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1. WO2020069728 - SILICON PARTICLES HAVING A SPECIFIC CHLORINE CONTENT, AS ACTIVE ANODE MATERIAL FOR LITHIUM ION BATTERIES

Publication Number WO/2020/069728
Publication Date 09.04.2020
International Application No. PCT/EP2018/076809
International Filing Date 02.10.2018
Chapter 2 Demand Filed 02.09.2019
IPC
C01B 33/02 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33Silicon; Compounds thereof
02Silicon
C01B 33/03 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
33Silicon; Compounds thereof
02Silicon
021Preparation
027by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
03by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent
H01M 4/38 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
38of elements or alloys
H01M 10/0525 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/42 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 4/134 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
134Electrodes based on metals, Si or alloys
CPC
C01B 33/03
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
33Silicon; Compounds thereof
02Silicon
021Preparation
027by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material
03by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent
C01P 2004/51
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
51Particles with a specific particle size distribution
C01P 2004/61
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
60Particles characterised by their size
61Micrometer sized, i.e. from 1-100 micrometer
C01P 2004/62
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
60Particles characterised by their size
62Submicrometer sized, i.e. from 0.1-1 micrometer
C01P 2004/64
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2004Particle morphology
60Particles characterised by their size
64Nanometer sized, i.e. from 1-100 nanometer
C01P 2006/80
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2006Physical properties of inorganic compounds
80Compositional purity
Applicants
  • WACKER CHEMIE AG [DE]/[DE]
Inventors
  • PFEIFFER, Jürgen
  • HANELT, Eckhard
  • HERTLEIN, Harald
  • HESSE, Karl
  • MAURER, Robert
Agents
  • EGE, Markus
  • BELZ, Ferdinand
  • BITTERLICH, Bianca
  • BUDCZINSKI, Angelika
  • DEFFNER-LEHNER, Maria
  • FRÄNKEL, Robert
  • FRITZ, Helmut
  • MAI, Marit
  • MIESKES, Klaus
  • POTTEN, Holger
  • RIMBÖCK, Karl-Heinz
  • SCHUDERER, Michael
Priority Data
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) SILIZIUM-PARTIKEL MIT SPEZIEFISCHEM CHLOR-GEHALT ALS ANODENAKTIVMATERIAL FÜR LITHIUM-IONEN-BATTERIEN
(EN) SILICON PARTICLES HAVING A SPECIFIC CHLORINE CONTENT, AS ACTIVE ANODE MATERIAL FOR LITHIUM ION BATTERIES
(FR) PARTICULES DE SILICIUM AYANT UNE TENEUR EN CHLORE SPÉCIFIQUE COMME MATÉRIAU ACTIF D’ANODE POUR DES BATTERIES LITHIUM-ION
Abstract
(DE)
Ein Gegenstand der Erfindung sind Anodenaktivmaterialien für Lithium- Ionen-Batterien, dadurch gekennzeichnet, dass die Anodenaktivmaterialien ein oder mehrere nicht-aggregierte Siliziumpartikel mit einem Chlor-Gehalt von 5 bis 200 ppm und eine volumengewichtete Partikelgrößenverteilung mit Durchmesser-Perzentilen d50 von 0,5 μm bis 10,0 μm umfassen.
(EN)
The invention relates to active anode materials for lithium ion batteries, which are characterized in that the active anode material comprise one or more non-aggregated silicon particles with a chlorine content of 5 to 200 ppm and a volume-weighted particle size distribution with diameter percentiles d50 of 0.5 μm to 10.0 μm.
(FR)
L’invention concerne des matériaux actifs d’anode pour des batteries lithium-ion, caractérisés en ce que les matériaux actifs d’anode comprennent une ou plusieurs particules de silicium non agrégées comprenant une teneur en chlore de 5 à 200 ppm et une distribution de tailles de particules pondérée en volume ayant des percentiles de diamètre d50 de 0,5 μm à 10,0 μm.
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