公开(公告)号：US20230378428A1

公开(公告)日：2023-11-23

申请号：US18247067

申请日：2021-09-16

Applicant: BASF SE

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

IPC: H01M4/04 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/0471 ,  H01M4/525 ,  H01M4/625 ,  H01M4/622 ,  H01M10/0525 ,  H01M10/54

Abstract: Described herein is a process for the manufacture of a fluoride doped cathode active material, where said process includes the steps of



(a) providing a particulate oxide or (oxy)hydroxide of transition metals (TM), where TM includes nickel and at least one metal selected from cobalt and manganese, and where said particulate oxide or (oxy)hydroxide has an average particle diameter (D50) in a range of from 3 to 16 μm,
(b) providing a source of lithium that includes 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-including source of lithium and, optionally, with an additional source of lithium including less fluoride, and, optionally, with one or more dopants based on at least one metal other than lithium, and
(d) treating the mixture obtained from step (c) thermally.