A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE SOLID-STATE BATTERIES

    公开(公告)号:US20250046807A1

    公开(公告)日:2025-02-06

    申请号:US18718184

    申请日:2022-12-15

    Applicant: Umicore

    Abstract: A positive electrode active material can be used for a solid-state rechargeable battery. The positive electrode active material comprises Li, M′, and oxygen. M′ comprises Ni in a content x, Co in a content y, Mn in a content z, an element other than Li, O, Ni, Co, Mn, Al, B, and W in a content a, B in a content b, Al in a content c, and W in a content d, wherein 50.0≤x≤95.0 mol %, 0≤y≤40.0 mol %, 0≤z≤70.0 mol %, 0≤a≤2.0 mol %, 0.01≤b≤1.6 mol %, 0.00≤c≤1.5 mol %, and 0.00≤d≤1.5 mol %, all relative to M′. The positive electrode active material has a B content BA defined as b ( x + y + z + b + c + d ) , and a content BB. BB is expressed as molar fraction compared to the sum of molar fractions of Ni, Mn, Co, B, Al, and W, as measured by XPS analysis, wherein the ratio BB/BA>10.0.

    A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES

    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

    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.

    A POSITIVE ELECTRODE ACTIVE MATERIAL FOR SOLID-STATE RECHARGEABLE BATTERIES

    公开(公告)号:US20250054986A1

    公开(公告)日:2025-02-13

    申请号:US18720748

    申请日:2022-12-21

    Applicant: Umicore

    Abstract: The present invention relates to a positive electrode active material for solid-state rechargeable batteries, comprising lithium, oxygen, nickel, and at least one metal selected from the group comprising manganese and cobalt, wherein characterized in that said positive electrode active material further comprises: —fluorine and has an atomic ratio of F to the total amount of Ni, Mn, and/or Co between 0.05 to 3.0, as determined by XPS analysis, and —carbon, wherein the carbon contents are from than 370 ppm to 5000 ppm, by the total weight of said positive electrode active material, as determined by a carbon analyzer.

    A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE BATTERIES

    公开(公告)号:US20240030408A1

    公开(公告)日:2024-01-25

    申请号:US18265599

    申请日:2021-12-17

    Applicant: UMICORE

    CPC classification number: H01M4/364 H01M4/525 H01M4/485 H01M2004/028

    Abstract: A positive electrode active material for solid state rechargeable batteries, whereby the positive electrode active material is a powder which comprises Li, NI, and 0, 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, whereby the positive electrode active material has a tap density which is at least 1.0 gr/cm3 and at most 3.0 g/cm3.

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