Patent
US 10,559,811GRAPHENE-ENHANCED ANODE PARTICULATES FOR LITHIUM ION BATTERIES
Aruna Zhamu, Jinjun Shi, Guorong Chen, Qing Fang et al.
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,559,811Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic depiction of a prior art anode active material (e.g., Si particles) that tends to undergo pulverization during battery charge-discharge …
FIG. 2(A) depicts a spherical nanocomposite particle comprising electro-active materials (e.g., Si nano particles) and NGPs dispersed in a protective matrix …
FIG. 3(A) depicts a schematic of a graphene-enhanced anode particulate according to a preferred embodiment of the present invention;
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
FIG. 7(A) depicts a schematic of prior art layered Co 3 0 4/graphene composites;
FIG. 8 is a graph depicting charge-discharge cycling behaviors of battery cells having an anode featuring graphene-enhanced particulates, layered Co 3 0 …
FIG. 9 is a graph depicting cycling behaviors of graphene-enhanced Sn O 2 particulates of the present invention and SnO 2 -graphene composites prepared …
FIG. 10 is a graph depicting the capacity decay curves of three pouch cells: Cell- 8 (both the anode and the cathode featuring graphene-enhanced particulates), …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a first graphene sheet and encapsulates: a plurality of anode active material particles; and a second graphene sheet; wherein the second graphene sheet is operative to separate some of the anode active material particles from one another.
The anode of Claim 1, where the first graphene sheet comprises a plurality of sheets and where the second graphene sheet comprises a plurality of sheets.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material particle is in an amount of at least 0. 1% by weight, all based on the total weight of said particulate.
The anode of Claim 1, wherein said particulate is spherical or ellipsoidal in shape.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet each comprises single-layer graphene or few-layer graphene, wherein said few-layer graphene is defined as a graphene platelet formed of less than 10 graphene planes. YPL₁₄₁₇USC 2
The anode of Claim 1, wherein said anode active material particle comprises Sn or Si as a primary element with Si or Sn content no less than 20 % by weight based on the total weight of the anode active material particle.
The anode of Claim 1, wherein said anode active material particle comprises an element selected from Si, Ge, Sn, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti.
The anode of Claim 1, wherein said anode active material particle is selected from the group consisting of (g) silicon (Si), germanium (Ge), tin (Sn), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (Al), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (h) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements, wherein said alloys or compounds are stoichiometric or nonstoichiometric; (i) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium containing composites; (j) salts and hydroxides of Sn; (k) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (1) combinations thereof.
The anode of claim 1, wherein said anode active material particles in a particulate has a dimension smaller than 1 pm.
The anode of claim 1, wherein said anode active material particle in a particulate has a dimension smaller than 100 nm. YPL₁₄₁₇USC 3
The anode of claim 1, further comprising a carbon or graphite material in electronic contact with said anode active material particle and a graphene sheet.
The anode of claim 1, further comprising a carbon or graphite material coated on or in contact with at least one of said anode active material particle, wherein said carbon or graphite material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, coal tar pitch, petroleum pitch, meso-phase pitch, carbon black, coke, acetylene black, activated carbon, fine expanded graphite particle with a dimension smaller than 100 nm, artificial graphite particle, natural graphite particle, or a combination thereof.
15 The anode of Claim 1, wherein said anode active material particle is selected from lithiated titanium dioxide, lithiated titanium oxide, lithium titanate, or Li₄Ti 5Ol2.
The anode of Claim 1 wherein said anode active material particle is selected from natural graphite, artificial graphite, meso-carbon micro-bead (MCM B), graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon or graphite fiber segments, carbon nano-fiber or graphitic nano-fiber, carbon nano- tube, or a combination thereof.
The anode of Claim [[4]] 1 wherein the first graphene sheet and the second graphene sheet are present in an amount of at least at least 1% by weight.
A lithium-ion battery anode comprising: multiple nano graphene-enhanced particulates, where each graphene-enhanced particulate comprises an envelope that comprises a single first graphene sheet or a plurality of first graphene sheets that surround(s): YPL₁₄₁₇USC 4 a plurality of anode active material particles; where the anode active material particles have a size smaller than pm; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets is/are operative to separate some of the anode active material particles from one another.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a single first graphene sheet or a plurality of first graphene sheets and encapsulates: a plurality of anode active material particles; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets are operative to separate some of the anode active material particles from one another, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material part SVG 15403759.03-27-2017.J₀V₇ANPEPXXIFW2.CLM.4.14.1940.1487.2024.1530.svg 0.143 0.28 Chemistry Black and white YPL₁₄₁₇USC
Layer stacks claimed or described, ordered top of device to substrate.
lithium-ion battery anode with graphene-enhanced particulate
Materials described outside the worked examples.
first graphene sheet
second graphene sheet
anode active material particles
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 15–60 seconds | — |
Temperature | 0–1000 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,559,811Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic depiction of a prior art anode active material (e.g., Si particles) that tends to undergo pulverization during battery charge-discharge …
FIG. 2(A) depicts a spherical nanocomposite particle comprising electro-active materials (e.g., Si nano particles) and NGPs dispersed in a protective matrix …
FIG. 3(A) depicts a schematic of a graphene-enhanced anode particulate according to a preferred embodiment of the present invention;
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
FIG. 7(A) depicts a schematic of prior art layered Co 3 0 4/graphene composites;
FIG. 8 is a graph depicting charge-discharge cycling behaviors of battery cells having an anode featuring graphene-enhanced particulates, layered Co 3 0 …
FIG. 9 is a graph depicting cycling behaviors of graphene-enhanced Sn O 2 particulates of the present invention and SnO 2 -graphene composites prepared …
FIG. 10 is a graph depicting the capacity decay curves of three pouch cells: Cell- 8 (both the anode and the cathode featuring graphene-enhanced particulates), …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a first graphene sheet and encapsulates: a plurality of anode active material particles; and a second graphene sheet; wherein the second graphene sheet is operative to separate some of the anode active material particles from one another.
The anode of Claim 1, where the first graphene sheet comprises a plurality of sheets and where the second graphene sheet comprises a plurality of sheets.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material particle is in an amount of at least 0. 1% by weight, all based on the total weight of said particulate.
The anode of Claim 1, wherein said particulate is spherical or ellipsoidal in shape.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet each comprises single-layer graphene or few-layer graphene, wherein said few-layer graphene is defined as a graphene platelet formed of less than 10 graphene planes. YPL₁₄₁₇USC 2
The anode of Claim 1, wherein said anode active material particle comprises Sn or Si as a primary element with Si or Sn content no less than 20 % by weight based on the total weight of the anode active material particle.
The anode of Claim 1, wherein said anode active material particle comprises an element selected from Si, Ge, Sn, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti.
The anode of Claim 1, wherein said anode active material particle is selected from the group consisting of (g) silicon (Si), germanium (Ge), tin (Sn), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (Al), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (h) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements, wherein said alloys or compounds are stoichiometric or nonstoichiometric; (i) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium containing composites; (j) salts and hydroxides of Sn; (k) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (1) combinations thereof.
The anode of claim 1, wherein said anode active material particles in a particulate has a dimension smaller than 1 pm.
The anode of claim 1, wherein said anode active material particle in a particulate has a dimension smaller than 100 nm. YPL₁₄₁₇USC 3
The anode of claim 1, further comprising a carbon or graphite material in electronic contact with said anode active material particle and a graphene sheet.
The anode of claim 1, further comprising a carbon or graphite material coated on or in contact with at least one of said anode active material particle, wherein said carbon or graphite material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, coal tar pitch, petroleum pitch, meso-phase pitch, carbon black, coke, acetylene black, activated carbon, fine expanded graphite particle with a dimension smaller than 100 nm, artificial graphite particle, natural graphite particle, or a combination thereof.
15 The anode of Claim 1, wherein said anode active material particle is selected from lithiated titanium dioxide, lithiated titanium oxide, lithium titanate, or Li₄Ti 5Ol2.
The anode of Claim 1 wherein said anode active material particle is selected from natural graphite, artificial graphite, meso-carbon micro-bead (MCM B), graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon or graphite fiber segments, carbon nano-fiber or graphitic nano-fiber, carbon nano- tube, or a combination thereof.
The anode of Claim [[4]] 1 wherein the first graphene sheet and the second graphene sheet are present in an amount of at least at least 1% by weight.
A lithium-ion battery anode comprising: multiple nano graphene-enhanced particulates, where each graphene-enhanced particulate comprises an envelope that comprises a single first graphene sheet or a plurality of first graphene sheets that surround(s): YPL₁₄₁₇USC 4 a plurality of anode active material particles; where the anode active material particles have a size smaller than pm; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets is/are operative to separate some of the anode active material particles from one another.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a single first graphene sheet or a plurality of first graphene sheets and encapsulates: a plurality of anode active material particles; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets are operative to separate some of the anode active material particles from one another, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material part SVG 15403759.03-27-2017.J₀V₇ANPEPXXIFW2.CLM.4.14.1940.1487.2024.1530.svg 0.143 0.28 Chemistry Black and white YPL₁₄₁₇USC
Layer stacks claimed or described, ordered top of device to substrate.
lithium-ion battery anode with graphene-enhanced particulate
Materials described outside the worked examples.
first graphene sheet
second graphene sheet
anode active material particles
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 15–60 seconds | — |
Temperature | 0–1000 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,559,811Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic depiction of a prior art anode active material (e.g., Si particles) that tends to undergo pulverization during battery charge-discharge …
FIG. 2(A) depicts a spherical nanocomposite particle comprising electro-active materials (e.g., Si nano particles) and NGPs dispersed in a protective matrix …
FIG. 3(A) depicts a schematic of a graphene-enhanced anode particulate according to a preferred embodiment of the present invention;
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
FIG. 7(A) depicts a schematic of prior art layered Co 3 0 4/graphene composites;
FIG. 8 is a graph depicting charge-discharge cycling behaviors of battery cells having an anode featuring graphene-enhanced particulates, layered Co 3 0 …
FIG. 9 is a graph depicting cycling behaviors of graphene-enhanced Sn O 2 particulates of the present invention and SnO 2 -graphene composites prepared …
FIG. 10 is a graph depicting the capacity decay curves of three pouch cells: Cell- 8 (both the anode and the cathode featuring graphene-enhanced particulates), …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a first graphene sheet and encapsulates: a plurality of anode active material particles; and a second graphene sheet; wherein the second graphene sheet is operative to separate some of the anode active material particles from one another.
The anode of Claim 1, where the first graphene sheet comprises a plurality of sheets and where the second graphene sheet comprises a plurality of sheets.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material particle is in an amount of at least 0. 1% by weight, all based on the total weight of said particulate.
The anode of Claim 1, wherein said particulate is spherical or ellipsoidal in shape.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet each comprises single-layer graphene or few-layer graphene, wherein said few-layer graphene is defined as a graphene platelet formed of less than 10 graphene planes. YPL₁₄₁₇USC 2
The anode of Claim 1, wherein said anode active material particle comprises Sn or Si as a primary element with Si or Sn content no less than 20 % by weight based on the total weight of the anode active material particle.
The anode of Claim 1, wherein said anode active material particle comprises an element selected from Si, Ge, Sn, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti.
The anode of Claim 1, wherein said anode active material particle is selected from the group consisting of (g) silicon (Si), germanium (Ge), tin (Sn), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (Al), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (h) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements, wherein said alloys or compounds are stoichiometric or nonstoichiometric; (i) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium containing composites; (j) salts and hydroxides of Sn; (k) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (1) combinations thereof.
The anode of claim 1, wherein said anode active material particles in a particulate has a dimension smaller than 1 pm.
The anode of claim 1, wherein said anode active material particle in a particulate has a dimension smaller than 100 nm. YPL₁₄₁₇USC 3
The anode of claim 1, further comprising a carbon or graphite material in electronic contact with said anode active material particle and a graphene sheet.
The anode of claim 1, further comprising a carbon or graphite material coated on or in contact with at least one of said anode active material particle, wherein said carbon or graphite material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, coal tar pitch, petroleum pitch, meso-phase pitch, carbon black, coke, acetylene black, activated carbon, fine expanded graphite particle with a dimension smaller than 100 nm, artificial graphite particle, natural graphite particle, or a combination thereof.
15 The anode of Claim 1, wherein said anode active material particle is selected from lithiated titanium dioxide, lithiated titanium oxide, lithium titanate, or Li₄Ti 5Ol2.
The anode of Claim 1 wherein said anode active material particle is selected from natural graphite, artificial graphite, meso-carbon micro-bead (MCM B), graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon or graphite fiber segments, carbon nano-fiber or graphitic nano-fiber, carbon nano- tube, or a combination thereof.
The anode of Claim [[4]] 1 wherein the first graphene sheet and the second graphene sheet are present in an amount of at least at least 1% by weight.
A lithium-ion battery anode comprising: multiple nano graphene-enhanced particulates, where each graphene-enhanced particulate comprises an envelope that comprises a single first graphene sheet or a plurality of first graphene sheets that surround(s): YPL₁₄₁₇USC 4 a plurality of anode active material particles; where the anode active material particles have a size smaller than pm; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets is/are operative to separate some of the anode active material particles from one another.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a single first graphene sheet or a plurality of first graphene sheets and encapsulates: a plurality of anode active material particles; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets are operative to separate some of the anode active material particles from one another, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material part SVG 15403759.03-27-2017.J₀V₇ANPEPXXIFW2.CLM.4.14.1940.1487.2024.1530.svg 0.143 0.28 Chemistry Black and white YPL₁₄₁₇USC
Layer stacks claimed or described, ordered top of device to substrate.
lithium-ion battery anode with graphene-enhanced particulate
Materials described outside the worked examples.
first graphene sheet
second graphene sheet
anode active material particles
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 15–60 seconds | — |
Temperature | 0–1000 °C |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,559,811Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic depiction of a prior art anode active material (e.g., Si particles) that tends to undergo pulverization during battery charge-discharge …
FIG. 2(A) depicts a spherical nanocomposite particle comprising electro-active materials (e.g., Si nano particles) and NGPs dispersed in a protective matrix …
FIG. 3(A) depicts a schematic of a graphene-enhanced anode particulate according to a preferred embodiment of the present invention;
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
FIG. 7(A) depicts a schematic of prior art layered Co 3 0 4/graphene composites;
FIG. 8 is a graph depicting charge-discharge cycling behaviors of battery cells having an anode featuring graphene-enhanced particulates, layered Co 3 0 …
FIG. 9 is a graph depicting cycling behaviors of graphene-enhanced Sn O 2 particulates of the present invention and SnO 2 -graphene composites prepared …
FIG. 10 is a graph depicting the capacity decay curves of three pouch cells: Cell- 8 (both the anode and the cathode featuring graphene-enhanced particulates), …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a first graphene sheet and encapsulates: a plurality of anode active material particles; and a second graphene sheet; wherein the second graphene sheet is operative to separate some of the anode active material particles from one another.
The anode of Claim 1, where the first graphene sheet comprises a plurality of sheets and where the second graphene sheet comprises a plurality of sheets.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material particle is in an amount of at least 0. 1% by weight, all based on the total weight of said particulate.
The anode of Claim 1, wherein said particulate is spherical or ellipsoidal in shape.
The anode of Claim 1, wherein the first graphene sheet and the second graphene sheet each comprises single-layer graphene or few-layer graphene, wherein said few-layer graphene is defined as a graphene platelet formed of less than 10 graphene planes. YPL₁₄₁₇USC 2
The anode of Claim 1, wherein said anode active material particle comprises Sn or Si as a primary element with Si or Sn content no less than 20 % by weight based on the total weight of the anode active material particle.
The anode of Claim 1, wherein said anode active material particle comprises an element selected from Si, Ge, Sn, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, or Ti.
The anode of Claim 1, wherein said anode active material particle is selected from the group consisting of (g) silicon (Si), germanium (Ge), tin (Sn), lead (Pb), antimony (Sb), bismuth (Bi), zin c (Zn), aluminum (Al), titanium (Ti), nickel (Ni), cobalt (Co), and cadmium (Cd); (h) alloys or intermetallic compounds of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Ni, Co, or Cd with other elements, wherein said alloys or compounds are stoichiometric or nonstoichiometric; (i) oxides, carbides, nitrides, sulfides, phosphides, selenides, and tellurides of Si, Ge, Sn, Pb, Sb, Bi, Zn, Al, Ti, Fe, Ni, Co, or Cd, and their mixtures, composites, or lithium containing composites; (j) salts and hydroxides of Sn; (k) lithium titanate, lithium manganate, lithium aluminate, lithium-containing titanium oxide, lithium transition metal oxide; and (1) combinations thereof.
The anode of claim 1, wherein said anode active material particles in a particulate has a dimension smaller than 1 pm.
The anode of claim 1, wherein said anode active material particle in a particulate has a dimension smaller than 100 nm. YPL₁₄₁₇USC 3
The anode of claim 1, further comprising a carbon or graphite material in electronic contact with said anode active material particle and a graphene sheet.
The anode of claim 1, further comprising a carbon or graphite material coated on or in contact with at least one of said anode active material particle, wherein said carbon or graphite material is selected from polymeric carbon, amorphous carbon, chemical vapor deposition carbon, coal tar pitch, petroleum pitch, meso-phase pitch, carbon black, coke, acetylene black, activated carbon, fine expanded graphite particle with a dimension smaller than 100 nm, artificial graphite particle, natural graphite particle, or a combination thereof.
15 The anode of Claim 1, wherein said anode active material particle is selected from lithiated titanium dioxide, lithiated titanium oxide, lithium titanate, or Li₄Ti 5Ol2.
The anode of Claim 1 wherein said anode active material particle is selected from natural graphite, artificial graphite, meso-carbon micro-bead (MCM B), graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon or graphite fiber segments, carbon nano-fiber or graphitic nano-fiber, carbon nano- tube, or a combination thereof.
The anode of Claim [[4]] 1 wherein the first graphene sheet and the second graphene sheet are present in an amount of at least at least 1% by weight.
A lithium-ion battery anode comprising: multiple nano graphene-enhanced particulates, where each graphene-enhanced particulate comprises an envelope that comprises a single first graphene sheet or a plurality of first graphene sheets that surround(s): YPL₁₄₁₇USC 4 a plurality of anode active material particles; where the anode active material particles have a size smaller than pm; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets is/are operative to separate some of the anode active material particles from one another.
A lithium-ion battery anode comprising: a particulate comprising an envelope, where the envelope comprises a single first graphene sheet or a plurality of first graphene sheets and encapsulates: a plurality of anode active material particles; and a single second graphene sheet or a plurality of second graphene sheets; wherein the single second graphene sheet or the plurality of second graphene sheets are operative to separate some of the anode active material particles from one another, wherein the first graphene sheet and the second graphene sheet are in an amount of at least 0.01 % but less than 99 % by weight and said anode active material part SVG 15403759.03-27-2017.J₀V₇ANPEPXXIFW2.CLM.4.14.1940.1487.2024.1530.svg 0.143 0.28 Chemistry Black and white YPL₁₄₁₇USC
Layer stacks claimed or described, ordered top of device to substrate.
lithium-ion battery anode with graphene-enhanced particulate
Materials described outside the worked examples.
first graphene sheet
second graphene sheet
anode active material particles
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4(C) is a higher-magnification SEM image of graphene-enhanced particulates. Graphene sheets embrace and protect the primary particles to form secondary …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 15–60 seconds | — |
Temperature | 0–1000 °C |
Related documents with shared materials, methods, properties, or citations.
silicon
Si
tin
Sn
anode active material elements (Ge, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, Ti)
lithium titanate/Li₄Ti₅O₁₂/lithiated titanium oxide
Li₄Ti₅O₁₂
carbon or graphite material
carbonaceous anode active material (natural graphite, artificial graphite, MCMB, graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon/graphite fiber segments, carbon nano-fiber, graphitic nano-fiber, carbon nano-tube)
nano graphene platelet (NGP)
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
| — |
Duration | 1–2 hours | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 600–1100 °C | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 3 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 200 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 70 nm | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |
silicon
Si
tin
Sn
anode active material elements (Ge, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, Ti)
lithium titanate/Li₄Ti₅O₁₂/lithiated titanium oxide
Li₄Ti₅O₁₂
carbon or graphite material
carbonaceous anode active material (natural graphite, artificial graphite, MCMB, graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon/graphite fiber segments, carbon nano-fiber, graphitic nano-fiber, carbon nano-tube)
nano graphene platelet (NGP)
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
| — |
Duration | 1–2 hours | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 600–1100 °C | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 3 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 200 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 70 nm | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |
silicon
Si
tin
Sn
anode active material elements (Ge, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, Ti)
lithium titanate/Li₄Ti₅O₁₂/lithiated titanium oxide
Li₄Ti₅O₁₂
carbon or graphite material
carbonaceous anode active material (natural graphite, artificial graphite, MCMB, graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon/graphite fiber segments, carbon nano-fiber, graphitic nano-fiber, carbon nano-tube)
nano graphene platelet (NGP)
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
| — |
Duration | 1–2 hours | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 600–1100 °C | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 3 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 200 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 70 nm | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |
silicon
Si
tin
Sn
anode active material elements (Ge, Cd, Sb, Pb, Bi, Zn, Al, Co, Ni, Ti)
lithium titanate/Li₄Ti₅O₁₂/lithiated titanium oxide
Li₄Ti₅O₁₂
carbon or graphite material
carbonaceous anode active material (natural graphite, artificial graphite, MCMB, graphitic coke, meso-phase carbon, hard carbon, soft carbon, polymeric carbon, carbon/graphite fiber segments, carbon nano-fiber, graphitic nano-fiber, carbon nano-tube)
nano graphene platelet (NGP)
FIG. 5(B) depicts a higher-magnification SEM image demonstrating uniform particle sized SEM image of graphene-enhanced particulates containing therein Co 3 0 4 …
FIG. 6 is a SEM image of an anode particulate with tin oxide primary particles embraced by graphene sheets;
| — |
Duration | 1–2 hours | — |
Temperature | 500–1000 °C | — |
Temperature | 0–70 °C | — |
Temperature | 600–1100 °C | — |
Thickness | ≤ 0.34 nm | — |
Thickness | ≤ 10 nm | — |
Thickness | ≤ 3 nm | — |
Thickness | ≤ 500 nm | — |
Thickness | ≤ 200 nm | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 50 nm | — |
Thickness | ≤ 70 nm | — |
Pressure | ≥ 7.4 MPa | — |
Temperature | ≥ 374 °C | — |
Pressure | ≥ 22.1 MPa | — |