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    LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES
    53.
    发明申请
    LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES 有权

    公开(公告)号：US20220278321A1

    公开(公告)日：2022-09-01

    申请号：US17623682

    申请日：2020-07-02

    Applicant: UMICORE ,  UMICORE KOREA LTD.

    Inventor： Maxime BLANGERO ,  KyungSub JUNG ,  Bin-Na YUN ,  Olesia KARAKULINA

    IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/505

    Abstract: A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particle comprising the elements: Li, M′ and oxygen, wherein M′ has a formula: M′=NizMnyCoxAk, wherein A is a dopant, 0.80≤z≤0.90, 0.05≤y≤0.20, 0.05≤x≤0.20, x+y+z+k=1, and 0≤k≤0.01, said positive electrode active material powder having a median particle size D50 ranging from 5 μm to 15 μm and a surface layer thickness ranging from 10 nm to 200 nm, said surface layer comprising sulfate ion (SO42−) in a content superior or equal to 6.78·z−4.83 wt % and inferior or equal to 6.78·z−4.33 wt % with respect to the total weight of the positive electrode active material.

    LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES
    54.
    发明申请
    LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES 有权

    公开(公告)号：US20220271282A1

    公开(公告)日：2022-08-25

    申请号：US17623729

    申请日：2020-07-02

    Applicant: UMICORE ,  UMICORE KOREA LTD.

    Inventor： Maxime BLANGERO ,  KyungSub JUNG ,  Bin-Na YUN ,  Olesia KARAKULINA

    IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/04 ,  C01G53/00

    Abstract: 1. A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide particles, said particles comprising a core and a surface layer, said surface layer being on top of said core, said particles comprising the elements: Li, M′ and oxygen, wherein M′ has a formula: M′=NizMnyCoxAk, wherein A is a dopant, 0.60≤z≤0.89, 0.05≤y≤0.20, 0.05≤x≤0.20, x+y+z+k=1, and k≤0.01, said positive electrode active material powder having a median particle size D50 ranging from 5 μm to 15 μm, a span ranging from 0.25 to 0.90, and a surface layer thickness ranging from 10 nm to 200 nm, said surface layer comprising: sulfur in a content superior or equal to 0.150 wt % and inferior or equal to 0.375 wt % with respect to the total weight of the positive electrode active material powder, and aluminum in a content superior or equal to 0.05 wt % and inferior or equal to 0.15 wt % with respect to the total weight of the positive electrode active material powder,

    Carbonate precursors for lithium nickel manganese cobalt oxide cathode material and the method of making same
    56.
    发明授权
    Carbonate precursors for lithium nickel manganese cobalt oxide cathode material and the method of making same 有权

    公开(公告)号：US11380882B2

    公开(公告)日：2022-07-05

    申请号：US15517276

    申请日：2015-09-30

    Applicant: Umicore ,  Umicore Korea LTD

    Inventor： Jin Hu ,  HeonPyo Hong ,  Jens Paulsen ,  JinDoo Oh ,  Daniël Nelis ,  Eric Robert

    IPC: H01M4/1391 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00 ,  H01M4/485 ,  H01M10/052

    Abstract: A method for producing a M-carbonate precursor of a Li-M oxide cathode material in a continuous reactor, wherein M=NixMnyCozAn, A being a dopant, with x>0, y>0, 0≤z≤0.35, 0≤n≤0.02 and x+y+z+n=1, the method comprising the steps of: —providing a feed solution comprising Ni-, Mn-, Co- and A-ions, and having a molar metal content M″ feed, —providing an ionic solution comprising either one or both of a carbonate and a bicarbonate solution, the ionic solution further comprising either one or both of Na- and K-ions, —providing a slurry comprising seeds comprising M′-ions and having a molar metal content M′ seeds, wherein M′=Nix′Mny′Coz′A′n′, A′ being a dopant, with 0≤x′≤1, 0≤y′≤1, 0≤z′≤1, 0≤n′≤1 and x′+y′+z′+n′=1, and wherein the molar ratio M′ seeds/M″ feed is between 0.001 and 0.1, —mixing the feed solution, the ionic solution and the slurry in the reactor, thereby obtaining a reactive liquid mixture, —precipitating a carbonate onto the seeds in the reactive liquid mixture, thereby obtaining a reacted liquid mixture and the M-carbonate precursor, and —separating the M-carbonate precursor from the reacted liquid mixture.

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