Method of preparing a water-reactive sulfide material

    公开(公告)号:US11542161B2

    公开(公告)日:2023-01-03

    申请号:US17177988

    申请日:2021-02-17

    Abstract: A process for producing a low-cost water-reactive metal sulfide material includes dissolving a substantially anhydrous alkali metal salt and a substantially anhydrous sulfide compound in a substantially anhydrous polar solvent, providing differential solubility for a substantially high solubility alkali metal sulfide and a substantially low solubility by-product, and forming a mixture of the high solubility alkali metal sulfide and the low solubility by-product; separating the low solubility by-product from the mixture to isolate the supernatant including the alkali metal sulfide, and separating the polar solvent from the alkali metal sulfide to produce the alkali metal sulfide. The present invention provides a scalable process for production of a high purity alkali metal sulfide that is essentially free of undesired by-products.

    BATTERY OR ELECTROCHEMICAL CELL FIXTURE

    公开(公告)号:US20220094009A1

    公开(公告)日:2022-03-24

    申请号:US17448009

    申请日:2021-09-17

    Abstract: A device for applying compressive force to electrochemical cells or batteries with superior pressure distribution, which includes first and second external plates; a first internal plate positionable adjacent to the first external plate, and comprising an external dimension corresponding to an external dimension of the first external plate and an internal dimension defining a first aperture corresponding to the exterior dimensions of an electrochemical cell or battery; a second internal plate positionable adjacent to the second external plate, and comprising external dimension corresponding to an external dimension of the second external plate and an internal dimension defining a second aperture corresponding to the exterior dimensions of the electrochemical cell or battery; and a plurality of fasteners configured to extend through the first and second external plates and the first and second internal plates to apply pressure to the electrochemical cell or battery positioned between the first and second internal plates.

    METHOD OF PREPARING A WATER-REACTIVE SULFIDE MATERIAL

    公开(公告)号:US20210253424A1

    公开(公告)日:2021-08-19

    申请号:US17177988

    申请日:2021-02-17

    Abstract: A process for producing a low-cost water-reactive metal sulfide material includes dissolving a substantially anhydrous alkali metal salt and a substantially anhydrous sulfide compound in a substantially anhydrous polar solvent, providing differential solubility for a substantially high solubility alkali metal sulfide and a substantially low solubility by-product, and forming a mixture of the high solubility alkali metal sulfide and the low solubility by-product; separating the low solubility by-product from the mixture to isolate the supernatant including the alkali metal sulfide, and separating the polar solvent from the alkali metal sulfide to produce the alkali metal sulfide. The present invention provides a scalable process for production of a high purity alkali metal sulfide that is essentially free of undesired by-products.

    Battery or electrochemical cell fixture

    公开(公告)号:US12237525B2

    公开(公告)日:2025-02-25

    申请号:US17448009

    申请日:2021-09-17

    Abstract: A device for applying compressive force to electrochemical cells or batteries with superior pressure distribution, which includes first and second external plates; a first internal plate positionable adjacent to the first external plate, and comprising an external dimension corresponding to an external dimension of the first external plate and an internal dimension defining a first aperture corresponding to the exterior dimensions of an electrochemical cell or battery; a second internal plate positionable adjacent to the second external plate, and comprising external dimension corresponding to an external dimension of the second external plate and an internal dimension defining a second aperture corresponding to the exterior dimensions of the electrochemical cell or battery; and a plurality of fasteners configured to extend through the first and second external plates and the first and second internal plates to apply pressure to the electrochemical cell or battery positioned between the first and second internal plates.

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