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    PRECURSORS OF CATHODE MATERIALS FOR A RECHARGEABLE LITHIUM ION BATTERY
    11.
    发明申请
    PRECURSORS OF CATHODE MATERIALS FOR A RECHARGEABLE LITHIUM ION BATTERY 审中-公开

    公开(公告)号：US20200024153A1

    公开(公告)日：2020-01-23

    申请号：US16488717

    申请日：2018-02-07

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Dae-Hyun KIM ,  Jens PAULSEN ,  JinDoo OH ,  Maxime BLANGERO

    IPC: C01G51/00 ,  H01M4/52 ,  H01M4/525

    Abstract: A method for manufacturing a cobalt based hydroxide carbonate compound having a malachite-rosasite mineral structure, comprising the steps of: —providing an first aqueous solution comprising a source of Co, —providing a second aqueous solution comprising Na2CO3, —mixing both solutions in a precipitation reactor at a temperature above 70° C., thereby precipitating a cobalt based hydroxide carbonate compound whilst evacuating from the reactor any CO2 formed by the precipitation reaction, wherein the residence time of the compound in the reactor is between 1 and 4 hours, and—recovering the cobalt based hydroxide carbonate compound. The cobalt based hydroxide carbonate compound is used as a precursor of a lithium cobalt based oxide usable as an active positive electrode material in lithium ion batteries.

    LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES
    13.
    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：US20220271275A1

    公开(公告)日：2022-08-25

    申请号：US17623694

    申请日：2020-07-02

    Applicant: UMICORE ,  UMICORE KOREA LTD.

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

    IPC: H01M4/36 ,  H01M4/525 ,  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 particles comprising the elements: Li, a metal M′ and oxygen, wherein the metal M′ has a formula: M′=(Niz(Ni0.5Mn0.5)yCox)1-kAk, wherein A is a dopant, 0.60≤z≤0.86, 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 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, said surface layer of lithium transition metal-based oxide particles comprising a LiAlO2 phase and an LiM″1-aAlaO2 phase with M″ comprising: Ni, Mn, and Co, said LiAlO2 phase being present in the surface layer in a content superior or equal to 0.10 at % and inferior or equal to 0.30 at % with respect to the total atomic content of M′ in the positive electrode active material powder, said LiM″1-aAlaO2 phase being present in the surface layer in a content inferior to 0.14 at % with respect to the total atomic content of M′ in the positive electrode active material powder.

    LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES
    14.
    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：US20220255067A1

    公开(公告)日：2022-08-11

    申请号：US17623676

    申请日：2020-07-02

    Applicant: UMICORE ,  UMICORE KOREA LTD.

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

    IPC: H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00

    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 particles comprising the elements: Li, M′ and oxygen, wherein M′ has a formula: M′=NizMnyCoxAk, wherein A is a dopant, 0.60≤z≤0.86, 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 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 sulfate ion (SO42−) in a content superior or equal to 4500 ppm and inferior or equal to 11250 ppm.

    PRECURSORS OF CATHODE MATERIALS FOR A RECHARGEABLE LITHIUM ION BATTERY
    16.
    发明申请
    PRECURSORS OF CATHODE MATERIALS FOR A RECHARGEABLE LITHIUM ION BATTERY 审中-公开

    公开(公告)号：US20200017370A1

    公开(公告)日：2020-01-16

    申请号：US16568756

    申请日：2019-09-12

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Dae-Hyun KIM ,  Jens PAULSEN ,  JinDoo OH ,  Maxime BLANGERO

    IPC: C01G51/00 ,  H01M4/525 ,  H01M10/0525

    Abstract: A method for manufacturing a cobalt based hydroxide carbonate compound having a malachite-rosasite mineral structure, comprising the steps of: providing an first aqueous solution comprising a source of Co, providing a second aqueous solution comprising Na2CO3, mixing both solutions in a precipitation reactor at a temperature above 70° C., thereby precipitating a cobalt based hydroxide carbonate compound whilst evacuating from the reactor any CO2 formed by the precipitation reaction, wherein the residence time of the compound in the reactor is between 1 and 4 hours, and recovering the cobalt based hydroxide carbonate compound. The cobalt based hydroxide carbonate compound is used as a precursor of a lithium cobalt based oxide usable as an active positive electrode material in lithium ion batteries.

    Positive electrode materials having a superior hardness strength
    18.
    发明申请
    Positive electrode materials having a superior hardness strength 有权

    公开(公告)号：US20220255075A1

    公开(公告)日：2022-08-11

    申请号：US17718515

    申请日：2022-04-12

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Maxime BLANGERO ,  Da-In CHOI ,  WooRam CHO ,  JiHye KIM

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

    Abstract: A powderous positive electrode material for a lithium secondary battery has the general formula Li1+x[Ni1−a−b−cMaM′bM″c]1−xO2−z. M is one or more elements of the group Mn, Zr and Ti. M′ is one or more elements of the group Al, B and Co. M″ is a dopant different from M and M′, and x, a, b and c are expressed in mol with −0.02≤x≤0.02, 0≤c≤0.05, 0.10≤(a+b)≤0.65 and 0≤z≤0.05. The material has an unconstrained cumulative volume particle size distribution value (Γ0(D10P=0)), a cumulative volume particle size distribution value after having been pressed at a pressure of 200 MPa (ΓP(D10P=200)) and a cumulative volume particle size distribution value after having been pressed at a pressure of 300 MPa (ΓP(D10P=300)). When ΓP(D10P=200) is compared to Γ0(D10P=0), the relative increase in value is less than 100%. When ΓP(D10P=300) is compared to Γ0(D10P=0), the relative increase in value is less than 120%.

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