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公开(公告)号：US20250062324A1
公开(公告)日：2025-02-20
申请号：US18721464
申请日：2023-01-16
Applicant: BASF SE
Inventor： Ryosuke TAKEUCHI , Kathrin MICHEL
Abstract: Disclosed herein is a process for the manufacture of coated cathode active materials including the steps of: (a) providing a particulate electrode active material based on a lithiated oxide according to general formula Li1+xTM1−xO2 and x is in the range of from zero to 0.2, (b) treating said particulate electrode active material with water, and subsequently removing the majority of the water by a solid-liquid separation method, thereby obtaining a solid residue, (c) treating the solid residue material from step (b) with a source of boron and with at least one compound of Mg, Ca, Sr, Ba, and Zn selected from the respective sulfates, oxides, and hydroxides, thereby obtaining an intermediate, and (d) treating the intermediate obtained from step (c) thermally.
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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
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.-
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.
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