Patent
US 10,930,441Nitrogen-Doping Porous Graphene Material in Supercapacitor and Production Method Thereof
Chien-Liang Chang
US
Copyright © 2026 Matter42. All rights reserved.
Patent details
Patent
US 10,930,441Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an explosion diagram of a coin cell according to an embodiment of the present invention. [0013]
FIG. 2 illustrates proportions of carbon, oxygen, and nitrogen of graphene and Nitrogen-doping porous graphene. [0014]
FIG. 3 illustrates surfaces of (a) graphene (b) Nitrogen- doping porous graphene. [0015]
FIG. 4 illustrates capacitances of activated carbon electrodes with graphene and capacitances of activated carbon electrodes with nitrogen-doping porous …
FIG. 5 illustrates a life cycle of activated carbon electrodes with graphene and a life cycle of activated carbon electrodes with nitrogen-doping porous …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
: A supercapacitor, comprising: a working electrode formed with a first activated material with nitrogen-doping porous graphene; a counter electrode formed with a second activated material with nitrogen-doping porous graphene; and a separator disposed between the working electrode and the counter electrode; wherein the working electrode, the counter electrode and the separator are soaked in an organic electrolyte. Withdrawn
: The supercapacitor of claim 1, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Withdrawn
: The supercapacitor of claim 1, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quaternary phosphonium salt (R 4 P+), and aromatic imidazolium salt (EMI). Withdrawn
: The supercapacitor of claim 1, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N B, and tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Withdrawn
: The supercapacitor of claim 1, wherein the counter electrode comprises a first conductive substrate, the first activated material is deposed on the first conductive substrate; the working electrode comprises a second conductive substrate, the second activated material is deposed on the second conductive substrate. Withdrawn
: The supercapacitor of claim 1, wherein there are at least 3 atomic percentage of Nitrogen-doping graphene on a surface of the first or second activated material with nitrogen-doping porous graphene. Withdrawn
: A production method of supercapacitor, comprising: making an activated material with nitrogen-doping porous graphene; deposing the activated material on a conductive substrate to form a working electrode and a counter electrode; adsorbing organic electrolyte on surfaces of the working electrode and the counter electrode; and performing electrical activation to the working electrode which adsorbs the organic electrolyte. Currently amended
: The production method of claim 7, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Original
: The production method of claim 7, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quate rn ary phosphonium salt (R 4 P +), aromatic imidazolium salt (EMI). Original
: The production method of claim 7, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N W, tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Original
: The production method of claim 7, wherein the activated material is applied to the conductive substrate by a scraper to be deposed on the conductive substrate. Original
: The production method of claim 76, wherein making an activated material comprising nitrogen-doping porous graphene comprises: placing graphite oxide (GO) into a furnace and injecting a nitric oxide gas with 50 c.c./min gas flow for one hour; and increasing a temperature to 900 Celsius degrees with a rate of 40 Celsius degrees/min, after maintaining 900 ° C for 1 hour, naturally cooling down to room temperature to form the activated material. Currently amended
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Graphite oxide (GO) is placed into a furnace, nitrous oxides injected at 50 c.c./min for 1 hour, then temperature is raised to 900°C at 40°C/min, held for 1 hour, and naturally cooled to room temperature to form nitrogen-doping porous graphene.
7 materials2 process steps
Activated carbon, nitrogen-doping porous graphene, conductive black carbon (super P), thickener (CMC), and adhesive (SBR) are mixed in weight ratio 89.5:1.5:5:1.5:2.5 with deionized water to form a slurry. The slurry is applied to an aluminum substrate with a 50 μm scraper at 300 rpm, then baked at 90°C for 3 hours in a vacuum oven. Electrodes (area 1.33 cm²) are assembled in a glove box as a CR₂₀₃₂ coin cell with a cellulose separator (Nippon Kodoshi Corporation) and 1M TEABF₄/PC organic electrolyte. Electrical activation is performed at 1 A/g current density within a 2.7 V potential window for 3 cycles.
Layer stacks claimed or described, ordered top of device to substrate.
coin cell supercapacitor (CR₂₀₃₂)
Materials described outside the worked examples.
organic electrolyte solvent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific capacitance | 122 F/g | nitrogen-doping porous grapheneactivated carbon |
Related documents with shared materials, methods, properties, or citations.
Patent details
Patent
US 10,930,441Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an explosion diagram of a coin cell according to an embodiment of the present invention. [0013]
FIG. 2 illustrates proportions of carbon, oxygen, and nitrogen of graphene and Nitrogen-doping porous graphene. [0014]
FIG. 3 illustrates surfaces of (a) graphene (b) Nitrogen- doping porous graphene. [0015]
FIG. 4 illustrates capacitances of activated carbon electrodes with graphene and capacitances of activated carbon electrodes with nitrogen-doping porous …
FIG. 5 illustrates a life cycle of activated carbon electrodes with graphene and a life cycle of activated carbon electrodes with nitrogen-doping porous …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
: A supercapacitor, comprising: a working electrode formed with a first activated material with nitrogen-doping porous graphene; a counter electrode formed with a second activated material with nitrogen-doping porous graphene; and a separator disposed between the working electrode and the counter electrode; wherein the working electrode, the counter electrode and the separator are soaked in an organic electrolyte. Withdrawn
: The supercapacitor of claim 1, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Withdrawn
: The supercapacitor of claim 1, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quaternary phosphonium salt (R 4 P+), and aromatic imidazolium salt (EMI). Withdrawn
: The supercapacitor of claim 1, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N B, and tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Withdrawn
: The supercapacitor of claim 1, wherein the counter electrode comprises a first conductive substrate, the first activated material is deposed on the first conductive substrate; the working electrode comprises a second conductive substrate, the second activated material is deposed on the second conductive substrate. Withdrawn
: The supercapacitor of claim 1, wherein there are at least 3 atomic percentage of Nitrogen-doping graphene on a surface of the first or second activated material with nitrogen-doping porous graphene. Withdrawn
: A production method of supercapacitor, comprising: making an activated material with nitrogen-doping porous graphene; deposing the activated material on a conductive substrate to form a working electrode and a counter electrode; adsorbing organic electrolyte on surfaces of the working electrode and the counter electrode; and performing electrical activation to the working electrode which adsorbs the organic electrolyte. Currently amended
: The production method of claim 7, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Original
: The production method of claim 7, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quate rn ary phosphonium salt (R 4 P +), aromatic imidazolium salt (EMI). Original
: The production method of claim 7, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N W, tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Original
: The production method of claim 7, wherein the activated material is applied to the conductive substrate by a scraper to be deposed on the conductive substrate. Original
: The production method of claim 76, wherein making an activated material comprising nitrogen-doping porous graphene comprises: placing graphite oxide (GO) into a furnace and injecting a nitric oxide gas with 50 c.c./min gas flow for one hour; and increasing a temperature to 900 Celsius degrees with a rate of 40 Celsius degrees/min, after maintaining 900 ° C for 1 hour, naturally cooling down to room temperature to form the activated material. Currently amended
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Graphite oxide (GO) is placed into a furnace, nitrous oxides injected at 50 c.c./min for 1 hour, then temperature is raised to 900°C at 40°C/min, held for 1 hour, and naturally cooled to room temperature to form nitrogen-doping porous graphene.
7 materials2 process steps
Activated carbon, nitrogen-doping porous graphene, conductive black carbon (super P), thickener (CMC), and adhesive (SBR) are mixed in weight ratio 89.5:1.5:5:1.5:2.5 with deionized water to form a slurry. The slurry is applied to an aluminum substrate with a 50 μm scraper at 300 rpm, then baked at 90°C for 3 hours in a vacuum oven. Electrodes (area 1.33 cm²) are assembled in a glove box as a CR₂₀₃₂ coin cell with a cellulose separator (Nippon Kodoshi Corporation) and 1M TEABF₄/PC organic electrolyte. Electrical activation is performed at 1 A/g current density within a 2.7 V potential window for 3 cycles.
Layer stacks claimed or described, ordered top of device to substrate.
coin cell supercapacitor (CR₂₀₃₂)
Materials described outside the worked examples.
organic electrolyte solvent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific capacitance | 122 F/g | nitrogen-doping porous grapheneactivated carbon |
Related documents with shared materials, methods, properties, or citations.
Patent details
Patent
US 10,930,441Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an explosion diagram of a coin cell according to an embodiment of the present invention. [0013]
FIG. 2 illustrates proportions of carbon, oxygen, and nitrogen of graphene and Nitrogen-doping porous graphene. [0014]
FIG. 3 illustrates surfaces of (a) graphene (b) Nitrogen- doping porous graphene. [0015]
FIG. 4 illustrates capacitances of activated carbon electrodes with graphene and capacitances of activated carbon electrodes with nitrogen-doping porous …
FIG. 5 illustrates a life cycle of activated carbon electrodes with graphene and a life cycle of activated carbon electrodes with nitrogen-doping porous …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
: A supercapacitor, comprising: a working electrode formed with a first activated material with nitrogen-doping porous graphene; a counter electrode formed with a second activated material with nitrogen-doping porous graphene; and a separator disposed between the working electrode and the counter electrode; wherein the working electrode, the counter electrode and the separator are soaked in an organic electrolyte. Withdrawn
: The supercapacitor of claim 1, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Withdrawn
: The supercapacitor of claim 1, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quaternary phosphonium salt (R 4 P+), and aromatic imidazolium salt (EMI). Withdrawn
: The supercapacitor of claim 1, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N B, and tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Withdrawn
: The supercapacitor of claim 1, wherein the counter electrode comprises a first conductive substrate, the first activated material is deposed on the first conductive substrate; the working electrode comprises a second conductive substrate, the second activated material is deposed on the second conductive substrate. Withdrawn
: The supercapacitor of claim 1, wherein there are at least 3 atomic percentage of Nitrogen-doping graphene on a surface of the first or second activated material with nitrogen-doping porous graphene. Withdrawn
: A production method of supercapacitor, comprising: making an activated material with nitrogen-doping porous graphene; deposing the activated material on a conductive substrate to form a working electrode and a counter electrode; adsorbing organic electrolyte on surfaces of the working electrode and the counter electrode; and performing electrical activation to the working electrode which adsorbs the organic electrolyte. Currently amended
: The production method of claim 7, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Original
: The production method of claim 7, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quate rn ary phosphonium salt (R 4 P +), aromatic imidazolium salt (EMI). Original
: The production method of claim 7, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N W, tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Original
: The production method of claim 7, wherein the activated material is applied to the conductive substrate by a scraper to be deposed on the conductive substrate. Original
: The production method of claim 76, wherein making an activated material comprising nitrogen-doping porous graphene comprises: placing graphite oxide (GO) into a furnace and injecting a nitric oxide gas with 50 c.c./min gas flow for one hour; and increasing a temperature to 900 Celsius degrees with a rate of 40 Celsius degrees/min, after maintaining 900 ° C for 1 hour, naturally cooling down to room temperature to form the activated material. Currently amended
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Graphite oxide (GO) is placed into a furnace, nitrous oxides injected at 50 c.c./min for 1 hour, then temperature is raised to 900°C at 40°C/min, held for 1 hour, and naturally cooled to room temperature to form nitrogen-doping porous graphene.
7 materials2 process steps
Activated carbon, nitrogen-doping porous graphene, conductive black carbon (super P), thickener (CMC), and adhesive (SBR) are mixed in weight ratio 89.5:1.5:5:1.5:2.5 with deionized water to form a slurry. The slurry is applied to an aluminum substrate with a 50 μm scraper at 300 rpm, then baked at 90°C for 3 hours in a vacuum oven. Electrodes (area 1.33 cm²) are assembled in a glove box as a CR₂₀₃₂ coin cell with a cellulose separator (Nippon Kodoshi Corporation) and 1M TEABF₄/PC organic electrolyte. Electrical activation is performed at 1 A/g current density within a 2.7 V potential window for 3 cycles.
Layer stacks claimed or described, ordered top of device to substrate.
coin cell supercapacitor (CR₂₀₃₂)
Materials described outside the worked examples.
organic electrolyte solvent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific capacitance | 122 F/g | nitrogen-doping porous grapheneactivated carbon |
Related documents with shared materials, methods, properties, or citations.
Patent details
Patent
US 10,930,441Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is an explosion diagram of a coin cell according to an embodiment of the present invention. [0013]
FIG. 2 illustrates proportions of carbon, oxygen, and nitrogen of graphene and Nitrogen-doping porous graphene. [0014]
FIG. 3 illustrates surfaces of (a) graphene (b) Nitrogen- doping porous graphene. [0015]
FIG. 4 illustrates capacitances of activated carbon electrodes with graphene and capacitances of activated carbon electrodes with nitrogen-doping porous …
FIG. 5 illustrates a life cycle of activated carbon electrodes with graphene and a life cycle of activated carbon electrodes with nitrogen-doping porous …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
: A supercapacitor, comprising: a working electrode formed with a first activated material with nitrogen-doping porous graphene; a counter electrode formed with a second activated material with nitrogen-doping porous graphene; and a separator disposed between the working electrode and the counter electrode; wherein the working electrode, the counter electrode and the separator are soaked in an organic electrolyte. Withdrawn
: The supercapacitor of claim 1, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Withdrawn
: The supercapacitor of claim 1, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quaternary phosphonium salt (R 4 P+), and aromatic imidazolium salt (EMI). Withdrawn
: The supercapacitor of claim 1, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N B, and tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Withdrawn
: The supercapacitor of claim 1, wherein the counter electrode comprises a first conductive substrate, the first activated material is deposed on the first conductive substrate; the working electrode comprises a second conductive substrate, the second activated material is deposed on the second conductive substrate. Withdrawn
: The supercapacitor of claim 1, wherein there are at least 3 atomic percentage of Nitrogen-doping graphene on a surface of the first or second activated material with nitrogen-doping porous graphene. Withdrawn
: A production method of supercapacitor, comprising: making an activated material with nitrogen-doping porous graphene; deposing the activated material on a conductive substrate to form a working electrode and a counter electrode; adsorbing organic electrolyte on surfaces of the working electrode and the counter electrode; and performing electrical activation to the working electrode which adsorbs the organic electrolyte. Currently amended
: The production method of claim 7, wherein an organic solvent for the organic electrolyte includes at least one of propylene carbonate (PC), acetonitrile (AN), N,N-dimethylformamide (NMP), Dimethylacetamide (DMA), tetrahydrofuran (TH F). Original
: The production method of claim 7, wherein cations of the organic electrolyte include at least one of quaternary ammonium salt (R 4 N +), Lithium salts (Li+), quate rn ary phosphonium salt (R 4 P +), aromatic imidazolium salt (EMI). Original
: The production method of claim 7, wherein anions of the organic electrolyte comprises at least one of C 0 4-, BF 4, PF 4, AsF 6, (CF 3 SO 2) 2 N W, tetraethyl ammonium tetrafluorob orate (TEMABF 4, TMAB O B, TMADF O B). Original
: The production method of claim 7, wherein the activated material is applied to the conductive substrate by a scraper to be deposed on the conductive substrate. Original
: The production method of claim 76, wherein making an activated material comprising nitrogen-doping porous graphene comprises: placing graphite oxide (GO) into a furnace and injecting a nitric oxide gas with 50 c.c./min gas flow for one hour; and increasing a temperature to 900 Celsius degrees with a rate of 40 Celsius degrees/min, after maintaining 900 ° C for 1 hour, naturally cooling down to room temperature to form the activated material. Currently amended
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Graphite oxide (GO) is placed into a furnace, nitrous oxides injected at 50 c.c./min for 1 hour, then temperature is raised to 900°C at 40°C/min, held for 1 hour, and naturally cooled to room temperature to form nitrogen-doping porous graphene.
7 materials2 process steps
Activated carbon, nitrogen-doping porous graphene, conductive black carbon (super P), thickener (CMC), and adhesive (SBR) are mixed in weight ratio 89.5:1.5:5:1.5:2.5 with deionized water to form a slurry. The slurry is applied to an aluminum substrate with a 50 μm scraper at 300 rpm, then baked at 90°C for 3 hours in a vacuum oven. Electrodes (area 1.33 cm²) are assembled in a glove box as a CR₂₀₃₂ coin cell with a cellulose separator (Nippon Kodoshi Corporation) and 1M TEABF₄/PC organic electrolyte. Electrical activation is performed at 1 A/g current density within a 2.7 V potential window for 3 cycles.
Layer stacks claimed or described, ordered top of device to substrate.
coin cell supercapacitor (CR₂₀₃₂)
Materials described outside the worked examples.
organic electrolyte solvent
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific capacitance | 122 F/g | nitrogen-doping porous grapheneactivated carbon |
Related documents with shared materials, methods, properties, or citations.
power density |
| 31 kW/kg |
nitrogen-doping porous grapheneactivated carbon |
energy density | 21 Wh/kg | nitrogen-doping porous grapheneactivated carbon |
minimum N atomic percentage on electrode surface | 3 at.% | nitrogen-doping porous graphene |
Voltage | 0–2.5 V | — |
power density |
| 31 kW/kg |
nitrogen-doping porous grapheneactivated carbon |
energy density | 21 Wh/kg | nitrogen-doping porous grapheneactivated carbon |
minimum N atomic percentage on electrode surface | 3 at.% | nitrogen-doping porous graphene |
Voltage | 0–2.5 V | — |
power density |
| 31 kW/kg |
nitrogen-doping porous grapheneactivated carbon |
energy density | 21 Wh/kg | nitrogen-doping porous grapheneactivated carbon |
minimum N atomic percentage on electrode surface | 3 at.% | nitrogen-doping porous graphene |
Voltage | 0–2.5 V | — |
power density |
| 31 kW/kg |
nitrogen-doping porous grapheneactivated carbon |
energy density | 21 Wh/kg | nitrogen-doping porous grapheneactivated carbon |
minimum N atomic percentage on electrode surface | 3 at.% | nitrogen-doping porous graphene |
Voltage | 0–2.5 V | — |