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    PRE-LITHIATION OF MULTIPLE BATTERY POUCHES
    192.
    发明申请
    PRE-LITHIATION OF MULTIPLE BATTERY POUCHES 审中-公开

    公开(公告)号：US20190148784A1

    公开(公告)日：2019-05-16

    申请号：US16248213

    申请日：2019-01-15

    Applicant: StoreDot Ltd.

    Inventor： Ron PAZ ,  Nir KEDEM ,  Doron BURSHTAIN ,  Nir BARAM ,  Nir POUR ,  Daniel ARONOV

    IPC: H01M10/42 ,  H01M10/0525

    CPC classification number: H01M10/4257 ,  H01M4/0461 ,  H01M10/0445 ,  H01M10/0525 ,  H01M10/446 ,  H01M2010/4271

    Abstract: Systems and methods are provided, in which the level of metal ions in cells stacks and lithium ion batteries is regulated in situ, with the electrodes of the cell stack(s) in the respective pouches. Regulation of metal ions may be carried out electrochemically by metal ion sources in the pouches, electrically connected to the electrodes. The position and shape of the metal ion sources may be optimized to create uniform metal ion movements to the electrode surfaces and favorable SEI formation. The metal ion sources may be removable, or comprise a lithium source for lithiating the anodes or cathodes during operation of the battery according to SoH parameters. Regulation of metal ions may be carried out from metal ion sources in separate electrolyte reservoir(s), with circulation of the metal-ion-containing electrolyte through the cell stacks in the pouches prior or during the formation.

    Electrolytes with ionic liquid additives for lithium ion batteries
    197.
    发明授权
    Electrolytes with ionic liquid additives for lithium ion batteries 有权

    公开(公告)号：US10096859B2

    公开(公告)日：2018-10-09

    申请号：US15447889

    申请日：2017-03-02

    Applicant: StoreDot Ltd.

    Inventor： Doron Burshtain ,  Nir Kedem ,  Daniel Aronov

    IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/58 ,  H01M4/587 ,  H01M4/36 ,  H01M4/38 ,  H01M4/60

    Abstract: Electrolytes, anodes, lithium ion cells and methods are provided for preventing lithium metallization in lithium ion batteries to enhance their safety. Electrolytes comprise up to 20% ionic liquid additives which form a mobile solid electrolyte interface during charging of the cell and prevent lithium metallization and electrolyte decomposition on the anode while maintaining the lithium ion mobility at a level which enables fast charging of the batteries. Anodes are typically metalloid-based, for example include silicon, germanium, tin and/or aluminum. A surface layer on the anode bonds, at least some of the ionic liquid additive to form an immobilized layer that provides further protection at the interface between the anode and the electrolyte, prevents metallization of lithium on the former and decomposition of the latter.

    CELL STACK ASSEMBLY SYSTEMS
    198.
    发明申请
    CELL STACK ASSEMBLY SYSTEMS 审中-公开

    公开(公告)号：US20180261819A1

    公开(公告)日：2018-09-13

    申请号：US15978202

    申请日：2018-05-14

    Applicant: StoreDot Ltd.

    Inventor： Ekaterina GOTLIB VAINSHTEIN ,  Daniel ARONOV

    IPC: H01M2/16 ,  H01M10/04 ,  H01M4/04 ,  H01M10/0585 ,  H01M10/0525 ,  H01M2/02

    CPC classification number: H01M2/1673 ,  H01M2/0275 ,  H01M2/168 ,  H01M2/1686 ,  H01M4/0402 ,  H01M4/0404 ,  H01M4/0435 ,  H01M10/0404 ,  H01M10/0436 ,  H01M10/0468 ,  H01M10/0525 ,  H01M10/0585

    Abstract: Methods, stacks and electrochemical cells are provided, in which the cell separator is surface-treated prior to attachment to the electrode(s) to form binding sites on the cell separator and enhance binding thereof to the electrode(s), e.g., electrostatically. The cell separator(s) may be attached to the electrode(s) by cold press lamination, wherein the created binding sites are configured to stabilize the cold press lamination electrostatically—forming flexible and durable electrode stacks. Electrode slurry may be deposited on a sacrificial film and then attached to current collector films, avoiding unwanted interactions between materials and in particular solvents involved in the respective slurries. Dried electrode slurry layers may be pressed or calendared against each other to yield thinner, smother and more controllably porous electrodes, as well as higher throughput. The produced stacks may be used in electrochemical cells and in any other type of energy storage device.

    COMPOSITE ANODE MATERIAL MADE OF IONIC-CONDUCTING ELECTRICALLY INSULATING MATERIAL
    199.
    发明申请
    COMPOSITE ANODE MATERIAL MADE OF IONIC-CONDUCTING ELECTRICALLY INSULATING MATERIAL 审中-公开

    公开(公告)号：US20180212240A1

    公开(公告)日：2018-07-26

    申请号：US15853885

    申请日：2017-12-25

    Applicant: StoreDot Ltd.

    Inventor： David JACOB ,  Sergey REMIZOV ,  Nitzan SHADMI ,  Hani FARRAN ,  Daniel ARONOV

    IPC: H01M4/36 ,  H01M4/60 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/38 ,  H01M4/485 ,  H01M4/02

    Abstract: Core-shell particles, composite anode material, anodes made therefrom, lithium ion cells and methods are provided, which enable production of fast charging lithium ion batteries. The composite anode material has core-shell particles which are configured to receive and release lithium ions at their cores and to have shells that are configured to allow for core expansion upon lithiation. The cores of the core-shell particles are connected to the respective shells by conductive material such as carbon fibers, which may form a network throughout the anode material and possibly interconnect cores of many core-shell particles to enhance the electrical conductivity of the anode. Ionic conductive material and possibly mechanical elements may be incorporated in the core-shell particles to enhance ionic conductivity and mechanical robustness toward expansion and contraction of the cores during lithiation and de-lithiation.

    COMPOSITE ANODE MATERIAL MADE OF IONIC-CONDUCTING ELECTRICALLY INSULATING MATERIAL
    200.
    发明申请
    COMPOSITE ANODE MATERIAL MADE OF IONIC-CONDUCTING ELECTRICALLY INSULATING MATERIAL 审中-公开

    公开(公告)号：US20180212239A1

    公开(公告)日：2018-07-26

    申请号：US15792779

    申请日：2017-10-25

    Applicant: StoreDot Ltd.

    Inventor： David Jacob ,  Sergey Remizov ,  Nitzan Shadmi ,  Hani Farran ,  Daniel Aronov

    IPC: H01M4/36 ,  H01M4/60 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/38 ,  H01M4/485 ,  H01M4/02

    Abstract: Core-shell particles, composite anode material, anodes made therefrom, lithium ion cells and methods are provided, which enable production of fast charging lithium ion batteries. The composite anode material has core-shell particles which are configured to receive and release lithium ions at their cores and to have shells that are configured to allow for core expansion upon lithiation. The cores of the core-shell particles are connected to the respective shells by conductive material such as carbon fibers, which may form a network throughout the anode material and possibly interconnect cores of many core-shell particles to enhance the electrical conductivity of the anode. Ionic conductive material and possibly mechanical elements may be incorporated in the core-shell particles to enhance ionic conductivity and mechanical robustness toward expansion and contraction of the cores during lithiation and de-lithiation.

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