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    PRECURSOR AND METHOD FOR PREPARING Ni BASED CATHODE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES
    2.
    发明申请
    PRECURSOR AND METHOD FOR PREPARING Ni BASED CATHODE MATERIAL FOR RECHARGEABLE LITHIUM ION BATTERIES 审中-公开

    公开(公告)号：US20200006762A1

    公开(公告)日：2020-01-02

    申请号：US16487525

    申请日：2018-02-14

    Applicant: Umicore ,  Umicore Korea Ltd.

    Inventor： Areum PARK ,  JiHye KIM ,  Song-Yi HAN ,  Jens Martin PAULSEN ,  Kyung-Tae LEE ,  Randy De Palma

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

    Abstract: A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li1−a((Niz(Ni1/2 Mn1/2)yCox)1−k Ak)1+aO2, wherein x+y+z=1, 0.1≤x≤0.4, 0.25≤z≤0.52, A is a dopant, 0≤k≤0.1, and 0.03≤a≤0.35, wherein the precursor has a crystalline size L expressed in nm, with 15≤L≤36. Also a method is described for manufacturing a positive electrode material having a general formula Li1+a′M′1−a−O2, with M′=(Niz(Ni1/2 Mn1/2)yCOx)1−k Ak, wherein x+y+z=1. 0.1≤x≤0.4, 0.25≤z≤0.52, A is a dopant, 0≤k≤0.1, and 0.01≤a′≤0.10, by sintering the lithium deficient precursor powder mixed with either one of LiOH, LiOH.H2O, in an oxidizing atmosphere at a temperature between 800 and 1000° C., for a time between 6 and 36 hrs.

    A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES
    7.
    发明公开
    A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES 审中-公开

    公开(公告)号：US20240038982A1

    公开(公告)日：2024-02-01

    申请号：US18265527

    申请日：2021-12-14

    Applicant: UMICORE

    Inventor： JiHye KIM ,  Jens Martin PAULSEN

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

    CPC classification number: H01M4/525 ,  H01M4/505 ,  C01G53/006 ,  H01M2004/021

    Abstract: A positive electrode active material for batteries which comprises Li, M′, and oxygen, wherein M′ comprises: Ni in a content a between 70.0 mol % and 95.0 mol %; Co in a content x between 0.0 mol % and 25.0 mol %; Mn in a content y between 0.0 mol % and 25.0 mol %, a dopant D in a content z between 0.0 mol % and 2.0 mol %, Al and B in a total content c between 0.1 mol % and 5.0 mol %, wherein the active material has an Al content AlA and a B content BA, wherein a, x, y, z, c, AlA and BA are measured by ICP, wherein AlA, and BA are expressed as molar fractions compared to the sum of a and x and y, wherein the positive electrode active material, when measured by XPS analysis, shows an average Al fraction AlB and an average B fraction BB, wherein the ratio AlB/AlA>1.0, wherein the ratio BB/BA>1.0, and wherein the positive electrode active material is a single-crystalline powder.

    A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES
    10.
    发明公开
    A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES 审中-公开

    公开(公告)号：US20240030423A1

    公开(公告)日：2024-01-25

    申请号：US18265630

    申请日：2021-12-17

    Applicant: UMICORE

    Inventor： Jens Martin PAULSEN ,  Shinichi KUMAKURA ,  Liang ZHU ,  JiHye KIM ,  JiHoon KANG ,  HyeJeong YANG ,  YuRi LEE

    IPC: H01M4/40 ,  H01M4/485 ,  H01M10/0525

    CPC classification number: H01M4/405 ,  H01M4/485 ,  H01M10/0525 ,  H01M2004/028

    Abstract: A positive electrode active material for lithium-ion liquid electrolyte rechargeable batteries, whereby the positive electrode active material is a powder which comprises Li, M′, and O, wherein M′ consists of Co in a content x superior or equal to 2.0 mol % and inferior or equal to 35.0 mol %, Mn in a content y superior or equal to 0 mol % and inferior or equal to 35.0 mol %, A in a content m superior or equal to 0 mol % and inferior or equal to 5 mol %, whereby A comprises at least one element of the group consisting of: Al, Ba, B, Mg, Nb, Sr, Ti, W, S, Ca, Cr, Zn, V, Y, Si, and Zr, Ni in a content of 100-x-y-m mol %, a first compound which comprises Li2WO4 and a second compound which comprises WO3, whereby the powder is a single-crystalline powder, whereby the positive electrode active material comprises Li in a molar ratio of Li/(Co+Mn+Ni+A) of at least 0.9 and at most 1.1.

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