公开(公告)号：US20240396058A1

公开(公告)日：2024-11-28

申请号：US18694799

申请日：2022-09-21

Applicant: Ceres Intellectual Property Company Limited

Inventor： Christopher James Nobbs ,  Duncan Albert Wojciech Gawel ,  Zoltan Hercz

IPC: H01M8/0258 ,  C25B13/02 ,  C25B13/05 ,  H01M8/0206 ,  H01M8/0254 ,  H01M8/12 ,  H01M8/2483

Abstract: An electrochemical cell unit and stack includes a separator plate overlying a cell layer. The separator plate has a selectively shaped three-dimensional region that overlies at least part of an electrochemically active cell region. In that three-dimensional region the separator plate has been deformed into a first plurality of outwardly extending dimpled protrusions that define the height of a first fluid volume on a first side of the separator plate, and a second plurality of outwardly extending dimpled protrusions that define the height of a second fluid volume on a second side of the separator plate. A mid-plane region is disposed between the protrusions and the mid-plane region is so shaped as selectively to vary its height in at least one direction across the active cell region such that the interrelated respective heights of the first and second fluid volumes are correspondingly increased and decreased as a result.

公开(公告)号：US20240339632A1

公开(公告)日：2024-10-10

申请号：US18747955

申请日：2024-06-19

Applicant: EKPO FUEL CELL TECHNOLOGIES GMBH

Inventor： Andreas Schmid

IPC: H01M8/0206 ,  C25B11/032 ,  C25B13/02 ,  C25B13/05 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/026 ,  H01M8/1004

CPC classification number: H01M8/0206 ,  C25B11/032 ,  C25B13/02 ,  C25B13/05 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/026 ,  H01M8/1004

Abstract: In order to provide a method for manufacturing a bipolar plate layer for a bipolar plate of an electrochemical unit of an electrochemical device having the method steps of:



providing a starting material for the bipolar plate layer; and
shaping the starting material such that an edge web which borders a flow field of the bipolar plate layer is formed,
which is configured to be carried out simply and reliably even when large numbers of bipolar plate layers are to be manufactured,
it is proposed that the method comprises the following:
separating out gas passage openings from an edge web portion of the starting material, wherein after the gas passage openings have been separated out the edge web portion is shaped such that the edge web is formed from the edge web portion.

公开(公告)号：US20240088406A1

公开(公告)日：2024-03-14

申请号：US18261641

申请日：2022-01-14

Applicant: AFC ENERGY PLC

Inventor： Richard John CARTWRIGHT ,  Christopher Thomas REYNOLDS ,  Neill Devereux MAYNARD ,  Jody WHEELER

IPC: H01M8/0254 ,  B60L53/54 ,  B60L53/57 ,  H01M4/86 ,  H01M8/0228 ,  H01M8/0258 ,  H01M8/083

CPC classification number: H01M8/0254 ,  B60L53/54 ,  B60L53/57 ,  H01M4/8647 ,  H01M8/0228 ,  H01M8/0258 ,  H01M8/083

Abstract: An electrochemical cell (3) for use in a fuel cell stack (1) comprising a resilient electrical conduction member sub-assembly (10, 16) having a first flow plate (5, 9), a second flow plate (6, 8) and a bipolar plate (11, 22). A fluid chamber (17, 19) is created by the first flow plate (5, 9), the second flow plate (6, 8), the bipolar plate (11, 22) and an electrode (13, 18) and has an inflow duct (59, 63) and an outflow duct (61, 65). A resilient electrical conduction member (15, 20) is located within the fluid chamber (17, 19) so that in use, a fluid can flow between the inflow duct (59, 61) and the outflow duct (61, 65). The resilient electrical conduction member (15, 20) is in electrically conductive contact with the bipolar plate (11, 22) and with the electrode (13, 18) via a plurality of electrical contacts (51) and the resilient electrical conduction member (15, 20) is compressed between the bipolar plate (11, 22) and the electrode (13, 18).

公开(公告)号：US11923568B2

公开(公告)日：2024-03-05

申请号：US17663318

申请日：2022-05-13

Applicant: FORM ENERGY, INC.

Inventor： Joel Ryan Hayes ,  Ramkumar Krishnan ,  Todd Trimble ,  Clifford Anderson

IPC: H01M8/0254 ,  H01M4/66 ,  H01M4/74 ,  H01M4/78 ,  H01M8/0232 ,  H01M8/0245 ,  H01M8/18 ,  H01M12/08

CPC classification number: H01M8/0254 ,  H01M4/661 ,  H01M4/742 ,  H01M4/747 ,  H01M4/78 ,  H01M8/0232 ,  H01M8/0245 ,  H01M8/184 ,  H01M12/08

Abstract: A fuel electrode incorporates a first and second corrugated portion that are attached to each other at offset angles respect to their corrugation axis and therefore reinforce each other. A first corrugated portion may extend orthogonally with respect to a second corrugated portion. The first and second corrugated portions may be formed from metal wire and may therefore have a very high volumetric void fraction and a high surface area to volume ratio (sa/vol). In addition, the strands of the wire may be selected to enable high conductivity to the current collectors while maximizing the sa/vol. In addition, the shape of the corrugation, including the period distance, amplitude and geometry may be selected with respect to the stiffness requirements and electrochemical cell application factors. The first and second corrugated portions may be calendared or crushed to reduce thickness of the fuel electrode.

公开(公告)号：US11799096B2

公开(公告)日：2023-10-24

申请号：US17074908

申请日：2020-10-20

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yutaka Ebato ,  Satoru Terada

IPC: H01M8/00 ,  H01M8/0258 ,  H01M8/0232 ,  H01M8/04089 ,  H01M8/1004 ,  H01M8/04858 ,  H01M8/0273 ,  H01M8/0254 ,  H01M8/026

CPC classification number: H01M8/0258 ,  H01M8/0232 ,  H01M8/0254 ,  H01M8/0273 ,  H01M8/04089 ,  H01M8/0494 ,  H01M8/1004 ,  H01M8/026

Abstract: A power generation cell of a fuel cell stack includes a resin frame equipped MEA and a first metal separator and a second metal separator. In the power generation cell, the relationship of P1>P2>P3 is satisfied, where P1 indicates a first surface pressure applied from a first seal part and a second seal part to a resin frame member, P2 indicates a second surface pressure applied from a first support part and a second support part to the overlap part, and P3 indicates a third surface pressure applied from first flow field forming protrusions and second flow field forming protrusions to the power generation area.

公开(公告)号：US11742496B2

公开(公告)日：2023-08-29

申请号：US16517050

申请日：2019-07-19

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Chunchuan Xu ,  Zijie Lu ,  Jun Yang ,  Daniel E. Wilkosz ,  Shinichi Hirano

IPC: H01M8/0265 ,  H01M8/0254 ,  H01M8/0213 ,  H01M8/0206 ,  H01M8/0258 ,  H01M8/0223 ,  H01M8/0267

CPC classification number: H01M8/0265 ,  H01M8/0206 ,  H01M8/0213 ,  H01M8/0223 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/0267 ,  Y02E60/50

Abstract: A bipolar plate for a fuel cell includes an anode plate and a cathode plate. The anode plate has hydrogen flow channels on a first side of the anode plate and coolant channels on a second side of the anode plate. The cathode plate has a first side disposed against the second side of the anode plate to cover the coolant channels and has a second side defining a recessed pocket configured to receive a stream of air. A flow guide is disposed in the pocket such that an inlet manifold is formed along a first edge of the flow guide and an outlet manifold is formed along a second edge of the flow guide. The flow guide defines channels extending from the inlet manifold to the outlet manifold. A plurality of openings is defined by through the flow guide.

公开(公告)号：US11377738B2

公开(公告)日：2022-07-05

申请号：US16428113

申请日：2019-05-31

Applicant: Robert Bosch GmbH

Inventor： Soo Kim ,  Mordechai Kornbluth ,  Jonathan Mailoa ,  Lei Cheng ,  Georgy Samsonidze ,  Boris Kozinsky ,  Nathan Craig

IPC: H01M8/00 ,  C23C16/455 ,  H01M8/0254 ,  C23C16/40 ,  C23C16/34 ,  C23C18/12

Abstract: A method of applying a coating to a flow field plate of a fuel cell. The method includes applying a solution including a metal-containing precursor and a solvent to at least a portion of a surface of a flow field plate, and evaporating the solvent to form a coating on the at least the portion of the surface of the flow field plate.

公开(公告)号：US11374235B2

公开(公告)日：2022-06-28

申请号：US16696310

申请日：2019-11-26

Applicant: FuelCell Energy, Inc.

Inventor： Hossein Ghezel-Ayagh

IPC: H01M8/0254 ,  H01M8/026 ,  H01M8/2485 ,  H01M8/0276 ,  H01M8/0206 ,  H01M8/0215 ,  H01M8/14 ,  H01M8/0258

Abstract: An anode of a fuel cell has an anode current collector defining an inlet configured to receive fuel gas and an outlet configured to output the fuel gas, a barrier that divides an active area of the anode current collector into a first area and a second area, and a flow passage configured to allow a flow of fuel gas from the inlet through the first area and the second area to the outlet. An obstacle is located in the flow passage in an inactive area of the anode current collector and is configured to change a flow direction of the fuel gas in the flow passage from the first area to the second area to achieve intra-cell mixing of the fuel gas.

公开(公告)号：US20220149392A1

公开(公告)日：2022-05-12

申请号：US17310892

申请日：2020-02-27

Applicant: Reinz-Dichtungs-GmbH

Inventor： Claudia KUNZ ,  Bernd GAUGLER ,  Stephan WENZEL

IPC: H01M8/0254 ,  H01M8/0271 ,  H01M8/0206

Abstract: 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.

公开(公告)号：US11228040B2

公开(公告)日：2022-01-18

申请号：US16475222

申请日：2017-12-19

Applicant: Robert Bosch GmbH

Inventor： Alexander Eifert

IPC: H01M8/0206 ,  H01M8/0221 ,  H01M8/0228 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/241 ,  H01M8/2465 ,  H01M8/1018

Abstract: The invention relates to a gas distributor plate for a fuel cell, comprising a first distribution structure for distributing a fuel to a first electrode and a second distribution structure (60) for distributing an oxidation agent to a second electrode. According to the invention, there is at least one wire element (80) in at least one of the distribution structures (60). The invention further relates to a fuel cell, which comprises at least one membrane electrode unit having a first electrode and a second electrode, which are separated from each other by a membrane, and at least one gas distribution plate according to the invention.