Patent
US 11,217,791SANDWICH-TYPE GRAPHENE COMPOSITE STRUCTURE FOR ANODE MATERIAL OF LITHIUM ION SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF
Yongmook KANG
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 11,217,791Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
FIG. 4 representing a composite ofsilicon and graphene which is not coated with carbon, no peak of reduced graphene oxide can be observed at 25 ° to 27 ° …
FIG. 7B illustrates the lifespan and charging/discharging efficiency of Si@C-rG O of the present disclosure. Referring to FI G 7B, it can be seen that a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The composite structure according to claim 1, wherein an additional silicon nanoparticle layer and graphene oxide sheet layer are alternately stacked on the second graphene oxide sheet layer. Previously presented
Canceled
Canceled
The composite structure according to claim 1, wherein the first graphene oxide sheet layer and the second graphene oxide sheet layer are bonded with the silicon nanoparticle layer using the hydrogen bonds. Previously presented
A method of manufacturing a sandwich-type graphene composite structure, comprising: preparing a buffer solution containing dopamine hydrochloride; forming polydopamine-coated silicon nanoparticles by forming a first solution by mixing silicon nanoparticles in the buffer solution; forming a sandwich-type graphene composite structure by alternately filtering a second solution containing graphene oxide sheets and the first solution containing the polydopamine-coated silicon nanoparticles; and forming carbon-coated silicon nanoparticles by thermally treating the sandwich-type graphene composite the carbon-coated silicon nanoparticles and the
The method of claim 6, wherein the silicon Withdrawn
The method of claim 6, wherein a concentration and a concentration of the second solution is 1
The method of claim 6, wherein the number of and second solutions is 2 to 4. Withdrawn structure, and inducing a chemical bond between graphene oxide sheets. Withdrawn nanoparticles have a size of 150 nm to 200 nm. of the first solution is 0.5 mg/mL to 2 mg/mL, mg/mL to 10 mg/mL. Withdrawn filtrations alternately performed on the first
Layer stacks claimed or described, ordered top of device to substrate.
sandwich-type graphene composite structure
Materials described outside the worked examples.
silicon nanoparticles
Si
graphene oxide sheets
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 150–200 nm | — |
Duration | 12–48 hours |
Patent
Atlas literature
Patent
US 11,217,791Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
FIG. 4 representing a composite ofsilicon and graphene which is not coated with carbon, no peak of reduced graphene oxide can be observed at 25 ° to 27 ° …
FIG. 7B illustrates the lifespan and charging/discharging efficiency of Si@C-rG O of the present disclosure. Referring to FI G 7B, it can be seen that a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The composite structure according to claim 1, wherein an additional silicon nanoparticle layer and graphene oxide sheet layer are alternately stacked on the second graphene oxide sheet layer. Previously presented
Canceled
Canceled
The composite structure according to claim 1, wherein the first graphene oxide sheet layer and the second graphene oxide sheet layer are bonded with the silicon nanoparticle layer using the hydrogen bonds. Previously presented
A method of manufacturing a sandwich-type graphene composite structure, comprising: preparing a buffer solution containing dopamine hydrochloride; forming polydopamine-coated silicon nanoparticles by forming a first solution by mixing silicon nanoparticles in the buffer solution; forming a sandwich-type graphene composite structure by alternately filtering a second solution containing graphene oxide sheets and the first solution containing the polydopamine-coated silicon nanoparticles; and forming carbon-coated silicon nanoparticles by thermally treating the sandwich-type graphene composite the carbon-coated silicon nanoparticles and the
The method of claim 6, wherein the silicon Withdrawn
The method of claim 6, wherein a concentration and a concentration of the second solution is 1
The method of claim 6, wherein the number of and second solutions is 2 to 4. Withdrawn structure, and inducing a chemical bond between graphene oxide sheets. Withdrawn nanoparticles have a size of 150 nm to 200 nm. of the first solution is 0.5 mg/mL to 2 mg/mL, mg/mL to 10 mg/mL. Withdrawn filtrations alternately performed on the first
Layer stacks claimed or described, ordered top of device to substrate.
sandwich-type graphene composite structure
Materials described outside the worked examples.
silicon nanoparticles
Si
graphene oxide sheets
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 150–200 nm | — |
Duration | 12–48 hours |
Patent
Atlas literature
Patent
US 11,217,791Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
FIG. 4 representing a composite ofsilicon and graphene which is not coated with carbon, no peak of reduced graphene oxide can be observed at 25 ° to 27 ° …
FIG. 7B illustrates the lifespan and charging/discharging efficiency of Si@C-rG O of the present disclosure. Referring to FI G 7B, it can be seen that a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The composite structure according to claim 1, wherein an additional silicon nanoparticle layer and graphene oxide sheet layer are alternately stacked on the second graphene oxide sheet layer. Previously presented
Canceled
Canceled
The composite structure according to claim 1, wherein the first graphene oxide sheet layer and the second graphene oxide sheet layer are bonded with the silicon nanoparticle layer using the hydrogen bonds. Previously presented
A method of manufacturing a sandwich-type graphene composite structure, comprising: preparing a buffer solution containing dopamine hydrochloride; forming polydopamine-coated silicon nanoparticles by forming a first solution by mixing silicon nanoparticles in the buffer solution; forming a sandwich-type graphene composite structure by alternately filtering a second solution containing graphene oxide sheets and the first solution containing the polydopamine-coated silicon nanoparticles; and forming carbon-coated silicon nanoparticles by thermally treating the sandwich-type graphene composite the carbon-coated silicon nanoparticles and the
The method of claim 6, wherein the silicon Withdrawn
The method of claim 6, wherein a concentration and a concentration of the second solution is 1
The method of claim 6, wherein the number of and second solutions is 2 to 4. Withdrawn structure, and inducing a chemical bond between graphene oxide sheets. Withdrawn nanoparticles have a size of 150 nm to 200 nm. of the first solution is 0.5 mg/mL to 2 mg/mL, mg/mL to 10 mg/mL. Withdrawn filtrations alternately performed on the first
Layer stacks claimed or described, ordered top of device to substrate.
sandwich-type graphene composite structure
Materials described outside the worked examples.
silicon nanoparticles
Si
graphene oxide sheets
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 150–200 nm | — |
Duration | 12–48 hours |
Patent
Atlas literature
Patent
US 11,217,791Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. In
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
FIG. 4 representing a composite ofsilicon and graphene which is not coated with carbon, no peak of reduced graphene oxide can be observed at 25 ° to 27 ° …
FIG. 7B illustrates the lifespan and charging/discharging efficiency of Si@C-rG O of the present disclosure. Referring to FI G 7B, it can be seen that a …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The composite structure according to claim 1, wherein an additional silicon nanoparticle layer and graphene oxide sheet layer are alternately stacked on the second graphene oxide sheet layer. Previously presented
Canceled
Canceled
The composite structure according to claim 1, wherein the first graphene oxide sheet layer and the second graphene oxide sheet layer are bonded with the silicon nanoparticle layer using the hydrogen bonds. Previously presented
A method of manufacturing a sandwich-type graphene composite structure, comprising: preparing a buffer solution containing dopamine hydrochloride; forming polydopamine-coated silicon nanoparticles by forming a first solution by mixing silicon nanoparticles in the buffer solution; forming a sandwich-type graphene composite structure by alternately filtering a second solution containing graphene oxide sheets and the first solution containing the polydopamine-coated silicon nanoparticles; and forming carbon-coated silicon nanoparticles by thermally treating the sandwich-type graphene composite the carbon-coated silicon nanoparticles and the
The method of claim 6, wherein the silicon Withdrawn
The method of claim 6, wherein a concentration and a concentration of the second solution is 1
The method of claim 6, wherein the number of and second solutions is 2 to 4. Withdrawn structure, and inducing a chemical bond between graphene oxide sheets. Withdrawn nanoparticles have a size of 150 nm to 200 nm. of the first solution is 0.5 mg/mL to 2 mg/mL, mg/mL to 10 mg/mL. Withdrawn filtrations alternately performed on the first
Layer stacks claimed or described, ordered top of device to substrate.
sandwich-type graphene composite structure
Materials described outside the worked examples.
silicon nanoparticles
Si
graphene oxide sheets
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 2(B) and 2(C), it can be confirmed that the carbon- coated silicon nanoparticles 200 are distributed on the first graphene oxide sheet layer 100. FI G. 3 …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 150–200 nm | — |
Duration | 12–48 hours |
polydopamine-coated silicon nanoparticles
carbon-coated silicon nanoparticles
dopamine hydrochloride
Tris-buffer
argon/hydrogen gas mixture
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
| — |
Duration | 1–4 hours | — |
polydopamine-coated silicon nanoparticles
carbon-coated silicon nanoparticles
dopamine hydrochloride
Tris-buffer
argon/hydrogen gas mixture
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
| — |
Duration | 1–4 hours | — |
polydopamine-coated silicon nanoparticles
carbon-coated silicon nanoparticles
dopamine hydrochloride
Tris-buffer
argon/hydrogen gas mixture
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
| — |
Duration | 1–4 hours | — |
polydopamine-coated silicon nanoparticles
carbon-coated silicon nanoparticles
dopamine hydrochloride
Tris-buffer
argon/hydrogen gas mixture
FIG. 3, infrared spectroscopy is performed to analyze a chemical bond in the sandwich-type graphene composite structure of the present disclosure. In infrared …
| — |
Duration | 1–4 hours | — |