公开(公告)号：US20240006580A1

公开(公告)日：2024-01-04

申请号：US18252633

申请日：2021-12-10

Applicant: BASF SE

Inventor： Heino SOMMER ,  Christoph ERK ,  Jacob HAAG ,  James A SIOSS ,  Daniela KOEHLER ,  Kathrin MICHEL ,  Lennart Karl Bernhard GARVE ,  Benjamin Johannes Herbert BERGNER

IPC: H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62

CPC classification number: H01M4/0471 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M4/625 ,  H01M2004/028

Abstract: Disclosed herein is a process for making an electrode active material, where said process includes the following steps:



(a) Providing a hydroxide TM(OH)2 or an oxyhydroxide of TM, where TM is one or more metals and contains Mn, optionally, Co, and from 85 to 95 mol % Ni, referring to the sum of Ni, Co and Mn;
(b) Drying said hydroxide TM(OH)2 or oxyhydroxide of TM at a temperature in the range of from 400 to 600° C., thereby obtaining an oxide or oxyhydroxide of TM with a residual moisture content of from 200 to 500 ppm;
(c) Mixing said oxide or oxyhydroxide from step (b) with a source of lithium, at least one compound of Mg or Al, and at least one compound of Ti or Zr; and
(d) Treating the mixture obtained from step (c) thermally at a temperature in the range of 550 to 875° C.