Patent
US 10,865,502CONTINUOUS GRAPHENE FIBERS FROM FUNCTIONALIZED GRAPHENE SHEETS
Aruna Zhamu
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,865,502Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Schematic drawing illustrating the processes for producing conventional paper, mat, film, and membrane of simply aggregated graphite or graphene …
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
FIG. 4 Schematic diagram illustrating a process of producing multiple continuous graphene fibers from functionalized graphene sheets dispensed through multiple …
FIG. 5(c) An example to illustrate one mechanism with which neighboring chemically functionalized graphene sheets are chemically interconnected together.
FIG. 6 Tensile strength and Young's modulus of three graphene fibers: one derived from highly oriented chemically functionalized graphene sheets, one derived …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-based long fiber comprising chemically functionalized graphene sheets that are chemically bonded or interconnected with one another having an inter-planar spacing d 00 2 from 0.36 nm to 1.5 nm as determined by X-ray diffraction and a non-carbon element content of 0.1% to 47% by weight, wherein said functionalized graphene sheets are substantially parallel to one another and parallel to a fiber axis direction and said fiber contains no core-shell structure, have no helically arranged graphene domains, and have a length no less than 0.5 cm and a physical density from 1.5 to 2.2 g/cm 3, wherein said graphene sheets are chemically bonded between functional groups, wherein said functionalized graphene sheets are chemically bonded or interconnected with one another in a face-to-edge manner. Currently amended
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of alkyl or aryl silane, alkyl or aralkyl group, hydroxyl group, carboxyl group, carboxylic group, amine group, sulfonate group (-- S O 3 H), aldehydic group, quinoidal, fluorocarbon, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from a derivative of an azide compound selected from the group consisting of 2-azidoethanol, 3-azidopropan-1-amine, 4-(2- azidoethoxy)-4-oxobutanoic acid, 2-azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 15978712.07-23-2020.KCYY₂L₉PRXEAPX5.CLM.1.svg 2.7 3.19 Black and white and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from an oxygenated group consisting of hydroxyl, peroxide, ether, keto, aldehyde, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of -SO 3 H,-COO H,-NH 2, -OH,-R'CHOH, -CHO, -CN,-COd, halide, -COSH, -SH, -COOR', -S R', -SiR' 3, -Si(-- OR'--) y R' 3 -y,-Si(--O--SiR' 2 --)OR', -R", Li, A l R' 2, Hg--X, T l Z 2 and Mg--X; wherein y is an integer equal to or less than 3, R' is hydrogen, alkyl, aryl, cycloalkyl, or aralkyl, cycloaryl, or poly(alkylether), R" is fluoroalkyl, fluoroaryl, fluorocycloalkyl, fluoroaralkyl or cycloaryl, X is halide, and Z is carboxylate or trifluoroacetate, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of amidoamines, polyamides, aliphatic amines, modified aliphatic amines, cycloaliphatic amines, aromatic amines, anhydrides, ketimines, diethylenetriamine (DETA), triethylene-tetramine (TETA), tetraethylene-pentamine (TEPA), polyethylene polyamine, polyamine epoxy adduct, phenolic hardener, non-brominated curing agent, non-amine curatives, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from O Y, NHY, O = C--OY, P = C--NR'Y, O = C-- SY, O = C--Y, --CR'1--OY, N Y or C'Y, a derivative thereof, or a combination thereof, and Y is a functional group of a protein, a peptide, an amino acid, an enzyme, an antibody, a nucleotide, an oligonucleotide, an antigen, or an enzyme substrate, enzyme inhibitor or the transition state analog of an enzyme substrate or is selected from R'--OH, R'--NR 2, R'SH, R'CHO, R'CN, R'X, R'N + (R')3X-, R'SiR'3, R'Si(--OR'--)yR'3-y, R'Si(--O--SiR'2--)OR', R'--R", R'--N--CO, (C 2 H 4 O --) W H, (--C 3 H 6 O --), H, (--C 2 H 4 0)- -R', (C 3 H 6 O)- -R', R', and w is an integer greater than one and less than 200. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of 10,12- pentacosadiyn- 1 -ol, hydroiodic acid, 1-pyrenebutyric acid N-hydroxysuccinimide ester, 1- aminopyrene, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said inter-plane spacing d 00 2 is greater than 0.4 nm and said inter-plane spacing d 00 2 is no greater than 1.2 nm, the non- carbon element content is from 1% to 20%, or physical density from 1.7 to 2.15 g/cm 3. Previously presented
The long fiber of claim 1, having a cross-section that is circular, elliptical, rectangular, flat-shaped, or hollow. Original
The long fiber of claim 1, having a cross-section that has a length from 1 cm to 10,000 meters, a width or second largest dimension from 1 p m to 5 mm, and a thickness or smallest dimension from 10 nm to 500 p m, and a width-to-thickness ratio from 1 to 10,000. Original
The long fiber of claim 1, having a thickness from 100 nm to 100 pm. Original
The long fiber of claim 1, having a thermal conductivity from 200 to 1,600 W/mK, or an electrical conductivity from 600 to 15,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 350 W/mK, or an electrical conductivity no less than 1,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 600 W/mK, or an electrical conductivity no less than 2,500 S/cm Original
The long fiber of claim 1, having a thermal conductivity of at least 1,000 W/mK, or an electrical conductivity no less than 5,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 1,200 W/mK, or an electrical conductivity no less than 8,000 S/cm. Original
The long fiber of claim 1, wherein said long fiber contains a first graphene domain containing bonded graphene planes parallel to one another and having a first crystallographic c-axis, and a second graphene domain containing bonded graphene planes parallel to one another and having a second crystallographic c-axis wherein the first crystallographic c-axis and the second crystallographic c-axis are inclined with respect to each other at an angle less than 10 degrees. Original
The long fiber of claim 1, wherein said long fiber contains a combination of sp 2 and sp 3 electronic configurations. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 20 GPa to 300 GPa or a tensile strength from 1.0 GPa to 5.0 GPa. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 30 GPa to 150 GPa or a tensile strength from 1.2 GPa to 3.0 GPa. Original
A fiber yarn or bundle comprising at least a long fiber of claim 1 and optionally comprising multiple PAN-derived or pitch-derived carbon fibers. Original
A fiber yarn or bundle comprising multiple long fibers of claim 1. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene-based long fiber
fiber yarn or bundle
Materials described outside the worked examples.
chemically functionalized graphene sheets
PAN-derived or pitch-derived carbon fibers
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-planar spacing d002 | 0.36–1.5 nm | chemically functionalized graphene sheets |
thermal conductivity of graphene-based long fiber | 300–1600 W/mK |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,865,502Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Schematic drawing illustrating the processes for producing conventional paper, mat, film, and membrane of simply aggregated graphite or graphene …
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
FIG. 4 Schematic diagram illustrating a process of producing multiple continuous graphene fibers from functionalized graphene sheets dispensed through multiple …
FIG. 5(c) An example to illustrate one mechanism with which neighboring chemically functionalized graphene sheets are chemically interconnected together.
FIG. 6 Tensile strength and Young's modulus of three graphene fibers: one derived from highly oriented chemically functionalized graphene sheets, one derived …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-based long fiber comprising chemically functionalized graphene sheets that are chemically bonded or interconnected with one another having an inter-planar spacing d 00 2 from 0.36 nm to 1.5 nm as determined by X-ray diffraction and a non-carbon element content of 0.1% to 47% by weight, wherein said functionalized graphene sheets are substantially parallel to one another and parallel to a fiber axis direction and said fiber contains no core-shell structure, have no helically arranged graphene domains, and have a length no less than 0.5 cm and a physical density from 1.5 to 2.2 g/cm 3, wherein said graphene sheets are chemically bonded between functional groups, wherein said functionalized graphene sheets are chemically bonded or interconnected with one another in a face-to-edge manner. Currently amended
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of alkyl or aryl silane, alkyl or aralkyl group, hydroxyl group, carboxyl group, carboxylic group, amine group, sulfonate group (-- S O 3 H), aldehydic group, quinoidal, fluorocarbon, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from a derivative of an azide compound selected from the group consisting of 2-azidoethanol, 3-azidopropan-1-amine, 4-(2- azidoethoxy)-4-oxobutanoic acid, 2-azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 15978712.07-23-2020.KCYY₂L₉PRXEAPX5.CLM.1.svg 2.7 3.19 Black and white and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from an oxygenated group consisting of hydroxyl, peroxide, ether, keto, aldehyde, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of -SO 3 H,-COO H,-NH 2, -OH,-R'CHOH, -CHO, -CN,-COd, halide, -COSH, -SH, -COOR', -S R', -SiR' 3, -Si(-- OR'--) y R' 3 -y,-Si(--O--SiR' 2 --)OR', -R", Li, A l R' 2, Hg--X, T l Z 2 and Mg--X; wherein y is an integer equal to or less than 3, R' is hydrogen, alkyl, aryl, cycloalkyl, or aralkyl, cycloaryl, or poly(alkylether), R" is fluoroalkyl, fluoroaryl, fluorocycloalkyl, fluoroaralkyl or cycloaryl, X is halide, and Z is carboxylate or trifluoroacetate, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of amidoamines, polyamides, aliphatic amines, modified aliphatic amines, cycloaliphatic amines, aromatic amines, anhydrides, ketimines, diethylenetriamine (DETA), triethylene-tetramine (TETA), tetraethylene-pentamine (TEPA), polyethylene polyamine, polyamine epoxy adduct, phenolic hardener, non-brominated curing agent, non-amine curatives, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from O Y, NHY, O = C--OY, P = C--NR'Y, O = C-- SY, O = C--Y, --CR'1--OY, N Y or C'Y, a derivative thereof, or a combination thereof, and Y is a functional group of a protein, a peptide, an amino acid, an enzyme, an antibody, a nucleotide, an oligonucleotide, an antigen, or an enzyme substrate, enzyme inhibitor or the transition state analog of an enzyme substrate or is selected from R'--OH, R'--NR 2, R'SH, R'CHO, R'CN, R'X, R'N + (R')3X-, R'SiR'3, R'Si(--OR'--)yR'3-y, R'Si(--O--SiR'2--)OR', R'--R", R'--N--CO, (C 2 H 4 O --) W H, (--C 3 H 6 O --), H, (--C 2 H 4 0)- -R', (C 3 H 6 O)- -R', R', and w is an integer greater than one and less than 200. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of 10,12- pentacosadiyn- 1 -ol, hydroiodic acid, 1-pyrenebutyric acid N-hydroxysuccinimide ester, 1- aminopyrene, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said inter-plane spacing d 00 2 is greater than 0.4 nm and said inter-plane spacing d 00 2 is no greater than 1.2 nm, the non- carbon element content is from 1% to 20%, or physical density from 1.7 to 2.15 g/cm 3. Previously presented
The long fiber of claim 1, having a cross-section that is circular, elliptical, rectangular, flat-shaped, or hollow. Original
The long fiber of claim 1, having a cross-section that has a length from 1 cm to 10,000 meters, a width or second largest dimension from 1 p m to 5 mm, and a thickness or smallest dimension from 10 nm to 500 p m, and a width-to-thickness ratio from 1 to 10,000. Original
The long fiber of claim 1, having a thickness from 100 nm to 100 pm. Original
The long fiber of claim 1, having a thermal conductivity from 200 to 1,600 W/mK, or an electrical conductivity from 600 to 15,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 350 W/mK, or an electrical conductivity no less than 1,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 600 W/mK, or an electrical conductivity no less than 2,500 S/cm Original
The long fiber of claim 1, having a thermal conductivity of at least 1,000 W/mK, or an electrical conductivity no less than 5,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 1,200 W/mK, or an electrical conductivity no less than 8,000 S/cm. Original
The long fiber of claim 1, wherein said long fiber contains a first graphene domain containing bonded graphene planes parallel to one another and having a first crystallographic c-axis, and a second graphene domain containing bonded graphene planes parallel to one another and having a second crystallographic c-axis wherein the first crystallographic c-axis and the second crystallographic c-axis are inclined with respect to each other at an angle less than 10 degrees. Original
The long fiber of claim 1, wherein said long fiber contains a combination of sp 2 and sp 3 electronic configurations. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 20 GPa to 300 GPa or a tensile strength from 1.0 GPa to 5.0 GPa. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 30 GPa to 150 GPa or a tensile strength from 1.2 GPa to 3.0 GPa. Original
A fiber yarn or bundle comprising at least a long fiber of claim 1 and optionally comprising multiple PAN-derived or pitch-derived carbon fibers. Original
A fiber yarn or bundle comprising multiple long fibers of claim 1. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene-based long fiber
fiber yarn or bundle
Materials described outside the worked examples.
chemically functionalized graphene sheets
PAN-derived or pitch-derived carbon fibers
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-planar spacing d002 | 0.36–1.5 nm | chemically functionalized graphene sheets |
thermal conductivity of graphene-based long fiber | 300–1600 W/mK |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,865,502Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Schematic drawing illustrating the processes for producing conventional paper, mat, film, and membrane of simply aggregated graphite or graphene …
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
FIG. 4 Schematic diagram illustrating a process of producing multiple continuous graphene fibers from functionalized graphene sheets dispensed through multiple …
FIG. 5(c) An example to illustrate one mechanism with which neighboring chemically functionalized graphene sheets are chemically interconnected together.
FIG. 6 Tensile strength and Young's modulus of three graphene fibers: one derived from highly oriented chemically functionalized graphene sheets, one derived …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-based long fiber comprising chemically functionalized graphene sheets that are chemically bonded or interconnected with one another having an inter-planar spacing d 00 2 from 0.36 nm to 1.5 nm as determined by X-ray diffraction and a non-carbon element content of 0.1% to 47% by weight, wherein said functionalized graphene sheets are substantially parallel to one another and parallel to a fiber axis direction and said fiber contains no core-shell structure, have no helically arranged graphene domains, and have a length no less than 0.5 cm and a physical density from 1.5 to 2.2 g/cm 3, wherein said graphene sheets are chemically bonded between functional groups, wherein said functionalized graphene sheets are chemically bonded or interconnected with one another in a face-to-edge manner. Currently amended
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of alkyl or aryl silane, alkyl or aralkyl group, hydroxyl group, carboxyl group, carboxylic group, amine group, sulfonate group (-- S O 3 H), aldehydic group, quinoidal, fluorocarbon, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from a derivative of an azide compound selected from the group consisting of 2-azidoethanol, 3-azidopropan-1-amine, 4-(2- azidoethoxy)-4-oxobutanoic acid, 2-azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 15978712.07-23-2020.KCYY₂L₉PRXEAPX5.CLM.1.svg 2.7 3.19 Black and white and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from an oxygenated group consisting of hydroxyl, peroxide, ether, keto, aldehyde, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of -SO 3 H,-COO H,-NH 2, -OH,-R'CHOH, -CHO, -CN,-COd, halide, -COSH, -SH, -COOR', -S R', -SiR' 3, -Si(-- OR'--) y R' 3 -y,-Si(--O--SiR' 2 --)OR', -R", Li, A l R' 2, Hg--X, T l Z 2 and Mg--X; wherein y is an integer equal to or less than 3, R' is hydrogen, alkyl, aryl, cycloalkyl, or aralkyl, cycloaryl, or poly(alkylether), R" is fluoroalkyl, fluoroaryl, fluorocycloalkyl, fluoroaralkyl or cycloaryl, X is halide, and Z is carboxylate or trifluoroacetate, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of amidoamines, polyamides, aliphatic amines, modified aliphatic amines, cycloaliphatic amines, aromatic amines, anhydrides, ketimines, diethylenetriamine (DETA), triethylene-tetramine (TETA), tetraethylene-pentamine (TEPA), polyethylene polyamine, polyamine epoxy adduct, phenolic hardener, non-brominated curing agent, non-amine curatives, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from O Y, NHY, O = C--OY, P = C--NR'Y, O = C-- SY, O = C--Y, --CR'1--OY, N Y or C'Y, a derivative thereof, or a combination thereof, and Y is a functional group of a protein, a peptide, an amino acid, an enzyme, an antibody, a nucleotide, an oligonucleotide, an antigen, or an enzyme substrate, enzyme inhibitor or the transition state analog of an enzyme substrate or is selected from R'--OH, R'--NR 2, R'SH, R'CHO, R'CN, R'X, R'N + (R')3X-, R'SiR'3, R'Si(--OR'--)yR'3-y, R'Si(--O--SiR'2--)OR', R'--R", R'--N--CO, (C 2 H 4 O --) W H, (--C 3 H 6 O --), H, (--C 2 H 4 0)- -R', (C 3 H 6 O)- -R', R', and w is an integer greater than one and less than 200. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of 10,12- pentacosadiyn- 1 -ol, hydroiodic acid, 1-pyrenebutyric acid N-hydroxysuccinimide ester, 1- aminopyrene, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said inter-plane spacing d 00 2 is greater than 0.4 nm and said inter-plane spacing d 00 2 is no greater than 1.2 nm, the non- carbon element content is from 1% to 20%, or physical density from 1.7 to 2.15 g/cm 3. Previously presented
The long fiber of claim 1, having a cross-section that is circular, elliptical, rectangular, flat-shaped, or hollow. Original
The long fiber of claim 1, having a cross-section that has a length from 1 cm to 10,000 meters, a width or second largest dimension from 1 p m to 5 mm, and a thickness or smallest dimension from 10 nm to 500 p m, and a width-to-thickness ratio from 1 to 10,000. Original
The long fiber of claim 1, having a thickness from 100 nm to 100 pm. Original
The long fiber of claim 1, having a thermal conductivity from 200 to 1,600 W/mK, or an electrical conductivity from 600 to 15,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 350 W/mK, or an electrical conductivity no less than 1,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 600 W/mK, or an electrical conductivity no less than 2,500 S/cm Original
The long fiber of claim 1, having a thermal conductivity of at least 1,000 W/mK, or an electrical conductivity no less than 5,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 1,200 W/mK, or an electrical conductivity no less than 8,000 S/cm. Original
The long fiber of claim 1, wherein said long fiber contains a first graphene domain containing bonded graphene planes parallel to one another and having a first crystallographic c-axis, and a second graphene domain containing bonded graphene planes parallel to one another and having a second crystallographic c-axis wherein the first crystallographic c-axis and the second crystallographic c-axis are inclined with respect to each other at an angle less than 10 degrees. Original
The long fiber of claim 1, wherein said long fiber contains a combination of sp 2 and sp 3 electronic configurations. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 20 GPa to 300 GPa or a tensile strength from 1.0 GPa to 5.0 GPa. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 30 GPa to 150 GPa or a tensile strength from 1.2 GPa to 3.0 GPa. Original
A fiber yarn or bundle comprising at least a long fiber of claim 1 and optionally comprising multiple PAN-derived or pitch-derived carbon fibers. Original
A fiber yarn or bundle comprising multiple long fibers of claim 1. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene-based long fiber
fiber yarn or bundle
Materials described outside the worked examples.
chemically functionalized graphene sheets
PAN-derived or pitch-derived carbon fibers
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-planar spacing d002 | 0.36–1.5 nm | chemically functionalized graphene sheets |
thermal conductivity of graphene-based long fiber | 300–1600 W/mK |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,865,502Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Schematic drawing illustrating the processes for producing conventional paper, mat, film, and membrane of simply aggregated graphite or graphene …
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
FIG. 4 Schematic diagram illustrating a process of producing multiple continuous graphene fibers from functionalized graphene sheets dispensed through multiple …
FIG. 5(c) An example to illustrate one mechanism with which neighboring chemically functionalized graphene sheets are chemically interconnected together.
FIG. 6 Tensile strength and Young's modulus of three graphene fibers: one derived from highly oriented chemically functionalized graphene sheets, one derived …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene-based long fiber comprising chemically functionalized graphene sheets that are chemically bonded or interconnected with one another having an inter-planar spacing d 00 2 from 0.36 nm to 1.5 nm as determined by X-ray diffraction and a non-carbon element content of 0.1% to 47% by weight, wherein said functionalized graphene sheets are substantially parallel to one another and parallel to a fiber axis direction and said fiber contains no core-shell structure, have no helically arranged graphene domains, and have a length no less than 0.5 cm and a physical density from 1.5 to 2.2 g/cm 3, wherein said graphene sheets are chemically bonded between functional groups, wherein said functionalized graphene sheets are chemically bonded or interconnected with one another in a face-to-edge manner. Currently amended
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of alkyl or aryl silane, alkyl or aralkyl group, hydroxyl group, carboxyl group, carboxylic group, amine group, sulfonate group (-- S O 3 H), aldehydic group, quinoidal, fluorocarbon, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from a derivative of an azide compound selected from the group consisting of 2-azidoethanol, 3-azidopropan-1-amine, 4-(2- azidoethoxy)-4-oxobutanoic acid, 2-azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 15978712.07-23-2020.KCYY₂L₉PRXEAPX5.CLM.1.svg 2.7 3.19 Black and white and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from an oxygenated group consisting of hydroxyl, peroxide, ether, keto, aldehyde, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of -SO 3 H,-COO H,-NH 2, -OH,-R'CHOH, -CHO, -CN,-COd, halide, -COSH, -SH, -COOR', -S R', -SiR' 3, -Si(-- OR'--) y R' 3 -y,-Si(--O--SiR' 2 --)OR', -R", Li, A l R' 2, Hg--X, T l Z 2 and Mg--X; wherein y is an integer equal to or less than 3, R' is hydrogen, alkyl, aryl, cycloalkyl, or aralkyl, cycloaryl, or poly(alkylether), R" is fluoroalkyl, fluoroaryl, fluorocycloalkyl, fluoroaralkyl or cycloaryl, X is halide, and Z is carboxylate or trifluoroacetate, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of amidoamines, polyamides, aliphatic amines, modified aliphatic amines, cycloaliphatic amines, aromatic amines, anhydrides, ketimines, diethylenetriamine (DETA), triethylene-tetramine (TETA), tetraethylene-pentamine (TEPA), polyethylene polyamine, polyamine epoxy adduct, phenolic hardener, non-brominated curing agent, non-amine curatives, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from O Y, NHY, O = C--OY, P = C--NR'Y, O = C-- SY, O = C--Y, --CR'1--OY, N Y or C'Y, a derivative thereof, or a combination thereof, and Y is a functional group of a protein, a peptide, an amino acid, an enzyme, an antibody, a nucleotide, an oligonucleotide, an antigen, or an enzyme substrate, enzyme inhibitor or the transition state analog of an enzyme substrate or is selected from R'--OH, R'--NR 2, R'SH, R'CHO, R'CN, R'X, R'N + (R')3X-, R'SiR'3, R'Si(--OR'--)yR'3-y, R'Si(--O--SiR'2--)OR', R'--R", R'--N--CO, (C 2 H 4 O --) W H, (--C 3 H 6 O --), H, (--C 2 H 4 0)- -R', (C 3 H 6 O)- -R', R', and w is an integer greater than one and less than 200. Original
The long fiber of claim 1, wherein said chemically functionalized graphene sheets contain a chemical functional group selected from the group consisting of 10,12- pentacosadiyn- 1 -ol, hydroiodic acid, 1-pyrenebutyric acid N-hydroxysuccinimide ester, 1- aminopyrene, derivatives thereof, and combinations thereof. Original
The long fiber of claim 1, wherein said inter-plane spacing d 00 2 is greater than 0.4 nm and said inter-plane spacing d 00 2 is no greater than 1.2 nm, the non- carbon element content is from 1% to 20%, or physical density from 1.7 to 2.15 g/cm 3. Previously presented
The long fiber of claim 1, having a cross-section that is circular, elliptical, rectangular, flat-shaped, or hollow. Original
The long fiber of claim 1, having a cross-section that has a length from 1 cm to 10,000 meters, a width or second largest dimension from 1 p m to 5 mm, and a thickness or smallest dimension from 10 nm to 500 p m, and a width-to-thickness ratio from 1 to 10,000. Original
The long fiber of claim 1, having a thickness from 100 nm to 100 pm. Original
The long fiber of claim 1, having a thermal conductivity from 200 to 1,600 W/mK, or an electrical conductivity from 600 to 15,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 350 W/mK, or an electrical conductivity no less than 1,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 600 W/mK, or an electrical conductivity no less than 2,500 S/cm Original
The long fiber of claim 1, having a thermal conductivity of at least 1,000 W/mK, or an electrical conductivity no less than 5,000 S/cm. Original
The long fiber of claim 1, having a thermal conductivity of at least 1,200 W/mK, or an electrical conductivity no less than 8,000 S/cm. Original
The long fiber of claim 1, wherein said long fiber contains a first graphene domain containing bonded graphene planes parallel to one another and having a first crystallographic c-axis, and a second graphene domain containing bonded graphene planes parallel to one another and having a second crystallographic c-axis wherein the first crystallographic c-axis and the second crystallographic c-axis are inclined with respect to each other at an angle less than 10 degrees. Original
The long fiber of claim 1, wherein said long fiber contains a combination of sp 2 and sp 3 electronic configurations. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 20 GPa to 300 GPa or a tensile strength from 1.0 GPa to 5.0 GPa. Original
The long fiber of claim 1, wherein said long fiber has a Young's modulus from 30 GPa to 150 GPa or a tensile strength from 1.2 GPa to 3.0 GPa. Original
A fiber yarn or bundle comprising at least a long fiber of claim 1 and optionally comprising multiple PAN-derived or pitch-derived carbon fibers. Original
A fiber yarn or bundle comprising multiple long fibers of claim 1. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene-based long fiber
fiber yarn or bundle
Materials described outside the worked examples.
chemically functionalized graphene sheets
PAN-derived or pitch-derived carbon fibers
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 (c) SEM images of an elongated section of prior art graphene fibers produced by solution spinning and liquid coagulation, showing many graphene sheets …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
inter-planar spacing d002 | 0.36–1.5 nm | chemically functionalized graphene sheets |
thermal conductivity of graphene-based long fiber | 300–1600 W/mK |
Related documents with shared materials, methods, properties, or citations.
graphene oxide
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
chemically functionalized graphene sheets |
electrical conductivity of graphene-based long fiber | 600–15000 S/cm | chemically functionalized graphene sheets |
tensile strength of graphene-based long fiber | 1–5 GPa | chemically functionalized graphene sheets |
Young's modulus of graphene-based long fiber | 20–300 GPa | chemically functionalized graphene sheets |
physical density of graphene-based long fiber | 1.5–2.2 g/cm3 | chemically functionalized graphene sheets |
Duration | 900–7200 s | — |
— | 200–1600 W | — |
Duration | 48–72 hours | — |
— | 350–1500 W | — |
Duration | 4–120 hours | — |
Temperature | 20–25 °C | — |
— | 140–300 W | — |
— | 10–30 W | — |
Temperature | 150–250 °C | — |
Thickness | 2800–3000 cm | — |
Temperature | 200–700 °C | — |
Duration | 48–96 hours | — |
Duration | 10–100 minutes | — |
Thickness | ≤ 0.5 cm | — |
Thickness | ≥ 1 nm | — |
— | ≥ 350 W | — |
— | ≥ 600 W | — |
— | ≥ 1 W | — |
— | ≥ 1200 W | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≥ 1.2 nm | — |
Thickness | 0.4–1.2 nm | — |
graphene oxide
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
chemically functionalized graphene sheets |
electrical conductivity of graphene-based long fiber | 600–15000 S/cm | chemically functionalized graphene sheets |
tensile strength of graphene-based long fiber | 1–5 GPa | chemically functionalized graphene sheets |
Young's modulus of graphene-based long fiber | 20–300 GPa | chemically functionalized graphene sheets |
physical density of graphene-based long fiber | 1.5–2.2 g/cm3 | chemically functionalized graphene sheets |
Duration | 900–7200 s | — |
— | 200–1600 W | — |
Duration | 48–72 hours | — |
— | 350–1500 W | — |
Duration | 4–120 hours | — |
Temperature | 20–25 °C | — |
— | 140–300 W | — |
— | 10–30 W | — |
Temperature | 150–250 °C | — |
Thickness | 2800–3000 cm | — |
Temperature | 200–700 °C | — |
Duration | 48–96 hours | — |
Duration | 10–100 minutes | — |
Thickness | ≤ 0.5 cm | — |
Thickness | ≥ 1 nm | — |
— | ≥ 350 W | — |
— | ≥ 600 W | — |
— | ≥ 1 W | — |
— | ≥ 1200 W | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≥ 1.2 nm | — |
Thickness | 0.4–1.2 nm | — |
graphene oxide
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
chemically functionalized graphene sheets |
electrical conductivity of graphene-based long fiber | 600–15000 S/cm | chemically functionalized graphene sheets |
tensile strength of graphene-based long fiber | 1–5 GPa | chemically functionalized graphene sheets |
Young's modulus of graphene-based long fiber | 20–300 GPa | chemically functionalized graphene sheets |
physical density of graphene-based long fiber | 1.5–2.2 g/cm3 | chemically functionalized graphene sheets |
Duration | 900–7200 s | — |
— | 200–1600 W | — |
Duration | 48–72 hours | — |
— | 350–1500 W | — |
Duration | 4–120 hours | — |
Temperature | 20–25 °C | — |
— | 140–300 W | — |
— | 10–30 W | — |
Temperature | 150–250 °C | — |
Thickness | 2800–3000 cm | — |
Temperature | 200–700 °C | — |
Duration | 48–96 hours | — |
Duration | 10–100 minutes | — |
Thickness | ≤ 0.5 cm | — |
Thickness | ≥ 1 nm | — |
— | ≥ 350 W | — |
— | ≥ 600 W | — |
— | ≥ 1 W | — |
— | ≥ 1200 W | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≥ 1.2 nm | — |
Thickness | 0.4–1.2 nm | — |
graphene oxide
FIG. 3(b) A SEM image of a cross-section of a conventional graphene paper/film prepared from discrete graphene sheets/platelets using a paper-making process …
chemically functionalized graphene sheets |
electrical conductivity of graphene-based long fiber | 600–15000 S/cm | chemically functionalized graphene sheets |
tensile strength of graphene-based long fiber | 1–5 GPa | chemically functionalized graphene sheets |
Young's modulus of graphene-based long fiber | 20–300 GPa | chemically functionalized graphene sheets |
physical density of graphene-based long fiber | 1.5–2.2 g/cm3 | chemically functionalized graphene sheets |
Duration | 900–7200 s | — |
— | 200–1600 W | — |
Duration | 48–72 hours | — |
— | 350–1500 W | — |
Duration | 4–120 hours | — |
Temperature | 20–25 °C | — |
— | 140–300 W | — |
— | 10–30 W | — |
Temperature | 150–250 °C | — |
Thickness | 2800–3000 cm | — |
Temperature | 200–700 °C | — |
Duration | 48–96 hours | — |
Duration | 10–100 minutes | — |
Thickness | ≤ 0.5 cm | — |
Thickness | ≥ 1 nm | — |
— | ≥ 350 W | — |
— | ≥ 600 W | — |
— | ≥ 1 W | — |
— | ≥ 1200 W | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≥ 1.2 nm | — |
Thickness | 0.4–1.2 nm | — |