Patent
US 10,766,772METHOD FOR PREPARING THREE-DIMENSIONAL GRAPHENE STRUCTURE AND ENERGY STORAGE DEVICE
Tae-Young KIM
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,766,772Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart illustrating a method for preparing a three- dimensional graphene structure according to embodiments of the inventive concept; [0021]
FIG. 2A.
FIGS. 3A and 3B, it is observed that the specific surface areas of Experimental Examples 1 to 3 are larger than that of the Comparative Example. In the case of …
FIG. 4 is a cross-sectional view illustrating a three-dimensional graphene structure according to another embodiment. [0048] Referring to
FIG. 5 is a cross-sectional view illustrating an energy storage device according to an embodiment. Hereinafter, descriptions given above are not repeated. …
FIG. 6. Since the specific surface area of the graphene structure 100 of Experimental Example 1 (e) is greater than the specific surface area of the graphene …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a three-dimensional graphene structure, the method comprising: forming a graphene precursor by heating a carbohydrate and a gas generator; forming a graphene structure having a cavity therein by carbonizing the graphene precursor, the cavity havin q an avera q e diameter of about 1 u m to 1 mm; and forming nanopores in the graphene structure, wherein the nanopores pass through an outer surface and an inner surface of the graphene structure[[,]] and are connected with the cavity. Currently amended
The method of claim 1, wherein the forming of the nanopores includes: forming a mixture by adding an activating agent to the graphene structure; and heat treating the mixture. Original
The method of claim 1, wherein the forming of the nanopores includes providing a reaction gas on the graphene structure. Original
The method of claim 1, wherein the graphene structure includes a plurality of graphenes stacked. Original
The method of claim 1, wherein + the nanopores have an average diameter of about 0.1 nm to 50 nm. Currently amended
The method of claims 1, wherein forming the carbohydrate and the gas generator at a temperature
The method of claims 1, wherein the graphene 1800 m 2/g to 3000 m 2/g. New graphene precursor is performed by heating the of about 250 0C to 300 C. New structure has a specific surface area of about
An energy storage device comprising: a first electrode structure including a first current collector and a first graphene structure disposed on the first current collector, in which the first graphene structure has a first cavity therein, the first cavity having an average diameter of about 1 u m to 1 mm, and first nanopores extending through an outer surface and an inner surface of the first graphene structure to be connected with the first cavity; a second electrode structure spaced apart from the first electrode structure and including a second current collector and a second graphene structure disposed on the second current collector, wherein the second graphene structure has a second cavity therein, the second cavity having an average diameter of about 1 u m to 1 mm, and second nanopores extending through an outer surface and an inner surface of the second graphene structure to be connected with the second cavity; an electrolyte interposed between the first electrode structure and the second electrode structure; and a separation film in the electrolyte, wherein the electrolyte is provided in the first cavity, the first nanopores, the second cavity, and the second nanopores. Currently amended
The energy storage device of claim 11, wherein the electrolyte physically contacts the inner surface and the outer surface of the first graphene structure, and the inner surface and the outer surface of the second graphene structure. Original
1 3. The energy storage device of claim 11, wherein the first graphene structure is electrically connected with the first current collector. Original
Layer stacks claimed or described, ordered top of device to substrate.
energy storage device (supercapacitor)
Materials described outside the worked examples.
carbohydrate
gas generator
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Surface Area | 1800–3000 | three-dimensional graphene structure |
Thickness | 0.1–50 nm |
Patent
Atlas literature
Patent
US 10,766,772Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart illustrating a method for preparing a three- dimensional graphene structure according to embodiments of the inventive concept; [0021]
FIG. 2A.
FIGS. 3A and 3B, it is observed that the specific surface areas of Experimental Examples 1 to 3 are larger than that of the Comparative Example. In the case of …
FIG. 4 is a cross-sectional view illustrating a three-dimensional graphene structure according to another embodiment. [0048] Referring to
FIG. 5 is a cross-sectional view illustrating an energy storage device according to an embodiment. Hereinafter, descriptions given above are not repeated. …
FIG. 6. Since the specific surface area of the graphene structure 100 of Experimental Example 1 (e) is greater than the specific surface area of the graphene …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a three-dimensional graphene structure, the method comprising: forming a graphene precursor by heating a carbohydrate and a gas generator; forming a graphene structure having a cavity therein by carbonizing the graphene precursor, the cavity havin q an avera q e diameter of about 1 u m to 1 mm; and forming nanopores in the graphene structure, wherein the nanopores pass through an outer surface and an inner surface of the graphene structure[[,]] and are connected with the cavity. Currently amended
The method of claim 1, wherein the forming of the nanopores includes: forming a mixture by adding an activating agent to the graphene structure; and heat treating the mixture. Original
The method of claim 1, wherein the forming of the nanopores includes providing a reaction gas on the graphene structure. Original
The method of claim 1, wherein the graphene structure includes a plurality of graphenes stacked. Original
The method of claim 1, wherein + the nanopores have an average diameter of about 0.1 nm to 50 nm. Currently amended
The method of claims 1, wherein forming the carbohydrate and the gas generator at a temperature
The method of claims 1, wherein the graphene 1800 m 2/g to 3000 m 2/g. New graphene precursor is performed by heating the of about 250 0C to 300 C. New structure has a specific surface area of about
An energy storage device comprising: a first electrode structure including a first current collector and a first graphene structure disposed on the first current collector, in which the first graphene structure has a first cavity therein, the first cavity having an average diameter of about 1 u m to 1 mm, and first nanopores extending through an outer surface and an inner surface of the first graphene structure to be connected with the first cavity; a second electrode structure spaced apart from the first electrode structure and including a second current collector and a second graphene structure disposed on the second current collector, wherein the second graphene structure has a second cavity therein, the second cavity having an average diameter of about 1 u m to 1 mm, and second nanopores extending through an outer surface and an inner surface of the second graphene structure to be connected with the second cavity; an electrolyte interposed between the first electrode structure and the second electrode structure; and a separation film in the electrolyte, wherein the electrolyte is provided in the first cavity, the first nanopores, the second cavity, and the second nanopores. Currently amended
The energy storage device of claim 11, wherein the electrolyte physically contacts the inner surface and the outer surface of the first graphene structure, and the inner surface and the outer surface of the second graphene structure. Original
1 3. The energy storage device of claim 11, wherein the first graphene structure is electrically connected with the first current collector. Original
Layer stacks claimed or described, ordered top of device to substrate.
energy storage device (supercapacitor)
Materials described outside the worked examples.
carbohydrate
gas generator
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Surface Area | 1800–3000 | three-dimensional graphene structure |
Thickness | 0.1–50 nm |
Patent
Atlas literature
Patent
US 10,766,772Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart illustrating a method for preparing a three- dimensional graphene structure according to embodiments of the inventive concept; [0021]
FIG. 2A.
FIGS. 3A and 3B, it is observed that the specific surface areas of Experimental Examples 1 to 3 are larger than that of the Comparative Example. In the case of …
FIG. 4 is a cross-sectional view illustrating a three-dimensional graphene structure according to another embodiment. [0048] Referring to
FIG. 5 is a cross-sectional view illustrating an energy storage device according to an embodiment. Hereinafter, descriptions given above are not repeated. …
FIG. 6. Since the specific surface area of the graphene structure 100 of Experimental Example 1 (e) is greater than the specific surface area of the graphene …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a three-dimensional graphene structure, the method comprising: forming a graphene precursor by heating a carbohydrate and a gas generator; forming a graphene structure having a cavity therein by carbonizing the graphene precursor, the cavity havin q an avera q e diameter of about 1 u m to 1 mm; and forming nanopores in the graphene structure, wherein the nanopores pass through an outer surface and an inner surface of the graphene structure[[,]] and are connected with the cavity. Currently amended
The method of claim 1, wherein the forming of the nanopores includes: forming a mixture by adding an activating agent to the graphene structure; and heat treating the mixture. Original
The method of claim 1, wherein the forming of the nanopores includes providing a reaction gas on the graphene structure. Original
The method of claim 1, wherein the graphene structure includes a plurality of graphenes stacked. Original
The method of claim 1, wherein + the nanopores have an average diameter of about 0.1 nm to 50 nm. Currently amended
The method of claims 1, wherein forming the carbohydrate and the gas generator at a temperature
The method of claims 1, wherein the graphene 1800 m 2/g to 3000 m 2/g. New graphene precursor is performed by heating the of about 250 0C to 300 C. New structure has a specific surface area of about
An energy storage device comprising: a first electrode structure including a first current collector and a first graphene structure disposed on the first current collector, in which the first graphene structure has a first cavity therein, the first cavity having an average diameter of about 1 u m to 1 mm, and first nanopores extending through an outer surface and an inner surface of the first graphene structure to be connected with the first cavity; a second electrode structure spaced apart from the first electrode structure and including a second current collector and a second graphene structure disposed on the second current collector, wherein the second graphene structure has a second cavity therein, the second cavity having an average diameter of about 1 u m to 1 mm, and second nanopores extending through an outer surface and an inner surface of the second graphene structure to be connected with the second cavity; an electrolyte interposed between the first electrode structure and the second electrode structure; and a separation film in the electrolyte, wherein the electrolyte is provided in the first cavity, the first nanopores, the second cavity, and the second nanopores. Currently amended
The energy storage device of claim 11, wherein the electrolyte physically contacts the inner surface and the outer surface of the first graphene structure, and the inner surface and the outer surface of the second graphene structure. Original
1 3. The energy storage device of claim 11, wherein the first graphene structure is electrically connected with the first current collector. Original
Layer stacks claimed or described, ordered top of device to substrate.
energy storage device (supercapacitor)
Materials described outside the worked examples.
carbohydrate
gas generator
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Surface Area | 1800–3000 | three-dimensional graphene structure |
Thickness | 0.1–50 nm |
Patent
Atlas literature
Patent
US 10,766,772Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a flow chart illustrating a method for preparing a three- dimensional graphene structure according to embodiments of the inventive concept; [0021]
FIG. 2A.
FIGS. 3A and 3B, it is observed that the specific surface areas of Experimental Examples 1 to 3 are larger than that of the Comparative Example. In the case of …
FIG. 4 is a cross-sectional view illustrating a three-dimensional graphene structure according to another embodiment. [0048] Referring to
FIG. 5 is a cross-sectional view illustrating an energy storage device according to an embodiment. Hereinafter, descriptions given above are not repeated. …
FIG. 6. Since the specific surface area of the graphene structure 100 of Experimental Example 1 (e) is greater than the specific surface area of the graphene …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for preparing a three-dimensional graphene structure, the method comprising: forming a graphene precursor by heating a carbohydrate and a gas generator; forming a graphene structure having a cavity therein by carbonizing the graphene precursor, the cavity havin q an avera q e diameter of about 1 u m to 1 mm; and forming nanopores in the graphene structure, wherein the nanopores pass through an outer surface and an inner surface of the graphene structure[[,]] and are connected with the cavity. Currently amended
The method of claim 1, wherein the forming of the nanopores includes: forming a mixture by adding an activating agent to the graphene structure; and heat treating the mixture. Original
The method of claim 1, wherein the forming of the nanopores includes providing a reaction gas on the graphene structure. Original
The method of claim 1, wherein the graphene structure includes a plurality of graphenes stacked. Original
The method of claim 1, wherein + the nanopores have an average diameter of about 0.1 nm to 50 nm. Currently amended
The method of claims 1, wherein forming the carbohydrate and the gas generator at a temperature
The method of claims 1, wherein the graphene 1800 m 2/g to 3000 m 2/g. New graphene precursor is performed by heating the of about 250 0C to 300 C. New structure has a specific surface area of about
An energy storage device comprising: a first electrode structure including a first current collector and a first graphene structure disposed on the first current collector, in which the first graphene structure has a first cavity therein, the first cavity having an average diameter of about 1 u m to 1 mm, and first nanopores extending through an outer surface and an inner surface of the first graphene structure to be connected with the first cavity; a second electrode structure spaced apart from the first electrode structure and including a second current collector and a second graphene structure disposed on the second current collector, wherein the second graphene structure has a second cavity therein, the second cavity having an average diameter of about 1 u m to 1 mm, and second nanopores extending through an outer surface and an inner surface of the second graphene structure to be connected with the second cavity; an electrolyte interposed between the first electrode structure and the second electrode structure; and a separation film in the electrolyte, wherein the electrolyte is provided in the first cavity, the first nanopores, the second cavity, and the second nanopores. Currently amended
The energy storage device of claim 11, wherein the electrolyte physically contacts the inner surface and the outer surface of the first graphene structure, and the inner surface and the outer surface of the second graphene structure. Original
1 3. The energy storage device of claim 11, wherein the first graphene structure is electrically connected with the first current collector. Original
Layer stacks claimed or described, ordered top of device to substrate.
energy storage device (supercapacitor)
Materials described outside the worked examples.
carbohydrate
gas generator
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Surface Area | 1800–3000 | three-dimensional graphene structure |
Thickness | 0.1–50 nm |
three-dimensional graphene structure
activating agent
potassium hydroxide
KOH
sodium hydroxide
NaOH
phosphoric acid
H₃PO₄
zinc chloride
ZnCl₂
reaction gas
carbon dioxide
CO₂
electrolyte
ammonium chloride
NH₄Cl
ammonium carbonate
(NH₄)2CO₃
melamine
C₃H₆N₆
graphene precursor
| — |
Temperature | 250–300 °C | — |
Temperature | 800–1400 °C | — |
Temperature | 600–1000 °C | — |
Temperature | ≤ 800 °C | — |
Temperature | ≤ 600 °C | — |
Temperature | ≥ 600 °C | — |
three-dimensional graphene structure
activating agent
potassium hydroxide
KOH
sodium hydroxide
NaOH
phosphoric acid
H₃PO₄
zinc chloride
ZnCl₂
reaction gas
carbon dioxide
CO₂
electrolyte
ammonium chloride
NH₄Cl
ammonium carbonate
(NH₄)2CO₃
melamine
C₃H₆N₆
graphene precursor
| — |
Temperature | 250–300 °C | — |
Temperature | 800–1400 °C | — |
Temperature | 600–1000 °C | — |
Temperature | ≤ 800 °C | — |
Temperature | ≤ 600 °C | — |
Temperature | ≥ 600 °C | — |
three-dimensional graphene structure
activating agent
potassium hydroxide
KOH
sodium hydroxide
NaOH
phosphoric acid
H₃PO₄
zinc chloride
ZnCl₂
reaction gas
carbon dioxide
CO₂
electrolyte
ammonium chloride
NH₄Cl
ammonium carbonate
(NH₄)2CO₃
melamine
C₃H₆N₆
graphene precursor
| — |
Temperature | 250–300 °C | — |
Temperature | 800–1400 °C | — |
Temperature | 600–1000 °C | — |
Temperature | ≤ 800 °C | — |
Temperature | ≤ 600 °C | — |
Temperature | ≥ 600 °C | — |
three-dimensional graphene structure
activating agent
potassium hydroxide
KOH
sodium hydroxide
NaOH
phosphoric acid
H₃PO₄
zinc chloride
ZnCl₂
reaction gas
carbon dioxide
CO₂
electrolyte
ammonium chloride
NH₄Cl
ammonium carbonate
(NH₄)2CO₃
melamine
C₃H₆N₆
graphene precursor
| — |
Temperature | 250–300 °C | — |
Temperature | 800–1400 °C | — |
Temperature | 600–1000 °C | — |
Temperature | ≤ 800 °C | — |
Temperature | ≤ 600 °C | — |
Temperature | ≥ 600 °C | — |