公开(公告)号：US12294078B2

公开(公告)日：2025-05-06

申请号：US17623688

申请日：2020-07-02

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Shinichi Kumakura ,  TaeHyeon Yang ,  Jens Paulsen ,  Maxime Blangero ,  Elsye Agustina

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

Abstract: A positive electrode active material powder suitable for lithium-ion batteries, comprising lithium transition metal-based oxide 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′=(NizMnyCox)1-kAk, wherein A is a dopant, 0.55≤z≤0.89, 0.05≤y≤0.25, 0.05≤x≤0.25, x+y+z+k=1, and k≤0.01, said positive electrode active material powder having a mean particle size D50 ranging from 3 μm to 15 μm and a surface layer thickness ranging from 5 nm to 200 nm. The surface layer comprises aluminum in a content superior or equal to 0.04 wt % and inferior or equal to 0.15 wt % relative to the total weight of the positive electrode active material.

公开(公告)号：US12294077B2

公开(公告)日：2025-05-06

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 ,  C01G53/00 ,  C01G53/50 ,  H01M4/02 ,  H01M4/04 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525

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.

公开(公告)号：US12255326B2

公开(公告)日：2025-03-18

申请号：US17041022

申请日：2019-03-13

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Jens Paulsen ,  Shinichi Kumakura ,  TaeHyeon Yang ,  Dae-Hyun Kim ,  HyeJeong Yang

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/505 ,  H01M4/02

Abstract: A method for preparing a powderous positive electrode material comprising single crystal monolithic particles and having a general formula
Li1+a((Niz(Ni1/2Mn1/2)yCox)1-k Ak)1-aO2, wherein A is a dopant, −0.03≤a≤0.06, 0.05≤x≤0.35, 0.10≤z≤0.95, x+y+z=1 and k≤0.05 is described. The method comprises providing a mixture comprising a Ni- and Co- bearing precursor and a Li bearing precursor, subjecting the mixture to a multiple step sintering process whereby in the final sintering step a sintered lithiated intermediate material is obtained comprising agglomerated primary particles having a primary particle size distribution with a D50 between 2.0 and 8.0 μm, subjecting the lithiated intermediate material to a wet ball milling step to deagglomerate the agglomerated primary particles and obtain a slurry comprising deagglomerated primary particles, separating the deagglomerated primary particles from the slurry, and heat treating the deagglomerated primary particles at a temperature between 300° C. and at least 20° C. below the temperature in the final sintering step.

公开(公告)号：US12002952B2

公开(公告)日：2024-06-04

申请号：US17041266

申请日：2019-03-06

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： JiHye Kim ,  Jens Paulsen ,  AReum Park ,  Hee-Sung Gil

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/133 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/525 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/028

Abstract: A powderous positive electrode material for lithium ion batteries, comprising crystalline lithium transition metal-based oxide particles having a general formula Li1+a ((Niz (Ni0.5Mn0.5)y Cox)1−k Ak)1−a O2, wherein A is a dopant, −0.030≤a≤0.025, 0.10≤x≤0.40, 0.25≤z≤0.52, x+y+z=1 and k≤0.01, wherein the crystalline powder has a crystallite size less than 33 nm as determined by the Scherrer equation based on the peak of the (104) plane obtained from the X-ray diffraction pattern using a Cu K α radiation source, and wherein the molar ratio MR(Ni) of Ni versus the total transition metal content in a cross section of a particle is higher in the surface area than in the center area of the particle, as determined by EDS analysis.

公开(公告)号：US11949096B2

公开(公告)日：2024-04-02

申请号：US16976884

申请日：2019-02-25

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Dae-Hyun Kim ,  Jens Paulsen ,  Shinichi Kumakura ,  YuRi Lee ,  Liang Zhu ,  TaeHyeon Yang

IPC: H01M4/131 ,  H01M4/134 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/131 ,  H01M4/134 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: A bimodal lithium transition metal oxide based powder mixture comprising a first and a second lithium transition metal oxide based powder. The first powder comprises a material A having a layered crystal structure comprising the elements Li, a transition metal based composition M and oxygen and has a particle size distribution with a span

公开(公告)号：US20240097122A1

公开(公告)日：2024-03-21

申请号：US18268302

申请日：2021-10-26

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： KyungSub JUNG ,  Maxime BLANGERO ,  Olesia KARAKULINA ,  Woon-Hyoung RYU ,  Ji-Yeong KWON

IPC: H01M4/38 ,  H01M4/485 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/382 ,  H01M4/485 ,  H01M4/5815 ,  H01M10/0525 ,  H01M2004/028

Abstract: The present invention provides a positive electrode active material powder for lithium-ion rechargeable batteries, wherein the positive electrode active material comprises Li, M′, S and O, wherein M′ consists of:



Ni in a content x between 60.0 mol % and 95.0 mol %, relative to M′
Co in a content y between 0.0 mol % and 25.0 mol %, relative to M′,
Mn in a content z between 0.0 mol % and 25.0 mol %, relative to M′,
W in a content a of 0.05 mol % or more, relative to M′
D in a content b between 0.0 mol % and 2.0 mol %, relative to M′, wherein D comprises at least one element of the group consisting of: Al, B, Ba, Ca, Cr, F, Fe, Mg, Mo, Nb, Si, Sr, Ti, Y, V, Zn and Zr, and,
wherein x, y, z, a, and b are measured by ICP,
wherein x+y+z+a+b is 100.0 mol %,


wherein the positive electrode active material comprises soluble sulfur in a content of 0.30 mol % or more, relative to M′.

公开(公告)号：US11916224B2

公开(公告)日：2024-02-27

申请号：US16976879

申请日：2019-02-25

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Dae-Hyun Kim ,  Jens Paulsen ,  Shinichi Kumakura ,  YuRi Lee ,  Liang Zhu ,  TaeHyeon Yang

IPC: H01M4/525 ,  H01M4/131 ,  H01M4/134 ,  H01M4/36 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/131 ,  H01M4/134 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: A bimodal lithium transition metal oxide based powder mixture comprises a first and a second lithium transition metal oxide based powder. The first powder comprises particles of a material A comprising the elements Li, a transition metal based composition M and oxygen. The first powder has a particle size distribution characterized by a (D90−D10)/D50

公开(公告)号：US11670769B2

公开(公告)日：2023-06-06

申请号：US16931501

申请日：2020-07-17

Applicant: Umicore ,  Umicore Korea Ltd

Inventor： KyeongSe Song ,  Maxime Blangero

IPC: H01M4/525 ,  H01M4/04 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/525 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/364 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/021

Abstract: A lithium cobalt-based oxide cathode active material powder comprising particles having a median particle size D50 of greater than or equal to 20 μm, preferably 25 μm, and less than or equal to 45 μm, said particles having an averaged circularity of greater than or equal to 0.85 and less than or equal to 1.00, said particles having a general formula Li1+aCo1-x-y-zAlxM′yMezO2, wherein M′ and Me comprise at least one element of the group consisting of: Ni, Mn, Nb, Ti, W, Zr, and Mg, with −0.01≤a≤0.01, 0.002≤x≤0.050, 0≤y≤0.020 and 0≤z≤0.050, said lithium cobalt-based oxide particles having a R-3m structure and (018) diffraction peak asymmetry factor AD(018) of greater than or equal to 0.85 and less than or equal to 1.15, said diffraction peak asymmetry factor being obtained by a synchrotron XRD spectrum analysis with an emission wavelength λ value equal to 0.825 Å.

公开(公告)号：US11522187B2

公开(公告)日：2022-12-06

申请号：US16956025

申请日：2018-12-04

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Yagmur Celasun ,  Jens Paulsen ,  Shinichi Kumakura ,  Areum Park ,  Jukyoung Lee ,  Taehyeon Yang

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/04 ,  H01M10/0525

Abstract: The invention provides a positive electrode active material for a lithium ion battery, comprising a lithium transition metal-based oxide powder, the powder comprising single crystal monolithic particles comprising Ni and Co and having a general formula Li1+a ((Niz (Ni1/2 Mn1/2)y Cox)1−kAk)1-a 02, wherein A is a dopant, −0.02

公开(公告)号：US20220271328A1

公开(公告)日：2022-08-25

申请号：US17623720

申请日：2020-07-02

Applicant: UMICORE ,  UMICORE KOREA LTD.

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

IPC: H01M10/0525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/131

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≤0.90, 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 sulfate ion (SO42−) in a content superior or equal to 4500 ppm and inferior or equal to 11250 ppm.