公开(公告)号：WO2022128805A2

公开(公告)日：2022-06-23

申请号：PCT/EP2021/085261

申请日：2021-12-10

Applicant: BASF SE

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

IPC: C01G53/00 ,  H01M4/00 ,  C01G53/04 ,  C01G53/006 ,  C01G53/42 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/82 ,  H01M4/525

Abstract: Process for making an electrode active material wherein said process comprises the follow-ing steps: (a) Providing a hydroxide TM(OH)2 or an oxyhydroxide of TM wherein TM is one or more metals and contains Mn and, 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 and with at least one compound of Mg or Al and with at least one compound of Ti or Zr, (d) treating the mixture obtained from step (c) thermally at a temperature in the range of from 550 to 875°C.

公开(公告)号：WO2022069236A1

公开(公告)日：2022-04-07

申请号：PCT/EP2021/075438

申请日：2021-09-16

Applicant: BASF SE

Inventor： ERK, Christoph ,  SOMMER, Heino ,  MICHEL, Kathrin ,  RAUSCHER, Frank ,  BORN, Nils-Olof, Joachim ,  ROHDE, Wolfgang ,  SUELING, Carsten ,  GERKE, Birgit

IPC: C01G53/00

Abstract: Process for the manufacture of a fluoride doped cathode active material wherein said process comprises the steps of (a) providing a particulate oxide or (oxy)hydroxide of TM wherein TM comprises nickel and at least one metal selected from cobalt and manganese, wherein said particulate oxide or (oxy)hydroxide has an average particle diameter (D50) in the range of from 3 to 16 µm, (b) providing a source of lithium that contains 0.01 to 2.5 % by weight of fluoride, uniformly dispersed within said source of lithium, (c) mixing said oxide or (oxy)hydroxide of TM with said fluoride-containing source of lithium and, optionally, with additional source of lithium containing less fluoride, and, optionally, with one or more dopants based on at least one metal other than lithium, (d) treating the mixture obtained from step (c) thermally.