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    Production of metalloid-based anodes for lithium ion batteries using dry etching
    21.
    发明授权
    Production of metalloid-based anodes for lithium ion batteries using dry etching 有权

    公开(公告)号：US10581065B1

    公开(公告)日：2020-03-03

    申请号：US16258730

    申请日：2019-01-28

    Applicant: StoreDot Ltd.

    Inventor： Eran Sella ,  Daniel Aronov

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

    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.

    Aluminum anode active material
    23.
    发明授权
    Aluminum anode active material 有权

    公开(公告)号：US10367192B2

    公开(公告)日：2019-07-30

    申请号：US15480911

    申请日：2017-04-06

    Applicant: STOREDOT LTD.

    Inventor： Doron Burshtain ,  Nir Kedem ,  Daniel Aronov

    IPC: H01M4/134 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/36 ,  H01M4/1395 ,  H01M4/04 ,  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.

    Supercapacitor-emulating fast-charging batteries and devices
    24.
    发明授权
    Supercapacitor-emulating fast-charging batteries and devices 有权

    公开(公告)号：US10110036B2

    公开(公告)日：2018-10-23

    申请号：US15582066

    申请日：2017-04-28

    Applicant: StoreDot Ltd.

    Inventor： Daniel Aronov

    IPC: H01M4/13 ,  H01M4/58 ,  H01M2/00 ,  H02J7/00 ,  H01M10/0525 ,  H01M10/44 ,  H01M4/36 ,  H01M4/38

    Abstract: Methods and supercapacitor-emulating fast-charging batteries are provided. Methods comprise configuring a fast-charging battery to emulate a supercapacitor with given specifications by operating the fast-charging battery only within a partial operation range which is defined according to the given specifications of the supercapacitor and is smaller than 20%, possibly 5% or 1%, of a full operation range of the fast-charging battery. Devices are provided, which comprise control circuitry and a modified fast-charging lithium ion battery having Si, Ge and/or Sn-based anode active material and designed to operate at 5 C at least and within a range of 5% at most around a working point of between 60-80% lithiation of the Si, Ge and/or Sn-based anode active material, wherein the control circuitry is configured to maintain a state of charge (SOC) of the battery within the operation range around the working point.

    Energy-Storage Devices Having Integral Power-Management Units For Fast-Charging of Rechargeable devices
    27.
    发明申请
    Energy-Storage Devices Having Integral Power-Management Units For Fast-Charging of Rechargeable devices 审中-公开
    具有集成电源管理单元的储能装置，用于快速充电充电装置

    公开(公告)号：US20160241070A1

    公开(公告)日：2016-08-18

    申请号：US14623052

    申请日：2015-02-16

    Applicant: StoreDot Ltd.

    Inventor： Daniel Aronov ,  Leonid Krasovitsky ,  Maxim Liberman ,  Vadim Sabayev ,  Leonid Spindler

    IPC: H02J7/00 ,  H02J7/02

    CPC classification number: H02J7/0054 ,  H02J7/025 ,  Y02B40/90

    Abstract: The present invention discloses integrated power-management units in energy-storage devices for fast-charging of rechargeable devices. Energy-storage devices include: an energy-storage component for providing power to a rechargeable device; and an integral power-management unit (PMU), integrally connected to the energy-storage component, for transforming a high-power input, having an input voltage and a low input RMS current, into a high-power output, having an output voltage and a high output RMS current, wherein the high-power input is equal to the high-power output, and wherein the high-power output is configured to charge the energy-storage component. Preferably, the PMU is configured to minimize resistive losses, wherein the resistive losses are designated as a mathematical product of the square of the high output RMS current (IRMS2) and an output circuit resistance between the integral PMU and the energy-storage component, and wherein the mathematical product is symbolically defined as IRMS2×R, associated with the high-power output.

    Abstract translation: 本发明公开了用于快速充电可充电装置的蓄能装置中的集成电力管理装置。 储能装置包括：用于向可再充电装置提供电力的能量存储部件; 以及整体地连接到能量存储部件的功率管理单元（PMU），用于将具有输入电压和低输入RMS电流的大功率输入变换成具有输出电压的高功率输出 以及高输出RMS电流，其中所述高功率输入等于所述大功率输出，并且其中所述高功率输出被配置为对所述能量存储部件充电。 优选地，PMU被配置为最小化电阻性损耗，其中电阻性损耗被指定为高输出RMS电流（IRMS2）的平方和积分PMU与能量存储部件之间的输出电路电阻的数学乘积，以及 其中数学乘法符号地被定义为与大功率输出相关联的IRMS2×R。

    Method and device for fast-charging of rechargeable batteries
    28.
    发明授权
    Method and device for fast-charging of rechargeable batteries 有权
    充电电池快速充电的方法和装置

    公开(公告)号：US09368984B2

    公开(公告)日：2016-06-14

    申请号：US14811933

    申请日：2015-07-29

    Applicant: StoreDot Ltd.

    Inventor： Daniel Aronov ,  Leonid Krasovitsky ,  Doron Burshtain

    IPC: H02J7/00 ,  H02J7/14

    CPC classification number: H02J7/0036 ,  H02J7/00 ,  H02J7/0021 ,  H02J7/007 ,  H02J7/0077 ,  H02J7/0078 ,  H02J7/008 ,  H02J2007/0037 ,  H02J2007/004 ,  H02J2007/0067

    Abstract: A system and method for fast charging of a lithium-ion battery, including: continuously monitoring a state of charge (SOC) of the lithium-ion battery; during a normal mode of operation and upon detecting that the battery is at the predetermined low charge level, discontinuing the discharge; upon detecting that the battery is connected to a charger, providing charging rate of at least 4 C for at least part of charging; and upon detecting that the battery, while connected to the charger is at the predetermined high charge level, discontinue the charging, wherein the predetermined low charge level and the predetermined high charge level define a consumable capacity of the battery, wherein the consumable capacity is below 50% of the full capacity of the battery.

    Abstract translation: 一种用于锂离子电池快速充电的系统和方法，包括：连续监测锂离子电池的充电状态（SOC）; 在正常操作模式和检测到电池处于预定的低充电水平时，停止放电; 一旦检测到电池连接到充电器，至少提供充电的充电率至少为4℃; 并且在检测到电池在连接到充电器处于预定的高充电水平时停止充电，其中预定的低充电水平和预定的高充电水平限定了电池的可消耗容量，其中消耗容量低于 电池容量的50％。

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