Patent
US 10,861,617Graphene Oxide-Coated Graphitic Foil and Processes for Producing Same
Aruna Zhamu, Wei Xiong, Bor Z. Jang
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,861,617Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite foils and flexible graphite composites) …
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 4(b) Thermal conductivity values of the GO layer alone (-), GO-coated flexible graphite (FG) foil (+), and polyimide-derived pyrolytic graphite (PG) …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
FIG. 6 Surface temperature fields of two identical smart phones running the same video programs for 10 minutes. One smart phone (top image) contains 2 sheets of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A process for producing a graphene oxide-coated graphitic foil, said process comprising: (a) preparing a core or substrate layer of a graphitic material; (b) preparing a graphene oxide gel having graphene oxide molecules dispersed in a fluid medium, wherein the graphene oxide gel is optically transparent or translucent; (c) depositing graphene oxide gel onto a surface of the core or substrate layer to form a coating thereon; (d) partially or completely removing said fluid medium from the coating to form a coated laminate; and (e) heat-treating the coated substrate or the coated laminate to form said graphene oxide-coated graphitic foil, wherein the graphene oxide coating layer has a thickness from 1 nm to 10 mm, an oxygen content of 0.01% to 40% by weight based on the total graphene oxide weight, and comprises a unitary graphene layer or a single crystal of oriented graphene planes that are parallel to one another, and wherein the graphene-coated graphitic foil has a thickness from 10 p m to 10 mm, a thermal conductivity of 600 W/mK or greater, a physical density of 1.4 g/cm 3 or greater, and a tensile strength of 10 MPa or greater. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is prepared by immersing a graphitic material in an oxidizing agent and wherein said graphitic material is selected from natural graphite, artificial graphite, mesophase carbon, mesophase pitch, mesocarbon microbead, soft carbon, hard carbon, coke, carbon fiber, carbon nanofiber, carbon nanotube, or a combination thereof. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel has an oxygen content from 0.01% to 46% by weight. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel comprises graphene oxide molecules having a molecular weight between 200 g/mole and 43,000 g/mole. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer comprises flexible graphite foil, graphene film, graphene paper, graphite particle paper, carbon-carbon composite film, carbon nanotube paper, carbon nanofiber mat, graphite-epoxy composite films, carbon-carbon composite, or carbon paper. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is graphene film comprising pristine graphene, g raphene oxide, reduced graphene oxide, g raphene fluoride, hydrogenated graphene, doped graphene. functionalized graphene, multi-layer graphene sheets having a thickness of 3.35 nm to 33.5 nm, pristine graphene containing no oxygen, and combinations thereof. Original
The process for producin g the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is flexible graphite foil produced by re- compression of exfoliated graphite worms or exfoliated graphite flakes of natural graphite and/or artificial graphite. Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1. wherein the graphitic core has a thickness from 1 nm to 200 pm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step of heat-treating the coated substrate or the coated laminate is carried out at a temperature from 1 00° C to 3000 °C. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, including chemical linking or merging of graphene oxide molecules to fo rm; a unitary graphene layer. Currently amended
The process for producing the g raphene oxide-coated graphitic foil of claim 1. further comprising a step of compressing said graphene oxide-coated graphitic foil before, during, or after heat treatment. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, further comprising a step of depositing a layer of electrically insulating material onto the graphene oxide-coated graphitic foil. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step (a) of preparing a core or substrate layer of a graphitic material includes feeding a sheet of a graphitic material from a roller to a coating zone, and the process comprises a step of depositing graphene oxide gel onto a surface of said sheet of a graphitic material to form a graphene oxide gel-coated sheet and further comprises collecting said coated sheet on a collector roller. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a thermal conductivity from 600 W/mK to 1,900 W/mK. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a physical density from 1.4 g/cm 3 to 2.24 g/cm 3 Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has an electrical conductivity from 5.000 S/cm to 20.000 S/cm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has a tensile strength greater from 40 MPa to 120 MPa. Original
The process for producing the graphene graphene oxide-coated graphitic foil has a Rockwell oxide-coated graphitic foil of claim 1, wherein the hardness from 60 to 88. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide-coated graphitic foil
Materials described outside the worked examples.
graphene oxide coating layer (unitary graphene layer/graphene single crystal)
graphene oxide gel
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene oxide-coated graphitic foil (claim range) | 600–1900 W/mK | — |
physical density of graphene oxide-coated graphitic foil (claim range) | 1.4–2.24 g/cm3 | — |
tensile strength of graphene oxide-coated graphitic foil (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,861,617Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite foils and flexible graphite composites) …
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 4(b) Thermal conductivity values of the GO layer alone (-), GO-coated flexible graphite (FG) foil (+), and polyimide-derived pyrolytic graphite (PG) …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
FIG. 6 Surface temperature fields of two identical smart phones running the same video programs for 10 minutes. One smart phone (top image) contains 2 sheets of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A process for producing a graphene oxide-coated graphitic foil, said process comprising: (a) preparing a core or substrate layer of a graphitic material; (b) preparing a graphene oxide gel having graphene oxide molecules dispersed in a fluid medium, wherein the graphene oxide gel is optically transparent or translucent; (c) depositing graphene oxide gel onto a surface of the core or substrate layer to form a coating thereon; (d) partially or completely removing said fluid medium from the coating to form a coated laminate; and (e) heat-treating the coated substrate or the coated laminate to form said graphene oxide-coated graphitic foil, wherein the graphene oxide coating layer has a thickness from 1 nm to 10 mm, an oxygen content of 0.01% to 40% by weight based on the total graphene oxide weight, and comprises a unitary graphene layer or a single crystal of oriented graphene planes that are parallel to one another, and wherein the graphene-coated graphitic foil has a thickness from 10 p m to 10 mm, a thermal conductivity of 600 W/mK or greater, a physical density of 1.4 g/cm 3 or greater, and a tensile strength of 10 MPa or greater. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is prepared by immersing a graphitic material in an oxidizing agent and wherein said graphitic material is selected from natural graphite, artificial graphite, mesophase carbon, mesophase pitch, mesocarbon microbead, soft carbon, hard carbon, coke, carbon fiber, carbon nanofiber, carbon nanotube, or a combination thereof. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel has an oxygen content from 0.01% to 46% by weight. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel comprises graphene oxide molecules having a molecular weight between 200 g/mole and 43,000 g/mole. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer comprises flexible graphite foil, graphene film, graphene paper, graphite particle paper, carbon-carbon composite film, carbon nanotube paper, carbon nanofiber mat, graphite-epoxy composite films, carbon-carbon composite, or carbon paper. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is graphene film comprising pristine graphene, g raphene oxide, reduced graphene oxide, g raphene fluoride, hydrogenated graphene, doped graphene. functionalized graphene, multi-layer graphene sheets having a thickness of 3.35 nm to 33.5 nm, pristine graphene containing no oxygen, and combinations thereof. Original
The process for producin g the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is flexible graphite foil produced by re- compression of exfoliated graphite worms or exfoliated graphite flakes of natural graphite and/or artificial graphite. Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1. wherein the graphitic core has a thickness from 1 nm to 200 pm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step of heat-treating the coated substrate or the coated laminate is carried out at a temperature from 1 00° C to 3000 °C. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, including chemical linking or merging of graphene oxide molecules to fo rm; a unitary graphene layer. Currently amended
The process for producing the g raphene oxide-coated graphitic foil of claim 1. further comprising a step of compressing said graphene oxide-coated graphitic foil before, during, or after heat treatment. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, further comprising a step of depositing a layer of electrically insulating material onto the graphene oxide-coated graphitic foil. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step (a) of preparing a core or substrate layer of a graphitic material includes feeding a sheet of a graphitic material from a roller to a coating zone, and the process comprises a step of depositing graphene oxide gel onto a surface of said sheet of a graphitic material to form a graphene oxide gel-coated sheet and further comprises collecting said coated sheet on a collector roller. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a thermal conductivity from 600 W/mK to 1,900 W/mK. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a physical density from 1.4 g/cm 3 to 2.24 g/cm 3 Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has an electrical conductivity from 5.000 S/cm to 20.000 S/cm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has a tensile strength greater from 40 MPa to 120 MPa. Original
The process for producing the graphene graphene oxide-coated graphitic foil has a Rockwell oxide-coated graphitic foil of claim 1, wherein the hardness from 60 to 88. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide-coated graphitic foil
Materials described outside the worked examples.
graphene oxide coating layer (unitary graphene layer/graphene single crystal)
graphene oxide gel
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene oxide-coated graphitic foil (claim range) | 600–1900 W/mK | — |
physical density of graphene oxide-coated graphitic foil (claim range) | 1.4–2.24 g/cm3 | — |
tensile strength of graphene oxide-coated graphitic foil (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,861,617Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite foils and flexible graphite composites) …
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 4(b) Thermal conductivity values of the GO layer alone (-), GO-coated flexible graphite (FG) foil (+), and polyimide-derived pyrolytic graphite (PG) …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
FIG. 6 Surface temperature fields of two identical smart phones running the same video programs for 10 minutes. One smart phone (top image) contains 2 sheets of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A process for producing a graphene oxide-coated graphitic foil, said process comprising: (a) preparing a core or substrate layer of a graphitic material; (b) preparing a graphene oxide gel having graphene oxide molecules dispersed in a fluid medium, wherein the graphene oxide gel is optically transparent or translucent; (c) depositing graphene oxide gel onto a surface of the core or substrate layer to form a coating thereon; (d) partially or completely removing said fluid medium from the coating to form a coated laminate; and (e) heat-treating the coated substrate or the coated laminate to form said graphene oxide-coated graphitic foil, wherein the graphene oxide coating layer has a thickness from 1 nm to 10 mm, an oxygen content of 0.01% to 40% by weight based on the total graphene oxide weight, and comprises a unitary graphene layer or a single crystal of oriented graphene planes that are parallel to one another, and wherein the graphene-coated graphitic foil has a thickness from 10 p m to 10 mm, a thermal conductivity of 600 W/mK or greater, a physical density of 1.4 g/cm 3 or greater, and a tensile strength of 10 MPa or greater. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is prepared by immersing a graphitic material in an oxidizing agent and wherein said graphitic material is selected from natural graphite, artificial graphite, mesophase carbon, mesophase pitch, mesocarbon microbead, soft carbon, hard carbon, coke, carbon fiber, carbon nanofiber, carbon nanotube, or a combination thereof. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel has an oxygen content from 0.01% to 46% by weight. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel comprises graphene oxide molecules having a molecular weight between 200 g/mole and 43,000 g/mole. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer comprises flexible graphite foil, graphene film, graphene paper, graphite particle paper, carbon-carbon composite film, carbon nanotube paper, carbon nanofiber mat, graphite-epoxy composite films, carbon-carbon composite, or carbon paper. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is graphene film comprising pristine graphene, g raphene oxide, reduced graphene oxide, g raphene fluoride, hydrogenated graphene, doped graphene. functionalized graphene, multi-layer graphene sheets having a thickness of 3.35 nm to 33.5 nm, pristine graphene containing no oxygen, and combinations thereof. Original
The process for producin g the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is flexible graphite foil produced by re- compression of exfoliated graphite worms or exfoliated graphite flakes of natural graphite and/or artificial graphite. Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1. wherein the graphitic core has a thickness from 1 nm to 200 pm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step of heat-treating the coated substrate or the coated laminate is carried out at a temperature from 1 00° C to 3000 °C. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, including chemical linking or merging of graphene oxide molecules to fo rm; a unitary graphene layer. Currently amended
The process for producing the g raphene oxide-coated graphitic foil of claim 1. further comprising a step of compressing said graphene oxide-coated graphitic foil before, during, or after heat treatment. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, further comprising a step of depositing a layer of electrically insulating material onto the graphene oxide-coated graphitic foil. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step (a) of preparing a core or substrate layer of a graphitic material includes feeding a sheet of a graphitic material from a roller to a coating zone, and the process comprises a step of depositing graphene oxide gel onto a surface of said sheet of a graphitic material to form a graphene oxide gel-coated sheet and further comprises collecting said coated sheet on a collector roller. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a thermal conductivity from 600 W/mK to 1,900 W/mK. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a physical density from 1.4 g/cm 3 to 2.24 g/cm 3 Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has an electrical conductivity from 5.000 S/cm to 20.000 S/cm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has a tensile strength greater from 40 MPa to 120 MPa. Original
The process for producing the graphene graphene oxide-coated graphitic foil has a Rockwell oxide-coated graphitic foil of claim 1, wherein the hardness from 60 to 88. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide-coated graphitic foil
Materials described outside the worked examples.
graphene oxide coating layer (unitary graphene layer/graphene single crystal)
graphene oxide gel
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene oxide-coated graphitic foil (claim range) | 600–1900 W/mK | — |
physical density of graphene oxide-coated graphitic foil (claim range) | 1.4–2.24 g/cm3 | — |
tensile strength of graphene oxide-coated graphitic foil (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,861,617Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 A flow chart illustrating various prior art processes of producing exfoliated graphite products (flexible graphite foils and flexible graphite composites) …
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 4(b) Thermal conductivity values of the GO layer alone (-), GO-coated flexible graphite (FG) foil (+), and polyimide-derived pyrolytic graphite (PG) …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
FIG. 6 Surface temperature fields of two identical smart phones running the same video programs for 10 minutes. One smart phone (top image) contains 2 sheets of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A process for producing a graphene oxide-coated graphitic foil, said process comprising: (a) preparing a core or substrate layer of a graphitic material; (b) preparing a graphene oxide gel having graphene oxide molecules dispersed in a fluid medium, wherein the graphene oxide gel is optically transparent or translucent; (c) depositing graphene oxide gel onto a surface of the core or substrate layer to form a coating thereon; (d) partially or completely removing said fluid medium from the coating to form a coated laminate; and (e) heat-treating the coated substrate or the coated laminate to form said graphene oxide-coated graphitic foil, wherein the graphene oxide coating layer has a thickness from 1 nm to 10 mm, an oxygen content of 0.01% to 40% by weight based on the total graphene oxide weight, and comprises a unitary graphene layer or a single crystal of oriented graphene planes that are parallel to one another, and wherein the graphene-coated graphitic foil has a thickness from 10 p m to 10 mm, a thermal conductivity of 600 W/mK or greater, a physical density of 1.4 g/cm 3 or greater, and a tensile strength of 10 MPa or greater. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is prepared by immersing a graphitic material in an oxidizing agent and wherein said graphitic material is selected from natural graphite, artificial graphite, mesophase carbon, mesophase pitch, mesocarbon microbead, soft carbon, hard carbon, coke, carbon fiber, carbon nanofiber, carbon nanotube, or a combination thereof. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel has an oxygen content from 0.01% to 46% by weight. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel is composed of graphene oxide molecules dispersed in an acidic medium having a pH value of no higher than 5. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphene oxide gel comprises graphene oxide molecules having a molecular weight between 200 g/mole and 43,000 g/mole. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer comprises flexible graphite foil, graphene film, graphene paper, graphite particle paper, carbon-carbon composite film, carbon nanotube paper, carbon nanofiber mat, graphite-epoxy composite films, carbon-carbon composite, or carbon paper. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is graphene film comprising pristine graphene, g raphene oxide, reduced graphene oxide, g raphene fluoride, hydrogenated graphene, doped graphene. functionalized graphene, multi-layer graphene sheets having a thickness of 3.35 nm to 33.5 nm, pristine graphene containing no oxygen, and combinations thereof. Original
The process for producin g the graphene oxide-coated graphitic foil of claim 1, wherein said graphitic substrate or core layer is flexible graphite foil produced by re- compression of exfoliated graphite worms or exfoliated graphite flakes of natural graphite and/or artificial graphite. Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1. wherein the graphitic core has a thickness from 1 nm to 200 pm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step of heat-treating the coated substrate or the coated laminate is carried out at a temperature from 1 00° C to 3000 °C. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, including chemical linking or merging of graphene oxide molecules to fo rm; a unitary graphene layer. Currently amended
The process for producing the g raphene oxide-coated graphitic foil of claim 1. further comprising a step of compressing said graphene oxide-coated graphitic foil before, during, or after heat treatment. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, further comprising a step of depositing a layer of electrically insulating material onto the graphene oxide-coated graphitic foil. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein said step (a) of preparing a core or substrate layer of a graphitic material includes feeding a sheet of a graphitic material from a roller to a coating zone, and the process comprises a step of depositing graphene oxide gel onto a surface of said sheet of a graphitic material to form a graphene oxide gel-coated sheet and further comprises collecting said coated sheet on a collector roller. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a thermal conductivity from 600 W/mK to 1,900 W/mK. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1. wherein the graphene oxide-coated g raphitic foil has a physical density from 1.4 g/cm 3 to 2.24 g/cm 3 Original
The process for producing the g raphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has an electrical conductivity from 5.000 S/cm to 20.000 S/cm. Original
The process for producing the graphene oxide-coated graphitic foil of claim 1, wherein the graphene oxide-coated graphitic foil has a tensile strength greater from 40 MPa to 120 MPa. Original
The process for producing the graphene graphene oxide-coated graphitic foil has a Rockwell oxide-coated graphitic foil of claim 1, wherein the hardness from 60 to 88. Original
Layer stacks claimed or described, ordered top of device to substrate.
graphene oxide-coated graphitic foil
Materials described outside the worked examples.
graphene oxide coating layer (unitary graphene layer/graphene single crystal)
graphene oxide gel
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(b) An SEM image of a cross-section of a flexible graphite foil, showing many graphite flakes with orientations not parallel to the flexible graphite foil …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene oxide-coated graphitic foil (claim range) | 600–1900 W/mK | — |
physical density of graphene oxide-coated graphitic foil (claim range) | 1.4–2.24 g/cm3 | — |
tensile strength of graphene oxide-coated graphitic foil (claim range) |
Related documents with shared materials, methods, properties, or citations.
graphitic substrate or core layer
graphitic material for GO gel precursor
pristine graphene/graphene film
electrically insulating material (PET or epoxy resin)
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
| 10–120 MPa |
| — |
electrical conductivity of graphene oxide-coated graphitic foil (claim range) | 5000–20000 S/cm | — |
Rockwell hardness of graphene oxide-coated graphitic foil (claim range) | 60–88 Rockwell | — |
thermal conductivity of graphene oxide-coated laminate (described embodiment, >1000 W/mK, can reach >1700 W/mK) | ≥ 1000 W/mK | — |
electrical conductivity of graphene oxide-coated laminate (described embodiment, >3000 S/cm, often >10000 S/cm) | ≥ 3000 S/cm | — |
Duration | 15–120 s | — |
Thickness | 3.35–33.5 nm | — |
Thickness | 6.7–20 nm | — |
Duration | 900–7200 s | — |
Temperature | 700–2800 °C | — |
Pressure | 12–121 MPa | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 698–1803 W | — |
Temperature | 800–1050 °C | — |
— | 140–190 W | — |
— | 10–30 W | — |
Temperature | 0–60 °C | — |
Temperature | 100–1000 °C | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2000 W | — |
Duration | 1–3 hours | — |
Temperature | 2500–3000 °C | — |
Temperature | 2800–3200 °C | — |
— | 1600–1700 W | — |
Temperature | 100–150 °C | — |
Temperature | 0–1500 °C | — |
— | ≤ 237 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Pressure | ≥ 10 MPa | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 120 MPa | — |
Temperature | ≥ 1 °C | — |
Temperature | ≥ 1500 °C | — |
Temperature | ≥ 2500 °C | — |
Thickness | 1–10000000 nm | — |
Temperature | 0–3000 °C | — |
Pressure | 40–120 MPa | — |
Thickness | 0.34–10000000 nm | — |
Thickness | 1–1000000 nm | — |
Thickness | 0.5–10000000 nm | — |
Temperature | 300–1500 °C | — |
Temperature | 1500–2500 °C | — |
Thickness | ≥ 0.34 nm | — |
Thickness | ≥ 0.5 nm | — |
Pressure | ≥ 60 MPa | — |
graphitic substrate or core layer
graphitic material for GO gel precursor
pristine graphene/graphene film
electrically insulating material (PET or epoxy resin)
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
| 10–120 MPa |
| — |
electrical conductivity of graphene oxide-coated graphitic foil (claim range) | 5000–20000 S/cm | — |
Rockwell hardness of graphene oxide-coated graphitic foil (claim range) | 60–88 Rockwell | — |
thermal conductivity of graphene oxide-coated laminate (described embodiment, >1000 W/mK, can reach >1700 W/mK) | ≥ 1000 W/mK | — |
electrical conductivity of graphene oxide-coated laminate (described embodiment, >3000 S/cm, often >10000 S/cm) | ≥ 3000 S/cm | — |
Duration | 15–120 s | — |
Thickness | 3.35–33.5 nm | — |
Thickness | 6.7–20 nm | — |
Duration | 900–7200 s | — |
Temperature | 700–2800 °C | — |
Pressure | 12–121 MPa | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 698–1803 W | — |
Temperature | 800–1050 °C | — |
— | 140–190 W | — |
— | 10–30 W | — |
Temperature | 0–60 °C | — |
Temperature | 100–1000 °C | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2000 W | — |
Duration | 1–3 hours | — |
Temperature | 2500–3000 °C | — |
Temperature | 2800–3200 °C | — |
— | 1600–1700 W | — |
Temperature | 100–150 °C | — |
Temperature | 0–1500 °C | — |
— | ≤ 237 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Pressure | ≥ 10 MPa | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 120 MPa | — |
Temperature | ≥ 1 °C | — |
Temperature | ≥ 1500 °C | — |
Temperature | ≥ 2500 °C | — |
Thickness | 1–10000000 nm | — |
Temperature | 0–3000 °C | — |
Pressure | 40–120 MPa | — |
Thickness | 0.34–10000000 nm | — |
Thickness | 1–1000000 nm | — |
Thickness | 0.5–10000000 nm | — |
Temperature | 300–1500 °C | — |
Temperature | 1500–2500 °C | — |
Thickness | ≥ 0.34 nm | — |
Thickness | ≥ 0.5 nm | — |
Pressure | ≥ 60 MPa | — |
graphitic substrate or core layer
graphitic material for GO gel precursor
pristine graphene/graphene film
electrically insulating material (PET or epoxy resin)
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
| 10–120 MPa |
| — |
electrical conductivity of graphene oxide-coated graphitic foil (claim range) | 5000–20000 S/cm | — |
Rockwell hardness of graphene oxide-coated graphitic foil (claim range) | 60–88 Rockwell | — |
thermal conductivity of graphene oxide-coated laminate (described embodiment, >1000 W/mK, can reach >1700 W/mK) | ≥ 1000 W/mK | — |
electrical conductivity of graphene oxide-coated laminate (described embodiment, >3000 S/cm, often >10000 S/cm) | ≥ 3000 S/cm | — |
Duration | 15–120 s | — |
Thickness | 3.35–33.5 nm | — |
Thickness | 6.7–20 nm | — |
Duration | 900–7200 s | — |
Temperature | 700–2800 °C | — |
Pressure | 12–121 MPa | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 698–1803 W | — |
Temperature | 800–1050 °C | — |
— | 140–190 W | — |
— | 10–30 W | — |
Temperature | 0–60 °C | — |
Temperature | 100–1000 °C | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2000 W | — |
Duration | 1–3 hours | — |
Temperature | 2500–3000 °C | — |
Temperature | 2800–3200 °C | — |
— | 1600–1700 W | — |
Temperature | 100–150 °C | — |
Temperature | 0–1500 °C | — |
— | ≤ 237 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Pressure | ≥ 10 MPa | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 120 MPa | — |
Temperature | ≥ 1 °C | — |
Temperature | ≥ 1500 °C | — |
Temperature | ≥ 2500 °C | — |
Thickness | 1–10000000 nm | — |
Temperature | 0–3000 °C | — |
Pressure | 40–120 MPa | — |
Thickness | 0.34–10000000 nm | — |
Thickness | 1–1000000 nm | — |
Thickness | 0.5–10000000 nm | — |
Temperature | 300–1500 °C | — |
Temperature | 1500–2500 °C | — |
Thickness | ≥ 0.34 nm | — |
Thickness | ≥ 0.5 nm | — |
Pressure | ≥ 60 MPa | — |
graphitic substrate or core layer
graphitic material for GO gel precursor
pristine graphene/graphene film
electrically insulating material (PET or epoxy resin)
FIG. 3(a) A SEM image of a GO coating layer cross-section wherein multiple graphene sheets, originally 30 nm⁻² p m in lateral dimension, have been oxidized, …
FIG. 5(b) Scratch visibility of a series of GO-coated FG foils plotted as a function of the coating- to-core layer thickness ratio.
| 10–120 MPa |
| — |
electrical conductivity of graphene oxide-coated graphitic foil (claim range) | 5000–20000 S/cm | — |
Rockwell hardness of graphene oxide-coated graphitic foil (claim range) | 60–88 Rockwell | — |
thermal conductivity of graphene oxide-coated laminate (described embodiment, >1000 W/mK, can reach >1700 W/mK) | ≥ 1000 W/mK | — |
electrical conductivity of graphene oxide-coated laminate (described embodiment, >3000 S/cm, often >10000 S/cm) | ≥ 3000 S/cm | — |
Duration | 15–120 s | — |
Thickness | 3.35–33.5 nm | — |
Thickness | 6.7–20 nm | — |
Duration | 900–7200 s | — |
Temperature | 700–2800 °C | — |
Pressure | 12–121 MPa | — |
Duration | 1–5 hours | — |
— | 237–582 W | — |
— | 983–1807 W | — |
— | 698–1803 W | — |
Temperature | 800–1050 °C | — |
— | 140–190 W | — |
— | 10–30 W | — |
Temperature | 0–60 °C | — |
Temperature | 100–1000 °C | — |
— | 3000–5000 W | — |
— | 140–300 W | — |
— | 600–2000 W | — |
Duration | 1–3 hours | — |
Temperature | 2500–3000 °C | — |
Temperature | 2800–3200 °C | — |
— | 1600–1700 W | — |
Temperature | 100–150 °C | — |
Temperature | 0–1500 °C | — |
— | ≤ 237 W | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 1 mm | — |
Pressure | ≥ 10 MPa | — |
Pressure | ≥ 40 MPa | — |
Pressure | ≥ 120 MPa | — |
Temperature | ≥ 1 °C | — |
Temperature | ≥ 1500 °C | — |
Temperature | ≥ 2500 °C | — |
Thickness | 1–10000000 nm | — |
Temperature | 0–3000 °C | — |
Pressure | 40–120 MPa | — |
Thickness | 0.34–10000000 nm | — |
Thickness | 1–1000000 nm | — |
Thickness | 0.5–10000000 nm | — |
Temperature | 300–1500 °C | — |
Temperature | 1500–2500 °C | — |
Thickness | ≥ 0.34 nm | — |
Thickness | ≥ 0.5 nm | — |
Pressure | ≥ 60 MPa | — |