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1. WO2020073081 - DISPERSIBLE EDGE FUNCTIONALISED GRAPHENE PLATELETS

Publication Number WO/2020/073081
Publication Date 16.04.2020
International Application No. PCT/AU2019/051076
International Filing Date 04.10.2019
IPC
C01B 32/198 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
15Nanosized carbon materials
182Graphene
198Graphene oxide
C01B 32/23 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
20Graphite
21After-treatment
23Oxidation
C01B 32/15 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
15Nanosized carbon materials
C01B 32/174 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
15Nanosized carbon materials
158Carbon nanotubes
168After-treatment
174Derivatisation; Solubilisation; Dispersion in solvents
C08K 3/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
02Elements
04Carbon
H01M 4/133 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
133Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
CPC
C01B 2204/04
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
04Specific amount of layers or specific thickness
C01B 2204/22
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
20Graphene characterized by its properties
22Electronic properties
C01B 2204/30
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
20Graphene characterized by its properties
30Purity
C01B 2204/32
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
20Graphene characterized by its properties
32Size or surface area
C01B 32/182
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
15Nano-sized carbon materials
182Graphene
C01B 32/184
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
15Nano-sized carbon materials
182Graphene
184Preparation
Applicants
  • UNIVERSITY OF WOLLONGONG [AU]/[AU]
Inventors
  • WALLACE, Gordon George
  • OFFICER, David Leslie
  • JALILI, Rouhollah
  • WALKER, Ashley John
  • RYDER, Gregory Michael
  • FAISAL, Shaikh Nayeem
Agents
  • DAVIES COLLISON CAVE PTY LTD
Priority Data
201890379308.10.2018AU
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DISPERSIBLE EDGE FUNCTIONALISED GRAPHENE PLATELETS
(FR) PLAQUETTES DE GRAPHÈNE DISPERSIBLES, À BORDS FONCTIONNALISÉS
Abstract
(EN)
The present disclosure provides a dispersible graphene platelet and a method of making same. The structure of the graphene platelet 10 comprises a base layer 1 of graphene on which at least one discontinuous layer 2, 3, 4 of graphene is stacked, with each layer of graphene above the base layer having a smaller surface area than the layer it is stacked upon. The edges of the base layer and the discontinuous layers stacked upon it are all at least partially functionalised 5, providing a structure with graphene-like properties owing to the base layer and relatively high dispersibility owing to the increased amount of functionalised groups on each platelet. The platelets may be used for a number of applications, for example in the production of electrodes or composite materials.
(FR)
La présente invention concerne une plaquette de graphène dispersible et un dispositif pour sa fabrication. La structure de la plaquette de graphène 10 comprend une couche de base 1 de graphène sur laquelle au moins une couche discontinue 2, 3, 4 de graphène est empilée, chaque couche de graphène au-dessus de la couche de base présentant une surface plus petite que la couche sur laquelle elle est empilée. Les bords de la couche de base et des couches discontinues empilées sur celle-ci sont tous au moins partiellement fonctionnalisés 5, permettant ainsi d'obtenir une structure présentant des propriétés de type graphène grâce à la couche de base et une dispersibilité relativement élevée grâce à la quantité accrue de groupes fonctionnalisés sur chaque plaquette. Les plaquettes peuvent être utilisées pour un certain nombre d'applications, par exemple dans la production d'électrodes ou de matériaux composites.
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