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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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公开(公告)号：US08835064B2
公开(公告)日：2014-09-16
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：US20150333357A1
公开(公告)日：2015-11-19
申请号：US14410465
申请日：2013-03-01
摘要： A fuel battery includes unit cells, each of which includes a membrane electrode assembly having tow 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 pass 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.
摘要翻译： 燃料电池包括单元电池，每个电池单元包括具有丝束气体扩散层的膜电极组件。 气体通道形成体层叠在每个单元电池的每个气体扩散层的外表面上，使得每个单元电池包括燃料气体通道和氧化剂气体通道。 每个气体通道形成体包括导水通道，每个导水通道位于相邻的气体通道之间。 在每个气体通道和相邻的导水通道之间布置有连通通道，以将水从气体通道引导到导水通道。 连通通道的压力损失高于气体通道。
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公开(公告)号：US09190680B2
公开(公告)日：2015-11-17
申请号：US14007952
申请日：2012-04-11
CPC分类号： H01M8/04291 , H01M8/0247 , H01M8/0258 , H01M8/0267 , H01M8/241 , H01M8/2457 , Y02E60/50
摘要： A fuel battery includes an oxidant gas flow passage having a downstream section, in which a gas diffusion porous body is arranged. The fuel battery includes a fuel gas flow passage having a downstream section, in which a gas diffusion porous body is arranged. A cooling medium flow passage is formed between a first separator of each unit cell of the fuel battery and a second separator of a unit cell adjacent to the unit cell. The flowing direction of a cooling medium in the cooling medium flow passage is the same as that of oxidant gas in the oxidant gas flow passage. An upstream section of the cooling medium flow passage is located closer to a surface of a membrane-electrode assembly that faces the oxidant gas flow passage adjacent to the cooling medium flow passage as compared with a downstream section of the cooling medium flow passage.
摘要翻译： 燃料电池包括具有下游部分的氧化剂气体流动通道，其中布置有气体扩散多孔体。 燃料电池包括具有下游部分的燃料气体流动通道，其中布置有气体扩散多孔体。 在燃料电池的每个单元电池的第一分离器和与单元电池相邻的单元电池的第二分离器之间形成冷却介质流动通道。 冷却介质流路中的冷却介质的流动方向与氧化剂气体流路中的氧化剂气体的流动方向相同。 与冷却介质流路的下游部相比，冷却介质流路的上游部更靠近膜电极接合面与氧化剂气体流路相邻的冷却介质流路的表面。
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公开(公告)号：US09065090B2
公开(公告)日：2015-06-23
申请号：US13522620
申请日：2010-12-16
CPC分类号： H01M8/026 , H01M8/0263 , H01M8/0265 , H01M2008/1095 , H01M2250/20 , Y02E60/50 , Y02T90/32
摘要： A membrane electrode assembly (15) formed by a solid electrolyte membrane (16) and electrode catalyst layers (17, 18) is interposed between a pair of frames (13, 14). Gas diffusion layers (19, 20) are laminated onto the surface of the electrode catalyst layers (17, 18). A first gas passage forming member (21) is laminated onto the surface of the gas diffusion layer (19) while a second gas passage forming member (22) is laminated onto the surface of the gas diffusion layer (20). Separators (23, 24) contact surfaces of the frame (13, 14) and the first and second gas passage forming member (21, 22). A plurality of first and second straight grooves (21c, 21d) are formed on the first gas passage forming member (21), such that the widths (w1, w2) differ from each other, and cross-sectional areas of the paths for the first and second gas passages (T1, T2) differ from each other.
摘要翻译： 由固体电解质膜（16）和电极催化剂层（17,18）形成的膜电极组件（15）插入在一对框架（13,14）之间。 气体扩散层（19,20）层压在电极催化剂层（17,18）的表面上。 第一气体通道形成构件（21）层压在气体扩散层（19）的表面上，而第二气体通道形成构件（22）层压在气体扩散层（20）的表面上。 隔板（23,24）接触框架（13,14）和第一和第二气体通道形成构件（21,22）的表面。 在第一气体通道形成构件（21）上形成有多个第一和第二直槽（21c，21d），使得宽度（w1，w2）彼此不同，并且所述路径的横截面积 第一和第二气体通路（T1，T2）彼此不同。
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公开(公告)号：US20140017582A1
公开(公告)日：2014-01-16
申请号：US14007952
申请日：2012-04-11
IPC分类号： H01M8/04
CPC分类号： H01M8/04291 , H01M8/0247 , H01M8/0258 , H01M8/0267 , H01M8/241 , H01M8/2457 , Y02E60/50
摘要： A fuel battery includes an oxidant gas flow passage having a downstream section, in which a gas diffusion porous body is arranged. The fuel battery includes a fuel gas flow passage having a downstream section, in which a gas diffusion porous body is arranged. A cooling medium flow passage is formed between a first separator of each unit cell of the fuel battery and a second separator of a unit cell adjacent to the unit cell. The flowing direction of a cooling medium in the cooling medium flow passage is the same as that of oxidant gas in the oxidant gas flow passage. An upstream section of the cooling medium flow passage is located closer to a surface of a membrane-electrode assembly that faces the oxidant gas flow passage adjacent to the cooling medium flow passage as compared with a downstream section of the cooling medium flow passage.
摘要翻译： 燃料电池包括具有下游部分的氧化剂气体流动通道，其中布置有气体扩散多孔体。 燃料电池包括具有下游部分的燃料气体流动通道，其中布置有气体扩散多孔体。 在燃料电池的每个单元电池的第一分离器和与单元电池相邻的单元电池的第二分离器之间形成冷却介质流动通道。 冷却介质流路中的冷却介质的流动方向与氧化剂气体流路中的氧化剂气体的流动方向相同。 与冷却介质流路的下游部相比，冷却介质流路的上游部更靠近膜电极接合面与氧化剂气体流路相邻的冷却介质流路的表面。
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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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