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    Composite anode material made of core-shell particles
    4.
    发明授权
    Composite anode material made of core-shell particles 有权

    公开(公告)号：US10454101B2

    公开(公告)日：2019-10-22

    申请号：US15414655

    申请日：2017-01-25

    Applicant: Storedot Ltd.

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

    IPC: H01M4/131 ,  H01M4/36 ,  H01M4/60 ,  H01M4/38 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525 ,  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
    5.
    发明授权
    Composite anode material made of ionic-conducting electrically insulating material 有权

    公开(公告)号：US10461322B2

    公开(公告)日：2019-10-29

    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: H01M4/1395 ,  H01M4/36 ,  H01M4/60 ,  H01M4/38 ,  H01M4/485 ,  H01M4/62 ,  H01M10/0525 ,  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.

    Electrode stack production methods
    7.
    发明授权
    Electrode stack production methods 有权

    公开(公告)号：US09966591B1

    公开(公告)日：2018-05-08

    申请号：US15431793

    申请日：2017-02-14

    Applicant: Storedot Ltd.

    Inventor： Sergey Remizov ,  Boris Brudnik ,  David Jacob ,  Daniel Aronov

    IPC: H01M4/04 ,  H01M10/0585

    CPC classification number: H01M4/0402 ,  H01M2/168 ,  H01M4/0435 ,  H01M4/667 ,  H01M10/0585

    Abstract: Methods, stacks and electrochemical cells are provided, which improve production processes and yield flexible and durable electrode stacks. Methods comprise depositing an electrode slurry on a sacrificial film to form an electrode thereupon, wherein the electrode slurry comprises a first solvent, attaching (e.g., laminating) a current collector film, which is produced at least partly using a second solvent, onto the formed electrode, to yield a stack, wherein a binding strength of the electrode to the current collector film is higher than a binding strength of the electrode to the sacrificial film, and delaminating the sacrificial film from the electrode while maintaining the attachment of the electrode to the current collector film. Additional layers such as a cell separator and an additional electrode may be further attached using similar steps.

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