公开(公告)号：US20230411615A1

公开(公告)日：2023-12-21

申请号：US18035135

申请日：2021-11-03

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Shinichi KUMAKURA ,  JiHoon KANG ,  TaeHyeon YANG ,  Jens Martin PAULSEN

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0565 ,  H01M10/0525

CPC classification number: H01M4/525 ,  C01G53/44 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0565 ,  H01M10/0525 ,  C01P2006/40 ,  C01P2004/03 ,  C01P2002/85 ,  C01P2004/61 ,  H01M2004/028

Abstract: The present invention provides a positive electrode active oxide material for rechargeable batteries, comprising lithium, nickel, and at least one metal selected from the group comprising manganese and cobalt, whereby said positive electrode active material has a single-crystalline morphology and said surface layer further comprises aluminum and fluorine, wherein the atomic ratio of Al to a total amount of Ni, Mn, and/or Co of 1.0 to 7.0, and wherein said surface layer has an atomic ratio of F to a total amount of Ni, Mn, and/or Co of 0.5 to 6.0, as determined by XPS analysis.

公开(公告)号：US20220271274A1

公开(公告)日：2022-08-25

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 ,  H01M4/04 ,  H01M4/525 ,  H01M4/505 ,  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：US20210005877A1

公开(公告)日：2021-01-07

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 ,  H01M4/505 ,  H01M4/525 ,  H01M4/36 ,  H01M10/0525 ,  H01M4/02

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：US20180190976A1

公开(公告)日：2018-07-05

申请号：US15738219

申请日：2016-06-30

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： Maxime BLANGERO ,  Da-In CHOI ,  Shinichi KUMAKURA

IPC: H01M4/36 ,  C01G51/00 ,  C01B25/30 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525

CPC classification number: H01M4/366 ,  C01B25/30 ,  C01G51/42 ,  C01G51/66 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/30

Abstract: A layered lithium metal oxide powder for a cathode material used in a rechargeable battery, with the general formula (1−x)[Lia-bAb]3a[CO1-cMc]3b[O2-d-eN′e]6c.xLi3PO4, with 0.0001≤x≤0.05, 0.90≤a≤1.10, 0

公开(公告)号：US20180034045A1

公开(公告)日：2018-02-01

申请号：US15545348

申请日：2016-01-20

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： Xin XIA ,  Jens PAULSEN ,  Shinichi KUMAKURA ,  Song-Yi HAN

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/525 ,  H01M4/131 ,  H01M4/505

CPC classification number: H01M4/366 ,  C01G53/50 ,  C01P2002/54 ,  C01P2002/80 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: This invention discloses a lithium metal oxide powder for a cathode material in a rechargeable battery, consisting of a core and a surface layer, the core having a layered crystal structure comprising the elements Li, M and oxygen, wherein M has the formula M=(Niz(Ni1/2Mn1/2)yCox)1-kAk, with 0.15≦x≦0.30, 0.20≦z≦0.55, x+y+z=1 and 0≦k≦0.1, wherein A is a dopant, wherein the Li content is stoichiometrically controlled with a molar ratio 0.95≦Li:M≦1.10; and wherein the surface layer comprises the elements Li, M′ and oxygen, wherein M′ has the formula M′=(Niz′(Ni1/2Mn1/2)y′Cox′)1-k′Ak′, with x′+y′+z′=1 and 0≦k′≦0.1, and wherein y′/(y′+2z′)≧1.1*[y/(y+2z)]. The surface layer may also comprise at least 3 mol % Al, the Al content in the surface layer 10 being determined by XPS.

公开(公告)号：US20210143423A1

公开(公告)日：2021-05-13

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 ,  H01M4/505 ,  H01M4/04

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：US20210119204A1

公开(公告)日：2021-04-22

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 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/04

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：US20200381727A1

公开(公告)日：2020-12-03

申请号：US16955906

申请日：2018-12-19

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Shinichi KUMAKURA ,  Jens PAULSEN ,  TaeHyeon YANG ,  HyeJeong YANG ,  Song-Yi HAN

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

Abstract: A method for preparing a N(M)C-based positive electrode materials according to the present invention comprises the following steps:—Precipitation of a metal (at least Ni— and Co—, preferably comprising Mn—) bearing precursor (MBP),—Fractionation of the MBP in a first (A) fraction and at least one second (B) fraction,—Lithiation of each of the first and second fraction, wherein the A fraction is converted into a first polycrystalline lithium transition metal oxide-based powder and the B fraction(s) is(are) converted into a second lithium transition metal oxide-based powder and, and—Mixing the first and second monolithic lithium transition metal oxide-based powder to obtain the N(M)C-based positive electrode material.

公开(公告)号：US20240014381A1

公开(公告)日：2024-01-11

申请号：US18253446

申请日：2021-11-26

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Shinichi KUMAKURA ,  TaeHyeon YANG ,  Jens Martin PAULSEN

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

CPC classification number: H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  C01G53/44 ,  H01M2004/028

Abstract: The present invention provides a positive electrode active material for lithium-ion secondary batteries, comprising: (i) a first lithium transition metal oxide, comprising single-crystalline particles having a median particle size D50A of between 3 μm and 15 μm, as determined by laser particle size analysis, and (ii) a second lithium transition metal oxide, comprising single-crystalline particles having a median particle size D50B of between 0.5 μm and 3 μm, as determined by laser particle size analysis, wherein a weight fraction φB of said second lithium transition metal oxide with respect to the total weight of said positive electrode active material is between 5 wt. % and 40 wt. %.

公开(公告)号：US20200168896A1

公开(公告)日：2020-05-28

申请号：US16303177

申请日：2017-05-23

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： Shinichi KUMAKURA ,  Liang ZHU ,  Jens Martin PAULSEN ,  Gyeong-Ok KIM

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/485 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/131 ,  C04B35/01 ,  C04B35/622 ,  C04B35/634

Abstract: A positive electrode composition for a rechargeable battery, the composition comprising a first and a second powderous lithium metal oxide, the first lithium metal oxide comprising either one or more of Ni, Mn and Co, the second lithium metal oxide powder having either: the formula LixWM′yOz, M′ being a metal having a valence state of +2 or +3, with 0