SOLID OXIDE ELECTROLYSIS CELL AND CELL ASSEMBLY INCLUDING THE SAME

    公开(公告)号:US20250051932A1

    公开(公告)日:2025-02-13

    申请号:US18277282

    申请日:2023-07-27

    Abstract: A solid oxide electrolysis cell according to an embodiment includes a solid oxide electrolysis cell including a unit including: a first unit cell including a first fuel electrode, a first electrolyte layer including a solid oxide, and a first air electrode; a second unit cell disposed to be spaced apart from the first unit cell, and including a second fuel electrode, a second electrolyte layer, and a second air electrode; a first porous conductive layer disposed between the first unit cell and the second unit cell; and a separator disposed outside of the unit and having a passage. The second unit cell is disposed on the first unit cell, a stacking order of the first fuel electrode, and the first electrolyte layer, and the first air electrode of the first unit cell is mirror symmetrical to a stacking order of the second fuel electrode, the second electrolyte layer, and the second air electrode of the second unit cell in a stacking direction.

    Use of a textile, zero-gap electrolytic cell and production method therefor

    公开(公告)号:US12195862B2

    公开(公告)日:2025-01-14

    申请号:US17782892

    申请日:2020-11-23

    Abstract: A textile can be configured as a spacer between a housing or a supporting structure and an electrode or a substructure of an electrode of a zero-gap electrolytic cell. The textile may comprise a mechanical connection means composed of an elastic polymeric material and may comprise an electrical connection means different from the mechanical connection means. A zero-gap electrolytic cell can be furnished with such a textile. Further, a method for producing such a zero-gap electrolytic cell may be characterized in that at least one ply of a textile is placed into an anode tank or cathode tank, an anode or cathode electrode is disposed on the at least one ply of the textile, an ion exchange membrane is placed onto this electrode, and a cathode electrode or anode electrode connected to a cathode tank or anode tank, respectively, is disposed on the ion exchange membrane.

    Supply circuit for electrolytic cell comprising a short-circuit device and a disconnector

    公开(公告)号:US12168832B2

    公开(公告)日:2024-12-17

    申请号:US17761333

    申请日:2020-09-17

    Applicant: AMC

    Inventor: Michel Pillet

    Abstract: A circuit for supplying electrical power at a rated direct current of 20-100 kA to an electrolysis cell is provided. The circuit comprises an upstream and a downstream busbar connected to each other with a short-circuiting device which, when closed by an actuating mechanism, allows the busbars to be electrically connected to each other. An anode bar is equipped with an anode connection interface and a cathode connection interface, for connection to the anode and cathode, respectively. The cathode connection interface is connected to the downstream busbar. The circuit comprises means for absorbing movement of elements of the circuit due to thermal expansion. A disconnector connected to the upstream busbar and to the anode bar is opened by an actuating mechanism and it electrically disconnects the upstream busbar and the anode bar from each other after a non-zero time interval Tm when the short-circuiting device has been closed.

    ARRANGEMENT AND METHOD FOR ELECTROLYSIS POWER CONVERSION

    公开(公告)号:US20240309521A1

    公开(公告)日:2024-09-19

    申请号:US18576265

    申请日:2021-07-21

    Applicant: CONVION OY

    Inventor: Kim ÅSTRÖM

    Abstract: A system for electrolysis power conversion includes electrolyser cells arranged as controllable series connected cell groups, a unit for electrolysis operation at a first voltage in the range of 1.0-2.5V per cell and a unit for at least intermittently drawing current from the cell groups at a second voltage at 0.4-1.0V per cell. The system includes at least one capacitor bank maintained at the first voltage and a capacitor bank maintained at the second voltage, the capacitor banks and cell groups having one pole in common and a bidirectional non-isolating DC/DC converter for connecting the first and second voltage capacitor banks. The system further includes a controller for the first and second voltages levels and a half-bridge switch pair for each controllable cell group for individually alternating between the first and second voltage levels being applied to the cell groups to prevent escalating unbalances and cell degradation.

    Control of Variable Power Source-Coupled Electrolysers

    公开(公告)号:US20240183048A1

    公开(公告)日:2024-06-06

    申请号:US18530980

    申请日:2023-12-06

    CPC classification number: C25B15/023 C25B1/04 C25B9/65

    Abstract: There is provided a water electrolysis system for hydrogen generation, wherein an electrolyser is coupled to a variable power source through a control device. The control device is configured to control at least one operating parameter of the electrolyser to increase its lifetime. The at least one operating parameter includes an electrical operating point (state) of the electrolyser, wherein the control device regulates an output power of the variable power source to match it to an electrical operating point (such as voltage and current) and input power to the electrolyser. The control device may comprise control units with modular configuration and hot-swap capabilities. The control device may comprise a state change smoothing method that produces operating parameter changes to bring the electrolyser from one state to another state.

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