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    Filter Press End Assembly and Fluid Management System for use in Unipolar Electrochemical Devices
    1.
    发明申请
    Filter Press End Assembly and Fluid Management System for use in Unipolar Electrochemical Devices 有权

    公开(公告)号：US20250043444A1

    公开(公告)日：2025-02-06

    申请号：US18904236

    申请日：2024-10-02

    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.

    Inventor： Jaideep S. Spal ,  Edward D. B. Stuart ,  Raynald G. LaChance ,  Andrew T. B. Stuart

    IPC: C25B9/73 ,  C25B1/04 ,  C25B15/08

    Abstract: Disclosed is an end assembly for use in a unipolar filter press electrolyser, where the unipolar filter press electrolyser has a filter press stack. The end assembly of the unipolar filter press electrolyser includes an end plate component having two apertures, the two apertures being alignable with channels formed in the filter press stack. The two apertures include a first aperture configured to receive a stream of liquid electrolyte and gases from the filter press stack, and a second aperture configured to receive a stream of recirculated liquid electrolyte. In addition, the end assembly includes an end clamp configured to apply a clamping force on the end plate component to securely retain the filter press stack. The end clamp includes one gas offtake port to extract gases from the stream of liquid electrolyte and gases from the first aperture and discharge the gases out of the unipolar filter press electrolyser.

    METHOD AND ELECTROCHEMICAL FILTER CELL FOR EXTRACTING LITHIUM
    2.
    发明申请
    METHOD AND ELECTROCHEMICAL FILTER CELL FOR EXTRACTING LITHIUM 有权

    公开(公告)号：US20250003083A1

    公开(公告)日：2025-01-02

    申请号：US18702390

    申请日：2022-10-20

    Applicant: LILECTRA CORPORATION

    Inventor： Kagan CERAN

    IPC: C25B1/26 ,  C25B9/65 ,  C25B9/73 ,  C25B15/08

    Abstract: A novel electrochemical cell for extraction of lithium chloride from brines and release of pure lithium metal is disclosed, wherein the cell is composed of two porous electrodes positioned inside a housing with a narrow gap between them and preferably a third recovery electrode. The working electrode is impregnated with a compound that selectively binds lithium ions such as various manganese oxide and Prussian Blue analogs. The counter electrode is impregnated with a compound that binds chlorine ions such as silver and polypyrrole. Brine is pumped through the charged electrodes and lithium ions selectively bind to the working electrode and chlorine ions bind to the counter electrode while the majority of other salts pass through. When the working electrode is fully loaded, the brine is replaced with a polar organic solvent and the voltage increased to release the chlorine ions from the counter electrode as chlorine gas. Then the polarity of the electrodes is reversed between the capture electrode and the recovery electrode, and the lithium ions are released into the solvent. The solvent with the insoluble lithium ions is collected in an inert tank and the solvent is drained and evaporated, leaving dry pure lithium metal precipitate. This precipitate is melted, drained into an inert canister, and solidified as pure lithium metal ready for use.

    Hydrogen system
    3.
    发明授权
    Hydrogen system 有权

    公开(公告)号：US12146227B2

    公开(公告)日：2024-11-19

    申请号：US16953195

    申请日：2020-11-19

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Takashi Oto ,  Hiromi Kita

    IPC: C25B1/04 ,  B01D53/26 ,  C25B9/19 ,  C25B9/70 ,  C25B9/73 ,  C25B15/02 ,  C25B15/021 ,  C25B15/08

    Abstract: A hydrogen system includes: a water electrolysis apparatus including a water electrolysis cell; an electrochemical hydrogen pump that increases the pressure of hydrogen-containing gas produced by the water electrolysis apparatus; a gas flow path that supplies the hydrogen-containing gas produced by the water electrolysis apparatus to the electrochemical hydrogen pump; and a first flow path through which a first heat medium that is a liquid and has collected waste heat of the water electrolysis cell flows. The electrochemical hydrogen pump is capable of performing heat exchange with the first heat medium having collected waste heat of the water electrolysis cell.

    Combined Current Carrier Circulation Chamber and Frame for use in Unipolar Electrochemical Devices
    8.
    发明公开
    Combined Current Carrier Circulation Chamber and Frame for use in Unipolar Electrochemical Devices 审中-公开

    公开(公告)号：US20230295815A1

    公开(公告)日：2023-09-21

    申请号：US18016651

    申请日：2021-07-15

    Applicant: KEY DH IP INC./IP STRATEGIQUES DH, INC.

    Inventor： Andrew T. B. Stuart ,  Samantha E. L. Stuart ,  Edward D. B. Stuart ,  Raynald G. LaChance ,  Jaideep S. Spal

    IPC: C25B9/65 ,  C25B1/04 ,  C25B9/73 ,  C25B1/34 ,  C25B1/26

    CPC classification number: C25B9/65 ,  C25B1/04 ,  C25B9/73 ,  C25B1/34 ,  C25B1/265

    Abstract: Disclosed is a combined electrical current carrier, circulation chamber and frame (CCF) formed as a single or double part (CCF) for use in unipolar electrochemical devices, such as a filter press electrolyser apparatus. The CCF is structured to define an internal circulation chamber for circulation of electrolyte, products, and reactants as well as apertures which form flow passageways when the filter press device is assembled. Affixed on opposed surfaces of the CCFs are electrically conductive planar electroactive structures which are in electrical contact with the CCF. The circulation chamber is formed by the depth of the CCF itself between opposing electroactive structures. Multiple CCFs are assembled and compressed together to form the filter press electrolyser apparatus. The flow passageway apertures within the assembled filter press electrolyser are aligned to form flow pathways, located above and below the circulation chambers. Reactants and electrolyte are input along the bottom flow pathways. When power is applied to the CCFs and electroactive structures, the reactants, once they flow into the circulation chamber with the electrolyte, undergo redox reactions to produce the products which are then collected and exit the electrolyser in the upper flow pathways.

    Electrode for an electrolysis process
    9.
    发明授权
    Electrode for an electrolysis process 有权

    公开(公告)号：US11732369B2

    公开(公告)日：2023-08-22

    申请号：US16648823

    申请日：2018-09-19

    Applicant: HYMETH APS

    Inventor： Sumon Bishwas

    IPC: C25B11/057 ,  C25B11/02 ,  C25B9/70 ,  C25B9/73 ,  C25B1/04

    CPC classification number: C25B11/057 ,  C25B1/04 ,  C25B9/70 ,  C25B9/73 ,  C25B11/02

    Abstract: An electrode including a metal coil and a metal wire is provided. The metal coil includes a metal selected from copper, silver, gold, nickel and aluminium. The turns of the metal coil are separated by a gap. At least part of the metal wire is arranged inside the metal coil. The metal wire and the metal coil are in electrical contact. The metal wire includes a metal selected from copper, silver, gold, nickel and aluminum. The metal wire and the metal coil are made of a same metal. The metal coil has a plurality of turns forming an elongated coil body with a central channel along a central axis of the metal coil. The metal wire extends longitudinally inside the central channel from one end of the metal coil to an other end of the metal coil along the central axis of the metal coil.

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