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：US20210320354A1

公开(公告)日：2021-10-14

申请号：US17259662

申请日：2019-07-10

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Liang ZHU ,  Jeong-Rae KIM ,  AReum PARK ,  YuRi LEE

IPC: H01M50/103 ,  H01M50/136 ,  H01M4/525 ,  H01M10/0525

Abstract: A secondary Li-ion battery comprising a casing comprising as battery parts: a positive electrode comprising a powderous positive electrode active material, a negative electrode, a separator, and an electrolyte, wherein the casing is provided with means for maintaining the exterior form of the casing, and wherein the positive electrode active material has the general formula Li1+a(NixCoyMz)1−aO2, wherein M=M′1−bAb, M′ being either one or both of Al and Mg, and A being a dopant with b≤0.10, and wherein −0.03≤a≤0.03, 0.80≤×≤0.95, 0.05≤y≤0.20, z≤0.10, with x+y+z=1, and wherein the positive electrode active material has a crystallite size ≤43 nm as determined by the Sherrer equation based on the peak of the (104) plane obtained from the X-ray diffraction pattern using a Cu Kα radiation source, and wherein the positive electrode active material further comprises between 0.4 and 0.6 wt % LiOH.

公开(公告)号：US20210391574A1

公开(公告)日：2021-12-16

申请号：US17287148

申请日：2019-10-23

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Maxime BLANGERO ,  Liang ZHU ,  YuRi LEE ,  Kris DRIESEN

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

Abstract: A precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor being either one of a metal-bearing M′-hydroxide, -oxyhydroxide or -carbonate, with M′=Ni1-x-y-zMnxCOyAz with x>0, y>0, 0.70≤1-x-y-z≤0.95 and 0≤z

公开(公告)号：US20210242461A1

公开(公告)日：2021-08-05

申请号：US17236058

申请日：2021-04-21

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Maxime BLANGERO ,  Liang ZHU ,  YuRi LEE ,  Kris DRIESEN

IPC: H01M4/525 ,  H01M4/505

Abstract: The present invention relates to positive electrode active materials in rechargeable lithium-ion batteries having a difference in cobalt concentration between the center and the edge of particle.

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

Inventor： Jens Martin PAULSEN ,  Shinichi KUMAKURA ,  Liang ZHU ,  JiHye KIM ,  JiHoon KANG ,  HyeJeong YANG ,  YuRi LEE

IPC: H01M4/40 ,  H01M4/485 ,  H01M10/0525

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.

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

Inventor： Jens Martin PAULSEN ,  Shinichi KUMAKURA ,  Liang ZHU ,  JiHye KIM ,  JiHoon KANG ,  HyeJeong YANG ,  YuRi LEE

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/485

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.