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：US20240243276A1

公开(公告)日：2024-07-18

申请号：US18562316

申请日：2022-05-27

Applicant: UMICORE

Inventor： Bin-Na YUN ,  KyungSub JUNG ,  Ji-Yeong KWON ,  Woon-Hyoung RYU ,  SeungHwan LEE ,  Maxime BLANGERO

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/525 ,  H01M2004/028 ,  H01M4/623 ,  H01M10/0525

Abstract: The present invention provides a positive electrode active material for lithium-ion rechargeable batteries, wherein the positive electrode active material comprises Li, M′, and oxygen, wherein M′ comprises: —Ni in a content x between 60.0 mol % and 95.0 mol %, relative to M′; —Co in a content y, wherein 0) 0, preferably between 0.1 mol % and 4.0 mol %, relative to M′; —W in a content c between 0.1 mol % and 4.0 mol %, relative to M′; —B in a content e, wherein 0 1.0, wherein the ratio WB/WA>1.0.

公开(公告)号：US20240250257A1

公开(公告)日：2024-07-25

申请号：US18561509

申请日：2022-05-27

Applicant: UMICORE

Inventor： KyungSub JUNG ,  JiU ANN ,  Woon-Hyoung RYU

IPC: H01M4/525 ,  C01G53/00

CPC classification number: H01M4/525 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/85 ,  C01P2004/84 ,  C01P2006/40

Abstract: The present invention relates to a lithium nickel-based oxide positive electrode active material for lithium-ion secondary batteries suitable for electric vehicle and hybrid electric vehicle applications, comprising lithium transition metal-based oxide particles comprising zirconium, and a preparation method for said positive electrode material.

公开(公告)号：US20240243277A1

公开(公告)日：2024-07-18

申请号：US18562318

申请日：2022-05-27

Applicant: UMICORE

Inventor： Bin-Na YUN ,  KyungSub JUNG ,  Ji-Yeong KWON ,  Woon-Hyoung RYU ,  SeungHwan LEE ,  Maxime BLANGERO

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

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

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



Ni in a content x between 60.0 mol % and 95.0 mol %, relative to M′;
Co in a content y, wherein 0≤y≤40.0 mol %, relative to M′;
Mn in a content z, wherein 0≤z≤70.0 mol %, relative to M′;
D in a content a, wherein 0≤a≤2.0 mol %, relative to M′, wherein D comprises an element other than Li, O, Ni, Co, Mn, F, W and S;
F in a content b, wherein b>0, preferably b is between 0.1 mol % and 4.0 mol %, relative to M′;
W in a content c, wherein c>0, preferably 0.01≤c≤4.0 mol %, relative to M′;
S in a content d, wherein d>0, preferably between 0.01 mol % and 3.0 mol %, relative to M′; and,
B in a content e, wherein 0≤e≤4.0 mol %, relative to M′; and,
wherein x, y, z, a, c, and d are measured by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES),
wherein b is measured by Ion chromatography (IC),
wherein x+y+z+a+b+c+d is 100.0 mol %,

wherein the positive electrode active material has a F content FA defined as










b

(

x
+
y
+
z
+
b
+
c
+
d

)


,




W content WA defined as





c

(

x
+
y
+
z
+
b
+
c
+
d

)


,




and S content SA defined as





d

(

x
+
y
+
z
+
b
+
c
+
d

)


,




wherein the positive electrode active material has a F content FB, W content WB, and S content SB wherein FB, WB, and SB are determined by X-ray photoelectron spectroscopy (XPS) analysis, wherein FB, WB, and SB are each expressed as molar fraction compared to the sum of molar fractions of Co, Mn, Ni, F, W and S as measured by XPS analysis,

wherein the ratio FB/FA>1.0,

wherein the ratio WB/WA>1.0, and

wherein the ratio SB/SA>1.0.