Patent
US 10,020,494Anode Containing Active Material-Coated Graphene Sheets and Lithium-ion Battery
Yanbo Wang, Hui He, Aruna Zhamu, Bor Z. Jang
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,020,494Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. These adverse effects result in a significantly shortened cha r ge-discha r ge cycle life. 15 To overcome the problems associated with such mechanical …
FIG.2 Schematic of a process for producing anode active material-coated graphene sheets (e.g. 10 Si-, Sn-, and Sn₀ 2-coated graphene, graphene oxide, graphene …
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
FIG. 7 which shows the cycling behaviors of three lithium-ion batteries having a graphene-supported Si coating, a graphene/Si nano particle mixture, and a …
FIG. 8. These data again further affirm the superiority of the instant technology. In conclusion, we have successfully developed a new and novel class of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An anode electrode of a lithium-ion battery, comprising an anode active material-coated graphene sheet, wherein said graphene sheet has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. 5 % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said graphene material is selected from pristine graphene, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, a combination thereof, or a combination thereof with graphene oxide or reduced graphene oxide and wherein said active material coating has a thickness from 1 nm to 20 nm, wherein said anode active material- coated graphene sheet is a part of a secondary particle. Currently amended
The anode electrode of claim 1, wherein at least 80 % area of one of said surfaces is coated with an anode active material. Original
The anode electrode of claim 1, wherein said coated graphene sheet contains from 60 % to % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Previously presented
The anode electrode of claim 1, wherein said coated graphene sheet contains at least 90 % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Original
The anode electrode of claim 1, wherein said anode active material is in an amount from 60 % to 80 % by weight. Previously presented
The anode electrode of claim 1, wherein said anode active material is in an amount of at least 80 % by weight. Original
The anode electrode of claim 1, wherein said anode active material is selected from the group consisting of: (A) silicon (Si), germanium (Ge), tin (S n), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (A l), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (B) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements; (C) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, S n, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium- containing composites; (D) salts and hydroxides of Sn; (E) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (F) combinations thereof. Original
The anode electrode of claim 1, wherein said graphene material is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, or a combination thereof, and said graphene material comprises single-layer or less than 10 graphene planes. Original
The anode electrode of claim 1, wherein said anode active material comprises S n or Si as a primary element with Si or S n content no less than 20 % by weight based on the total weight of the anode active material. Original
The anode electrode of claim 1, wherein said anode active material comprises an element selected from Si, Ge, S n, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti. Original
The anode electrode of claim 1, wherein said anode active material coating has a thickness less than 20 nm. Previously presented
The anode electrode of claim 1, further comprising a carbon or graphite material therein. Original
A lithium-ion battery containing an anode electrode of claim 1, a cathode electrode, a porous separator and/or electrolyte in contact with said anode electrode and said cathode electrode. Original
A process for producing an anode electrode of claim 1, said process comprising: (a) providing a continuous film of a graphene material into a deposition zone; (b) introducing vapor or atoms of a precursor anode active material into said deposition zone and depositing said vapor or atoms onto a surface of said graphene material to form a coated film of an anode active material-coated graphene material; and (c) mechanically breaking said coated film into multiple pieces of anode active material- coated graphene sheets; and (d) combining multiple pieces of anode active material-coated graphene sheets with an optional binder resin to form said anode electrode. Withdrawn
. Canceled
. Canceled
. Canceled
. Canceled
An anode electrode of a lithium-ion battery, comprising multiple anode active material-coated graphene sheets constituting one or multiple secondary particles, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm, wherein said one or multiple secondary particles is ellipsoidal in shape with a major axis less than 10 pm. New
An anode electrode of a lithium-ion battery, comprising multiple secondary particles each consisting essentially of multiple anode active material-coated graphene sheets, an optional resin binder, and an optional conductive filler, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0. 1% to 99.5% by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few- layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm. New
Layer stacks claimed or described, ordered top of device to substrate.
anode electrode of a lithium-ion battery
lithium-ion battery
Materials described outside the worked examples.
graphene sheet (supporting substrate)
anode active material coating
Measurements and analyses referenced in the patent, with their drawing references.
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.4–20 nm | — |
Thickness | 0.4–5 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,020,494Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. These adverse effects result in a significantly shortened cha r ge-discha r ge cycle life. 15 To overcome the problems associated with such mechanical …
FIG.2 Schematic of a process for producing anode active material-coated graphene sheets (e.g. 10 Si-, Sn-, and Sn₀ 2-coated graphene, graphene oxide, graphene …
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
FIG. 7 which shows the cycling behaviors of three lithium-ion batteries having a graphene-supported Si coating, a graphene/Si nano particle mixture, and a …
FIG. 8. These data again further affirm the superiority of the instant technology. In conclusion, we have successfully developed a new and novel class of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An anode electrode of a lithium-ion battery, comprising an anode active material-coated graphene sheet, wherein said graphene sheet has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. 5 % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said graphene material is selected from pristine graphene, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, a combination thereof, or a combination thereof with graphene oxide or reduced graphene oxide and wherein said active material coating has a thickness from 1 nm to 20 nm, wherein said anode active material- coated graphene sheet is a part of a secondary particle. Currently amended
The anode electrode of claim 1, wherein at least 80 % area of one of said surfaces is coated with an anode active material. Original
The anode electrode of claim 1, wherein said coated graphene sheet contains from 60 % to % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Previously presented
The anode electrode of claim 1, wherein said coated graphene sheet contains at least 90 % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Original
The anode electrode of claim 1, wherein said anode active material is in an amount from 60 % to 80 % by weight. Previously presented
The anode electrode of claim 1, wherein said anode active material is in an amount of at least 80 % by weight. Original
The anode electrode of claim 1, wherein said anode active material is selected from the group consisting of: (A) silicon (Si), germanium (Ge), tin (S n), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (A l), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (B) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements; (C) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, S n, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium- containing composites; (D) salts and hydroxides of Sn; (E) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (F) combinations thereof. Original
The anode electrode of claim 1, wherein said graphene material is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, or a combination thereof, and said graphene material comprises single-layer or less than 10 graphene planes. Original
The anode electrode of claim 1, wherein said anode active material comprises S n or Si as a primary element with Si or S n content no less than 20 % by weight based on the total weight of the anode active material. Original
The anode electrode of claim 1, wherein said anode active material comprises an element selected from Si, Ge, S n, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti. Original
The anode electrode of claim 1, wherein said anode active material coating has a thickness less than 20 nm. Previously presented
The anode electrode of claim 1, further comprising a carbon or graphite material therein. Original
A lithium-ion battery containing an anode electrode of claim 1, a cathode electrode, a porous separator and/or electrolyte in contact with said anode electrode and said cathode electrode. Original
A process for producing an anode electrode of claim 1, said process comprising: (a) providing a continuous film of a graphene material into a deposition zone; (b) introducing vapor or atoms of a precursor anode active material into said deposition zone and depositing said vapor or atoms onto a surface of said graphene material to form a coated film of an anode active material-coated graphene material; and (c) mechanically breaking said coated film into multiple pieces of anode active material- coated graphene sheets; and (d) combining multiple pieces of anode active material-coated graphene sheets with an optional binder resin to form said anode electrode. Withdrawn
. Canceled
. Canceled
. Canceled
. Canceled
An anode electrode of a lithium-ion battery, comprising multiple anode active material-coated graphene sheets constituting one or multiple secondary particles, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm, wherein said one or multiple secondary particles is ellipsoidal in shape with a major axis less than 10 pm. New
An anode electrode of a lithium-ion battery, comprising multiple secondary particles each consisting essentially of multiple anode active material-coated graphene sheets, an optional resin binder, and an optional conductive filler, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0. 1% to 99.5% by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few- layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm. New
Layer stacks claimed or described, ordered top of device to substrate.
anode electrode of a lithium-ion battery
lithium-ion battery
Materials described outside the worked examples.
graphene sheet (supporting substrate)
anode active material coating
Measurements and analyses referenced in the patent, with their drawing references.
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.4–20 nm | — |
Thickness | 0.4–5 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,020,494Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. These adverse effects result in a significantly shortened cha r ge-discha r ge cycle life. 15 To overcome the problems associated with such mechanical …
FIG.2 Schematic of a process for producing anode active material-coated graphene sheets (e.g. 10 Si-, Sn-, and Sn₀ 2-coated graphene, graphene oxide, graphene …
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
FIG. 7 which shows the cycling behaviors of three lithium-ion batteries having a graphene-supported Si coating, a graphene/Si nano particle mixture, and a …
FIG. 8. These data again further affirm the superiority of the instant technology. In conclusion, we have successfully developed a new and novel class of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An anode electrode of a lithium-ion battery, comprising an anode active material-coated graphene sheet, wherein said graphene sheet has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. 5 % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said graphene material is selected from pristine graphene, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, a combination thereof, or a combination thereof with graphene oxide or reduced graphene oxide and wherein said active material coating has a thickness from 1 nm to 20 nm, wherein said anode active material- coated graphene sheet is a part of a secondary particle. Currently amended
The anode electrode of claim 1, wherein at least 80 % area of one of said surfaces is coated with an anode active material. Original
The anode electrode of claim 1, wherein said coated graphene sheet contains from 60 % to % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Previously presented
The anode electrode of claim 1, wherein said coated graphene sheet contains at least 90 % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Original
The anode electrode of claim 1, wherein said anode active material is in an amount from 60 % to 80 % by weight. Previously presented
The anode electrode of claim 1, wherein said anode active material is in an amount of at least 80 % by weight. Original
The anode electrode of claim 1, wherein said anode active material is selected from the group consisting of: (A) silicon (Si), germanium (Ge), tin (S n), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (A l), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (B) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements; (C) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, S n, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium- containing composites; (D) salts and hydroxides of Sn; (E) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (F) combinations thereof. Original
The anode electrode of claim 1, wherein said graphene material is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, or a combination thereof, and said graphene material comprises single-layer or less than 10 graphene planes. Original
The anode electrode of claim 1, wherein said anode active material comprises S n or Si as a primary element with Si or S n content no less than 20 % by weight based on the total weight of the anode active material. Original
The anode electrode of claim 1, wherein said anode active material comprises an element selected from Si, Ge, S n, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti. Original
The anode electrode of claim 1, wherein said anode active material coating has a thickness less than 20 nm. Previously presented
The anode electrode of claim 1, further comprising a carbon or graphite material therein. Original
A lithium-ion battery containing an anode electrode of claim 1, a cathode electrode, a porous separator and/or electrolyte in contact with said anode electrode and said cathode electrode. Original
A process for producing an anode electrode of claim 1, said process comprising: (a) providing a continuous film of a graphene material into a deposition zone; (b) introducing vapor or atoms of a precursor anode active material into said deposition zone and depositing said vapor or atoms onto a surface of said graphene material to form a coated film of an anode active material-coated graphene material; and (c) mechanically breaking said coated film into multiple pieces of anode active material- coated graphene sheets; and (d) combining multiple pieces of anode active material-coated graphene sheets with an optional binder resin to form said anode electrode. Withdrawn
. Canceled
. Canceled
. Canceled
. Canceled
An anode electrode of a lithium-ion battery, comprising multiple anode active material-coated graphene sheets constituting one or multiple secondary particles, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm, wherein said one or multiple secondary particles is ellipsoidal in shape with a major axis less than 10 pm. New
An anode electrode of a lithium-ion battery, comprising multiple secondary particles each consisting essentially of multiple anode active material-coated graphene sheets, an optional resin binder, and an optional conductive filler, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0. 1% to 99.5% by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few- layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm. New
Layer stacks claimed or described, ordered top of device to substrate.
anode electrode of a lithium-ion battery
lithium-ion battery
Materials described outside the worked examples.
graphene sheet (supporting substrate)
anode active material coating
Measurements and analyses referenced in the patent, with their drawing references.
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.4–20 nm | — |
Thickness | 0.4–5 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,020,494Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1. These adverse effects result in a significantly shortened cha r ge-discha r ge cycle life. 15 To overcome the problems associated with such mechanical …
FIG.2 Schematic of a process for producing anode active material-coated graphene sheets (e.g. 10 Si-, Sn-, and Sn₀ 2-coated graphene, graphene oxide, graphene …
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
FIG. 7 which shows the cycling behaviors of three lithium-ion batteries having a graphene-supported Si coating, a graphene/Si nano particle mixture, and a …
FIG. 8. These data again further affirm the superiority of the instant technology. In conclusion, we have successfully developed a new and novel class of …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An anode electrode of a lithium-ion battery, comprising an anode active material-coated graphene sheet, wherein said graphene sheet has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. 5 % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said graphene material is selected from pristine graphene, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, a combination thereof, or a combination thereof with graphene oxide or reduced graphene oxide and wherein said active material coating has a thickness from 1 nm to 20 nm, wherein said anode active material- coated graphene sheet is a part of a secondary particle. Currently amended
The anode electrode of claim 1, wherein at least 80 % area of one of said surfaces is coated with an anode active material. Original
The anode electrode of claim 1, wherein said coated graphene sheet contains from 60 % to % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Previously presented
The anode electrode of claim 1, wherein said coated graphene sheet contains at least 90 % by weight or by volume of said anode active material based on the total weight of said coated graphene sheet. Original
The anode electrode of claim 1, wherein said anode active material is in an amount from 60 % to 80 % by weight. Previously presented
The anode electrode of claim 1, wherein said anode active material is in an amount of at least 80 % by weight. Original
The anode electrode of claim 1, wherein said anode active material is selected from the group consisting of: (A) silicon (Si), germanium (Ge), tin (S n), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (A l), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (B) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements; (C) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, S n, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium- containing composites; (D) salts and hydroxides of Sn; (E) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (F) combinations thereof. Original
The anode electrode of claim 1, wherein said graphene material is selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene bromide, graphene iodide, boron-doped graphene, nitrogen-doped graphene, chemically functionalized graphene, or a combination thereof, and said graphene material comprises single-layer or less than 10 graphene planes. Original
The anode electrode of claim 1, wherein said anode active material comprises S n or Si as a primary element with Si or S n content no less than 20 % by weight based on the total weight of the anode active material. Original
The anode electrode of claim 1, wherein said anode active material comprises an element selected from Si, Ge, S n, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti. Original
The anode electrode of claim 1, wherein said anode active material coating has a thickness less than 20 nm. Previously presented
The anode electrode of claim 1, further comprising a carbon or graphite material therein. Original
A lithium-ion battery containing an anode electrode of claim 1, a cathode electrode, a porous separator and/or electrolyte in contact with said anode electrode and said cathode electrode. Original
A process for producing an anode electrode of claim 1, said process comprising: (a) providing a continuous film of a graphene material into a deposition zone; (b) introducing vapor or atoms of a precursor anode active material into said deposition zone and depositing said vapor or atoms onto a surface of said graphene material to form a coated film of an anode active material-coated graphene material; and (c) mechanically breaking said coated film into multiple pieces of anode active material- coated graphene sheets; and (d) combining multiple pieces of anode active material-coated graphene sheets with an optional binder resin to form said anode electrode. Withdrawn
. Canceled
. Canceled
. Canceled
. Canceled
An anode electrode of a lithium-ion battery, comprising multiple anode active material-coated graphene sheets constituting one or multiple secondary particles, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0.1 % to 99. % by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few-layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm, wherein said one or multiple secondary particles is ellipsoidal in shape with a major axis less than 10 pm. New
An anode electrode of a lithium-ion battery, comprising multiple secondary particles each consisting essentially of multiple anode active material-coated graphene sheets, an optional resin binder, and an optional conductive filler, wherein each of said graphene sheets has two opposed parallel surfaces and at least 50 % area of one of said surfaces is coated with an anode active material coating wherein said graphene sheet is used as a supporting substrate and a primary surface of said anode active material coating is completely supported by said graphene sheet, and wherein said graphene material is in an amount of from 0. 1% to 99.5% by weight and said anode active material is in an amount of at least 0.5 % by weight, all based on the total weight of said graphene material and said anode active material combined and wherein said graphene sheet is selected from a single-layer graphene or few- layer graphene having up to 10 graphene planes or 5 nm in thickness and said active material coating has a thickness from 1 nm to 20 nm. New
Layer stacks claimed or described, ordered top of device to substrate.
anode electrode of a lithium-ion battery
lithium-ion battery
Materials described outside the worked examples.
graphene sheet (supporting substrate)
anode active material coating
Measurements and analyses referenced in the patent, with their drawing references.
FIG.3 SEM image of a graphene-enhanced anode particulate (secondary particle) according to a preferred embodiment of the present invention.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 0.4–20 nm | — |
Thickness | 0.4–5 nm |
Related documents with shared materials, methods, properties, or citations.
pristine graphene
graphene fluoride
graphene bromide
graphene iodide
boron-doped graphene
nitrogen-doped graphene
chemically functionalized graphene
anode active material (claimed group)
carbon or graphite material
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
| — |
Thickness | 1–100 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–30 nm | — |
Duration | 15–60 seconds | — |
Thickness | 4–5 nm | — |
Duration | 1–2 hours | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |
Pressure | ≥ 22.1 MPa | — |
pristine graphene
graphene fluoride
graphene bromide
graphene iodide
boron-doped graphene
nitrogen-doped graphene
chemically functionalized graphene
anode active material (claimed group)
carbon or graphite material
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
| — |
Thickness | 1–100 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–30 nm | — |
Duration | 15–60 seconds | — |
Thickness | 4–5 nm | — |
Duration | 1–2 hours | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |
Pressure | ≥ 22.1 MPa | — |
pristine graphene
graphene fluoride
graphene bromide
graphene iodide
boron-doped graphene
nitrogen-doped graphene
chemically functionalized graphene
anode active material (claimed group)
carbon or graphite material
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
| — |
Thickness | 1–100 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–30 nm | — |
Duration | 15–60 seconds | — |
Thickness | 4–5 nm | — |
Duration | 1–2 hours | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |
Pressure | ≥ 22.1 MPa | — |
pristine graphene
graphene fluoride
graphene bromide
graphene iodide
boron-doped graphene
nitrogen-doped graphene
chemically functionalized graphene
anode active material (claimed group)
carbon or graphite material
FIG. 4 shows the volume fraction of the Si coating in Si-coated graphene sheets plotted as a function of the Si coating thickness for various graphene platelet …
FIG. 5 (A) schematic of a prior art lithium-ion battery cell composed of an anode current collector, an anode electrode (e.g. thin Si coating layer), a porous …
FIG. 6(A), a prior art anode is a thin film Si anode coated on a sheet of Cu foil current collector. The thinnest available Cu foil is 8 -20 p m thick and the …
| — |
Thickness | 1–100 nm | — |
Thickness | 1–20 nm | — |
Thickness | 1–30 nm | — |
Duration | 15–60 seconds | — |
Thickness | 4–5 nm | — |
Duration | 1–2 hours | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.5 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 10 nm | — |
Pressure | ≥ 22.1 MPa | — |