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    Electric vehicles with adaptive fast-charging, utilizing supercapacitor-emulating batteries
    141.
    发明授权
    Electric vehicles with adaptive fast-charging, utilizing supercapacitor-emulating batteries 有权

    公开(公告)号：US10293704B2

    公开(公告)日：2019-05-21

    申请号：US15783586

    申请日：2017-10-13

    Applicant: StoreDot Ltd.

    Inventor： Daniel Aronov

    IPC: H01M2/00 ,  H01M4/13 ,  H01M4/58 ,  H01M10/48 ,  B60L11/18 ,  B60L11/00 ,  G01R31/36 ,  H02J7/00

    Abstract: Electric vehicles (EVs), power trains and control units and methods are provided. Power trains comprise a main fast-charging lithium ion battery (FC), configured to deliver power to the electric vehicle, a supercapacitor-emulating fast-charging lithium ion battery (SCeFC), configured to receive power and deliver power to the FC and/or to the EV, and a control unit. Both the FC and the SCeFC have anodes based on the same anode active material, and the SCeFC is configured to operate at high rates within a limited operation range of state of charge (SoC), maintained by the control unit, which is further configured to manage the FC and the SCeFC with respect to power delivery to and from the EV, respectively, and manage power delivery from the SCeFC to the FC according to specified criteria that minimize a depth of discharge and/or a number of cycles of the FC.

    ELECTROLYTES WITH VINYL CARBONATE AND BUTYRATE SOLVENTS
    142.
    发明申请
    ELECTROLYTES WITH VINYL CARBONATE AND BUTYRATE SOLVENTS 审中-公开

    公开(公告)号：US20190148774A1

    公开(公告)日：2019-05-16

    申请号：US16243190

    申请日：2019-01-09

    Applicant: StoreDot Ltd.

    Inventor： Evgenia Liel (Jeny) KUKS ,  Liron AMIR ,  Nir KEDEM

    IPC: H01M10/0569 ,  H01M10/0525 ,  H01M4/38 ,  H01M10/42

    Abstract: Electrolytes are provided, as well as fast charging lithium ion batteries with the electrolytes and corresponding methods—which enhance the safety and performance of the fast charging lithium ion batteries. The electrolytes comprise four-carbon chain ester(s) such as ethyl butyrate and/or butyl acetate as a significant part of the linear solvent (e.g., at least half and up to the full volume) and possibly vinyl carbonate as the cyclic carbonate solvent, in addition to lithium salt(s) and possibly additives. The use of vinyl carbonate enhances the ion conductivity of the electrolyte, while the use of four-carbon chain ester(s) such as ethyl butyrate and/or butyl acetate enhances the safety of the battery.

    Increasing cycling lifetime of fast-charging lithium ion batteries
    143.
    发明授权
    Increasing cycling lifetime of fast-charging lithium ion batteries 有权

    公开(公告)号：US10122042B2

    公开(公告)日：2018-11-06

    申请号：US15867764

    申请日：2018-01-11

    Applicant: STOREDOT LTD.

    Inventor： Leonid Krasovitsky ,  Vladimir Seleznyov ,  Daniel Aronov

    IPC: H02J7/00 ,  H01M10/0525 ,  H01M4/04 ,  G01R31/36 ,  H01M10/42

    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.

    Electrode stack production methods
    146.
    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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