公开(公告)号：US20210028454A1

公开(公告)日：2021-01-28

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 ,  H01M10/0525

Abstract: A lithium cobalt-based oxide cathode active material powder comprising particles having a median particle size D50 of superior or equal to 20 μm, preferably 25 μm, and inferior or equal to 45 μm, said particles having an averaged circularity of superior or equal to 0.85 and inferior 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 superior or equal to 0.85 and inferior 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：US20200006771A1

公开(公告)日：2020-01-02

申请号：US16568647

申请日：2019-09-12

Applicant: Umicore ,  Umicore Korea Ltd.

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

IPC: H01M4/525 ,  H01M10/0525

Abstract: A cobalt based hydroxide carbonate precursor compound of a lithium cobalt based oxide, which is usable as an active positive electrode material in lithium ion batteries is described. The compound comprises a doped malachite-rosasite mineral structure and has a general formula [Co1-aAa]2(OH)2CO3, wherein A is one or more of Ni, Mn, Al, Ti, Zr and Mg, with a≤0.05.

公开(公告)号：US20180254525A1

公开(公告)日：2018-09-06

申请号：US15759974

申请日：2016-09-15

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： Xin XIA ,  Maxime BLANGERO ,  Jing ZHANG ,  Wenlong YANG ,  Jens PAULSEN

IPC: H01M10/0569 ,  H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0567

Abstract: A lithium secondary cell having an operating voltage ≥4.35 sV, comprising a cathode comprising a doped L1CoO2 active material, an anode comprising graphite, and an electrolyte comprising a carbonate-based solvent, a lithium salt and both a succinonitrile (SN) and a lithium bis(oxalato)borate (LiBOB) additive wherein during the discharge at 45° C. from a state of charge (SOC) of 100% at 4.5V to a SOC of 0 at 3V at a C/10 rate the difference of the SOC at 4.42V and 4.35V is at least 7% but less than 14%, and wherein the active material is doped by at least 0.5 mole % of either one or more of Mn, Mg and Ti.

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：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.

公开(公告)号：US20210028455A1

公开(公告)日：2021-01-28

申请号：US16931513

申请日：2020-07-17

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： KyeongSe SONG ,  Maxime BLANGERO

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

Abstract: A lithium cobalt-based oxide cathode active material powder comprising particles having a median particle size D50 of superior or equal to 20 μm, preferably 25 μm, and inferior or equal to 45 μm, said particles having an averaged circularity of superior or equal to 0.85 and inferior 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, the cathode active material powder having a specific floating capacity of at most 80 mAh/g.

公开(公告)号：US20190074511A1

公开(公告)日：2019-03-07

申请号：US15757035

申请日：2016-08-25

Applicant: Umicore ,  Umicore Korea Ltd.

Inventor： Maxime BLANGERO ,  DongGun PARK ,  Jens PAULSEN ,  Jing ZHANG

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

Abstract: A crystalline precursor compound is described 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(Ni1/4 Mn1/4)y M′x)1−kAk)1+a02, wherein x+y+z=1, 0

公开(公告)号：US20220278321A1

公开(公告)日：2022-09-01

申请号：US17623682

申请日：2020-07-02

Applicant: UMICORE ,  UMICORE KOREA LTD.

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

IPC: H01M4/525 ,  H01M10/0525 ,  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 particle comprising the elements: Li, M′ and oxygen, wherein M′ has a formula: M′=NizMnyCoxAk, wherein A is a dopant, 0.80≤z≤0.90, 0.05≤y≤0.20, 0.05≤x≤0.20, x+y+z+k=1, and 0≤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 sulfate ion (SO42−) in a content superior or equal to 6.78·z−4.83 wt % and inferior or equal to 6.78·z−4.33 wt % with respect to the total weight of the positive electrode active material.

公开(公告)号：US20220271282A1

公开(公告)日：2022-08-25

申请号：US17623729

申请日：2020-07-02

Applicant: UMICORE ,  UMICORE KOREA LTD.

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

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

Abstract: 1. 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≤0.89, 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 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,

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.