Surface-treated graphene, surface-treated graphene/organic solvent dispersion liquid, surface-treated graphene/electrode active material composite particles, and electrode paste

Koichiro Manabe

Patent

Atlas literature

Patent

US 10,714,754

Surface-treated graphene, surface-treated graphene/organic solvent dispersion liquid, surface-treated graphene/electrode active material composite particles, and electrode paste

Koichiro Manabe

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

5 independent · 10 dependent

1
Independentsurface-treated graphenecompound of general formula (1) or neutralized salt thereof
A surface-treated graphene, comprising a graphene and a compound represented by the following general formula (1) or a neutralized salt thereof SVG 16077627.02-14-2020.K₆S₉₂₅H₂LXEAPX4.CLM.1.svg 3.26 7.18 Black and white wherein A represents a phenolic hydroxy group-free benzene-based aromatic group having a condensation number of 1 to 4, R' represents a direct bond, a divalent hydrocarbon group having 1 to 12 carbon atoms, or a divalent organic group having 1 to 12 carbon atoms and having a structure selected from the group consisting of an ether bond, an ester bond, an alcohol structure, and a carbonyl structure, R 2 and R 3 each independently represent a hydrogen atom, a hydrocarbon group having 1 to 12 carbon atoms, or an organic group having 1 to 12 carbon atoms and having a structure selected from the group consisting of an ether bond, an ester bond, an alcohol structure, and a carbonyl structure, and n represents an integer of 1 to 6. Currently amended
1. 2
  Dependent← claim 1surface-treated graphenecompound of general formula (1) or neutralized salt thereof
  The surface-treated graphene according to claim 1, wherein 3 % by mass or more and 50 % by mass or less, relative to the graphene, of the compound represented by the general formula (1) or a neutralized salt thereof is attached to the graphene. Original
2. 4
  Dependent← claim 1surface-treated graphene
  The surface-treated graphene according to claim 1, having an element ratio of nitrogen to carbon (N/C ratio) of 0.005 or more and 0.020 or less as measured by X-ray photoelectron spectroscopy. Previously presented
3. 6
  Dependent← claim 1surface-treated graphenecompound of general formula (1) or neutralized salt thereof
  The surface-treated graphene according to claim 1, wherein in the general formula (1), R ' is an alkylene group having 1 to 12 carbon atoms, an alkenoxyalkylene group having 2 to 12 carbon atoms, or a direct bond. Previously presented
4. 7
  Dependent← claim 1surface-treated graphenecompound of general formula (1) or neutralized salt thereof
  The surface-treated graphene according to claim 1, wherein in the general formula (1), R 2 and R 3 are each a hydrogen atom, a phenyl group, an alkyl group having 1 to 12 carbon atoms, or an alkoxyalkyl group having 2 to 12 carbon atoms. Previously presented
5. 8
  Dependent← claim 1surface-treated graphenecompound of general formula (1) or neutralized salt thereof
  The surface-treated graphene according to claim 1, wherein the compound represented by the general formula (1) is a compound selected from the group consisting of compounds represented by the following formulae (2) to (5): SVG 16077627.02-14-2020.K₆S₉₂₅H₂LXEAPX4.CLM.2.svg 3.19 4.56 Black and white Currently amended
6. 9
  Dependent← claim 1surface-treated grapheneorganic solvent
  A surface-treated graphene/organic solvent dispersion liquid, comprising the surface-treated graphene according to claim 1 dispersed in an organic solvent. Currently amended
7. 11
  Dependent← claim 1surface-treated grapheneelectrode active material particles
  Surface-treated graphene/electrode active material composite particles, comprising a composite of the surface-treated graphene according to claim 1 and electrode active material particles. Previously presented
8. 12
  Dependent← claim 1surface-treated grapheneelectrode active material particlesbinder
  An electrode paste, comprising the surface-treated graphene according to claim 1, electrode active material particles, and a binder. Previously presented
3
Independent
. Canceled
5
Independent
. Canceled
13
Independentsurface-treated graphenecompound of general formula (1) or neutralized salt thereofgraphene oxide
A method for producing a surface-treated graphene, comprising mixing graphene oxide with a compound represented by the following general formula (1) or a neutralized salt thereof, and subsequently comprising a reduction step of subjecting the graphene oxide to reduction treatment: SVG 16077627.02-14-2020.K₆S₉₂₅H₂LXEAPX4.CLM.3.svg 1.5 3.78 Black and white wherein A represents a phenolic hydroxy group-free benzene-based aromatic group having a condensation number of 1 to 4, R' represents a direct bond, a divalent hydrocarbon group having 1 to 12 carbon atoms, or a divalent organic group having 1 to 12 carbon atoms and having a structure selected from the group consisting of an ether bond, an ester bond, an alcohol structure, and a carbonyl structure, R 2 and R 3 each independently represent a hydrogen atom, a hydrocarbon group having 1 to 12 carbon atoms, or an organic group having 1 to 12 carbon atoms and having a structure selected from the group consisting of an ether bond, an ester bond, an alcohol structure, and a carbonyl structure, and n represents an integer of 1 to 6. Currently amended
14
Independentsurface-treated graphenecompound of general formula (1) or neutralized salt thereoforganic solventgraphene oxide
A method for producing a surface-treated graphene/organic solvent dispersion liquid, comprising mixing graphene oxide with a compound represented by the following general formula (1) in a state where the graphene oxide and the compound are dispersed in a n a ueous solution, and then subjecting the graphene oxide to reduction treatment, and further comprising an organic solvent substitution step of substituting the solvent with an organic solvent: SVG 16077627.02-14-2020.K₆S₉₂₅H₂LXEAPX4.CLM.4.svg 1.05 3.25 Black and white wherein A represents a phenolic hydroxy group-free benzene-based aromatic group having a condensation number of 1 to 4, R' represents a direct bond, a divalent hydrocarbon group having 1 to 12 carbon atoms, or a divalent organic group having 1 to 12 carbon atoms and having a structure selected from the group consisting of an ether bond, an ester bond, an alcohol structure, and a carbonyl structure, R 2 and R 3 each independently represent a hydrogen atom, a hydrocarbon group having 1 to 12 carbon atoms, or an organic group having 1 to 12 carbon atoms and having a structure selected from the group consisting of an ether bond, an ester bond, an alcohol structure, and a carbonyl structure, and n represents an integer of 1 to 6. Currently amended
1. 15
  Dependent← claim 14surface-treated grapheneorganic solvent
  The method for producing a surface-treated graphene/organic solvent dispersion liquid according to claim 14, wherein in the organic solvent substitution step, at any stage before ﬁnal solvent removal, a strong stirring step is performed, the strong stirring step being a step of stirring a surface-treated graphene/water dispersion liquid and the organic solvent in a mixed state with a high shear mixer at a shear rate of 5,000/sec to 50,000/sec. Original

Materials

Materials described outside the worked examples.

surface-treated graphene

Primary Subject Material

compound of general formula (1) or neutralized salt thereof

Surface Treatment Agent

organic solvent

Process steps

Additional fabrication and treatment steps described in the patent.

Chemical Reduction

Step 1

Process details

steps:mixing graphene oxide with compound of general formula (1) or neutralized salt thereof, reduction step: subjecting graphene oxide to reduction treatment

Materials:surface-treated graphenecompound of general formula (1) or neutralized salt thereof

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
N/C ratio by X-ray photoelectron spectroscopy	0.005–0.02 dimensionless	surface-treated graphene
compound of general formula (1) or neutralized salt attached to graphene	3–50 % by mass relative to graphene

Tables

Table 1
SVG 16077627.
p. 29
Table 2
SVG 16077627.
p. 30
Table 4
SVG 16077627.
p. 30

Why these are connected

Related documents with shared materials, methods, properties, or citations.

Surface-treated graphene, surface-treated graphene/organic solvent dispersion liquid, surface-treated graphene/electrode active material composite particles, and electrode paste | Matter42 Literature