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1. 发明公开

US20240247384A1 GAS DIFFUSION LAYER FOR AN ELECTROCHEMICAL CELL AND ELECTROCHEMICAL CELL 审中-公开
公开(公告)号：US20240247384A1
公开(公告)日：2024-07-25
申请号：US18564195
申请日：2022-03-23
申请人： Siemens Energy Global GmbH & Co. KG
发明人： Simon Kießlich , Alexander Spies
IPC分类号： C25B11/032 , C25B11/036 , H01M8/0232 , H01M8/0254 , H01M8/0258
CPC分类号： C25B11/032 , C25B11/036 , H01M8/0232 , H01M8/0254 , H01M8/0258
摘要： The invention relates to a gas diffusion layer for an electrochemical cell, having a contacting unit and a metal unit which is arranged at or on the contacting unit. With respect to a main surface with a defined thickness (d), the metal unit has a plurality of projections which are substantially perpendicular to the main surface. At least one opening is formed on at least one side surface or top surface of the plurality of projections of the metal unit. Each elongation of the plurality of projections is at least three times the thickness (d) of the metal unit.

2. 发明公开

US20230411643A1 METHODS AND SYSTEM FOR MANUFACTURING A REDOX FLOW BATTERY SYSTEM BY ROLL-TO-ROLL PROCESSING 审中-公开
公开(公告)号：US20230411643A1
公开(公告)日：2023-12-21
申请号：US18458905
申请日：2023-08-30
申请人： ESS TECH, INC.
发明人： Yang Song , Craig E. Evans
IPC分类号： H01M8/0254 , H01M8/18 , H01M8/0215 , H01M8/0221 , H01M8/0226
CPC分类号： H01M8/0254 , H01M8/188 , H01M8/0215 , H01M8/0221 , H01M8/0226
摘要： Methods and systems are provided for manufacturing a membrane separator for a redox flow battery. In one example, the membrane separator is fabricate by a calendering process. The membrane separator may be configured with a polymer network to provide selectivity for ion transport across the membrane separator. The membrane separator may be further adapted with an integrated spacer in contact with a negative electrolyte.

3. 发明公开

US20230402620A1 BIPOLAR PLATE FOR A FUEL CELL SYSTEM 审中-公开
公开(公告)号：US20230402620A1
公开(公告)日：2023-12-14
申请号：US18249599
申请日：2021-10-14
申请人： Robert Bosch GmbH
发明人： Leonore Glanz , Manuel Schneiter
IPC分类号： H01M8/0258 , H01M8/0254
CPC分类号： H01M8/0258 , H01M8/0254
摘要： The invention relates to a bipolar plate (100) for a fuel cell system (1), having: a cathode-side plate (10), which on a first side (11) has a first channel structure (K1) for an oxygen-containing reactant (O2) and

on a second side (12) has a second channel structure (K2) for a coolant (KM), and an anode-side plate (20),
which on a first side (21) has a first channel structure (A1) for a fuel-containing reactant (H2) and on a second side (22) has a second channel structure (A2) for a coolant (KM), the cathode-side plate (10) and the anode-side plate (20) bearing against one another by means of the second sides (12, 22) for the coolant (KM). To this end, in accordance with the invention, the first channel structure (K1) of the cathode-side plate (10) differs geometrically from the second channel structure (K2) of the cathode-side plate (10).

4. 发明授权

US11811103B2 Separator plate for an electrochemical system 有权
公开(公告)号：US11811103B2
公开(公告)日：2023-11-07
申请号：US17310892
申请日：2020-02-27
申请人： Reinz-Dichtungs-GmbH
发明人： Claudia Kunz , Bernd Gaugler , Stephan Wenzel
IPC分类号： H01M8/0254 , H01M8/0206 , H01M8/0271
CPC分类号： H01M8/0254 , H01M8/0206 , H01M8/0271
摘要： A separator plate for an electrochemical system, comprising: at least one of the flanks of the bead assembly has a multiplicity of passages for directing a medium through the bead flank, and a distributing or collecting structure has a multiplicity of line ducts and a multiplicity of openings, wherein the line ducts adjoin the passages in the bead flank on an external side of the bead assembly, wherein the openings are disposed on a side of the distributing or collecting structure that faces away from the bead assembly and, are fluidically connected to a bead interior.

5. 发明授权

US11688860B2 Fluid flow plate for a fuel cell 有权
公开(公告)号：US11688860B2
公开(公告)日：2023-06-27
申请号：US16743735
申请日：2020-01-15
申请人： INTELLIGENT ENERGY LIMITED
发明人： Peter David Hood , Paul Leonard Adcock
IPC分类号： H01M8/0258 , H01M8/0263 , H01M8/2483 , H01M8/0267 , H01M8/0206 , H01M8/0254
CPC分类号： H01M8/0258 , H01M8/0263 , H01M8/0267 , H01M8/2483 , H01M8/0206 , H01M8/0254
摘要： A fluid flow plate for an electrochemical fuel cell assembly comprises a first plurality of fluid flow channels extending across an area of the flow plate to define a flow field of the fluid flow plate. An array of first fluid transfer points is disposed along an edge of the flow field for communicating fluid into or out of the fluid flow channels. A gallery has a first peripheral edge portion bounded by the array of first fluid transfer points and at least two second peripheral edge portions each bounded by an array of second fluid transfer points disposed along fluid access edges of the fluid flow plate. The at least two second peripheral edge portions are disposed at oblique angles to the first peripheral edge portion such that the total length of the any of second fluid transfer points is at least as long as, and preferably longer than, the length of the array of first fluid transfer points. Disposing the at least two second peripheral edge portions at oblique angles to the first peripheral edge portion enables the lengths of the second peripheral edge portions of each gallery to be increased compared to the length of the first fluid transfer points (i.e. width of the active flow field area) which optimizes fluid distribution into the channels of the flow plate.

6. 发明授权

US10629919B2 Separating plate, method for manufacturing same, and fuel cell stack comprising same 有权
公开(公告)号：US10629919B2
公开(公告)日：2020-04-21
申请号：US15580034
申请日：2016-06-30
申请人： LG CHEM, LTD.
发明人： Hye Mi Jung , Jae Choon Yang , Jee Hoon Jeong , Chang Sun Kong
IPC分类号： H01M8/0258 , H01M8/026 , H01M8/0254 , H01M8/2465 , H01M8/0206 , H01M8/1018 , H01M8/0213
CPC分类号： H01M8/0258 , H01M8/026 , H01M8/0254 , H01M8/2465 , H01M8/0206 , H01M8/0213 , H01M2008/1095 , Y02P70/56
摘要： The present invention relates to a separating plate, a method for manufacturing the same, and a fuel cell stack comprising the same. An aspect of the present invention provides a separating plate comprising: a plurality of channels extending in elongated shapes along a first direction, respectively; and a plurality of riblet elements provided to connect side walls of two adjacent channels along a second direction, which is perpendicular to the first direction, wherein the plurality of riblet elements, which connect side walls of two adjacent channels, are spaced by a predetermined interval along the first direction, and a separating plate, which is provided with a first opening, is provided between two riblet elements, which are adjacent to each other along the first direction.

7. 发明申请

US20190245219A1 SEPARATOR, AND FUEL CELL STACK COMPRISING THE SAME 审中-公开
公开(公告)号：US20190245219A1
公开(公告)日：2019-08-08
申请号：US16320156
申请日：2017-07-24
申请人： LG CHEM, LTD.
发明人： Hye Mi JUNG , Jae Choon YANG , Kyung Mun KANG , Sueng Hoon HAN
IPC分类号： H01M8/0254 , H01M4/88 , H01M8/0258
CPC分类号： H01M8/0254 , H01M4/8807 , H01M8/023 , H01M8/0256 , H01M8/0258 , H01M8/10 , H01M8/1004 , H01M8/1018 , H01M8/2457 , Y02E60/521
摘要： A separator and a fuel cell stack, the separator including a plurality of convex portions and a plurality of concave portions which are sequentially provided along a first direction, the convex portions having first openings on top surfaces at predetermined intervals along a second direction orthogonal to the first direction and the first openings of two adjacent convex portions are each provided so as not to be positioned coaxially based on a virtual first line parallel to the first direction.

8. 发明申请

US20180269495A1 METHOD OF PRODUCING A METALLIC INTERCONNECTOR FOR A FUEL CELL STACK AND A METALLIC INTERCONNECTOR PRODUCED BY THE METHOD 审中-公开
公开(公告)号：US20180269495A1
公开(公告)日：2018-09-20
申请号：US15910049
申请日：2018-03-02
申请人： Hexis AG
发明人： Andreas MAI , Roland DENZLER , Fleischhauer FELIX
IPC分类号： H01M8/026 , H01M8/0208 , B21D13/10
CPC分类号： H01M8/026 , B21D13/10 , H01M8/0206 , H01M8/0208 , H01M8/021 , H01M8/0254 , H01M8/0258 , H01M2008/1293
摘要： A method for producing a metallic interconnector for a fuel cell stack, including an air guiding surface with a first gas distributor structure and a fuel gas guiding surface with a second gas distributor structure, the first gas distributor structure and the second gas distributor structure each formed by grooves and webs, includes providing a sheet metal blank, forming the sheet metal blank by a plastic molding process, the first gas distributor structure and the second gas distributor structure being formed in such a manner that the grooves and webs of the first gas distributor structure are arranged complementary to the grooves and webs of the second gas distributor structure at a predeterminable percentage of area of the air guiding surface and the fuel gas guiding surface of at least 50% and at most 99%.

9. 发明授权

US10020520B2 Bipolar plate and fuel cell comprising a bipolar plate of this type 有权
公开(公告)号：US10020520B2
公开(公告)日：2018-07-10
申请号：US15543958
申请日：2015-12-15
申请人： VOLKSWAGEN AG
发明人： Matej Kusy , Ian Stewart , Brian Dickson
IPC分类号： H01M8/0254 , H01M8/0256 , H01M8/0265 , H01M8/0267
CPC分类号： H01M8/0265 , H01M8/0254 , H01M8/0256 , H01M8/0258 , H01M8/0267
摘要： The invention relates to a bipolar plate (10) for a fuel cell (100), comprising—an internal coolant flow field (33), which comprises a coolant channel (43), and—a first and a second flat side (11, 12) with a first and second reactant flow field (31, 32) respectively, which has at least one first and second channel structure (41, 42) respectively, wherein—the first and the second channel structure (41, 42) each form a trunk channel (44) and branch channels (46), wherein the branch channels (46) branch off in a branching region (48) from the respective trunk channel (44), and a first intermediate region (51) is formed between the branch channels (46) of the first channel structure (31), and a second intermediate region (52) is formed between the branch channels (46) of the second channel structure (32), wherein normal projections of the first and second intermediate region (51, 52) onto a center plane (56) of the bipolar plate (10), which center plane is arranged between the two flat sides (11, 12) of the bipolar plate (10), partially overlap so that an overlapping region (53) is formed. It is provided that the coolant channel (43) extends from an outer region (54), which is located outside the first and second intermediate region (51, 52), into the overlapping region (53), crossing a transit region (55) in the process, wherein the transit region (55) is a subregion of the normal projection of the first intermediate region (51) onto the center plane, which projects from the overlapping region (53).

10. 发明授权

US09985301B2 Fuel cell assembly 有权
公开(公告)号：US09985301B2
公开(公告)日：2018-05-29
申请号：US14345918
申请日：2012-09-20
申请人： INTELLIGENT ENERGY LIMITED
发明人： Jonathan Cole , Christopher James Kirk , Christopher Conlon , Peter David Hood
IPC分类号： H01M8/02 , H01M8/0273 , H01M8/026 , H01M8/0254 , H01M8/0271 , H01M8/0276 , H01M8/021 , H01M8/0228 , H01M8/1018
CPC分类号： H01M8/0273 , H01M8/021 , H01M8/0228 , H01M8/0254 , H01M8/026 , H01M8/0271 , H01M8/0276 , H01M2008/1095 , H01M2300/0065
摘要： The invention relates to fuel cell assemblies, and in particular to improvements relating to sealing of such assemblies, embodiments of which include a fuel cell assembly (200) comprising a membrane electrode assembly (104), a cathode separator plate (208) having a series of corrugations extending, and providing air flow paths, between first and second opposing edges of the plate, a gasket (105) providing a fluid seal around a peripheral edge of the membrane electrode assembly (104) between the separator plate (208) and the membrane electrode assembly (104) and a metal shim (107) disposed between the gasket (105) and the separator plate (208) over the peripheral edge of the membrane electrode assembly (104).

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