公开(公告)号：US20250116714A1

公开(公告)日：2025-04-10

申请号：US18833219

申请日：2023-02-06

Applicant: Stefan MUNTHE ,  Johan FLINK ,  Robin VELÉN ,  POWERCELL SWEDEN AB

Inventor： Stefan MUNTHE ,  Johan FLINK ,  Robin VELÉN

IPC: G01R31/385 ,  H01M8/04537

Abstract: Disclosed is an electric cell stack comprising a plurality of electric plates sandwiching insulation layers, wherein at least one of the plurality of electric plates a voltage monitoring element for monitoring a voltage of said electric plate is arranged, wherein said at least one electric plate at which the electric voltage monitoring element is arranged has at least one through hole, wherein at and/or in the through hole the voltage monitoring element is arranged.

公开(公告)号：US20250112258A1

公开(公告)日：2025-04-03

申请号：US18833816

申请日：2023-02-06

Applicant: POWERCELL SWEDEN AB

Inventor： Bengt STENEBY

IPC: H01M8/2483 ,  H01M8/0258 ,  H01M8/2484

Abstract: A fuel cell stack is provided, which comprises at least a plurality of unit fuel cells, wherein each unit fuel cell comprises a bipolar plate and a membrane electrode assembly, which are stacked such that two bipolar plates sandwich a multi-layer membrane electrode assembly in a stacking direction. Each bipolar plate and/or membrane electrode assembly comprises at least one reactant inlet manifold and at least one reactant outlet manifold, wherein the manifolds form respective tubelike channel inlets and channel outlets. The channel inlets and channel outlets extend through the fuel cell stack for providing a reactant stream to and from the fuel cell stack, wherein the plurality of unit fuel cells is sandwiched by a cover plate and a feeding plate. The cover plate is configured to cover the fuel cell stack, wherein at least one turbulence element is arranged in the stream of reactant.

公开(公告)号：US20180375144A1

公开(公告)日：2018-12-27

申请号：US16062507

申请日：2016-12-22

Applicant: POWERCELL SWEDEN AB

Inventor： Thomas TINGELÖF

IPC: H01M8/2475 ,  H01M8/1004 ,  H01M8/248 ,  H01M8/0202

Abstract: Fuel cell stack housing including at least a bottom section and a first and a second side wall, which are spaced apart by the bottom section, wherein the housing is adapted to house a fuel cell stack and includes at least one fastening element, which is engaged with the first and the second side wall, wherein at least the first side wall of the housing has a flat section and an arched section extending in direction of the second side wall, and wherein a maximum possible distance between the arched section and the bottom portion defines an inner height of the fuel cell stack housing, where in the inner height of the fuel cell stack housing is adjustable, as well as a fuel cell stack assembly including a fuel cell stack encased by such a housing.

公开(公告)号：US20250105312A1

公开(公告)日：2025-03-27

申请号：US18832846

申请日：2023-02-06

Applicant: Stefan MUNTHE ,  Johan FLINK ,  Robin VELÉN ,  POWERCELL SWEDEN AB

Inventor： Stefan MUNTHE ,  Johan FLINK ,  Robin VELÉN

IPC: H01M8/0256 ,  H01M8/1004 ,  H01M8/2465

Abstract: Disclosed is an electric cell stack comprising at least a plurality of electric plates and a plurality of insulating layers, wherein the stack of the plurality of electric plates and insulating layers are alternatingly stacked in such a way that the electric plates are separated by insulating layers, and the electric plates and/or the insulating layers are aligned to each other, wherein each electric plate has a first alignment through hole and a second alignment through hole, wherein at and/or in the alignment through holes inner alignment elements are provided for aligning the electric plates and the insulating layers, wherein each inner alignment element has a base plate and an adjusting portion protruding from the base plate, wherein the adjusting portion of one alignment element extends through at least a first electric plate, a first insulating layer, a second electric plate and a second insulating layer.

公开(公告)号：US20210249680A1

公开(公告)日：2021-08-12

申请号：US17251243

申请日：2019-06-18

Applicant: POWERCELL SWEDEN AB

Inventor： Stefan MUNTHE

IPC: H01M8/2404 ,  H01M8/249 ,  H01M8/0297 ,  H01M8/1004 ,  H01M8/0247

Abstract: A manufacturing arrangement for a fuel cell stack includes at least a first alignment station having a first alignment structure for receiving a bipolar plate and a second alignment structure for arranging a membrane electrode assembly at one side of the bipolar plate, preferably on top of the bipolar plate, in a predefined orientation for aligning the bipolar plate and the membrane electrode assembly, whereby a pre-assembled fuel cell unit is provided; a fastening station for fastening the membrane electrode assembly to the bipolar plate, whereby an assembled fuel cell unit is provided; and a second alignment station haying at least one third alignment structure for aligning the assembled fuel cell units for providing a fuel cell stack, as well as a method for manufacturing a fuel cell stack, and a fuel cell stack having been manufactured by such an arrangement and/or method.

公开(公告)号：US10707498B2

公开(公告)日：2020-07-07

申请号：US15562431

申请日：2016-03-17

Applicant: POWERCELL SWEDEN AB

Inventor： Martin Berggren ,  Robert Gustavsson

IPC: H01M8/0247 ,  H01M8/2404 ,  H01M2/20 ,  H01M8/02 ,  H01M8/0271 ,  H01M8/04 ,  H01M8/24 ,  H01M8/2465

Abstract: Electric connector assembly for electrically contacting at least one bipolar plate of a fuel cell stack including at least a support structure and at least one contact pin, which is adapted to electrically contacting the bipolar plate and is supported by the support structure, wherein the support structure includes at least a rear face which is adapted to face the fuel cell stack, a front face being opposite to the rear face, and first and second side faces, wherein the rear face includes at least one bipolar plate housing slit which extends from the first side face to the second side face, and which is adapted to accommodate at least partly the bipolar plate, thereby defining a comb-shaped support structure with at least two teeth extend from a support basis, which are separated by the intermediately arranged bipolar plate housing slit, and wherein the support structure further includes at least one contact pin accommodation opening having a size which is adapted to accommodate the contact pin.

公开(公告)号：US20220093951A1

公开(公告)日：2022-03-24

申请号：US17423931

申请日：2019-11-18

Applicant: POWERCELL SWEDEN AB

Inventor： Robin VELÉN ,  Stefan Munthe

IPC: H01M8/1004 ,  H01M8/0247 ,  H01M8/0271

Abstract: A fuel cell stack includes a plurality of bipolar plates wherein each bipolar plate has at least an anode plate and a cathode plate, and a plurality of membrane electrode assemblies being sandwiched by the bipolar plates, wherein each membrane electrode assembly has at least an anode and a cathode which are separated by a membrane, wherein the bipolar plates sandwich the membrane electrode assembly in such a way that the anode of the membrane electrode assembly faces the anode plate of a first bipolar plate and the cathode of the same membrane electrode assembly faces the cathode plate of a second bipolar plate; and wherein a cell pitch of the fuel cell stack is defined by a distance of two adjacent membrane electrode assemblies, wherein at borders of the bipolar plates of the fuel cell stack, an overall distance between the anode plate of the first bipolar plate and the cathode plate of the second bipolar plate, which is measured over the sandwiched membrane electrode assembly, is equal to the cell pitch of the fuel cell stack.

公开(公告)号：US20210249669A1

公开(公告)日：2021-08-12

申请号：US17251246

申请日：2019-06-18

Applicant: Stefan MUNTHE ,  POWERCELL SWEDEN AB

Inventor： Stefan MUNTHE

IPC: H01M8/0297 ,  H01M8/241 ,  H01M8/2404 ,  H01M8/1004

Abstract: A membrane electrode assembly for a fuel cell stack includes at least a cathode, an anode and a membrane therebetween, wherein the membrane electrode assembly further has a basic shape which substantially resembles the shape of a bipolar plate of a fuel cell unit onto which the membrane electrode assembly is intended to be placed, wherein the membrane electrode assembly further includes at least one distinctive alignment projection, which protrudes from a circumference of the basic shape and wherein the distinctive alignment projection has a size and/or shape which is adapted to be contacted by an alignment tool for aligning the membrane electrode assembly in the fuel cell stack, as well as a fuel cell stack including such a membrane electrode assembly and an alignment tool or fuel cell stack housing for aligning and/or housing such a fuel cells stack.

公开(公告)号：US10464027B2

公开(公告)日：2019-11-05

申请号：US15528754

申请日：2015-12-02

Applicant: POWERCELL SWEDEN AB

Inventor： Per Ekdunge ,  Federico Ghirelli ,  Ida Toftefors

IPC: B01F5/04 ,  B01F5/06 ,  B01F3/02 ,  B01J8/00 ,  B01J8/02 ,  C01B3/58

Abstract: A carbon monoxide oxidation device for oxidizing carbon monoxide contained in a hydrogen rich reformat gas includes a gas stream perturbation device designed as at least one propeller-shaped plate with a plate portion having a surface facing the gas stream and at least one blade which is connected to the plate portion and has a leading edge and an effluent edge, wherein a surface defined between leading edge and effluent edge is inclined in relation to the surface of the plate portion with a predetermined blade inclination angle, thereby defining at least one opening in the plate.

公开(公告)号：US20190099727A1

公开(公告)日：2019-04-04

申请号：US15528754

申请日：2015-12-02

Applicant: POWERCELL SWEDEN AB

Inventor： Per EKDUNGE ,  Federico GHIRELLI ,  Ida TOFTEFORS

IPC: B01F5/04 ,  B01F5/06 ,  B01F3/02 ,  B01J8/00 ,  B01J8/02 ,  C01B3/58

CPC classification number: B01F5/0473 ,  B01F3/02 ,  B01F5/0616 ,  B01F5/0617 ,  B01F2005/0637 ,  B01J8/008 ,  B01J8/0221 ,  B01J8/0278 ,  B01J2208/00849 ,  B01J2208/00938 ,  C01B3/583 ,  C01B2203/044 ,  C01B2203/047

Abstract: A carbon monoxide oxidation device for oxidizing carbon monoxide contained in a hydrogen rich reformat gas includes a housing, wherein the housing incorporates an oxidation catalyst, which is adapted to oxidize the carbon monoxide of the reformat gas by an oxidizing agent to carbon dioxide, includes upstream of the catalyst at least one gas inlet for providing a gas stream of at least the reformat gas into the housing, includes downstream of the catalyst a gas outlet for exiting treated gas from the housing, and incorporates a gas stream perturbation device which is arranged upstream of the catalyst and which is adapted to provide a perturbation in the gas stream, wherein the gas stream perturbation device is designed as at least one propeller-shaped plate with a plate portion having a surface facing the gas stream and at least one blade which is connected to the plate portion and has a leading edge and an effluent edge, wherein a surface defined between leading edge and effluent edge is inclined in relation to the surface of the plate portion with a predetermined blade inclination angle, thereby defining at least one opening in the plate.