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    Optical communication through transparent pouches of lithium ion batteries
    32.
    发明授权
    Optical communication through transparent pouches of lithium ion batteries 有权

    公开(公告)号：US11165106B2

    公开(公告)日：2021-11-02

    申请号：US16718235

    申请日：2019-12-18

    Applicant: Storedot Ltd.

    Inventor： Ron Paz ,  Yaniv Damtov ,  Leonid Krasovitsky ,  Ohad Goldbart ,  Simon Litsyn ,  Daniel Aronov

    IPC: H01M10/48 ,  H01M50/116 ,  H01M10/0525 ,  H01M10/42 ,  H01M50/131

    Abstract: Lithium ion batteries and cells, as well as operating and testing methods are provided, which utilize a transparent pouch to monitor the battery in operational condition and/or in operation. Transparent parts of the pouch may be used for direct sensing of cell elements. Removable covers may be used to protect battery components from illumination damage. Indicators in the transparent pouch may be associated with cell components such as electrodes and electrolyte to indicate their condition. External sensors may be used to derive data from the indicators, and bi-directional electromagnetic (e.g., optical) communication may be established through the transparent pouch, to enhance monitoring and spare physical electrical connections. For example, the transparent pouch may be used to monitor and enhance battery safety and/or to modify operational parameters non-destructively, during operation of the battery.

    Extending cycling lifetime of fast-charging lithium ion batteries
    33.
    发明授权
    Extending cycling lifetime of fast-charging lithium ion batteries 有权

    公开(公告)号：US11088402B2

    公开(公告)日：2021-08-10

    申请号：US16714902

    申请日：2019-12-16

    Applicant: Storedot Ltd.

    Inventor： Leonid Krasovitsky ,  Vladimir Seleznyov ,  Daniel Aronov ,  Assaf Grunwald

    IPC: H02J7/00 ,  H01M10/44 ,  H01M10/0525

    Abstract: Methods, systems and battery modules are provided, which increase the cycling lifetime of fast charging lithium ion batteries. During the formation process, the charging currents are adjusted to optimize the cell formation, possibly according to the characteristics of the formation process itself, and discharge extents are partial and optimized as well, as is the overall structure of the formation process. During operation, voltage ranges are initially set to be narrow, and are broadened upon battery deterioration to maximize the overall lifetime. Current adjustments are applied in operation as well, with respect to the deteriorating capacity of the battery. Various formation and operation strategies are disclosed, as basis for specific optimizations.

    Formation method for preparing a fast-charging lithium ion cell
    35.
    发明授权
    Formation method for preparing a fast-charging lithium ion cell 有权

    公开(公告)号：US10833521B2

    公开(公告)日：2020-11-10

    申请号：US16180066

    申请日：2018-11-05

    Applicant: StoreDot Ltd.

    Inventor： Leonid Krasovitsky ,  Vladimir Seleznyov ,  Daniel Aronov

    IPC: H02J7/00 ,  H01M10/0525 ,  G01R31/382 ,  H01M4/04 ,  G01R31/385

    Abstract: Methods, systems and battery modules are provided, which increase the cycling lifetime of fast charging lithium ion batteries. During the formation process, the charging currents are adjusted to optimize the cell formation, possibly according to the characteristics of the formation process itself, and discharge extents are partial and optimized as well, as is the overall structure of the formation process. During operation, voltage ranges are initially set to be narrow, and are broadened upon battery deterioration to maximize the overall lifetime. Current adjustments are applied in operation as well, with respect to the deteriorating capacity of the battery. Various formation and operation strategies are disclosed, as basis for specific optimizations.

    LITHIUM ION DEVICES, OPERATED WITH SET OPERATIVE CAPACITY
    36.
    发明申请
    LITHIUM ION DEVICES, OPERATED WITH SET OPERATIVE CAPACITY 审中-公开

    公开(公告)号：US20200335980A1

    公开(公告)日：2020-10-22

    申请号：US16389951

    申请日：2019-04-21

    Applicant: StoreDot Ltd.

    Inventor： Daniel Aronov ,  Avraham Edelshtein ,  Ohad Goldbart ,  Simon Litsyn ,  Nicky Zintchenko Nachshony

    IPC: H02J7/00 ,  H01M10/0525 ,  H01M10/44 ,  H01M10/48

    Abstract: Systems and methods are provided for operating lithium ion devices by setting an operative capacity below a rated capacity value of the lithium ion device, and operating the lithium ion device at the set operative capacity by decreasing a lower voltage cutoff value during discharging and/or by increasing an upper voltage cutoff level during charging—to support operation at the set operative capacity. The systems and methods may utilize residual lithium in device components such as anodes, cathodes, electrolyte etc. or combinations thereof, and/or external lithiation to increase the cycling lifetime of the lithium ion devices, to adapt to user preferences and expected use profiles, and to simplify device status indications to the user. Advantageously, relatively simple circuitry is required to implement the provided methods and systems, and achieve customizable operation of the lithium ion devices.

    Electrodes made of electrically conductive metallic porous structure with embedded active material particles
    37.
    发明授权
    Electrodes made of electrically conductive metallic porous structure with embedded active material particles 有权

    公开(公告)号：US10586977B1

    公开(公告)日：2020-03-10

    申请号：US16254632

    申请日：2019-01-23

    Applicant: StoreDot Ltd.

    Inventor： Eran Sella ,  Ohad Goldbart ,  Daniel Aronov

    IPC: H01M4/04 ,  H01M4/1395 ,  H01M4/134 ,  H01M10/0525 ,  H01M4/02

    Abstract: Electrodes, production methods and mono-cell batteries are provided, which comprise active material particles embedded in electrically conductive metallic porous structure, dry-etched anode structures and battery structures with thick anodes and cathodes that have spatially uniform resistance. The metallic porous structure provides electric conductivity, a large volume that supports good ionic conductivity, that in turn reduces directional elongation of the particles during operation, and may enable reduction or removal of binders, conductive additives and/or current collectors to yield electrodes with higher structural stability, lower resistance, possibly higher energy density and longer cycling lifetime. Dry etching treatments may be used to reduce oxidized surfaces of the active material particles, thereby simplifying production methods and enhancing porosity and ionic conductivity of the electrodes. Electrodes may be made thick and used to form mono-cell batteries which are simple to produce and yield high performance.

    Composite anode material made of core-shell particles
    39.
    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.

    ELECTRODE-PREPARATION SYSTEMS
    40.
    发明申请
    ELECTRODE-PREPARATION SYSTEMS 审中-公开

    公开(公告)号：US20190189999A1

    公开(公告)日：2019-06-20

    申请号：US16237759

    申请日：2019-01-02

    Applicant: StoreDot Ltd.

    Inventor： Ron PAZ ,  Yaniv Damtov ,  Daniel Aronov

    IPC: H01M4/04 ,  H01M10/0585 ,  H01M4/66 ,  H01M2/16

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

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