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    MANAGEMENT OF LARGE STACKS OF BATTERY CELLS
    181.
    发明申请
    MANAGEMENT OF LARGE STACKS OF BATTERY CELLS 审中-公开

    公开(公告)号：US20200287248A1

    公开(公告)日：2020-09-10

    申请号：US16293684

    申请日：2019-03-06

    Applicant: StoreDot Ltd.

    Inventor： Daniel ARONOV ,  Avaham EDELSHTEIN ,  Simon LITSYN

    IPC: H01M10/42 ,  H02J7/00 ,  H01M10/44 ,  G01R31/382 ,  G01R31/392

    Abstract: Methods and systems are provided for optimizing usage of a large number of battery cells, some, most or all of which are fast charging cells, and possibly arranged in battery modules—e.g., for operating an electric vehicle power train. Methods comprise deriving an operation profile for the battery cells/modules for a specified operation scenario and specified optimization parameters, operating the battery cells/modules according to the derived operation profile, and monitoring the operation of the battery cells/modules and adjusting the operation profile correspondingly. Systems may be configured to balance cell/module parameters among modules, to have parallel supplemental modules and/or serial supplementary cells in the modules, and/or have supplemental modules and circuits configured to store excessive charging energy for cells groups and/or modules—to increase the cycling lifetime and possibly the efficiency of the systems. Disclosed redundancy management improves battery performance and lifetime.

    Direct charging of battery cell stacks
    182.
    发明授权
    Direct charging of battery cell stacks 有权

    公开(公告)号：US10608463B1

    公开(公告)日：2020-03-31

    申请号：US16254648

    申请日：2019-01-23

    Applicant: StoreDot Ltd.

    Inventor： Daniel Aronov ,  Avraham Edelshtein ,  Maxim Liberman

    IPC: H02J7/04 ,  H02J7/00 ,  G01R31/3842 ,  H01M10/44 ,  H01M10/42 ,  G01R31/392

    Abstract: Charging methods and systems are provided which charge multiple cells directly from an AC source, by adjusting, momentarily, the number of charged cells to the momentary voltage level provided by the AC source. Cells are rapidly switched in and out to correspond to the provided voltage level, and the charging level of each cell is regulated by the switching order of the cells—determined according to cell characteristics such as state of charge and state of health. Advantageously, charging losses are reduced significantly in the disclosed systems and methods, and an additional level of cell control is provided. The charged assembly of cells may be arranged and re-arranged in various configurations to optimize the charging scheme, e.g., to equalize the charging states of the cells to simplify the use and improve the efficiency of the cell stack.

    MOBILE LAYER OF IONIC LIQUID IN ELECTROLYTES
    183.
    发明申请
    MOBILE LAYER OF IONIC LIQUID IN ELECTROLYTES 审中-公开

    公开(公告)号：US20200006811A1

    公开(公告)日：2020-01-02

    申请号：US16565500

    申请日：2019-09-10

    Applicant: StoreDot Ltd.

    Inventor： Doron BURSHTAIN ,  Nir KEDEM ,  Daniel ARONOV

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

    ANODE ACTIVE MATERIAL WITH A BUFFERING ZONE
    184.
    发明申请
    ANODE ACTIVE MATERIAL WITH A BUFFERING ZONE 审中-公开

    公开(公告)号：US20190393562A1

    公开(公告)日：2019-12-26

    申请号：US16533907

    申请日：2019-08-07

    Applicant: STOREDOT LTD.

    Inventor： Doron BURSHTAIN ,  Nir Kedem ,  Eran Sella ,  Daniel Aronov

    IPC: H01M10/42 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/38 ,  C09D179/02 ,  C09D5/24

    Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

    Introducing a mobile layer of ionic liquid into electrolytes of lithium ion batteries
    186.
    发明授权
    Introducing a mobile layer of ionic liquid into electrolytes of lithium ion batteries 有权

    公开(公告)号：US10424814B2

    公开(公告)日：2019-09-24

    申请号：US16013969

    申请日：2018-06-21

    Applicant: StoreDot Ltd.

    Inventor： Doron Burshtain ,  Nir Kedem ,  Daniel Aronov

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

    Lithium borates and phosphates coatings
    189.
    发明授权
    Lithium borates and phosphates coatings 有权

    公开(公告)号：US10355271B2

    公开(公告)日：2019-07-16

    申请号：US15480922

    申请日：2017-04-06

    Applicant: STOREDOT LTD.

    Inventor： Doron Burshtain ,  Nir Kedem ,  Daniel Aronov

    IPC: H01M4/134 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/1395 ,  H01M4/62 ,  H01M4/02

    Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

    DEVICES AND METHODS FOR ADAPTIVE FAST-CHARGING OF MOBILE DEVICES
    190.
    发明申请
    DEVICES AND METHODS FOR ADAPTIVE FAST-CHARGING OF MOBILE DEVICES 审中-公开

    公开(公告)号：US20190165592A1

    公开(公告)日：2019-05-30

    申请号：US16265470

    申请日：2019-02-01

    Applicant: StoreDot Ltd.

    Inventor： Daniel ARONOV ,  Leonid KRASOVITSKY ,  Maxim LIBERMAN ,  Vadim SABAYEV ,  Leonid SPINDLER ,  Alan WEISLEDER

    IPC: H02J7/00

    Abstract: The present invention discloses devices and methods for adaptive fast-charging of mobile devices. Methods include the steps of: firstly determining whether a first connected component is charged; upon firstly determining the first connected component isn't charged, secondly determining whether the first connected component is adapted for rapid charging; and upon secondly determining the first connected component is adapted for rapid charging, firstly charging the first connected component at a high charging rate via a charging device. Preferably, the charging device is selected from the group consisting of: a rapid charger and a slave battery. Preferably, the first connected component is selected from the group consisting of: a mobile device and a slave battery. Preferably, the high charging rate is selected from the group consisting of: greater than about 4 C, greater than about 5 C, greater than about 10 C, greater than about 20 C, greater than about 30 C, and greater than about 60 C.

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