Patent
Graphene-Enabled Niobium-Based Composite Metal Oxide as an Anode Active Material for a Lithium-Ion Battery
Aruna Zhamu, Bor Z. Jang
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(A) Schematic of a graphene-enhanced hybrid particulate according to a preferred embodiment of the present invention; and
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
FIG. 3 A schematic drawing illustrating that the graphene sheets disposed on the exterior surface of the particulates naturally form a 3-D network of …
FIG. 4 The specific capacity of 3 cells: one containing an anode of graphene-enhanced hybrid particulates of TiNb 2 0 7 particles/graphene, a cell containing an …
FIG. 5 shows the specific capacity of 2 lithium cells: a cell containing an anode of graphene-enhanced particulates of TiMoNb O 7 particles/graphene and a cell …
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A hybrid particulate for use as a lithium-ion battery anode active material, wherein said hybrid particulate is formed of at least one graphene sheet, a first carbon material, and at least one primary particle of a niobium-containing composite metal oxide, wherein the at least one graphene sheet comprises at least one exterior graphene sheet, wherein the first carbon material is coated on the at least one primary particle, and the at least one graphene sheet and the at least one primary particle are mutually bonded or agglomerated into said hybrid particulate containing the at least one exterior graphene sheet embracing said at least one primary particle, wherein said niobium-containing composite metal oxide is nucleated from said at least one graphene sheet, wherein said niobium-containing composite metal oxide is selected from the group consisting of M i(l) 1-.. < <. SVG 15822882.08-16-2021.KSF₀UHKKLDFLYX9.CLM.1.svg 0.16 5.87 Black and white M x TiNb 2 O 7 (0 < x < 0.5, and M = B- Na, Mg, S, P, K, Ca, Mo, W, Cr, Mn, Co, or Ni), Ti 2 Nb io-vTavOw (0 < v < 2, 27 < w < 29), P-doped versions thereof, B-doped versions thereof, carbon-coated versions thereof, and combinations thereof. Currently amended
The hybrid particulate of claim 1 wherein said at least one graphene sheet further contains at least one interior graphene sheet in physical contact with said at least one primary particle and said at least one exterior graphene sheet. Previously presented
The hybrid particulate of claim 1 wherein the at least one graphene sheet is in the amount of from 0.1 % to 10 % by weight of the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate has the electrical conductivity greater than 1 0- 2 S/cm. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate is substantially spherical in shape. Original
The hybrid particulate of claim 1 wherein said at least one graphene sheet comprises single-layer graphene or few-layer graphene, wherein the few-layer graphene is a graphene platelet formed of less than 10 graphene planes. Previously presented
The hybrid particulate of claim 1 wherein said at least one graphene sheet is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, nitrogenated graphene, hydrogenated graphene, doped graphene, functionalized graphene, or combinations thereof. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 1 pm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, further comprising a second carbon material in electronic contact with said at least one primary particle and said at least one graphene sheet. Previously presented
The hybrid particulate of claim 1, wherein said first carbon material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, carbon black, acetylene black, activated carbon, fine expanded graphite particle, artificial graphite particle, natural graphite particle, or a combination thereof. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1, wherein said hybrid particulates are packed together with said at least one graphene sheet forming a three-dimensional electron-conducting pathway. Previously presented
A process for producing the hybrid particulate of claim 1, said process comprising: (a) dispersing said at least one graphene sheet and particles of an anode active material in a liquid medium to form a suspension, wherein said anode active material contains said at least one primary particle; and (b) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form said hybrid particulate. Withdrawn
A process for producing the hybrid particulate of claim 1, said process comprising: (A) dispersing said at least one graphene sheet and a precursor to said niobium-containing composite metal oxide in a liquid medium to form a suspension; (B) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form a precursor particulate containing said at least one graphene sheet s and particles or coating of said precursor; and (C) thermally or chemically converting said precursor particulate to form said hybrid particulate. Withdrawn
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has a size from 1 nm to 10 p m, wherein the first carbon material is in an amount of from 0.1% to 3% by weight based on the total weight of the first carbon material and the niobium-containing composite metal oxide combined, and wherein said hybrid particulate has an electrical conductivity no less than 10- 4 S/cm and said at least one graphene sheet is in an amount of from 0.01% to 30% by weight based on the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
hybrid particulate (graphene-enabled niobium-based composite metal oxide)
lithium-ion battery anode
Materials described outside the worked examples.
graphene sheet
niobium-containing composite metal oxide
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrical conductivity of hybrid particulate (claimed lower bound) | ≥ 0.0001 S/cm | — |
electrical conductivity of hybrid particulate (claim 5, greater than 10^-2 S/cm) | ≥ 0.01 S/cm | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(A) Schematic of a graphene-enhanced hybrid particulate according to a preferred embodiment of the present invention; and
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
FIG. 3 A schematic drawing illustrating that the graphene sheets disposed on the exterior surface of the particulates naturally form a 3-D network of …
FIG. 4 The specific capacity of 3 cells: one containing an anode of graphene-enhanced hybrid particulates of TiNb 2 0 7 particles/graphene, a cell containing an …
FIG. 5 shows the specific capacity of 2 lithium cells: a cell containing an anode of graphene-enhanced particulates of TiMoNb O 7 particles/graphene and a cell …
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A hybrid particulate for use as a lithium-ion battery anode active material, wherein said hybrid particulate is formed of at least one graphene sheet, a first carbon material, and at least one primary particle of a niobium-containing composite metal oxide, wherein the at least one graphene sheet comprises at least one exterior graphene sheet, wherein the first carbon material is coated on the at least one primary particle, and the at least one graphene sheet and the at least one primary particle are mutually bonded or agglomerated into said hybrid particulate containing the at least one exterior graphene sheet embracing said at least one primary particle, wherein said niobium-containing composite metal oxide is nucleated from said at least one graphene sheet, wherein said niobium-containing composite metal oxide is selected from the group consisting of M i(l) 1-.. < <. SVG 15822882.08-16-2021.KSF₀UHKKLDFLYX9.CLM.1.svg 0.16 5.87 Black and white M x TiNb 2 O 7 (0 < x < 0.5, and M = B- Na, Mg, S, P, K, Ca, Mo, W, Cr, Mn, Co, or Ni), Ti 2 Nb io-vTavOw (0 < v < 2, 27 < w < 29), P-doped versions thereof, B-doped versions thereof, carbon-coated versions thereof, and combinations thereof. Currently amended
The hybrid particulate of claim 1 wherein said at least one graphene sheet further contains at least one interior graphene sheet in physical contact with said at least one primary particle and said at least one exterior graphene sheet. Previously presented
The hybrid particulate of claim 1 wherein the at least one graphene sheet is in the amount of from 0.1 % to 10 % by weight of the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate has the electrical conductivity greater than 1 0- 2 S/cm. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate is substantially spherical in shape. Original
The hybrid particulate of claim 1 wherein said at least one graphene sheet comprises single-layer graphene or few-layer graphene, wherein the few-layer graphene is a graphene platelet formed of less than 10 graphene planes. Previously presented
The hybrid particulate of claim 1 wherein said at least one graphene sheet is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, nitrogenated graphene, hydrogenated graphene, doped graphene, functionalized graphene, or combinations thereof. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 1 pm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, further comprising a second carbon material in electronic contact with said at least one primary particle and said at least one graphene sheet. Previously presented
The hybrid particulate of claim 1, wherein said first carbon material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, carbon black, acetylene black, activated carbon, fine expanded graphite particle, artificial graphite particle, natural graphite particle, or a combination thereof. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1, wherein said hybrid particulates are packed together with said at least one graphene sheet forming a three-dimensional electron-conducting pathway. Previously presented
A process for producing the hybrid particulate of claim 1, said process comprising: (a) dispersing said at least one graphene sheet and particles of an anode active material in a liquid medium to form a suspension, wherein said anode active material contains said at least one primary particle; and (b) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form said hybrid particulate. Withdrawn
A process for producing the hybrid particulate of claim 1, said process comprising: (A) dispersing said at least one graphene sheet and a precursor to said niobium-containing composite metal oxide in a liquid medium to form a suspension; (B) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form a precursor particulate containing said at least one graphene sheet s and particles or coating of said precursor; and (C) thermally or chemically converting said precursor particulate to form said hybrid particulate. Withdrawn
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has a size from 1 nm to 10 p m, wherein the first carbon material is in an amount of from 0.1% to 3% by weight based on the total weight of the first carbon material and the niobium-containing composite metal oxide combined, and wherein said hybrid particulate has an electrical conductivity no less than 10- 4 S/cm and said at least one graphene sheet is in an amount of from 0.01% to 30% by weight based on the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
hybrid particulate (graphene-enabled niobium-based composite metal oxide)
lithium-ion battery anode
Materials described outside the worked examples.
graphene sheet
niobium-containing composite metal oxide
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrical conductivity of hybrid particulate (claimed lower bound) | ≥ 0.0001 S/cm | — |
electrical conductivity of hybrid particulate (claim 5, greater than 10^-2 S/cm) | ≥ 0.01 S/cm | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(A) Schematic of a graphene-enhanced hybrid particulate according to a preferred embodiment of the present invention; and
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
FIG. 3 A schematic drawing illustrating that the graphene sheets disposed on the exterior surface of the particulates naturally form a 3-D network of …
FIG. 4 The specific capacity of 3 cells: one containing an anode of graphene-enhanced hybrid particulates of TiNb 2 0 7 particles/graphene, a cell containing an …
FIG. 5 shows the specific capacity of 2 lithium cells: a cell containing an anode of graphene-enhanced particulates of TiMoNb O 7 particles/graphene and a cell …
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A hybrid particulate for use as a lithium-ion battery anode active material, wherein said hybrid particulate is formed of at least one graphene sheet, a first carbon material, and at least one primary particle of a niobium-containing composite metal oxide, wherein the at least one graphene sheet comprises at least one exterior graphene sheet, wherein the first carbon material is coated on the at least one primary particle, and the at least one graphene sheet and the at least one primary particle are mutually bonded or agglomerated into said hybrid particulate containing the at least one exterior graphene sheet embracing said at least one primary particle, wherein said niobium-containing composite metal oxide is nucleated from said at least one graphene sheet, wherein said niobium-containing composite metal oxide is selected from the group consisting of M i(l) 1-.. < <. SVG 15822882.08-16-2021.KSF₀UHKKLDFLYX9.CLM.1.svg 0.16 5.87 Black and white M x TiNb 2 O 7 (0 < x < 0.5, and M = B- Na, Mg, S, P, K, Ca, Mo, W, Cr, Mn, Co, or Ni), Ti 2 Nb io-vTavOw (0 < v < 2, 27 < w < 29), P-doped versions thereof, B-doped versions thereof, carbon-coated versions thereof, and combinations thereof. Currently amended
The hybrid particulate of claim 1 wherein said at least one graphene sheet further contains at least one interior graphene sheet in physical contact with said at least one primary particle and said at least one exterior graphene sheet. Previously presented
The hybrid particulate of claim 1 wherein the at least one graphene sheet is in the amount of from 0.1 % to 10 % by weight of the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate has the electrical conductivity greater than 1 0- 2 S/cm. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate is substantially spherical in shape. Original
The hybrid particulate of claim 1 wherein said at least one graphene sheet comprises single-layer graphene or few-layer graphene, wherein the few-layer graphene is a graphene platelet formed of less than 10 graphene planes. Previously presented
The hybrid particulate of claim 1 wherein said at least one graphene sheet is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, nitrogenated graphene, hydrogenated graphene, doped graphene, functionalized graphene, or combinations thereof. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 1 pm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, further comprising a second carbon material in electronic contact with said at least one primary particle and said at least one graphene sheet. Previously presented
The hybrid particulate of claim 1, wherein said first carbon material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, carbon black, acetylene black, activated carbon, fine expanded graphite particle, artificial graphite particle, natural graphite particle, or a combination thereof. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1, wherein said hybrid particulates are packed together with said at least one graphene sheet forming a three-dimensional electron-conducting pathway. Previously presented
A process for producing the hybrid particulate of claim 1, said process comprising: (a) dispersing said at least one graphene sheet and particles of an anode active material in a liquid medium to form a suspension, wherein said anode active material contains said at least one primary particle; and (b) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form said hybrid particulate. Withdrawn
A process for producing the hybrid particulate of claim 1, said process comprising: (A) dispersing said at least one graphene sheet and a precursor to said niobium-containing composite metal oxide in a liquid medium to form a suspension; (B) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form a precursor particulate containing said at least one graphene sheet s and particles or coating of said precursor; and (C) thermally or chemically converting said precursor particulate to form said hybrid particulate. Withdrawn
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has a size from 1 nm to 10 p m, wherein the first carbon material is in an amount of from 0.1% to 3% by weight based on the total weight of the first carbon material and the niobium-containing composite metal oxide combined, and wherein said hybrid particulate has an electrical conductivity no less than 10- 4 S/cm and said at least one graphene sheet is in an amount of from 0.01% to 30% by weight based on the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
hybrid particulate (graphene-enabled niobium-based composite metal oxide)
lithium-ion battery anode
Materials described outside the worked examples.
graphene sheet
niobium-containing composite metal oxide
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrical conductivity of hybrid particulate (claimed lower bound) | ≥ 0.0001 S/cm | — |
electrical conductivity of hybrid particulate (claim 5, greater than 10^-2 S/cm) | ≥ 0.01 S/cm | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(A) Schematic of a graphene-enhanced hybrid particulate according to a preferred embodiment of the present invention; and
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
FIG. 3 A schematic drawing illustrating that the graphene sheets disposed on the exterior surface of the particulates naturally form a 3-D network of …
FIG. 4 The specific capacity of 3 cells: one containing an anode of graphene-enhanced hybrid particulates of TiNb 2 0 7 particles/graphene, a cell containing an …
FIG. 5 shows the specific capacity of 2 lithium cells: a cell containing an anode of graphene-enhanced particulates of TiMoNb O 7 particles/graphene and a cell …
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A hybrid particulate for use as a lithium-ion battery anode active material, wherein said hybrid particulate is formed of at least one graphene sheet, a first carbon material, and at least one primary particle of a niobium-containing composite metal oxide, wherein the at least one graphene sheet comprises at least one exterior graphene sheet, wherein the first carbon material is coated on the at least one primary particle, and the at least one graphene sheet and the at least one primary particle are mutually bonded or agglomerated into said hybrid particulate containing the at least one exterior graphene sheet embracing said at least one primary particle, wherein said niobium-containing composite metal oxide is nucleated from said at least one graphene sheet, wherein said niobium-containing composite metal oxide is selected from the group consisting of M i(l) 1-.. < <. SVG 15822882.08-16-2021.KSF₀UHKKLDFLYX9.CLM.1.svg 0.16 5.87 Black and white M x TiNb 2 O 7 (0 < x < 0.5, and M = B- Na, Mg, S, P, K, Ca, Mo, W, Cr, Mn, Co, or Ni), Ti 2 Nb io-vTavOw (0 < v < 2, 27 < w < 29), P-doped versions thereof, B-doped versions thereof, carbon-coated versions thereof, and combinations thereof. Currently amended
The hybrid particulate of claim 1 wherein said at least one graphene sheet further contains at least one interior graphene sheet in physical contact with said at least one primary particle and said at least one exterior graphene sheet. Previously presented
The hybrid particulate of claim 1 wherein the at least one graphene sheet is in the amount of from 0.1 % to 10 % by weight of the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate has the electrical conductivity greater than 1 0- 2 S/cm. Previously presented
The hybrid particulate of claim 1 wherein said hybrid particulate is substantially spherical in shape. Original
The hybrid particulate of claim 1 wherein said at least one graphene sheet comprises single-layer graphene or few-layer graphene, wherein the few-layer graphene is a graphene platelet formed of less than 10 graphene planes. Previously presented
The hybrid particulate of claim 1 wherein said at least one graphene sheet is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, nitrogenated graphene, hydrogenated graphene, doped graphene, functionalized graphene, or combinations thereof. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 1 pm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 100 nm. Previously presented
The hybrid particulate of claim 1, wherein said at least one primary particle of said niobium-containing composite metal oxide is a nanowire, nanotube, nanodisc, nanoribbon, nanobelt, or nanoplatelet form having the size from 1 nm to 10 nm. Previously presented
The hybrid particulate of claim 1, further comprising a second carbon material in electronic contact with said at least one primary particle and said at least one graphene sheet. Previously presented
The hybrid particulate of claim 1, wherein said first carbon material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, carbon black, acetylene black, activated carbon, fine expanded graphite particle, artificial graphite particle, natural graphite particle, or a combination thereof. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1. Previously presented
A lithium-ion battery anode comprising multiple said hybrid particulates of claim 1, wherein said hybrid particulates are packed together with said at least one graphene sheet forming a three-dimensional electron-conducting pathway. Previously presented
A process for producing the hybrid particulate of claim 1, said process comprising: (a) dispersing said at least one graphene sheet and particles of an anode active material in a liquid medium to form a suspension, wherein said anode active material contains said at least one primary particle; and (b) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form said hybrid particulate. Withdrawn
A process for producing the hybrid particulate of claim 1, said process comprising: (A) dispersing said at least one graphene sheet and a precursor to said niobium-containing composite metal oxide in a liquid medium to form a suspension; (B) drying said suspension using a procedure of spray-drying, spray-pyrolysis, fluidized- bed drying, ultrasonic spraying, aerosol spraying, or liquid atomization to form a precursor particulate containing said at least one graphene sheet s and particles or coating of said precursor; and (C) thermally or chemically converting said precursor particulate to form said hybrid particulate. Withdrawn
The hybrid particulate of claim 1, wherein said at least one primary particle in said hybrid particulate has a size from 1 nm to 10 p m, wherein the first carbon material is in an amount of from 0.1% to 3% by weight based on the total weight of the first carbon material and the niobium-containing composite metal oxide combined, and wherein said hybrid particulate has an electrical conductivity no less than 10- 4 S/cm and said at least one graphene sheet is in an amount of from 0.01% to 30% by weight based on the total weight of the at least one graphene sheet and the niobium-containing composite metal oxide combined. Previously presented
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
hybrid particulate (graphene-enabled niobium-based composite metal oxide)
lithium-ion battery anode
Materials described outside the worked examples.
graphene sheet
niobium-containing composite metal oxide
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2(A) Electrical conductivity data of three dry electrodes, one containing presently invented graphene-enhanced hybrid particulates of niobium-based …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
electrical conductivity of hybrid particulate (claimed lower bound) | ≥ 0.0001 S/cm | — |
electrical conductivity of hybrid particulate (claim 5, greater than 10^-2 S/cm) | ≥ 0.01 S/cm | — |
Duration |
Related documents with shared materials, methods, properties, or citations.
lithium-ion battery
first carbon material
MxTiNb₂O₇
second carbon material
Ti₂Nb₁₀-vTavOw
TiNb₂O₇
Li₄Ti₅O₁₂
pristine graphene
graphene oxide
reduced graphene oxide
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
| 900–7200 s |
| — |
Voltage | 1.1–1.5 V | — |
Thickness | 1–10 nm | — |
Duration | 15–60 seconds | — |
Temperature | 600–1100 °C | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 200–400 °C | — |
Temperature | 150–250 °C | — |
Duration | 30–90 seconds | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 3 nm | — |
Temperature | ≥ 31 °C | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |
Thickness | ≥ 1 nm | — |
Thickness | 1–100 nm | — |
lithium-ion battery
first carbon material
MxTiNb₂O₇
second carbon material
Ti₂Nb₁₀-vTavOw
TiNb₂O₇
Li₄Ti₅O₁₂
pristine graphene
graphene oxide
reduced graphene oxide
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
| 900–7200 s |
| — |
Voltage | 1.1–1.5 V | — |
Thickness | 1–10 nm | — |
Duration | 15–60 seconds | — |
Temperature | 600–1100 °C | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 200–400 °C | — |
Temperature | 150–250 °C | — |
Duration | 30–90 seconds | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 3 nm | — |
Temperature | ≥ 31 °C | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |
Thickness | ≥ 1 nm | — |
Thickness | 1–100 nm | — |
lithium-ion battery
first carbon material
MxTiNb₂O₇
second carbon material
Ti₂Nb₁₀-vTavOw
TiNb₂O₇
Li₄Ti₅O₁₂
pristine graphene
graphene oxide
reduced graphene oxide
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
| 900–7200 s |
| — |
Voltage | 1.1–1.5 V | — |
Thickness | 1–10 nm | — |
Duration | 15–60 seconds | — |
Temperature | 600–1100 °C | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 200–400 °C | — |
Temperature | 150–250 °C | — |
Duration | 30–90 seconds | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 3 nm | — |
Temperature | ≥ 31 °C | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |
Thickness | ≥ 1 nm | — |
Thickness | 1–100 nm | — |
lithium-ion battery
first carbon material
MxTiNb₂O₇
second carbon material
Ti₂Nb₁₀-vTavOw
TiNb₂O₇
Li₄Ti₅O₁₂
pristine graphene
graphene oxide
reduced graphene oxide
FIG. 6 The Ragone plots (power density vs. energy density) of three cells: a cell containing an anode of graphene-enhanced hybrid particulates of Fe o 1 Ti 0. …
| 900–7200 s |
| — |
Voltage | 1.1–1.5 V | — |
Thickness | 1–10 nm | — |
Duration | 15–60 seconds | — |
Temperature | 600–1100 °C | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 200–400 °C | — |
Temperature | 150–250 °C | — |
Duration | 30–90 seconds | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 3 nm | — |
Temperature | ≥ 31 °C | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |
Thickness | ≥ 1 nm | — |
Thickness | 1–100 nm | — |