channels and another set of communication channels adjacent thereto are positioned on each protrusion with a second interval therebetween.
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公开(公告)号：US20160064766A1
公开(公告)日：2016-03-03
申请号：US14707838
申请日：2015-05-08
CPC分类号： H01M8/2485 , H01M8/0206 , H01M8/0232 , H01M8/0247 , H01M8/0276 , Y02P70/56
摘要： A fuel cell includes a first separator and a second separator. A second protrusion is formed on a first sealing portion of the first separator. A concave portion is formed in a second sealing portion of the second separator. When fuel cells are stacked together sequentially in the vertical direction without displacing relative to one another, the center of the second protrusion and the center of the concave portion are aligned with each other. Even if the fuel cells are displaced while being stacked together, the upper fuel cell in the vertical direction is moved to decrease the distance between the center of the second protrusion and the center of the corresponding concave portion.
摘要翻译： 燃料电池包括第一分离器和第二分离器。 第二突起形成在第一分离器的第一密封部分上。 在第二分离器的第二密封部分中形成凹部。 当燃料电池在垂直方向上依次堆叠而不相对于彼此移位时，第二突起的中心和凹部的中心彼此对准。 即使燃料电池堆叠在一起而移动，上部燃料电池在垂直方向上移动，以减小第二突起的中心与相应凹部的中心之间的距离。
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公开(公告)号：US09160020B2
公开(公告)日：2015-10-13
申请号：US13259495
申请日：2010-01-19
申请人： Kousuke Kawajiri , Keiji Hashimoto , Satoshi Futami , Takamasa Kanie , Kazunari Moteki , Tomokazu Hayashi
发明人： Kousuke Kawajiri , Keiji Hashimoto , Satoshi Futami , Takamasa Kanie , Kazunari Moteki , Tomokazu Hayashi
CPC分类号： H01M8/1004 , H01M4/926 , H01M8/021 , H01M8/023 , H01M8/026 , H01M8/0267 , H01M8/04126 , H01M8/04156 , H01M2008/1095 , Y02E60/521
摘要： An electrode structure 15 is received in a joint portion of frames 13, 14. A first gas diffusion layer 19 and a first gas passage forming member 21 are arranged on a first surface of the electrode structure 15. A second gas diffusion layer 20 and a second gas passage forming member 22 are formed on a second surface of the electrode structure 15. A separator 23 is joined with a surface of the frame 13 and a surface of the gas passage forming member 21. A separator 24 is joined with a surface of the frame 14 and a surface of the gas passage forming member 22. A water passage 28 is formed between a flat plate 25 of the gas passage forming member 22 and the separator 24. The water passage 28 has a depth set to a value smaller than depth of a gas passage T2 of the gas passage forming member 22. Generated water is introduced from the gas passage T2 of the gas passage forming member 22 to the water passage 28 through capillary action via communication holes 29. The generated water in the water passage 28 is moved to a downstream side of the water passage 28 by pressure caused by oxidization gas. This prevents corrosion of the cathode side electrode catalyst layer and improves durability of the anode side gas passage forming member. As a result, a fuel cell capable of preventing decrease of power generation is provided.
摘要翻译： 电极结构15被容纳在框架13,14的接合部分中。第一气体扩散层19和第一气体通道形成构件21布置在电极结构15的第一表面上。第二气体扩散层20和 第二气体通道形成构件22形成在电极结构15的第二表面上。隔板23与框架13的表面和气体通道形成构件21的表面接合。隔板24与 框架14和气体通道形成构件22的表面。水通道28形成在气体通道形成构件22的平板25和隔板24之间。水通道28的深度设定为小于 气体通道形成构件22的气体通道T2的深度。产生的水通过连通孔29通过毛细管作用从气体通道形成构件22的气体通道T2引入水通道28.在水中产生的水 r通道28由氧化气体引起的压力移动到水通道28的下游侧。 由此，能够防止阴极侧电极催化剂层的腐蚀，提高阳极侧气体通路形成部件的耐久性。 结果，提供了能够防止发电降低的燃料电池。
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公开(公告)号：US10727511B2
公开(公告)日：2020-07-28
申请号：US14410465
申请日：2013-03-01
IPC分类号： H01M8/04291 , H01M8/1004 , H01M8/04089 , H01M8/241 , H01M8/0265 , H01M8/0276 , H01M8/04119 , H01M8/1018
摘要： A fuel battery includes unit cells, each of which includes a membrane electrode assembly having two gas diffusion layers. Gas passage forming bodies are stacked on an outer surface of each of the gas diffusion layers of each of the unit cells so that each of the unit cells includes a fuel gas passage and an oxidant gas passage. Each of the gas passage forming bodies includes water guide passages, each of which is located between adjacent ones of the gas passages. A communication passage is arranged between each of the gas passages and an adjacent one of the water guide passages to guide water from the gas passage to the water guide passage. The communication passage has a higher pressure loss than that of the gas passage.
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公开(公告)号：US10651495B2
公开(公告)日：2020-05-12
申请号：US14707838
申请日：2015-05-08
IPC分类号： H01M8/2485 , H01M8/0247 , H01M8/0206 , H01M8/0232 , H01M8/0276 , H01M8/24
摘要： A fuel cell includes a first separator and a second separator. A second protrusion is formed on a first sealing portion of the first separator. A concave portion is formed in a second sealing portion of the second separator. When fuel cells are stacked together sequentially in the vertical direction without displacing relative to one another, the center of the second protrusion and the center of the concave portion are aligned with each other. Even if the fuel cells are displaced while being stacked together, the upper fuel cell in the vertical direction is moved to decrease the distance between the center of the second protrusion and the center of the corresponding concave portion.
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