Patent
US 9,722,254Graphene Application in Battery
Ramesh C. Bhardwaj
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,722,254Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 illustrates a perspective view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2A illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2B illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2C illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2D illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figures 3A to 3G illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 3H illustrates a perspective view of a battery manufacturing scena rio, according to an example embodiment.
Figures 4A to 4F illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 5A illustrates front and cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 5B illustrates cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 6 illustrates a method, according to an example embodiment.
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 of manufacturing a battery, the method comprising: forming a cathode layer proximate to a cathode current collector; forming an electrolyte layer proximate to the cathode layer; forming an anode layer proximate to the electrolyte layer; forming an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers; determining a stepped arrangement of the graphene monolayers; and patterning at least a portion of the plurality of graphene monolayers according to the stepped arrangement.
The method of claim 1, wherein the plurality of graphene monolayers is initially formed proximate to a substrate comprising copper foil.
The method of claim 1, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to a surface area to volume ratio at an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a process comprising electron beam lithography and etching.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a nanoimprint lithography process.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises selectively removing the portion of the plurality of graphene monolayers via a lithographic process.
The method of claim 1, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers. 3
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired curved shape of the plurality of graphene monolayers.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired contact resistance of the at least one cathode current collector layer or the at least one anode current collector layer.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired current density of the battery during at least one of a charge mode or a discharge mode.
The method of claim 1, wherein the battery comprises at least one of a lithium- ion battery or a lithium-polymer battery.
The method of claim 1, wherein the cathode layer comprises lithium cobalt oxide (LiC oO 2), wherein the anode layer comprises lithium metal (Li), and wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
A battery comprising: a cathode layer proximate to a cathode current collector layer; an electrolyte layer proximate to the cathode layer; an anode layer proximate to the electrolyte layer; and 4 an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers having a stepped arrangement, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers.
The battery of claim 15, wherein the battery comprises at least one of a lithium-ion battery or a lithium-polymer battery.
The battery of claim 15, wherein the cathode layer comprises lithium cobalt oxide (LiCo O 2).
The battery of claim 15, wherein the anode layer comprises lithium metal (Li).
The battery of claim 15, wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
canceled
Layer stacks claimed or described, ordered top of device to substrate.
thin film solid state battery with graphene current collector
Materials described outside the worked examples.
graphene monolayers
C
lithium cobalt oxide
LiCoO₂
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–30 µm | — |
Thickness | 200–1000 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,722,254Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 illustrates a perspective view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2A illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2B illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2C illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2D illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figures 3A to 3G illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 3H illustrates a perspective view of a battery manufacturing scena rio, according to an example embodiment.
Figures 4A to 4F illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 5A illustrates front and cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 5B illustrates cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 6 illustrates a method, according to an example embodiment.
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 of manufacturing a battery, the method comprising: forming a cathode layer proximate to a cathode current collector; forming an electrolyte layer proximate to the cathode layer; forming an anode layer proximate to the electrolyte layer; forming an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers; determining a stepped arrangement of the graphene monolayers; and patterning at least a portion of the plurality of graphene monolayers according to the stepped arrangement.
The method of claim 1, wherein the plurality of graphene monolayers is initially formed proximate to a substrate comprising copper foil.
The method of claim 1, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to a surface area to volume ratio at an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a process comprising electron beam lithography and etching.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a nanoimprint lithography process.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises selectively removing the portion of the plurality of graphene monolayers via a lithographic process.
The method of claim 1, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers. 3
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired curved shape of the plurality of graphene monolayers.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired contact resistance of the at least one cathode current collector layer or the at least one anode current collector layer.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired current density of the battery during at least one of a charge mode or a discharge mode.
The method of claim 1, wherein the battery comprises at least one of a lithium- ion battery or a lithium-polymer battery.
The method of claim 1, wherein the cathode layer comprises lithium cobalt oxide (LiC oO 2), wherein the anode layer comprises lithium metal (Li), and wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
A battery comprising: a cathode layer proximate to a cathode current collector layer; an electrolyte layer proximate to the cathode layer; an anode layer proximate to the electrolyte layer; and 4 an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers having a stepped arrangement, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers.
The battery of claim 15, wherein the battery comprises at least one of a lithium-ion battery or a lithium-polymer battery.
The battery of claim 15, wherein the cathode layer comprises lithium cobalt oxide (LiCo O 2).
The battery of claim 15, wherein the anode layer comprises lithium metal (Li).
The battery of claim 15, wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
canceled
Layer stacks claimed or described, ordered top of device to substrate.
thin film solid state battery with graphene current collector
Materials described outside the worked examples.
graphene monolayers
C
lithium cobalt oxide
LiCoO₂
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–30 µm | — |
Thickness | 200–1000 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,722,254Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 illustrates a perspective view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2A illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2B illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2C illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2D illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figures 3A to 3G illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 3H illustrates a perspective view of a battery manufacturing scena rio, according to an example embodiment.
Figures 4A to 4F illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 5A illustrates front and cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 5B illustrates cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 6 illustrates a method, according to an example embodiment.
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 of manufacturing a battery, the method comprising: forming a cathode layer proximate to a cathode current collector; forming an electrolyte layer proximate to the cathode layer; forming an anode layer proximate to the electrolyte layer; forming an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers; determining a stepped arrangement of the graphene monolayers; and patterning at least a portion of the plurality of graphene monolayers according to the stepped arrangement.
The method of claim 1, wherein the plurality of graphene monolayers is initially formed proximate to a substrate comprising copper foil.
The method of claim 1, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to a surface area to volume ratio at an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a process comprising electron beam lithography and etching.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a nanoimprint lithography process.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises selectively removing the portion of the plurality of graphene monolayers via a lithographic process.
The method of claim 1, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers. 3
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired curved shape of the plurality of graphene monolayers.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired contact resistance of the at least one cathode current collector layer or the at least one anode current collector layer.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired current density of the battery during at least one of a charge mode or a discharge mode.
The method of claim 1, wherein the battery comprises at least one of a lithium- ion battery or a lithium-polymer battery.
The method of claim 1, wherein the cathode layer comprises lithium cobalt oxide (LiC oO 2), wherein the anode layer comprises lithium metal (Li), and wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
A battery comprising: a cathode layer proximate to a cathode current collector layer; an electrolyte layer proximate to the cathode layer; an anode layer proximate to the electrolyte layer; and 4 an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers having a stepped arrangement, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers.
The battery of claim 15, wherein the battery comprises at least one of a lithium-ion battery or a lithium-polymer battery.
The battery of claim 15, wherein the cathode layer comprises lithium cobalt oxide (LiCo O 2).
The battery of claim 15, wherein the anode layer comprises lithium metal (Li).
The battery of claim 15, wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
canceled
Layer stacks claimed or described, ordered top of device to substrate.
thin film solid state battery with graphene current collector
Materials described outside the worked examples.
graphene monolayers
C
lithium cobalt oxide
LiCoO₂
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–30 µm | — |
Thickness | 200–1000 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,722,254Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 illustrates a perspective view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2A illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2B illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2C illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figure 2D illustrates a cross-sectional view of a plurality of graphene monolayers, according to an example embodiment.
Figures 3A to 3G illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 3H illustrates a perspective view of a battery manufacturing scena rio, according to an example embodiment.
Figures 4A to 4F illustrate cross-sectional views of a battery manufacturing scenario, according to an example embodiment.
Figure 5A illustrates front and cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 5B illustrates cross-sectional views of a mobile computing device, according to an example embodiment.
Figure 6 illustrates a method, according to an example embodiment.
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 of manufacturing a battery, the method comprising: forming a cathode layer proximate to a cathode current collector; forming an electrolyte layer proximate to the cathode layer; forming an anode layer proximate to the electrolyte layer; forming an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers; determining a stepped arrangement of the graphene monolayers; and patterning at least a portion of the plurality of graphene monolayers according to the stepped arrangement.
The method of claim 1, wherein the plurality of graphene monolayers is initially formed proximate to a substrate comprising copper foil.
The method of claim 1, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to a surface area to volume ratio at an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a process comprising electron beam lithography and etching.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises forming the stepped arrangement via a nanoimprint lithography process.
The method of claim 1, wherein patterning the portion of the plurality of graphene monolayers comprises selectively removing the portion of the plurality of graphene monolayers via a lithographic process.
The method of claim 1, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers. 3
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired curved shape of the plurality of graphene monolayers.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired contact resistance of the at least one cathode current collector layer or the at least one anode current collector layer.
The method of claim 1, wherein determining the stepped arrangement of the graphene monolayers comprises determining a desired current density of the battery during at least one of a charge mode or a discharge mode.
The method of claim 1, wherein the battery comprises at least one of a lithium- ion battery or a lithium-polymer battery.
The method of claim 1, wherein the cathode layer comprises lithium cobalt oxide (LiC oO 2), wherein the anode layer comprises lithium metal (Li), and wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
A battery comprising: a cathode layer proximate to a cathode current collector layer; an electrolyte layer proximate to the cathode layer; an anode layer proximate to the electrolyte layer; and 4 an anode current collector layer proximate to the anode layer, wherein at least one of the cathode current collector layer or the anode current collector layer comprises a plurality of graphene monolayers having a stepped arrangement, wherein the stepped arrangement provides a higher surface area to volume ratio at an interface between a patterned portion of the plurality of graphene monolayers and at least one of the cathode layer or the anode layer compared to an interface between an unpatterned portion of the plurality of graphene monolayers and the at least one of the cathode layer or the anode layer, wherein at least one surface of the battery is curved with respect to an axis substantially perpendicular to the plurality of graphene monolayers.
The battery of claim 15, wherein the battery comprises at least one of a lithium-ion battery or a lithium-polymer battery.
The battery of claim 15, wherein the cathode layer comprises lithium cobalt oxide (LiCo O 2).
The battery of claim 15, wherein the anode layer comprises lithium metal (Li).
The battery of claim 15, wherein the electrolyte layer comprises lithium phosphorous oxynitride (LiPON).
canceled
Layer stacks claimed or described, ordered top of device to substrate.
thin film solid state battery with graphene current collector
Materials described outside the worked examples.
graphene monolayers
C
lithium cobalt oxide
LiCoO₂
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 10–30 µm | — |
Thickness | 200–1000 nm |
Related documents with shared materials, methods, properties, or citations.
lithium metal
Li
lithium phosphorous oxynitride
LiPON
copper foil
Cu
lithium manganese oxide
LMO
lithium iron phosphate
LFP
lithium nickel manganese cobalt oxide
NMC
| — |
Vertically Oriented Graphene-Supported Anode
lithium metal
Li
lithium phosphorous oxynitride
LiPON
copper foil
Cu
lithium manganese oxide
LMO
lithium iron phosphate
LFP
lithium nickel manganese cobalt oxide
NMC
| — |
Vertically Oriented Graphene-Supported Anode
lithium metal
Li
lithium phosphorous oxynitride
LiPON
copper foil
Cu
lithium manganese oxide
LMO
lithium iron phosphate
LFP
lithium nickel manganese cobalt oxide
NMC
| — |
Vertically Oriented Graphene-Supported Anode
lithium metal
Li
lithium phosphorous oxynitride
LiPON
copper foil
Cu
lithium manganese oxide
LMO
lithium iron phosphate
LFP
lithium nickel manganese cobalt oxide
NMC
| — |
Vertically Oriented Graphene-Supported Anode