中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

103 records (took 0.018 seconds)

    Aerogel-based electrodes
    16.
    发明授权
    Aerogel-based electrodes 有权

    公开(公告)号：US11569499B2

    公开(公告)日：2023-01-31

    申请号：US16697220

    申请日：2019-11-27

    Applicant: StoreDot Ltd.

    Inventor： Eran Sella ,  Ohad Goldbart ,  Daniel Aronov

    IPC: H01M4/38 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/29 ,  H01M10/0565 ,  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.

    ELECTRICAL CONNECTION OF ELECTRODE TABS OF AN ELECTROMECHANICAL CELL
    17.
    发明申请
    ELECTRICAL CONNECTION OF ELECTRODE TABS OF AN ELECTROMECHANICAL CELL 有权

    公开(公告)号：US20210399393A1

    公开(公告)日：2021-12-23

    申请号：US17304647

    申请日：2021-06-23

    Applicant: STOREDOT LTD.

    Inventor： Assaf Zehavi ,  Nir Dolev ,  Tzemah Kislev ,  Daniel Aronov

    IPC: H01M50/548 ,  H01M10/04

    Abstract: An electrochemical cell that may include a cathode sheet; a cathode tab that extends from the cathode sheet; an anode sheet; an anode tab that extends from the anode sheet, the second direction differs from the first direction; one or more separator sheets; and a first electrical connecting unit. The cathode sheet, the anode sheet and the one or more separator sheets are wound around a common axis to form multiple windings; wherein the one or more separator sheets separate between the anode sheet and the cathode sheet. The first electrical connecting unit mechanically and electrically contacts a first portion of a first electrode tab, the first portion belongs to a first winding of the multiple windings; wherein the first electrode tab is one of the anode tab and the cathode tab.

    Mobile layer of ionic liquid in electrolytes
    18.
    发明授权
    Mobile layer of ionic liquid in electrolytes 有权

    公开(公告)号：US10910671B2

    公开(公告)日：2021-02-02

    申请号：US16565500

    申请日：2019-09-10

    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.

    AEROGEL-BASED ELECTRODES
    19.
    发明申请
    AEROGEL-BASED ELECTRODES 审中-公开

    公开(公告)号：US20200235387A1

    公开(公告)日：2020-07-23

    申请号：US16697220

    申请日：2019-11-27

    Applicant: StoreDot Ltd.

    Inventor： Eran SELLA ,  Ohad Goldbart ,  Daniel Aronov

    IPC: H01M4/38 ,  H01M10/0525 ,  H01M10/0565 ,  H01M4/134 ,  H01M4/29

    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.

Patent Agency Ranking