公开(公告)号：US12142724B2

公开(公告)日：2024-11-12

申请号：US17302262

申请日：2021-04-28

Applicant: STOREDOT LTD.

Inventor： Daniel Aronov ,  Assaf Zehavi ,  Eran Sella

IPC: H01M10/0562 ,  H01M10/0566 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/183 ,  H01M10/0565

Abstract: A multi-electrolyte battery, that may include an anode, a cathode, a solid electrolyte positioned between the anode and the cathode, current carriers that comprises an anode current carrier and a cathode current carrier; and at least one other electrolyte. The anode current carrier and the cathode current carrier comprise two external portions that extends outside the anode. The solid electrolyte is sealingly coupled to the two external portions of at least one of the current carriers to define at least one sealed electrolyte, the at least one sealed electrolyte belongs to the at least one other electrolyte.

公开(公告)号：US11916226B2

公开(公告)日：2024-02-27

申请号：US16946787

申请日：2020-07-06

Applicant: STOREDOT LTD.

Inventor： Eran Sella ,  Nitzam Shadmi ,  Ohad Goldbart ,  Daniel Aronov

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0565

CPC classification number: H01M4/366 ,  H01M4/0402 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0565 ,  H01M2004/027 ,  H01M2300/0082

Abstract: Anodes for lithium-ion batteries and methods for their production are provided. Anodes comprise an initial anode made of consolidated anode material particles, and a coating of the initial anode, that comprises a layer of an ionic-conductive polymer which provides an artificial SEI (solid-electrolyte interphase) to facilitate lithium ion transfer through the coating while preventing direct fluid communication with the anode material particles and electrolyte contact thereto. The coating may be configured to keep the anode resistance low while preventing electrolyte decomposition thereupon, enhancing cell stability and cycling lifetime.

公开(公告)号：US11560062B2

公开(公告)日：2023-01-24

申请号：US16579904

申请日：2019-09-24

Applicant: StoreDot Ltd.

Inventor： Daniel Aronov

IPC: H01M4/13 ,  H01M4/58 ,  H01M2/00 ,  H01M10/0525 ,  H01M10/42 ,  B60L50/60 ,  B60L53/10 ,  B60L58/13 ,  B60L58/18 ,  H02J7/34 ,  H02J7/00 ,  H02J3/32 ,  H01M10/44

Abstract: Single, internally adjustable modular battery systems are provided, for handling power delivery from and to various power systems such as electric vehicles, photovoltaic systems, solar systems, grid-scale battery energy storage systems, home energy storage systems and power walls. Batteries 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 to operate at high rates within a limited operation range of state of charge (SoC), respective module management systems, and a control unit. Both the FC and the SCeFC have anodes based on the same anode active material and the control unit is configured to manage the FC and the SCeFC and manage power delivery to and from the power system(s), to optimize the operation of the FC.

公开(公告)号：US11495835B2

公开(公告)日：2022-11-08

申请号：US16293684

申请日：2019-03-06

Applicant: StoreDot Ltd.

Inventor： Daniel Aronov ,  Avraham Edelshtein ,  Simon Litsyn

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

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.

公开(公告)号：US11302908B2

公开(公告)日：2022-04-12

申请号：US16504273

申请日：2019-07-07

Applicant: StoreDot Ltd.

Inventor： Eran Sella ,  Daniel Aronov

IPC: H01M4/1395 ,  H01M4/134 ,  H01M4/62 ,  H01M10/0525

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.

公开(公告)号：US11264810B2

公开(公告)日：2022-03-01

申请号：US16360272

申请日：2019-03-21

Applicant: StoreDot Ltd.

Inventor： Avraham Edelshtein ,  Daniel Aronov

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

Abstract: Systems and methods are provided for balancing battery modules following fast charging, particularly with respect to fast charging lithium ion batteries with metalloid-based anodes. Charge balancing among multiple battery modules connected in series may be carried out by short-circuiting fully charged modules while adjusting the voltage and/or current level supplied by a charger, to fully charge remaining modules. A balancing module comprising a controller and switching circuitry may be configured to implement the charge balancing in association with the charger and its battery management system, and monitoring the battery modules. Advantageously, disclosed switching balancing is more efficient than prior art passive balancing and simpler in implementation than prior art active balancing.

公开(公告)号：US11237219B2

公开(公告)日：2022-02-01

申请号：US16729560

申请日：2019-12-30

Applicant: Storedot Ltd.

Inventor： Zvi Ioffe ,  Leonid Krasovitsky ,  Daniel Aronov

IPC: G01R31/392 ,  H01M10/0525 ,  H01M10/48 ,  H01M10/44 ,  G01R31/3835 ,  H01M10/42

Abstract: Methods of managing a lithium ion battery and of recovering branches and/or cells in the battery are provided, as well as battery management systems (BMS) and batteries implementing the methods. Branches and/or cells may be recovered by slow and deep discharging, followed by slow charging—to increase capacity, cycling lifetime and/or enhance safety thereof. BMSs may be configured to diagnose defective branches and/or cells and manage the recovery procedure with respect to changing operational loads the battery and the available internal and external charging sources.

公开(公告)号：US11228195B2

公开(公告)日：2022-01-18

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 ,  H01M10/48 ,  H01M10/44 ,  H01M10/0525

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.

公开(公告)号：US11218011B2

公开(公告)日：2022-01-04

申请号：US16395643

申请日：2019-04-26

Applicant: StoreDot Ltd.

Inventor： Daniel Aronov ,  Avraham Edelshtein ,  Amir Tirosh ,  Doron Myersdorf

IPC: H02J7/00 ,  H01M4/38 ,  H01M10/44 ,  H01M4/02

Abstract: Charging systems and methods are provided, which increase charging currents and reduce charging durations for battery cells with metalloid-based anodes that enable high C-rate (charging rate) charging. Specifically, methods comprise charging battery cells having metalloid-based anodes having Si, Ge and/or Sn-based anode active material, by providing a high-C charging current of at least 4 C (or 5 C, or 10 C or more) over a range of at least 10-70% SoC (state of charge) of the battery cells. Charging systems comprise a booster unit configured to provide a high-C charging current over at least most of the SoC range of battery cells having metalloid-based anodes in the at least one battery unit. Charging systems further comprise a user interface configured to receive user preferences concerning a specified charging duration and/or a specified target SoC—for implementation by the charging system.

公开(公告)号：US10944093B2

公开(公告)日：2021-03-09

申请号：US16237759

申请日：2019-01-02

Applicant: StoreDot Ltd.

Inventor： Ron Paz ,  Yaniv Damtov ,  Daniel Aronov

IPC: H01M4/04 ,  H01M4/66 ,  H01M2/16 ,  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.