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    REGULATION OF METAL ION LEVELS IN LITHIUM ION BATTERIES
    2.
    发明申请
    REGULATION OF METAL ION LEVELS IN LITHIUM ION BATTERIES 审中-公开

    公开(公告)号：US20190089016A1

    公开(公告)日：2019-03-21

    申请号：US15706829

    申请日：2017-09-18

    Applicant: StoreDot Ltd.

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

    IPC: H01M10/42 ,  H01M10/0525

    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.

    IN-OPERATION LITHIATION ACCORDING TO SOH MONITORING
    3.
    发明申请
    IN-OPERATION LITHIATION ACCORDING TO SOH MONITORING 审中-公开

    公开(公告)号：US20190089015A1

    公开(公告)日：2019-03-21

    申请号：US15706835

    申请日：2017-09-18

    Applicant: StoreDot Ltd.

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

    IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/48 ,  H01M10/44 ,  G01R31/36

    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.

    SEMI-SOLID ELECTROLYTES WITH FLEXIBLE PARTICLE COATINGS
    7.
    发明申请
    SEMI-SOLID ELECTROLYTES WITH FLEXIBLE PARTICLE COATINGS 审中-公开

    公开(公告)号：US20190207270A1

    公开(公告)日：2019-07-04

    申请号：US16268527

    申请日：2019-02-06

    Applicant: StoreDot Ltd.

    Inventor： Doron BURSHTAIN ,  Daniel ARONOV ,  Eran SELLA

    IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/0567

    CPC classification number: H01M10/4235 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2300/0091 ,  H01M2300/0094

    Abstract: Electrolytes, anode material particles and methods are provided for improving performance and enhancing the safety of lithium ion batteries. Electrolytes may comprise ionic liquid(s) as additives which protect the anode material particles and possibly bind thereto; and/or may comprise a large portion of fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component; and/or may comprise composite electrolytes having solid electrolyte particles coated by flexible ionic conductive material. Ionic liquid may be used to pre-lithiate in situ the anode material particles. Disclosed electrolytes improve lithium ion conductivity, prevent electrolyte decomposition and/or prevents lithium metallization on the surface of the anode.

    ELECTROLYTES WITH IONIC LIQUID ADDITIVES FOR LITHIUM ION BATTERIES
    9.
    发明申请
    ELECTROLYTES WITH IONIC LIQUID ADDITIVES FOR LITHIUM ION BATTERIES 审中-公开

    公开(公告)号：US20170294681A1

    公开(公告)日：2017-10-12

    申请号：US15447889

    申请日：2017-03-02

    Applicant: StoreDot Ltd.

    Inventor： Doron BURSHTAIN ,  Nir KEDEM ,  Daniel ARONOV

    IPC: H01M10/0567 ,  H01M4/38 ,  H01M10/0525

    CPC classification number: H01M10/0567 ,  H01M4/366 ,  H01M4/38 ,  H01M4/58 ,  H01M4/5815 ,  H01M4/587 ,  H01M4/602 ,  H01M10/0525

    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.

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