EP 4367726 A1 20240515 - PROCESS FOR MAKING A COATED CATHODE ACTIVE MATERIAL, AND COATED CATHODE ACTIVE MATERIAL
Title (en)
PROCESS FOR MAKING A COATED CATHODE ACTIVE MATERIAL, AND COATED CATHODE ACTIVE MATERIAL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES BESCHICHTETEN KATHODENAKTIVMATERIALS UND BESCHICHTETES KATHODENAKTIVMATERIAL
Title (fr)
PROCÉDÉ DE FABRICATION DE MATÉRIAU ACTIF DE CATHODE REVÊTU, ET MATÉRIAU ACTIF DE CATHODE REVÊTU
Publication
Application
Priority
- EP 21184869 A 20210709
- EP 2022066241 W 20220614
Abstract (en)
[origin: WO2023280534A1] Process for making a coated electrode active material wherein said process comprises the following steps: (a) providing an electrode active material according to general formula Li1+xTM1-xO2, wherein TM is Ni or a combination of Ni and at least one of Co and Mn, and, optionally, at least one metal selected from Al, Mg, Ti and Zr, and x is in the range of from zero to 0.2, (b) contacting said electrode active material with a solution of salts of M2 wherein M2 is a combination of metals that includes Co, Cu, Ni, Zn and Mg, at a temperature in the range of from 5°C to 85°C, (c) removing the solvent from step (b), thereby obtaining a solid residue, (d) exposing the solid residue from step (c) to 3 to 10 pulses of electromagnetic radiation with a wavelength in the range of from 200 to 1400 nm, wherein the duration of the pulses is in the range of from 1 milliseconds to 2 seconds, (e) heat-treating the material so obtained in an oxygen-containing atmosphere at a temperature in the range of from 300 to 750 °C for 10 minutes to 4 hours.
IPC 8 full level
H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01)
CPC (source: EP)
H01M 4/0471 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/364 (2013.01); H01M 10/0525 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); Y02E 60/10 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 2022066241 W 20220614; EP 22733935 A 20220614