公开(公告)号：US20230361294A1

公开(公告)日：2023-11-09

申请号：US18037663

申请日：2021-11-10

Applicant: BASF SE

Inventor： Heino Sommer ,  Felix Florian Riewald ,  Philipp Kurzhals

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/04 ,  H01M4/131 ,  H01M4/62 ,  H01M10/052

CPC classification number: H01M4/525 ,  C01G53/66 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/625 ,  H01M10/052 ,  C01P2006/40 ,  C01P2002/52 ,  C01P2004/50 ,  H01M2004/028

Abstract: The present invention is related to a process for making an electrode active material wherein said process comprises the following steps: (a) Providing a hydroxide TM(OH)2 or at least one oxide TMO or at least one oxyhydroxide of TM or a combination of at least two of the foregoing wherein TM is one or more metals and contains at least 97 mol-% Ni and, optionally, in total up to 3 mol-% of at least one metal selected from Al, Ti, Zr, V, Co, Zn, Ba, and Mn; (b) mixing said hydroxide TM(OH)2 or oxide TMO or oxyhydroxide of TM or combination with a source of lithium and a source of Mg wherein the molar amount of (Li+Mg) corresponds to 75 to 95 mol-% of TM; (c) treating the mixture obtained from step (b) thermally at a temperature in the range of from 450 to 650° C., thereby obtaining an intermediate; (d) mixing the intermediate from step (c) with a source of Li and with at least one compound of a metal M1 selected from Al, Zr, Co, Mn, Nb, Ta, Mo, and W; (e) treating the mixture obtained from step (d) thermally at a temperature in the range of from 500 to 850° C.