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公开(公告)号：US20220416271A1
公开(公告)日：2022-12-29
申请号：US17845258
申请日：2022-06-21
发明人： Haruyuki AONO , Takenori KOYANAGI
IPC分类号： H01M8/04082 , H01M8/2457
摘要： A fuel cell stack includes power generation cells, which are stacked in a vertical direction. Each power generation cell is configured to generated power by using gas. Each power generation cell includes a first hole and a second hole. The first holes of the power generation cells form a gas manifold. The gas manifold extends in the vertical direction, and the gas flows through the gas manifold. The second holes of the power generation cells form a passage. The passage is adjacent to the gas manifold and extends in the vertical direction. The gas manifold and the passage are connected to each other at upper ends of the gas manifold and the passage.
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公开(公告)号：US20240250278A1
公开(公告)日：2024-07-25
申请号：US18410226
申请日：2024-01-11
发明人： Haruyuki AONO
IPC分类号： H01M8/0273 , H01M8/0258 , H01M8/1004 , H01M8/2483
CPC分类号： H01M8/0273 , H01M8/0258 , H01M8/1004 , H01M8/2483
摘要： A fuel cell stack includes stacked cells. Each cell includes a plastic support frame member that supports a membrane electrode assembly, and includes two separators that sandwich the support frame member. The support frame member and the two separators each have a through-hole that extends in a stacking direction of the cells and define a passage through which fluid flows. The support frame member includes a protrusion that protrudes from each separator in at least one of an outer edge of the support frame member and a peripheral edge of the through-hole. The protrusion is sandwiched by plastic frames in the stacking direction together with outer edges of the separators, peripheral edges of the through-holes of the separators, or both the outer edges and the peripheral edges.
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公开(公告)号：US20240250277A1
公开(公告)日：2024-07-25
申请号：US18410264
申请日：2024-01-11
发明人： Haruyuki AONO
IPC分类号： H01M8/026 , H01M8/0267
CPC分类号： H01M8/026 , H01M8/0267
摘要： A separator for a fuel cell includes multiple gas passages arranged side by side on a facing surface, and multiple cooling passages provided on a cooling surface. Each cooling passage is located between adjacent ones of the gas passages. The gas passages include multiple upstream passages arranged side by side, a merging portion, and a downstream passage that extends from the merging portion. The cooling surface includes a downstream end portion and a groove. The downstream end portion is a section in one of the cooling passages. The section is located between adjacent ones of the upstream passages and at an end portion of the cooling passage on a downstream side in a flow direction of the coolant. The groove connects the downstream end portion to another one of the cooling passages that is adjacent to the downstream end portion with one of the gas passages in between.
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公开(公告)号：US20240250276A1
公开(公告)日：2024-07-25
申请号：US18410247
申请日：2024-01-11
发明人： Haruyuki AONO
IPC分类号： H01M8/026 , H01M8/0267 , H01M8/2483
CPC分类号： H01M8/026 , H01M8/0267 , H01M8/2483
摘要： A separator for a fuel cell includes multiple main passages configured to face a power generating unit and allow reactant gas to flow through the main passages, a supply-side manifold hole configured to supply the reactant gas toward the main passages, a discharge-side manifold hole configured to discharge the reactant gas from the main passages, multiple supply-side connecting passages that connect the supply-side manifold hole and the main passages to each other, and multiple discharge-side connecting passages that connect the discharge-side manifold hole and the main passages to each other. At least one of the supply-side connecting passages and the discharge-side connecting passages has a protrusion that protrudes toward the power generating unit, the protrusion being partially provided in an extending direction of the connecting passage.
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公开(公告)号：US20230049976A1
公开(公告)日：2023-02-16
申请号：US17882084
申请日：2022-08-05
发明人： Haruyuki AONO , Satoshi KAWABE
IPC分类号： H01M8/026 , H01M8/0267
摘要： A separator for a fuel cell includes a facing surface configured to face a power generating unit of the fuel cell. Groove passages and ribs that protrude toward the power generating unit are provided on the facing surface. At least one of the ribs includes at least one recess in a center of the rib in an arrangement direction of the groove passages. The recess includes a bottom surface, which faces the power generating unit, and two inner side surfaces, which rise from opposite ends in the arrangement direction of the bottom surface. The two inner side surfaces are inclined such that a given point on each inner side surface separates further away from the bottom surface in the arrangement direction as that point approaches the power generating unit in a direction in which the power generating unit and the separator face each other.
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公开(公告)号：US20230411666A1
公开(公告)日：2023-12-21
申请号：US18210835
申请日：2023-06-16
发明人： Haruyuki AONO , Satoshi KAWABE , Takenori KOYANAGI
IPC分类号： H01M8/2483 , H01M8/04119
CPC分类号： H01M8/2483 , H01M8/04156 , H01M2008/1095
摘要： A fuel cell stack includes power generation cells stacked in a vertical direction and a discharge passage defining member extending in the vertical direction. Each of the power generation cells includes a gas hole. The gas holes of the power generation cells define a gas manifold which extends in the vertical direction and through which gas flows. Part of an upper wall surface of the gas manifold includes a water collection portion configured to collect water from the upper wall surface. The discharge passage defining member is located below the water collection portion of the gas manifold and defines a discharge passage out of which the water dropping from the water collection portion is discharged.
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公开(公告)号：US20230299309A1
公开(公告)日：2023-09-21
申请号：US18120509
申请日：2023-03-13
发明人： Haruyuki AONO , Satoshi KAWABE
IPC分类号： H01M8/026 , H01M8/1004 , H01M8/0284
CPC分类号： H01M8/026 , H01M8/0284 , H01M8/1004 , H01M2008/1095
摘要： A single cell for a fuel cell includes a power generating unit and two separators that hold the power generating unit in between. Each separator includes a facing surface, which faces the power generating unit. Each facing surface includes groove passages and ribs. Each of the ribs includes a top wall portion, two side wall portions, and corner portions. The top wall portion is in contact with the power generating unit. The side wall portions are located at the opposite sides of the top wall portion. Each corner portion is located between the top wall portion and one of the side wall portions. A restricting portion is provided at a section of each corner portion that faces the groove passage. The restricting portion restricts the gas diffusion layer from sinking into the groove passage. The restricting portion is a conductive porous body.
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公开(公告)号：US20230118637A1
公开(公告)日：2023-04-20
申请号：US17962107
申请日：2022-10-07
发明人： Haruyuki AONO , Satoshi KAWABE
IPC分类号： H01M8/026 , H01M8/0263 , H01M8/0273
摘要： A separator for a fuel cell includes a facing surface configured to face a power generating unit of the fuel cell. Groove passages are arranged side by side in the facing surface. Reactant gas flows through the groove passages. Ribs, which are located between the groove passages and protrude toward the power generating unit, are provided on the facing surface. At least one of the ribs includes at least one protrusion that protrudes toward the power generating unit.
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公开(公告)号：US20220384819A1
公开(公告)日：2022-12-01
申请号：US17751244
申请日：2022-05-23
发明人： Haruyuki AONO , Satoshi KAWABE
IPC分类号： H01M8/026 , H01M8/0267 , H01M8/0263
摘要： A separator for a fuel cell includes a contact surface configured to contact a power generating unit of the fuel cell. Groove passages are arranged side by side in the contact surface. Reactant gas flows through the groove passages. At least one of the groove passages includes a wavy section that extends in a wavy shape in planar directions of the contact surface. An upstream portion and a downstream portion in a flow direction of the reactant gas in each groove passage are defined as an upstream portion and a downstream portion, respectively. A wavelength of the wavy section is smaller in the downstream portion than in the upstream portion.
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公开(公告)号：US20240250275A1
公开(公告)日：2024-07-25
申请号：US18410214
申请日：2024-01-11
发明人： Haruyuki AONO
IPC分类号： H01M8/0254 , H01M8/2465
CPC分类号： H01M8/0254 , H01M8/2465
摘要： A fuel cell stack includes stacked cells. Each of the cells includes a plastic support frame that supports a membrane electrode assembly at a central portion of the support frame, and includes two separators that sandwich the support frame. The support frame and the two separators each have a through-hole that defines a passage through which fluid flows. An outer surface of each of the two separators in the stacking direction includes a rib. The rib protrudes from an outer edge of the separator and from a peripheral edge of the through-hole of the separator. A shape of the rib on one of the two separators is different from a shape of the rib on the other one of the two separators.
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