公开(公告)号：US20220190334A1

公开(公告)日：2022-06-16

申请号：US17605288

申请日：2020-04-24

Applicant: UMICORE ,  UMICORE KOREA LTD.

Inventor： Randy DE PALMA ,  Kasper LAMBRIGHS ,  Dae-Hyun KIM ,  HyeJeong YANG

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

Abstract: This invention relates to a process for manufacturing lithium nickel cobalt oxide-based cathode compounds for lithium ion secondary batteries. As part of this process, nickel, cobalt, and optionally manganese-bearing precursor compounds are lithiated and sintered at a high temperature. When cooled down, a high cooling rate will benefit the throughput of the process and the economics. It has however been found that the cooling rate should not exceed 10° C./min in what has been determined to be a critical temperature domain, ranging from 700° C. to 550° C.

公开(公告)号：US20250002369A1

公开(公告)日：2025-01-02

申请号：US18703517

申请日：2022-10-20

Applicant: Umicore

Inventor： Jens Martin PAULSEN ,  Kris DRIESEN ,  Daniël NELIS ,  Randy DE PALMA ,  Kasper LAMBRIGHS ,  Jong-Won SHIN

IPC: C01G53/00 ,  H01M4/02 ,  H01M4/525

Abstract: Method for preparing a precursor material for a Li-containing cathode active material for a battery, wherein the method comprises a spray pyrolysis step in which a metal oxide is produced by decomposition in a heated chamber of droplets of an aqueous solution, wherein either the metal oxide is a mixed metal oxide comprising the element Ni and one or both of the elements Co and Mn and the aqueous solution is a mixed solution of salts of Ni and of Co and/or Mn or the metal oxide is a Ni oxide and the aqueous solution is a solution of a salt of Ni, characterised in that the method comprises a spray drying step in which an aqueous slurry comprising said metal oxide is spray dried to form said precursor material.

公开(公告)号：US20230202865A1

公开(公告)日：2023-06-29

申请号：US17642034

申请日：2020-09-11

Applicant: UMICORE

Inventor： Dae-Hyun KIM ,  Jens PAULSEN ,  Kasper LAMBRIGHS ,  Randy DE PALMA ,  Liang ZHU

IPC: C01G53/00 ,  H01M10/0525

CPC classification number: C01G53/50 ,  H01M10/0525 ,  C01G53/006 ,  C01P2002/60 ,  C01P2006/40

Abstract: The present invention provides a process is presented for preparing a positive electrode active material for rechargeable lithium ion batteries. The process comprises a sintering step having a short sintering time. This improves the production throughput. More particularly, the process applies to positive electrode active material powders having a general formula Li(1+a)(NixMnyCozMec)(1−a)O2, wherein Me comprises at least one element of the group consisting of Al, Mg, Ti, Zr, W, Nb, B, and Sr, with −0.1≤a≤0.1, 0.33≤x≤0.95, 0≤y≤0.35, 0