Patent
US 10,614,966ALIGNED GRAPHENE-CARBON NANOTUBE POROUS CARBON COMPOSITE
Palash GANGOPADHYAY
THE ARIZONA BOARD OF REGENTS on behalf of THE UNIVERSITY OF ARIZONA·18 February 2016·US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,614,966Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite material, comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; and a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Previously presented
The composite of Claim 1, further comprising at least two graphene sheets, wherein the plurality of carbon nanotubes extends between the at least two graphene sheets. Original
The composite of Claim 1, wherein the plurality of graphene sheets comprises at least one of single layer graphene, multi-layer graphene, and reduced graphene oxide (RGO). Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are single-walled carbon nanotubes. Previously presented
The composite of Claim 1, wherein a mean outer diameter of the plurality of carbon nanotubes is within the range between about 0.8 nm to about 2 nm. Previously presented
The composite of Claim 1, wherein a mean length of the plurality of carbon nanotubes is within the range between about 2 nm to about 20 nm. Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are functionalized with one or more functional groups selected from the group consisting of carboxylic acid (-COOH), sulphonic acid (-S O 3 H), amine (-NH 2), and hydroxyl (-OH) containing groups. Previously presented
The composite of Claim 1, further comprising a binder, wherein the porous carbon is an activated carbon and wherein the binder connects at least a portion of the plurality of graphene sheets to at least a portion of the plurality of carbon nanotubes via the porous carbon matrix. Previously presented
The composite of Claim 1, wherein the porous carbon is formed from one of carbonized polyacrylonitrile (PAN) and polystyrene. Previously presented
The composite of Claim 1, wherein the plurality of graphene sheets and the plurality of carbon nanotubes are mechanically connected to one another. Previously presented
- 6. Canceled
Canceled
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- 24. Canceled
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Canceled
(Withdrawn-currently amended) A composite electrode comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independently alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extendin g from an outer surface of the composite electrode to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite electrode. Currently amended
(Withdrawn-currently amended) An electrochemical system, comprising: a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a composite material comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite materia l; an electrolyte provided between the two electrodes; and a separator mechanically separating the two electrodes. Currently amended
The electrochemical system of Claim 28, wherein the at least one composite electrode is mounted upon a supporting substrate. Withdrawn
The electrochemical system of Claim 28, wherein the electrolyte is a room-temperature ionic liquid. Withdrawn
The electrochemical system of Claim 28, wherein the electrode further comprises a lithium compound embedded within the composite. Withdrawn
- 34. Canceled
Canceled
- 38. Canceled
Canceled
Canceled
- 46. Canceled
Canceled
A method for fabricating a composite material, comprising: providing a carbon slurry, the slurry comprising: a first solvent; a porous carbon; a plurality of conductive graphene sheets; and a plurality of carbon nanotubes; depositing a film of the carbon slurry upon a substrate; positioning the carbon slurry film within a magnetic field and sonic wave, wherein the magnetic field lines are oriented at a defined angle with respect to the plane of the substrate and wherein the magnetic field strength is sufficient to induce at least a portion of the carbon nanotubes to orient such that their respective tube axes are substantially parallel to the magnetic field lines; and removing at least a portion of the solvents from the deposited film to form a solidified film of the composite, whereinafter removing the solvents: the plurality of graphene sheets and the plurality of carbon nanotubes form a three-dimensional scaffold at least partially embedded within a matrix formed by the porous carbon, the plurality of graphene sheets and the plurality of carbon nanotubes are connected to each other via the porous carbon matrix; the plurality of graphene sheets are oriented in an independent alignment plane substantially perpendicular to a composite axis; and the plurality of carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis, wherein the matrix comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Withdrawn
The method of Claim 47, wherein the carbon slurry further comprises a binder and providing the carbon slurry further comprises: mixing the porous carbon and the binder with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the porous carbon is formed from a polymer precursor resin and providing the carbon slurry further comprises: mixing the polymer precursor with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the first solvent is selected from the group consisting of: dimethylformamide (DMF) or N-methyl pyrrolidone (NMP) and the second solvent is selected from the group consisting of: N-butyl acetate, acetone, or diethylketone. Withdrawn
The method of Claim 47, wherein the tube axes of approximately all of the carbon nanotubes are oriented at approximately 90 degrees to the plurality of graphene sheets. Withdrawn
Canceled
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- 60. Canceled
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- 70. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene-CNT porous carbon composite material
composite electrode
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
— | 2–4 W | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,614,966Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite material, comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; and a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Previously presented
The composite of Claim 1, further comprising at least two graphene sheets, wherein the plurality of carbon nanotubes extends between the at least two graphene sheets. Original
The composite of Claim 1, wherein the plurality of graphene sheets comprises at least one of single layer graphene, multi-layer graphene, and reduced graphene oxide (RGO). Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are single-walled carbon nanotubes. Previously presented
The composite of Claim 1, wherein a mean outer diameter of the plurality of carbon nanotubes is within the range between about 0.8 nm to about 2 nm. Previously presented
The composite of Claim 1, wherein a mean length of the plurality of carbon nanotubes is within the range between about 2 nm to about 20 nm. Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are functionalized with one or more functional groups selected from the group consisting of carboxylic acid (-COOH), sulphonic acid (-S O 3 H), amine (-NH 2), and hydroxyl (-OH) containing groups. Previously presented
The composite of Claim 1, further comprising a binder, wherein the porous carbon is an activated carbon and wherein the binder connects at least a portion of the plurality of graphene sheets to at least a portion of the plurality of carbon nanotubes via the porous carbon matrix. Previously presented
The composite of Claim 1, wherein the porous carbon is formed from one of carbonized polyacrylonitrile (PAN) and polystyrene. Previously presented
The composite of Claim 1, wherein the plurality of graphene sheets and the plurality of carbon nanotubes are mechanically connected to one another. Previously presented
- 6. Canceled
Canceled
- 12. Canceled
Canceled
Canceled
- 24. Canceled
Canceled
Canceled
(Withdrawn-currently amended) A composite electrode comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independently alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extendin g from an outer surface of the composite electrode to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite electrode. Currently amended
(Withdrawn-currently amended) An electrochemical system, comprising: a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a composite material comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite materia l; an electrolyte provided between the two electrodes; and a separator mechanically separating the two electrodes. Currently amended
The electrochemical system of Claim 28, wherein the at least one composite electrode is mounted upon a supporting substrate. Withdrawn
The electrochemical system of Claim 28, wherein the electrolyte is a room-temperature ionic liquid. Withdrawn
The electrochemical system of Claim 28, wherein the electrode further comprises a lithium compound embedded within the composite. Withdrawn
- 34. Canceled
Canceled
- 38. Canceled
Canceled
Canceled
- 46. Canceled
Canceled
A method for fabricating a composite material, comprising: providing a carbon slurry, the slurry comprising: a first solvent; a porous carbon; a plurality of conductive graphene sheets; and a plurality of carbon nanotubes; depositing a film of the carbon slurry upon a substrate; positioning the carbon slurry film within a magnetic field and sonic wave, wherein the magnetic field lines are oriented at a defined angle with respect to the plane of the substrate and wherein the magnetic field strength is sufficient to induce at least a portion of the carbon nanotubes to orient such that their respective tube axes are substantially parallel to the magnetic field lines; and removing at least a portion of the solvents from the deposited film to form a solidified film of the composite, whereinafter removing the solvents: the plurality of graphene sheets and the plurality of carbon nanotubes form a three-dimensional scaffold at least partially embedded within a matrix formed by the porous carbon, the plurality of graphene sheets and the plurality of carbon nanotubes are connected to each other via the porous carbon matrix; the plurality of graphene sheets are oriented in an independent alignment plane substantially perpendicular to a composite axis; and the plurality of carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis, wherein the matrix comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Withdrawn
The method of Claim 47, wherein the carbon slurry further comprises a binder and providing the carbon slurry further comprises: mixing the porous carbon and the binder with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the porous carbon is formed from a polymer precursor resin and providing the carbon slurry further comprises: mixing the polymer precursor with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the first solvent is selected from the group consisting of: dimethylformamide (DMF) or N-methyl pyrrolidone (NMP) and the second solvent is selected from the group consisting of: N-butyl acetate, acetone, or diethylketone. Withdrawn
The method of Claim 47, wherein the tube axes of approximately all of the carbon nanotubes are oriented at approximately 90 degrees to the plurality of graphene sheets. Withdrawn
Canceled
- 53. Canceled
Canceled
- 60. Canceled
Canceled
- 70. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene-CNT porous carbon composite material
composite electrode
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
— | 2–4 W | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,614,966Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite material, comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; and a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Previously presented
The composite of Claim 1, further comprising at least two graphene sheets, wherein the plurality of carbon nanotubes extends between the at least two graphene sheets. Original
The composite of Claim 1, wherein the plurality of graphene sheets comprises at least one of single layer graphene, multi-layer graphene, and reduced graphene oxide (RGO). Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are single-walled carbon nanotubes. Previously presented
The composite of Claim 1, wherein a mean outer diameter of the plurality of carbon nanotubes is within the range between about 0.8 nm to about 2 nm. Previously presented
The composite of Claim 1, wherein a mean length of the plurality of carbon nanotubes is within the range between about 2 nm to about 20 nm. Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are functionalized with one or more functional groups selected from the group consisting of carboxylic acid (-COOH), sulphonic acid (-S O 3 H), amine (-NH 2), and hydroxyl (-OH) containing groups. Previously presented
The composite of Claim 1, further comprising a binder, wherein the porous carbon is an activated carbon and wherein the binder connects at least a portion of the plurality of graphene sheets to at least a portion of the plurality of carbon nanotubes via the porous carbon matrix. Previously presented
The composite of Claim 1, wherein the porous carbon is formed from one of carbonized polyacrylonitrile (PAN) and polystyrene. Previously presented
The composite of Claim 1, wherein the plurality of graphene sheets and the plurality of carbon nanotubes are mechanically connected to one another. Previously presented
- 6. Canceled
Canceled
- 12. Canceled
Canceled
Canceled
- 24. Canceled
Canceled
Canceled
(Withdrawn-currently amended) A composite electrode comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independently alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extendin g from an outer surface of the composite electrode to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite electrode. Currently amended
(Withdrawn-currently amended) An electrochemical system, comprising: a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a composite material comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite materia l; an electrolyte provided between the two electrodes; and a separator mechanically separating the two electrodes. Currently amended
The electrochemical system of Claim 28, wherein the at least one composite electrode is mounted upon a supporting substrate. Withdrawn
The electrochemical system of Claim 28, wherein the electrolyte is a room-temperature ionic liquid. Withdrawn
The electrochemical system of Claim 28, wherein the electrode further comprises a lithium compound embedded within the composite. Withdrawn
- 34. Canceled
Canceled
- 38. Canceled
Canceled
Canceled
- 46. Canceled
Canceled
A method for fabricating a composite material, comprising: providing a carbon slurry, the slurry comprising: a first solvent; a porous carbon; a plurality of conductive graphene sheets; and a plurality of carbon nanotubes; depositing a film of the carbon slurry upon a substrate; positioning the carbon slurry film within a magnetic field and sonic wave, wherein the magnetic field lines are oriented at a defined angle with respect to the plane of the substrate and wherein the magnetic field strength is sufficient to induce at least a portion of the carbon nanotubes to orient such that their respective tube axes are substantially parallel to the magnetic field lines; and removing at least a portion of the solvents from the deposited film to form a solidified film of the composite, whereinafter removing the solvents: the plurality of graphene sheets and the plurality of carbon nanotubes form a three-dimensional scaffold at least partially embedded within a matrix formed by the porous carbon, the plurality of graphene sheets and the plurality of carbon nanotubes are connected to each other via the porous carbon matrix; the plurality of graphene sheets are oriented in an independent alignment plane substantially perpendicular to a composite axis; and the plurality of carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis, wherein the matrix comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Withdrawn
The method of Claim 47, wherein the carbon slurry further comprises a binder and providing the carbon slurry further comprises: mixing the porous carbon and the binder with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the porous carbon is formed from a polymer precursor resin and providing the carbon slurry further comprises: mixing the polymer precursor with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the first solvent is selected from the group consisting of: dimethylformamide (DMF) or N-methyl pyrrolidone (NMP) and the second solvent is selected from the group consisting of: N-butyl acetate, acetone, or diethylketone. Withdrawn
The method of Claim 47, wherein the tube axes of approximately all of the carbon nanotubes are oriented at approximately 90 degrees to the plurality of graphene sheets. Withdrawn
Canceled
- 53. Canceled
Canceled
- 60. Canceled
Canceled
- 70. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene-CNT porous carbon composite material
composite electrode
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
— | 2–4 W | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,614,966Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composite material, comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; and a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Previously presented
The composite of Claim 1, further comprising at least two graphene sheets, wherein the plurality of carbon nanotubes extends between the at least two graphene sheets. Original
The composite of Claim 1, wherein the plurality of graphene sheets comprises at least one of single layer graphene, multi-layer graphene, and reduced graphene oxide (RGO). Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are single-walled carbon nanotubes. Previously presented
The composite of Claim 1, wherein a mean outer diameter of the plurality of carbon nanotubes is within the range between about 0.8 nm to about 2 nm. Previously presented
The composite of Claim 1, wherein a mean length of the plurality of carbon nanotubes is within the range between about 2 nm to about 20 nm. Previously presented
The composite of Claim 1, wherein the plurality of carbon nanotubes are functionalized with one or more functional groups selected from the group consisting of carboxylic acid (-COOH), sulphonic acid (-S O 3 H), amine (-NH 2), and hydroxyl (-OH) containing groups. Previously presented
The composite of Claim 1, further comprising a binder, wherein the porous carbon is an activated carbon and wherein the binder connects at least a portion of the plurality of graphene sheets to at least a portion of the plurality of carbon nanotubes via the porous carbon matrix. Previously presented
The composite of Claim 1, wherein the porous carbon is formed from one of carbonized polyacrylonitrile (PAN) and polystyrene. Previously presented
The composite of Claim 1, wherein the plurality of graphene sheets and the plurality of carbon nanotubes are mechanically connected to one another. Previously presented
- 6. Canceled
Canceled
- 12. Canceled
Canceled
Canceled
- 24. Canceled
Canceled
Canceled
(Withdrawn-currently amended) A composite electrode comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independently alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extendin g from an outer surface of the composite electrode to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite electrode. Currently amended
(Withdrawn-currently amended) An electrochemical system, comprising: a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a composite material comprising: a scaffold, comprising: a plurality of graphene sheets each oriented in an independent alignment plane substantially perpendicular to a composite axis; and a plurality of carbon nanotubes, wherein at least a portion of the carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis; a matrix comprising a porous carbon, wherein the scaffold is at least partially embedded in the matrix, wherein the matrix further comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite materia l; an electrolyte provided between the two electrodes; and a separator mechanically separating the two electrodes. Currently amended
The electrochemical system of Claim 28, wherein the at least one composite electrode is mounted upon a supporting substrate. Withdrawn
The electrochemical system of Claim 28, wherein the electrolyte is a room-temperature ionic liquid. Withdrawn
The electrochemical system of Claim 28, wherein the electrode further comprises a lithium compound embedded within the composite. Withdrawn
- 34. Canceled
Canceled
- 38. Canceled
Canceled
Canceled
- 46. Canceled
Canceled
A method for fabricating a composite material, comprising: providing a carbon slurry, the slurry comprising: a first solvent; a porous carbon; a plurality of conductive graphene sheets; and a plurality of carbon nanotubes; depositing a film of the carbon slurry upon a substrate; positioning the carbon slurry film within a magnetic field and sonic wave, wherein the magnetic field lines are oriented at a defined angle with respect to the plane of the substrate and wherein the magnetic field strength is sufficient to induce at least a portion of the carbon nanotubes to orient such that their respective tube axes are substantially parallel to the magnetic field lines; and removing at least a portion of the solvents from the deposited film to form a solidified film of the composite, whereinafter removing the solvents: the plurality of graphene sheets and the plurality of carbon nanotubes form a three-dimensional scaffold at least partially embedded within a matrix formed by the porous carbon, the plurality of graphene sheets and the plurality of carbon nanotubes are connected to each other via the porous carbon matrix; the plurality of graphene sheets are oriented in an independent alignment plane substantially perpendicular to a composite axis; and the plurality of carbon nanotubes are oriented such that their respective tube axes are oriented substantially at a defined angle with respect to the composite axis, wherein the matrix comprises an interconnected pore network, extending from an outer surface of the composite material to the embedded scaffold, and wherein a mean diameter of pores of the pore network decreases with distance from the outer surface of the composite. Withdrawn
The method of Claim 47, wherein the carbon slurry further comprises a binder and providing the carbon slurry further comprises: mixing the porous carbon and the binder with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the porous carbon is formed from a polymer precursor resin and providing the carbon slurry further comprises: mixing the polymer precursor with the first solvent to form a first slurry precursor; sonicating the first slurry precursor; mixing the sonicated first slurry precursor with a dispersion of the plurality of graphene sheets in a second solvent to form a second slurry precursor, wherein the first and second solvents are miscible; sonicating the second slurry precursor; mixing the sonicated second slurry precursor with a dispersion of the plurality of carbon nanotubes in the first solvent to form the carbon slurry; and sonicating the carbon slurry. Withdrawn
The method of Claim 47, wherein the first solvent is selected from the group consisting of: dimethylformamide (DMF) or N-methyl pyrrolidone (NMP) and the second solvent is selected from the group consisting of: N-butyl acetate, acetone, or diethylketone. Withdrawn
The method of Claim 47, wherein the tube axes of approximately all of the carbon nanotubes are oriented at approximately 90 degrees to the plurality of graphene sheets. Withdrawn
Canceled
- 53. Canceled
Canceled
- 60. Canceled
Canceled
- 70. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
graphene-CNT porous carbon composite material
composite electrode
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
— | 2–4 W | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
electrochemical system (supercapacitor)
porous carbon
multi-layer graphene
reduced graphene oxide
single-walled carbon nanotubes
functionalized carbon nanotubes
binder
activated carbon
binder selected from PVDF, PAN, PTFE, CMC, polystyrene, SBR, poly(ethylene oxide), functionalized graphene oxide, silver paste
porous carbon from carbonized polyacrylonitrile (PAN) or polystyrene
room-temperature ionic liquid electrolyte
electrolyte selected from KOH, H₂SO4, 4MBPBF4, EMIM-OTf, EMIMBF4, Na₂SO4, EMIM-TFSI, PYR₁₄-TFSI, EMIM-TFSA
lithium compound
solvents: DMF or NMP (first); N-butyl acetate, acetone, or diethylketone (second)
| — |
Thickness | 20–40 mm | — |
Thickness | 0.8–2 nm | — |
Thickness | 2–20 nm | — |
— | 500–750 W | — |
Thickness | 0.8–2000 nm | — |
Temperature | 100–250 °C | — |
Temperature | 1200–1400 °C | — |
Thickness | 1.1–5 cm | — |
Temperature | 800–1000 °C | — |
Temperature | 600–1000 °C | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≥ 50 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | 2–10 nm | — |
Duration | 1200–21600 s | — |
electrochemical system (supercapacitor)
porous carbon
multi-layer graphene
reduced graphene oxide
single-walled carbon nanotubes
functionalized carbon nanotubes
binder
activated carbon
binder selected from PVDF, PAN, PTFE, CMC, polystyrene, SBR, poly(ethylene oxide), functionalized graphene oxide, silver paste
porous carbon from carbonized polyacrylonitrile (PAN) or polystyrene
room-temperature ionic liquid electrolyte
electrolyte selected from KOH, H₂SO4, 4MBPBF4, EMIM-OTf, EMIMBF4, Na₂SO4, EMIM-TFSI, PYR₁₄-TFSI, EMIM-TFSA
lithium compound
solvents: DMF or NMP (first); N-butyl acetate, acetone, or diethylketone (second)
| — |
Thickness | 20–40 mm | — |
Thickness | 0.8–2 nm | — |
Thickness | 2–20 nm | — |
— | 500–750 W | — |
Thickness | 0.8–2000 nm | — |
Temperature | 100–250 °C | — |
Temperature | 1200–1400 °C | — |
Thickness | 1.1–5 cm | — |
Temperature | 800–1000 °C | — |
Temperature | 600–1000 °C | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≥ 50 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | 2–10 nm | — |
Duration | 1200–21600 s | — |
electrochemical system (supercapacitor)
porous carbon
multi-layer graphene
reduced graphene oxide
single-walled carbon nanotubes
functionalized carbon nanotubes
binder
activated carbon
binder selected from PVDF, PAN, PTFE, CMC, polystyrene, SBR, poly(ethylene oxide), functionalized graphene oxide, silver paste
porous carbon from carbonized polyacrylonitrile (PAN) or polystyrene
room-temperature ionic liquid electrolyte
electrolyte selected from KOH, H₂SO4, 4MBPBF4, EMIM-OTf, EMIMBF4, Na₂SO4, EMIM-TFSI, PYR₁₄-TFSI, EMIM-TFSA
lithium compound
solvents: DMF or NMP (first); N-butyl acetate, acetone, or diethylketone (second)
| — |
Thickness | 20–40 mm | — |
Thickness | 0.8–2 nm | — |
Thickness | 2–20 nm | — |
— | 500–750 W | — |
Thickness | 0.8–2000 nm | — |
Temperature | 100–250 °C | — |
Temperature | 1200–1400 °C | — |
Thickness | 1.1–5 cm | — |
Temperature | 800–1000 °C | — |
Temperature | 600–1000 °C | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≥ 50 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | 2–10 nm | — |
Duration | 1200–21600 s | — |
electrochemical system (supercapacitor)
porous carbon
multi-layer graphene
reduced graphene oxide
single-walled carbon nanotubes
functionalized carbon nanotubes
binder
activated carbon
binder selected from PVDF, PAN, PTFE, CMC, polystyrene, SBR, poly(ethylene oxide), functionalized graphene oxide, silver paste
porous carbon from carbonized polyacrylonitrile (PAN) or polystyrene
room-temperature ionic liquid electrolyte
electrolyte selected from KOH, H₂SO4, 4MBPBF4, EMIM-OTf, EMIMBF4, Na₂SO4, EMIM-TFSI, PYR₁₄-TFSI, EMIM-TFSA
lithium compound
solvents: DMF or NMP (first); N-butyl acetate, acetone, or diethylketone (second)
| — |
Thickness | 20–40 mm | — |
Thickness | 0.8–2 nm | — |
Thickness | 2–20 nm | — |
— | 500–750 W | — |
Thickness | 0.8–2000 nm | — |
Temperature | 100–250 °C | — |
Temperature | 1200–1400 °C | — |
Thickness | 1.1–5 cm | — |
Temperature | 800–1000 °C | — |
Temperature | 600–1000 °C | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 2 nm | — |
Thickness | ≥ 50 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | 2–10 nm | — |
Duration | 1200–21600 s | — |