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    AEROGEL-BASED ELECTRODES
    11.
    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.

    SEMI-SOLID ELECTROLYTES WITH FLEXIBLE PARTICLE COATINGS
    12.
    发明申请
    SEMI-SOLID ELECTROLYTES WITH FLEXIBLE PARTICLE COATINGS 审中-公开

    公开(公告)号：US20190207270A1

    公开(公告)日：2019-07-04

    申请号：US16268527

    申请日：2019-02-06

    Applicant: StoreDot Ltd.

    Inventor： Doron BURSHTAIN ,  Daniel ARONOV ,  Eran SELLA

    IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/0567

    CPC classification number: H01M10/4235 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2300/0091 ,  H01M2300/0094

    Abstract: Electrolytes, anode material particles and methods are provided for improving performance and enhancing the safety of lithium ion batteries. Electrolytes may comprise ionic liquid(s) as additives which protect the anode material particles and possibly bind thereto; and/or may comprise a large portion of fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component; and/or may comprise composite electrolytes having solid electrolyte particles coated by flexible ionic conductive material. Ionic liquid may be used to pre-lithiate in situ the anode material particles. Disclosed electrolytes improve lithium ion conductivity, prevent electrolyte decomposition and/or prevents lithium metallization on the surface of the anode.

    RHODAMINE BASED SALTS
    13.
    发明申请
    RHODAMINE BASED SALTS 审中-公开

    公开(公告)号：US20180291265A1

    公开(公告)日：2018-10-11

    申请号：US16005730

    申请日：2018-06-12

    Applicant: StoreDot Ltd.

    Inventor： Rony SCHWARZ ,  Evgenia Liel (Jeny) KUKS ,  Eran SELLA

    IPC: C09K11/06 ,  G02F1/1335

    CPC classification number: C09K11/06 ,  C09K2211/1048 ,  C09K2211/1088 ,  G02F1/133617 ,  G02F1/133621

    Abstract: Color conversion films for an LCD (liquid crystal display) having RGB (red, green, blue) color filters, as well as such displays, formulations, precursors and methods are provided, which improve display performances with respect to color gamut, energy efficiency, materials and costs. The color conversion films absorb backlight illumination and convert the energy to green and/or red emission at high efficiency, specified wavelength ranges and narrow emission peaks. The color conversion films may comprise at least one of: polydimethylsiloxane hydroxy terminated, dendritic polyol or polyvinylpyrrolidone.

    LITHIUM POLY(ACRYLIC ACID) BINDERS FOR ANODES OF FAST CHARGING LITHIUM ION BATTERIES
    16.
    发明申请
    LITHIUM POLY(ACRYLIC ACID) BINDERS FOR ANODES OF FAST CHARGING LITHIUM ION BATTERIES 审中-公开

    公开(公告)号：US20200255557A1

    公开(公告)日：2020-08-13

    申请号：US16711484

    申请日：2019-12-12

    Applicant: Storedot Ltd.

    Inventor： Eran SELLA ,  Maxim KAGAN ,  Ekaterina GOTLIB VAINSHTEIN

    IPC: C08F20/06 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525

    Abstract: Li-PAA (lithium poly(acrylic acid)) powders, electrode binders and methods of preparation thereof are provided. The Li-PAA powders have a low PDI (polydispersity index), e.g., smaller than 4 or 5, possibly a high Mw, and are configured to have a lithium content of above 7%, a pH between 8.5 and 9.5, or between 8.7 and 9.1 when dissolved 15% w/w in water and/or possibly a white color. Preparation methods comprise adding a PAA solution into a LiOH solution and stirring a resulting Li-PAA solution, and precipitating Li-PAA from the resulting Li-PAA solution, sieving or filtering and then drying the precipitated Li-PAA to yield the Li-PAA powder, which may be used as binder for forming electrodes. Advantageously, resulting electrodes are uniform and mechanically stable when used with metalloid anode material particles which exhibit high expansion and contraction when used in fast charging lithium ion batteries.

    ANODE PREPARATION SYSTEM APPLYING DRY ETCHING TREATMENT TO THE ANODES
    17.
    发明申请
    ANODE PREPARATION SYSTEM APPLYING DRY ETCHING TREATMENT TO THE ANODES 审中-公开

    公开(公告)号：US20200243845A1

    公开(公告)日：2020-07-30

    申请号：US16504273

    申请日：2019-07-07

    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.

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