Patent
US 8,951,675GRAPHENE CURRENT COLLECTORS IN BATTERIES FOR PORTABLE ELECTRONIC DEVICES
Ramesh C. Bhardwaj, Richard M. Mank
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 8,951,675Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a cross-sectional view of a battery cell in accordance with the disclosed embodiments. [0013]
FIG. 2 shows a top-down view of a battery cell in accordance with the disclosed embodiments. [0014]
FIG. 3 shows a set of layers for a battery cell in accordance with 10 the disclosed embodiments. [0015]
FIG. 4 shows a set of layers for a battery cell in accordance with the disclosed embodiments. [0016]
FIG. 5 shows a portable electronic device in accordance with the disclosed embodiments. 15 [0017] In the figures, like reference numerals refer to the same …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 1. (Cu rr ently Amended) A battery cell, comprising: 2 a cathode cu rr ent collector comprising a layer of polyamide covered on 3 eae h- each side sid e by only one graphene monolayer, wherein the only one 4 graphene monolayer on each side of the pol y amide la yer i s sandwiched by the 5 polyamide layer and a cathode active material, and wherein the only one graphene 6 monolayers from each side of the polyamide la yer ef-graphen e-are connected with 7 each other at the end of the polyamide layer to form a continuous current 8 collector; 9 a cathode active material; 10 an electrolyte; 11 an anode active material; and 12 an anode cu rr ent collector.
1 3. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a nonconducting substrate.
1 8. The battery cell of claim 1, 2 wherein the polyamide layer is about two microns thick.
1 10. The battery cell of claim 1, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite.
1 13. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a non-conducting substrate.
1 2.. canceled
1 7.. canceled
1 9.. canceled
1 11. (Cu rr ently Amended) A portable electronic device, comprising: 2 a set of components powered by a battery pack; and 3 the battery pack, comprising: 4 a battery cell, comprising: 5 a cathode cu rr ent collector comprising a layer of polyamide 6 covered on each side by only one graphene monolayer, wherein the 7 only one graphene monolayer on each side of the pol y amide lay er 8 is sandwiched by the polyamide layer and a cathode active 9 material, and wherein the only one graphene monolayer s of 10 gaphen efrom each side of the polyamide la yer are connected with 3 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 11 each other at the end of the polyamide layer to form a continuous 12 cu rr ent collector; 13 a cathode active material; 14 an electrolyte; 15 an anode active material; and 16 an anode cu rr ent collector.
1 18. The portable electronic device of claim 11, 2 wherein the polyamide layer is about two microns thick.
4 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 1 20. The portable electronic device of claim 11, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite. 5 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc
1 12.. canceled
1 17.. canceled
1 19.. canceled
Layer stacks claimed or described, ordered top of device to substrate.
battery cell with graphene/polyamide cathode current collector
Materials described outside the worked examples.
graphene monolayer
polyamide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 16–20 µm | — |
Thickness |
Patent
Atlas literature
Patent
US 8,951,675Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a cross-sectional view of a battery cell in accordance with the disclosed embodiments. [0013]
FIG. 2 shows a top-down view of a battery cell in accordance with the disclosed embodiments. [0014]
FIG. 3 shows a set of layers for a battery cell in accordance with 10 the disclosed embodiments. [0015]
FIG. 4 shows a set of layers for a battery cell in accordance with the disclosed embodiments. [0016]
FIG. 5 shows a portable electronic device in accordance with the disclosed embodiments. 15 [0017] In the figures, like reference numerals refer to the same …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 1. (Cu rr ently Amended) A battery cell, comprising: 2 a cathode cu rr ent collector comprising a layer of polyamide covered on 3 eae h- each side sid e by only one graphene monolayer, wherein the only one 4 graphene monolayer on each side of the pol y amide la yer i s sandwiched by the 5 polyamide layer and a cathode active material, and wherein the only one graphene 6 monolayers from each side of the polyamide la yer ef-graphen e-are connected with 7 each other at the end of the polyamide layer to form a continuous current 8 collector; 9 a cathode active material; 10 an electrolyte; 11 an anode active material; and 12 an anode cu rr ent collector.
1 3. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a nonconducting substrate.
1 8. The battery cell of claim 1, 2 wherein the polyamide layer is about two microns thick.
1 10. The battery cell of claim 1, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite.
1 13. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a non-conducting substrate.
1 2.. canceled
1 7.. canceled
1 9.. canceled
1 11. (Cu rr ently Amended) A portable electronic device, comprising: 2 a set of components powered by a battery pack; and 3 the battery pack, comprising: 4 a battery cell, comprising: 5 a cathode cu rr ent collector comprising a layer of polyamide 6 covered on each side by only one graphene monolayer, wherein the 7 only one graphene monolayer on each side of the pol y amide lay er 8 is sandwiched by the polyamide layer and a cathode active 9 material, and wherein the only one graphene monolayer s of 10 gaphen efrom each side of the polyamide la yer are connected with 3 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 11 each other at the end of the polyamide layer to form a continuous 12 cu rr ent collector; 13 a cathode active material; 14 an electrolyte; 15 an anode active material; and 16 an anode cu rr ent collector.
1 18. The portable electronic device of claim 11, 2 wherein the polyamide layer is about two microns thick.
4 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 1 20. The portable electronic device of claim 11, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite. 5 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc
1 12.. canceled
1 17.. canceled
1 19.. canceled
Layer stacks claimed or described, ordered top of device to substrate.
battery cell with graphene/polyamide cathode current collector
Materials described outside the worked examples.
graphene monolayer
polyamide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 16–20 µm | — |
Thickness |
Patent
Atlas literature
Patent
US 8,951,675Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a cross-sectional view of a battery cell in accordance with the disclosed embodiments. [0013]
FIG. 2 shows a top-down view of a battery cell in accordance with the disclosed embodiments. [0014]
FIG. 3 shows a set of layers for a battery cell in accordance with 10 the disclosed embodiments. [0015]
FIG. 4 shows a set of layers for a battery cell in accordance with the disclosed embodiments. [0016]
FIG. 5 shows a portable electronic device in accordance with the disclosed embodiments. 15 [0017] In the figures, like reference numerals refer to the same …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 1. (Cu rr ently Amended) A battery cell, comprising: 2 a cathode cu rr ent collector comprising a layer of polyamide covered on 3 eae h- each side sid e by only one graphene monolayer, wherein the only one 4 graphene monolayer on each side of the pol y amide la yer i s sandwiched by the 5 polyamide layer and a cathode active material, and wherein the only one graphene 6 monolayers from each side of the polyamide la yer ef-graphen e-are connected with 7 each other at the end of the polyamide layer to form a continuous current 8 collector; 9 a cathode active material; 10 an electrolyte; 11 an anode active material; and 12 an anode cu rr ent collector.
1 3. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a nonconducting substrate.
1 8. The battery cell of claim 1, 2 wherein the polyamide layer is about two microns thick.
1 10. The battery cell of claim 1, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite.
1 13. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a non-conducting substrate.
1 2.. canceled
1 7.. canceled
1 9.. canceled
1 11. (Cu rr ently Amended) A portable electronic device, comprising: 2 a set of components powered by a battery pack; and 3 the battery pack, comprising: 4 a battery cell, comprising: 5 a cathode cu rr ent collector comprising a layer of polyamide 6 covered on each side by only one graphene monolayer, wherein the 7 only one graphene monolayer on each side of the pol y amide lay er 8 is sandwiched by the polyamide layer and a cathode active 9 material, and wherein the only one graphene monolayer s of 10 gaphen efrom each side of the polyamide la yer are connected with 3 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 11 each other at the end of the polyamide layer to form a continuous 12 cu rr ent collector; 13 a cathode active material; 14 an electrolyte; 15 an anode active material; and 16 an anode cu rr ent collector.
1 18. The portable electronic device of claim 11, 2 wherein the polyamide layer is about two microns thick.
4 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 1 20. The portable electronic device of claim 11, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite. 5 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc
1 12.. canceled
1 17.. canceled
1 19.. canceled
Layer stacks claimed or described, ordered top of device to substrate.
battery cell with graphene/polyamide cathode current collector
Materials described outside the worked examples.
graphene monolayer
polyamide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 16–20 µm | — |
Thickness |
Patent
Atlas literature
Patent
US 8,951,675Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 shows a cross-sectional view of a battery cell in accordance with the disclosed embodiments. [0013]
FIG. 2 shows a top-down view of a battery cell in accordance with the disclosed embodiments. [0014]
FIG. 3 shows a set of layers for a battery cell in accordance with 10 the disclosed embodiments. [0015]
FIG. 4 shows a set of layers for a battery cell in accordance with the disclosed embodiments. [0016]
FIG. 5 shows a portable electronic device in accordance with the disclosed embodiments. 15 [0017] In the figures, like reference numerals refer to the same …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
1 1. (Cu rr ently Amended) A battery cell, comprising: 2 a cathode cu rr ent collector comprising a layer of polyamide covered on 3 eae h- each side sid e by only one graphene monolayer, wherein the only one 4 graphene monolayer on each side of the pol y amide la yer i s sandwiched by the 5 polyamide layer and a cathode active material, and wherein the only one graphene 6 monolayers from each side of the polyamide la yer ef-graphen e-are connected with 7 each other at the end of the polyamide layer to form a continuous current 8 collector; 9 a cathode active material; 10 an electrolyte; 11 an anode active material; and 12 an anode cu rr ent collector.
1 3. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a nonconducting substrate.
1 8. The battery cell of claim 1, 2 wherein the polyamide layer is about two microns thick.
1 10. The battery cell of claim 1, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite.
1 13. The battery cell of claim 1, wherein the 2 cathode current collector is disposed on a non-conducting substrate.
1 2.. canceled
1 7.. canceled
1 9.. canceled
1 11. (Cu rr ently Amended) A portable electronic device, comprising: 2 a set of components powered by a battery pack; and 3 the battery pack, comprising: 4 a battery cell, comprising: 5 a cathode cu rr ent collector comprising a layer of polyamide 6 covered on each side by only one graphene monolayer, wherein the 7 only one graphene monolayer on each side of the pol y amide lay er 8 is sandwiched by the polyamide layer and a cathode active 9 material, and wherein the only one graphene monolayer s of 10 gaphen efrom each side of the polyamide la yer are connected with 3 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 11 each other at the end of the polyamide layer to form a continuous 12 cu rr ent collector; 13 a cathode active material; 14 an electrolyte; 15 an anode active material; and 16 an anode cu rr ent collector.
1 18. The portable electronic device of claim 11, 2 wherein the polyamide layer is about two microns thick.
4 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc 1 20. The portable electronic device of claim 11, 2 wherein the cathode active material comprises a lithium compound, and 3 wherein the anode active material comprises graphite. 5 HC Amendment C APL-P 1 174 1US 1 (non-final OAR).doc
1 12.. canceled
1 17.. canceled
1 19.. canceled
Layer stacks claimed or described, ordered top of device to substrate.
battery cell with graphene/polyamide cathode current collector
Materials described outside the worked examples.
graphene monolayer
polyamide
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 16–20 µm | — |
Thickness |
portable electronic device battery pack with graphene/polyamide cathode current collector
solid-state battery cell
cathode active material
solid electrolyte
lithium phosphorus oxynitride (LiPON)
LiPON
lithium compound
lithium metal
Li
graphite
mica
polyether ether ketone (PEEK)
platinum
Pt
gold
Au
copper
Cu
| 10–15 µm |
| — |
portable electronic device battery pack with graphene/polyamide cathode current collector
solid-state battery cell
cathode active material
solid electrolyte
lithium phosphorus oxynitride (LiPON)
LiPON
lithium compound
lithium metal
Li
graphite
mica
polyether ether ketone (PEEK)
platinum
Pt
gold
Au
copper
Cu
| 10–15 µm |
| — |
portable electronic device battery pack with graphene/polyamide cathode current collector
solid-state battery cell
cathode active material
solid electrolyte
lithium phosphorus oxynitride (LiPON)
LiPON
lithium compound
lithium metal
Li
graphite
mica
polyether ether ketone (PEEK)
platinum
Pt
gold
Au
copper
Cu
| 10–15 µm |
| — |
portable electronic device battery pack with graphene/polyamide cathode current collector
solid-state battery cell
cathode active material
solid electrolyte
lithium phosphorus oxynitride (LiPON)
LiPON
lithium compound
lithium metal
Li
graphite
mica
polyether ether ketone (PEEK)
platinum
Pt
gold
Au
copper
Cu
| 10–15 µm |
| — |