公开(公告)号：US20220029186A1

公开(公告)日：2022-01-27

申请号：US17299848

申请日：2019-12-03

Applicant: Widex A/S

Inventor： Torsten LUND-OLESEN ,  Kasper VESTENTOFT ,  Oskar TYNELIUS ,  Jacob Lindner BONDE ,  Jan Harry HALES ,  Leif Hojslet CHRISTENSEN

IPC: H01M8/1011 ,  H01M8/04186 ,  H01M8/04082

Abstract: The present invention relates to a direct alcohol fuel cell comprising a housing containing a proton exchange membrane (PEM) separating an anode section from a cathode section, which anode section and which cathode section are contained in the housing, the cathode section comprising a cathode collection element electrically connected to a cathode catalyst, which cathode catalyst is in diffusive communication with a gaseous oxidant, and the anode section comprising an anode collection element electrically connected to an anode catalyst, and a pervaporation membrane located at a spacing distance from the PEM, which pervaporation membrane provides diffusive communication between the anode catalyst and a fuel supply, wherein the housing comprises one or more venting holes providing fluid communication between the anode section and the ambient environment, which venting hole has or which venting holes have a largest dimension in the range of 25 μm to 300 μm, the venting hole being located within the spacing distance. The fuel cell is suited for a microelectronic device.

公开(公告)号：US20220021013A1

公开(公告)日：2022-01-20

申请号：US17311018

申请日：2019-12-03

Applicant: Widex A/S

Inventor： Torsten LUND-OLESEN ,  Kasper VESTENTOFT ,  Oskar TYNELIUS ,  Jacob Lindner BONDE ,  Jan Harry HALES ,  Leif Hojslet CHRISTENSEN

IPC: H01M8/1011 ,  H01M4/94

Abstract: A direct alcohol fuel cell having a proton exchange membrane (PEM) separating an anode section from a cathode section, which cathode section contains a cathode collection element electrically connected to a cathode catalyst, the cathode catalyst being in diffusive communication with a gaseous oxidant, and which anode section comprises an anode collection element electrically connected to an anode catalyst. The anode catalyst is in diffusive communication with a fuel supply. The PEM is structured to have a bottom and walls extending from the bottom to a containment distance into the cathode section, and the cathode catalyst is located within the containment distance from the bottom. The fuel cell is suited for a microelectronic device.

公开(公告)号：US20220029187A1

公开(公告)日：2022-01-27

申请号：US17299032

申请日：2019-12-03

Applicant: WIDEX A/S

Inventor： Torsten LUND-OLESEN ,  Boris VALNERT ,  Kasper VESTENTOFT ,  Oskar TYNELIUS ,  Jacob Lindner BONDE ,  Jan Harry HALES ,  Leif Hoejslet CHRISTENSEN

IPC: H01M8/1011 ,  H01M8/0662

Abstract: The present invention relates to a direct alcohol fuel cell comprising a housing containing a proton exchange membrane (PEM) separating an anode section from a cathode section, which anode section and which cathode section are contained in the housing, the cathode section comprising a cathode collection element having one or more ventilation holes, which cathode collection element is electrically connected to a cathode catalyst, which cathode catalyst is in diffusive communication with a gaseous oxidant, and the anode section comprising an anode collection element electrically connected to an anode catalyst, the DAFC comprising an oleophobic filter covering the ventilation hole(s). The oleophobic filter may be held in place using any appropriate means as desired. The fuel cell is suited for a microelectronic device.

公开(公告)号：US20210359314A1

公开(公告)日：2021-11-18

申请号：US17299822

申请日：2019-12-03

Applicant: Widex A/S

Inventor： Torsten LUND-OLESEN ,  Kasper VESTENTOFT ,  Oskar TYNELIUS ,  Jacob Lindner BONDE ,  Jan Harry HALES ,  Leif Hojslet CHRISTENSEN

IPC: H01M8/04186 ,  H01M8/04082 ,  H01M8/1011 ,  H01M8/0206 ,  H01M8/0221 ,  H01M8/0228

Abstract: A direct alcohol fuel cell having an inner housing, and a proton exchange membrane separating an anode section from a cathode section. The anode section contains an anode collection element electrically connected to an anode catalyst that is in diffusive communication with a fuel supply. The cathode section contains a cathode collection element having one or more ventilation holes is electrically connected to a cathode catalyst. An oleophobic filter and/or an anion-exchange membrane is provided, which cathode catalyst via the one or more ventilation holes and the oleophobic filter and/or the anion-exchange membrane is in diffusive communication with a gaseous oxidant. The inner housing has a bottom and walls extending from the bottom to contain the anode section, the PEM and the cathode section, the bottom and/or the walls having holes allowing fluid communication from a fuel supply to the anode section. The fuel cell is suited for microelectronic devices.