公开(公告)号：US20230261236A1

公开(公告)日：2023-08-17

申请号：US18001858

申请日：2021-07-15

Applicant: VOLKSWAGEN AG ,  KRAFTWERK TUBES GMBH

Inventor： Sascha KÜHN ,  Lutz HEINRICH ,  Heiko TURNER ,  Dirk JENSSEN ,  Christian SCHLITZBERGER ,  Martin BUCHENBERGER ,  Friedhelm WALKLING ,  Florian MOLL ,  Steffen WIELAND ,  Christin ZIMMERMANN

IPC: H01M8/2475 ,  H01M8/04082

CPC classification number: H01M8/2475 ,  H01M8/04201 ,  H01M2008/1095

Abstract: A system includes a stack module box, within which is accommodated a fuel cell stack and which stack module box has at least one fuel cell, the fuel cell being in connection with a plurality of media guides leading to the stack module box and from which media can be delivered to the stack module box or received from the stack module box, wherein at least two of the media guides have electrically conductive regions for discharge of current from the fuel cell stack, and/or the wall of the stack module box is electrically conductive in the regions laying opposite to the media guides, and wherein connection lines are led away from the fuel cell stack to the electrically conductive regions and away therefrom. A fuel cell device and a fuel cell vehicle including such a stack module box are also provided.

公开(公告)号：US20230246207A1

公开(公告)日：2023-08-03

申请号：US18001809

申请日：2021-07-15

Applicant: VOLKSWAGEN AG ,  KRAFTWERK TUBES GMBH

Inventor： Sascha KÜHN ,  Lutz HEINRICH ,  Heiko TURNER ,  Dirk JENSSEN ,  Christian SCHLITZBERGER ,  Martin BUCHENBERGER ,  Friedhelm WALKLING ,  Florian MOLL ,  Steffen WIELAND ,  Christin ZIMMERMANN

IPC: H01M8/04007 ,  H01M8/248 ,  H01M8/2404

CPC classification number: H01M8/04074 ,  H01M8/248 ,  H01M8/2404 ,  H01M2250/20

Abstract: A fuel cell stack comprises at least one fuel cell which is accommodated in a stack module box, a plurality of media channels, having media guides which are arranged on the outside of the stack module box and are in flow connection with the media channels, and a tensioning system which is guided around the stack module box and the tensioning device of which is guided around the media guides, which are designed with a spring function. A related fuel cell device and a fuel cell vehicle are also provided.

公开(公告)号：US20220115678A1

公开(公告)日：2022-04-14

申请号：US17423759

申请日：2019-12-03

Applicant: AUDI AG ,  VOLKSWAGEN AG

Inventor： Rune STAECK ,  Felix ROTHE ,  Dirk JENSSEN ,  Martin BUCHENBERGER ,  Markus KÜHN ,  Jan BEUSCHER ,  Sven HARTWIG

IPC: H01M8/04119

Abstract: A humidifier module is provided having a water vapor-permeable membrane having spacers defining a flow field arranged on either side of the membrane and having a yarn stitched into the membrane. The spacers defining the flow field are formed by the yarn stitched into the membrane. A humidifier, a method for making a humidifier module and a method for making a humidifier are also provided.

公开(公告)号：US20230056281A1

公开(公告)日：2023-02-23

申请号：US17796601

申请日：2021-01-22

Applicant: AUDI AG ,  VOLKSWAGEN AG

Inventor： Dirk JENSSEN ,  Rune STAECK ,  Oliver BERGER

IPC: H01M8/0247

Abstract: A fuel cell comprises a polymer electrolyte membrane, an anode electrode being associated with said membrane on the first side thereof and a cathode electrode being associated with said membrane on the second side thereof, wherein a gas diffusion layer is associated with each of the electrodes on the side thereof that faces away from the polymer electrolyte membrane, and wherein a flow field plate having a flow field for distributing the reactants is associated with each of the gas diffusion layers on the side thereof that faces away from the polymer electrolyte membrane, characterized in that at least one conducting line formed from a hygroscopic and/or capillary-active material is provided for conducting water and thus for moistening the polymer electrolyte membrane.

公开(公告)号：US20170309926A1

公开(公告)日：2017-10-26

申请号：US15507728

申请日：2015-07-24

Applicant: VOLKSWAGEN AG

Inventor： Dirk JENSSEN ,  Christian Martin ZILLICH

IPC: H01M8/0228 ,  C23C4/10 ,  H01M8/026 ,  H01M8/04119 ,  H01M8/04223 ,  H01M8/1018

Abstract: The invention concerns a fuel cell (100), comprising a stack (1) of alternating bipolar plates (113) and membrane electrode assemblies (114) as well as flow channels (104, 105) that are designed between a bipolar plate (113) and a membrane electrode assembly (114) and flow channels (104, 105) that are designed within a bipolar plate (113) as well as a motor vehicle with such a fuel cell. Provision is made that a surface (101) of at least a part of the flow channels (104, 105) that is overflowable by a fluid has, regarding its direction of extension at least in part a hydrophobic segment (101a) and a hydrophilic segment (101b) with regard to a cross-section of the flow channel (104, 105).

公开(公告)号：US20210066732A1

公开(公告)日：2021-03-04

申请号：US16962194

申请日：2019-01-11

Applicant: AUDI AG ,  VOLKSWAGEN AG

Inventor： Dirk JENSSEN ,  Christian LUCAS

IPC: H01M8/04089 ,  H01M8/04111 ,  H01M8/04223 ,  H01M8/04302 ,  H01M8/2484

Abstract: A fuel cell system includes at least one membrane electrode assembly arranged in a housing, a cathode supply having a compressor, and a device for housing ventilation, the device for housing ventilation having a medium pressure tap associated with the compressor. Such a fuel cell system may be used to perform a method for cathode recirculation.

公开(公告)号：US20180233764A1

公开(公告)日：2018-08-16

申请号：US15751420

申请日：2016-08-10

Applicant: Volkswagen AG ,  Audi AG

Inventor： Jan-Philipp BRINKMEIER ,  Dirk JENSSEN

IPC: H01M8/24 ,  H01M8/04828 ,  H01M8/0258 ,  B60L11/18

Abstract: The invention relates to a fuel cell stack having at least two segments of individual fuel cells arranged in parallel in terms of fluid, said segments being arranged in series relative to one another in terms of fluid. It is provided that the fuel cell stack is set up to vary the number of individual fuel cells in at least one segment.