Patent
US 10,683,590Title: GRAPHENE FIBER AND METHOD OF MANUFACTURING SAME ¾ 110 '4
Jie Lian, Guoqing Xin
Rensselaer Polytechnic Institute·19 January 2017·US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,683,590Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a schematic perspective view of a portion of a known graphene fiber;
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
FIG. 13 shows a flow diagram of a method according to an illustrative embodiment of the invention. It is noted that the drawings of the invention are not to …
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 fiber comprising: a plurality of intercalated graphene sheets including: a plurality of large-sized graphene sheets; and a plurality of small-sized graphene sheets, wherein at least one of the plurality of small-sized graphene sheets is disposed be- tween at least two of the plurality of large-sized graphene sheets. Original
The graphene fiber of claim 1, wherein each of the plurality of large-sized graphene sheets is between about 1 m and about 100 m in at least one dimension. Original
The graphene fiber of claim 1, wherein each of the small-sized graphene sheets is between about 20 nm and about 5 m in at least one dimension. Original
The graphene fiber of claim 1, wherein the plurality of small-sized graphene sheets comprises between about 10 wt% and about 30 wt% of the graphene fiber. Original
The graphene fiber of claim 1, wherein the graphene fiber has a thermal conductivity between about 500 Wm-1K⁻¹ and about 1340 Wm-1K⁻¹. Original
The graphene fiber of claim 1, wherein the graphene fiber has an electrical conductivity between about 0.9 x 105 S/m and about 2.25 x 105 S/m. Original
The graphene fiber of claim 1, wherein the graphene fiber has a tensile strength between about 600 MPa and about 1140 MPa. Original
The graphene fiber of claim 1, wherein the graphene fiber has a Young's modulus between about 40 GPa and about 140 GPa. Original
A method of manufacturing a graphene fiber with aligned structures, the method comprising: mixing a quantity of a dispersion of large-sized graphene oxide (LGGO) and a quan- tity of a dispersion of small-sized graphene oxide (SMGO); spinning the mixed LGGO/SMGO dispersions to form a graphene oxide (GO) fiber; and annealing the GO fiber at high temperatures for carbonization and graphitization to form a graphene fiber. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at proportions of between about 70 wt% and about 90 wt% LGGO dispersion and between about 30 wt% and about 10 wt% SMGO dispersion. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at a proportion of about 70 wt% LGGO dispersion and about 30 wt% SMGO dispersion. Original
The method of claim 13, wherein the LGGO dispersion includes LGGO sheets of between about 1 m and about 100 m in at least one dimension. Original
1 7. The method of claim 13, wherein the SMGO dispersion includes SMGO sheets of between about 20 nm and about 5 m in at least one dimension. Original
The method of claim 13, wherein spinning includes wet-spinning and dry- spinning. Original
The method of claim 13, wherein annealing includes annealing the GO fiber at a temperature between about 1400 0 C and about 3000 0 C. Original
The method of claim 13, wherein any or all of the LGGO dispersion, the SMGO dispersion, or the LGGO/SMGO dispersion includes as a solvent water and/or a compatible organic solvent selected from a group consisting of: N-Methyl-2-pyrrolidone and dimethylformamide. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials2 process steps
LGGO was prepared from graphite powders by a modified Hummers' method, then expanded at 750 W microwave irradiation for 90 seconds to obtain worm-like expanded graphite. LGGO and SMGO dispersions were mixed (e.g., 70 wt% LGGO/30 wt% SMGO), wet-spun into GO fibers, and annealed at temperatures up to 2850°C for carbonization and graphitization. Fibers containing ~30 wt% SMGO achieved tensile strengths of 1080 (±61) MPa, thermal conductivities up to 1290 (±53) W m⁻¹ K⁻¹, and electrical conductivities up to 2.21 (±0.06) × 10⁵ S/m.
Layer stacks claimed or described, ordered top of device to substrate.
graphene fiber with intercalated large- and small-sized graphene sheets
Materials described outside the worked examples.
large-sized graphene sheets
small-sized graphene sheets
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene fiber (claimed range) | 500–1340 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber (claimed range) | 90000–225000 S/m |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,683,590Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a schematic perspective view of a portion of a known graphene fiber;
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
FIG. 13 shows a flow diagram of a method according to an illustrative embodiment of the invention. It is noted that the drawings of the invention are not to …
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 fiber comprising: a plurality of intercalated graphene sheets including: a plurality of large-sized graphene sheets; and a plurality of small-sized graphene sheets, wherein at least one of the plurality of small-sized graphene sheets is disposed be- tween at least two of the plurality of large-sized graphene sheets. Original
The graphene fiber of claim 1, wherein each of the plurality of large-sized graphene sheets is between about 1 m and about 100 m in at least one dimension. Original
The graphene fiber of claim 1, wherein each of the small-sized graphene sheets is between about 20 nm and about 5 m in at least one dimension. Original
The graphene fiber of claim 1, wherein the plurality of small-sized graphene sheets comprises between about 10 wt% and about 30 wt% of the graphene fiber. Original
The graphene fiber of claim 1, wherein the graphene fiber has a thermal conductivity between about 500 Wm-1K⁻¹ and about 1340 Wm-1K⁻¹. Original
The graphene fiber of claim 1, wherein the graphene fiber has an electrical conductivity between about 0.9 x 105 S/m and about 2.25 x 105 S/m. Original
The graphene fiber of claim 1, wherein the graphene fiber has a tensile strength between about 600 MPa and about 1140 MPa. Original
The graphene fiber of claim 1, wherein the graphene fiber has a Young's modulus between about 40 GPa and about 140 GPa. Original
A method of manufacturing a graphene fiber with aligned structures, the method comprising: mixing a quantity of a dispersion of large-sized graphene oxide (LGGO) and a quan- tity of a dispersion of small-sized graphene oxide (SMGO); spinning the mixed LGGO/SMGO dispersions to form a graphene oxide (GO) fiber; and annealing the GO fiber at high temperatures for carbonization and graphitization to form a graphene fiber. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at proportions of between about 70 wt% and about 90 wt% LGGO dispersion and between about 30 wt% and about 10 wt% SMGO dispersion. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at a proportion of about 70 wt% LGGO dispersion and about 30 wt% SMGO dispersion. Original
The method of claim 13, wherein the LGGO dispersion includes LGGO sheets of between about 1 m and about 100 m in at least one dimension. Original
1 7. The method of claim 13, wherein the SMGO dispersion includes SMGO sheets of between about 20 nm and about 5 m in at least one dimension. Original
The method of claim 13, wherein spinning includes wet-spinning and dry- spinning. Original
The method of claim 13, wherein annealing includes annealing the GO fiber at a temperature between about 1400 0 C and about 3000 0 C. Original
The method of claim 13, wherein any or all of the LGGO dispersion, the SMGO dispersion, or the LGGO/SMGO dispersion includes as a solvent water and/or a compatible organic solvent selected from a group consisting of: N-Methyl-2-pyrrolidone and dimethylformamide. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials2 process steps
LGGO was prepared from graphite powders by a modified Hummers' method, then expanded at 750 W microwave irradiation for 90 seconds to obtain worm-like expanded graphite. LGGO and SMGO dispersions were mixed (e.g., 70 wt% LGGO/30 wt% SMGO), wet-spun into GO fibers, and annealed at temperatures up to 2850°C for carbonization and graphitization. Fibers containing ~30 wt% SMGO achieved tensile strengths of 1080 (±61) MPa, thermal conductivities up to 1290 (±53) W m⁻¹ K⁻¹, and electrical conductivities up to 2.21 (±0.06) × 10⁵ S/m.
Layer stacks claimed or described, ordered top of device to substrate.
graphene fiber with intercalated large- and small-sized graphene sheets
Materials described outside the worked examples.
large-sized graphene sheets
small-sized graphene sheets
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene fiber (claimed range) | 500–1340 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber (claimed range) | 90000–225000 S/m |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,683,590Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a schematic perspective view of a portion of a known graphene fiber;
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
FIG. 13 shows a flow diagram of a method according to an illustrative embodiment of the invention. It is noted that the drawings of the invention are not to …
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 fiber comprising: a plurality of intercalated graphene sheets including: a plurality of large-sized graphene sheets; and a plurality of small-sized graphene sheets, wherein at least one of the plurality of small-sized graphene sheets is disposed be- tween at least two of the plurality of large-sized graphene sheets. Original
The graphene fiber of claim 1, wherein each of the plurality of large-sized graphene sheets is between about 1 m and about 100 m in at least one dimension. Original
The graphene fiber of claim 1, wherein each of the small-sized graphene sheets is between about 20 nm and about 5 m in at least one dimension. Original
The graphene fiber of claim 1, wherein the plurality of small-sized graphene sheets comprises between about 10 wt% and about 30 wt% of the graphene fiber. Original
The graphene fiber of claim 1, wherein the graphene fiber has a thermal conductivity between about 500 Wm-1K⁻¹ and about 1340 Wm-1K⁻¹. Original
The graphene fiber of claim 1, wherein the graphene fiber has an electrical conductivity between about 0.9 x 105 S/m and about 2.25 x 105 S/m. Original
The graphene fiber of claim 1, wherein the graphene fiber has a tensile strength between about 600 MPa and about 1140 MPa. Original
The graphene fiber of claim 1, wherein the graphene fiber has a Young's modulus between about 40 GPa and about 140 GPa. Original
A method of manufacturing a graphene fiber with aligned structures, the method comprising: mixing a quantity of a dispersion of large-sized graphene oxide (LGGO) and a quan- tity of a dispersion of small-sized graphene oxide (SMGO); spinning the mixed LGGO/SMGO dispersions to form a graphene oxide (GO) fiber; and annealing the GO fiber at high temperatures for carbonization and graphitization to form a graphene fiber. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at proportions of between about 70 wt% and about 90 wt% LGGO dispersion and between about 30 wt% and about 10 wt% SMGO dispersion. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at a proportion of about 70 wt% LGGO dispersion and about 30 wt% SMGO dispersion. Original
The method of claim 13, wherein the LGGO dispersion includes LGGO sheets of between about 1 m and about 100 m in at least one dimension. Original
1 7. The method of claim 13, wherein the SMGO dispersion includes SMGO sheets of between about 20 nm and about 5 m in at least one dimension. Original
The method of claim 13, wherein spinning includes wet-spinning and dry- spinning. Original
The method of claim 13, wherein annealing includes annealing the GO fiber at a temperature between about 1400 0 C and about 3000 0 C. Original
The method of claim 13, wherein any or all of the LGGO dispersion, the SMGO dispersion, or the LGGO/SMGO dispersion includes as a solvent water and/or a compatible organic solvent selected from a group consisting of: N-Methyl-2-pyrrolidone and dimethylformamide. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials2 process steps
LGGO was prepared from graphite powders by a modified Hummers' method, then expanded at 750 W microwave irradiation for 90 seconds to obtain worm-like expanded graphite. LGGO and SMGO dispersions were mixed (e.g., 70 wt% LGGO/30 wt% SMGO), wet-spun into GO fibers, and annealed at temperatures up to 2850°C for carbonization and graphitization. Fibers containing ~30 wt% SMGO achieved tensile strengths of 1080 (±61) MPa, thermal conductivities up to 1290 (±53) W m⁻¹ K⁻¹, and electrical conductivities up to 2.21 (±0.06) × 10⁵ S/m.
Layer stacks claimed or described, ordered top of device to substrate.
graphene fiber with intercalated large- and small-sized graphene sheets
Materials described outside the worked examples.
large-sized graphene sheets
small-sized graphene sheets
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene fiber (claimed range) | 500–1340 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber (claimed range) | 90000–225000 S/m |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,683,590Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a schematic perspective view of a portion of a known graphene fiber;
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
FIG. 13 shows a flow diagram of a method according to an illustrative embodiment of the invention. It is noted that the drawings of the invention are not to …
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 fiber comprising: a plurality of intercalated graphene sheets including: a plurality of large-sized graphene sheets; and a plurality of small-sized graphene sheets, wherein at least one of the plurality of small-sized graphene sheets is disposed be- tween at least two of the plurality of large-sized graphene sheets. Original
The graphene fiber of claim 1, wherein each of the plurality of large-sized graphene sheets is between about 1 m and about 100 m in at least one dimension. Original
The graphene fiber of claim 1, wherein each of the small-sized graphene sheets is between about 20 nm and about 5 m in at least one dimension. Original
The graphene fiber of claim 1, wherein the plurality of small-sized graphene sheets comprises between about 10 wt% and about 30 wt% of the graphene fiber. Original
The graphene fiber of claim 1, wherein the graphene fiber has a thermal conductivity between about 500 Wm-1K⁻¹ and about 1340 Wm-1K⁻¹. Original
The graphene fiber of claim 1, wherein the graphene fiber has an electrical conductivity between about 0.9 x 105 S/m and about 2.25 x 105 S/m. Original
The graphene fiber of claim 1, wherein the graphene fiber has a tensile strength between about 600 MPa and about 1140 MPa. Original
The graphene fiber of claim 1, wherein the graphene fiber has a Young's modulus between about 40 GPa and about 140 GPa. Original
A method of manufacturing a graphene fiber with aligned structures, the method comprising: mixing a quantity of a dispersion of large-sized graphene oxide (LGGO) and a quan- tity of a dispersion of small-sized graphene oxide (SMGO); spinning the mixed LGGO/SMGO dispersions to form a graphene oxide (GO) fiber; and annealing the GO fiber at high temperatures for carbonization and graphitization to form a graphene fiber. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at proportions of between about 70 wt% and about 90 wt% LGGO dispersion and between about 30 wt% and about 10 wt% SMGO dispersion. Original
The method of claim 13, wherein mixing includes mixing the LGGO dis- persion and the SMGO dispersion at a proportion of about 70 wt% LGGO dispersion and about 30 wt% SMGO dispersion. Original
The method of claim 13, wherein the LGGO dispersion includes LGGO sheets of between about 1 m and about 100 m in at least one dimension. Original
1 7. The method of claim 13, wherein the SMGO dispersion includes SMGO sheets of between about 20 nm and about 5 m in at least one dimension. Original
The method of claim 13, wherein spinning includes wet-spinning and dry- spinning. Original
The method of claim 13, wherein annealing includes annealing the GO fiber at a temperature between about 1400 0 C and about 3000 0 C. Original
The method of claim 13, wherein any or all of the LGGO dispersion, the SMGO dispersion, or the LGGO/SMGO dispersion includes as a solvent water and/or a compatible organic solvent selected from a group consisting of: N-Methyl-2-pyrrolidone and dimethylformamide. Original
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
3 materials2 process steps
LGGO was prepared from graphite powders by a modified Hummers' method, then expanded at 750 W microwave irradiation for 90 seconds to obtain worm-like expanded graphite. LGGO and SMGO dispersions were mixed (e.g., 70 wt% LGGO/30 wt% SMGO), wet-spun into GO fibers, and annealed at temperatures up to 2850°C for carbonization and graphitization. Fibers containing ~30 wt% SMGO achieved tensile strengths of 1080 (±61) MPa, thermal conductivities up to 1290 (±53) W m⁻¹ K⁻¹, and electrical conductivities up to 2.21 (±0.06) × 10⁵ S/m.
Layer stacks claimed or described, ordered top of device to substrate.
graphene fiber with intercalated large- and small-sized graphene sheets
Materials described outside the worked examples.
large-sized graphene sheets
small-sized graphene sheets
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2) between adjacent large-size graphene sheets 110. This increases both the tensile strength and Young's modulus of graphene fiber 200 while also …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
thermal conductivity of graphene fiber (claimed range) | 500–1340 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber (claimed range) | 90000–225000 S/m |
Related documents with shared materials, methods, properties, or citations.
water
H₂O
N-Methyl-2-pyrrolidone
dimethylformamide
graphite powder
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
tensile strength of graphene fiber (claimed range) | 600–1140 MPa | graphene fiber |
Young's modulus of graphene fiber (claimed range) | 40–140 GPa | graphene fiber |
tensile strength of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1080 MPa | graphene fiber |
thermal conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1290 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 221000 S/m | graphene fiber |
Pressure | 616–823 MPa | — |
Pressure | 705–820 MPa | — |
Temperature | 2000–2200 °C | — |
Thickness | 40–50 nm | — |
water
H₂O
N-Methyl-2-pyrrolidone
dimethylformamide
graphite powder
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
tensile strength of graphene fiber (claimed range) | 600–1140 MPa | graphene fiber |
Young's modulus of graphene fiber (claimed range) | 40–140 GPa | graphene fiber |
tensile strength of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1080 MPa | graphene fiber |
thermal conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1290 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 221000 S/m | graphene fiber |
Pressure | 616–823 MPa | — |
Pressure | 705–820 MPa | — |
Temperature | 2000–2200 °C | — |
Thickness | 40–50 nm | — |
water
H₂O
N-Methyl-2-pyrrolidone
dimethylformamide
graphite powder
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
tensile strength of graphene fiber (claimed range) | 600–1140 MPa | graphene fiber |
Young's modulus of graphene fiber (claimed range) | 40–140 GPa | graphene fiber |
tensile strength of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1080 MPa | graphene fiber |
thermal conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1290 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 221000 S/m | graphene fiber |
Pressure | 616–823 MPa | — |
Pressure | 705–820 MPa | — |
Temperature | 2000–2200 °C | — |
Thickness | 40–50 nm | — |
water
H₂O
N-Methyl-2-pyrrolidone
dimethylformamide
graphite powder
FIG. 3, for example, shows the comparative mechanical strengths on a typical stress-strain curve of a graphene fiber prepared from LGGO only (annealed at 1600 ° …
FIG. 4 shows a graph of the misalignment of graphene sheets in a graphene fiber prepared using various proportions of small-size graphene oxide (SMGO) according …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 5, also reflecting the properties of graphene fibers annealed at 1800 ° C according to various embodiments of the invention. Increasing proportions of SMGO …
FIG. 6 shows a graph of the thermal conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIG. 7 shows a graph of the electrical conductivities of graphene fibers prepared using various proportions of SMGO according to various embodiments of the …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIGS. 8 and 9, both conductivities increase with increasing annealing temperature, but were consistently higher for Applicant's 30 wt% SMGO graphene fiber. The …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 9 shows a graph of the comparative electrical conductivities of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 10 shows a graph of the comparative tensile strengths of known graphene fibers and graphene fibers annealed at various temperatures according to various …
FIG. 11 shows a graph of the comparative Young's modulus values of known graphene fibers and graphene fibers annealed at various temperatures according to …
FIG. 12. These values are orders of magnitude larger than the nanocrystalline graphitic domains (several tens of nm) inside mesophase pitch-based and PAN-based …
tensile strength of graphene fiber (claimed range) | 600–1140 MPa | graphene fiber |
Young's modulus of graphene fiber (claimed range) | 40–140 GPa | graphene fiber |
tensile strength of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1080 MPa | graphene fiber |
thermal conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 1290 W m-1 K⁻¹ | graphene fiber |
electrical conductivity of graphene fiber with ~30 wt% SMGO after annealing at 2850°C | 221000 S/m | graphene fiber |
Pressure | 616–823 MPa | — |
Pressure | 705–820 MPa | — |
Temperature | 2000–2200 °C | — |
Thickness | 40–50 nm | — |