Patent
US 8,758,947Graphene-based Battery Electrodes Having Continuous Flow Paths
Jiguang Zhang, Jie Xiao, Jun Liu, Wu Xu et al.
Battelle Memorial Institute·US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 8,758,947Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The metal-air battery of Claim 9, where in the electrolyte comp ri ses L-+th m li thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (Trglyme tnglvme) 11 The metal-air battery of Claim 9, where in the electrolyte comp ri ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 12 (O rigin al) The metal-air battery of Claim 1, further comp nsin g discharge product stored m mesopores ad j acent to the channels 13 (O rigin al) A li thium-air battery hav in g a specific capacity greater than or equal to SOOO mAh/g graphene/carbon and hav in g an air electrode comp risin g graphene, the air electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths through the air electrode, oxygen diffus ing through the channels, and a carbon mate n al mixed with the graphene nanosheets, the carbon mate n al hav in g a mesopore volume greater than 1 cc/g 14 (O rigin al) The li thium-air battery of Claim 13, where in the air electrode further comp n ses a catalyst deposited on surfaces of the electrode, the catalyst comp risin g a transition metal or transition metal oxide. (O rigin al) The li thium-air battery of Claim 13, where in the channels have average diameters between 0 1 and 5 pm 16 (O rigin al) The li thium-air battery of Claim 13, where in at least a portion of the air electrode comp ri ses fluo n nated graphene nanosheets (CF X, where 0 5 < x < 1 5) 3 SVG 13004138.01-15-2014.HQGXXWI₃PXXIFW3.CLM11295939.1.1763.309.2249.392.svg 0.277 1.62 Graph Black and white 17 (O rigin al) The li thium-air battery of Claim 13, further comp risin g an electrolyte comp nsin g ethers, glymes, or comb in ations thereof 18 The li thium-air battery of Claim 17, where in the electrolyte comp n ses L-+hium h thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (-Tglymie triglvme) 19 The li thium-air battery of Claim 17, where in the electrolyte comp n ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 20 (O rigin al) A li thium-based battery hav in g a specific capacity greater than or equal to 8000 mAh/g graphene/carbon and hav in g an electrode comp risin g graphene, the electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths for fluids through the electrode, a carbon mate ri al mixed with the graphene nanosheets, the carbon mate ri al hav in g a mesopore volume greater than 1 cc/g, and an electrolyte comp risin g glymes, ethers, or both 21 -
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
Layer stacks claimed or described, ordered top of device to substrate.
metal-air battery air electrode
lithium-air battery
Materials described outside the worked examples.
graphene nanosheets
carbon material with mesopore volume greater than 1 cc/g
fluorinated graphene nanosheets (CFx, 0.5 < x < 1.5)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
BET surface area of as-received graphene | 590.3 m2/g | graphene nanosheets |
Patent
Atlas literature
Patent
US 8,758,947Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The metal-air battery of Claim 9, where in the electrolyte comp ri ses L-+th m li thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (Trglyme tnglvme) 11 The metal-air battery of Claim 9, where in the electrolyte comp ri ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 12 (O rigin al) The metal-air battery of Claim 1, further comp nsin g discharge product stored m mesopores ad j acent to the channels 13 (O rigin al) A li thium-air battery hav in g a specific capacity greater than or equal to SOOO mAh/g graphene/carbon and hav in g an air electrode comp risin g graphene, the air electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths through the air electrode, oxygen diffus ing through the channels, and a carbon mate n al mixed with the graphene nanosheets, the carbon mate n al hav in g a mesopore volume greater than 1 cc/g 14 (O rigin al) The li thium-air battery of Claim 13, where in the air electrode further comp n ses a catalyst deposited on surfaces of the electrode, the catalyst comp risin g a transition metal or transition metal oxide. (O rigin al) The li thium-air battery of Claim 13, where in the channels have average diameters between 0 1 and 5 pm 16 (O rigin al) The li thium-air battery of Claim 13, where in at least a portion of the air electrode comp ri ses fluo n nated graphene nanosheets (CF X, where 0 5 < x < 1 5) 3 SVG 13004138.01-15-2014.HQGXXWI₃PXXIFW3.CLM11295939.1.1763.309.2249.392.svg 0.277 1.62 Graph Black and white 17 (O rigin al) The li thium-air battery of Claim 13, further comp risin g an electrolyte comp nsin g ethers, glymes, or comb in ations thereof 18 The li thium-air battery of Claim 17, where in the electrolyte comp n ses L-+hium h thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (-Tglymie triglvme) 19 The li thium-air battery of Claim 17, where in the electrolyte comp n ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 20 (O rigin al) A li thium-based battery hav in g a specific capacity greater than or equal to 8000 mAh/g graphene/carbon and hav in g an electrode comp risin g graphene, the electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths for fluids through the electrode, a carbon mate ri al mixed with the graphene nanosheets, the carbon mate ri al hav in g a mesopore volume greater than 1 cc/g, and an electrolyte comp risin g glymes, ethers, or both 21 -
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
Layer stacks claimed or described, ordered top of device to substrate.
metal-air battery air electrode
lithium-air battery
Materials described outside the worked examples.
graphene nanosheets
carbon material with mesopore volume greater than 1 cc/g
fluorinated graphene nanosheets (CFx, 0.5 < x < 1.5)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
BET surface area of as-received graphene | 590.3 m2/g | graphene nanosheets |
Patent
Atlas literature
Patent
US 8,758,947Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The metal-air battery of Claim 9, where in the electrolyte comp ri ses L-+th m li thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (Trglyme tnglvme) 11 The metal-air battery of Claim 9, where in the electrolyte comp ri ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 12 (O rigin al) The metal-air battery of Claim 1, further comp nsin g discharge product stored m mesopores ad j acent to the channels 13 (O rigin al) A li thium-air battery hav in g a specific capacity greater than or equal to SOOO mAh/g graphene/carbon and hav in g an air electrode comp risin g graphene, the air electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths through the air electrode, oxygen diffus ing through the channels, and a carbon mate n al mixed with the graphene nanosheets, the carbon mate n al hav in g a mesopore volume greater than 1 cc/g 14 (O rigin al) The li thium-air battery of Claim 13, where in the air electrode further comp n ses a catalyst deposited on surfaces of the electrode, the catalyst comp risin g a transition metal or transition metal oxide. (O rigin al) The li thium-air battery of Claim 13, where in the channels have average diameters between 0 1 and 5 pm 16 (O rigin al) The li thium-air battery of Claim 13, where in at least a portion of the air electrode comp ri ses fluo n nated graphene nanosheets (CF X, where 0 5 < x < 1 5) 3 SVG 13004138.01-15-2014.HQGXXWI₃PXXIFW3.CLM11295939.1.1763.309.2249.392.svg 0.277 1.62 Graph Black and white 17 (O rigin al) The li thium-air battery of Claim 13, further comp risin g an electrolyte comp nsin g ethers, glymes, or comb in ations thereof 18 The li thium-air battery of Claim 17, where in the electrolyte comp n ses L-+hium h thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (-Tglymie triglvme) 19 The li thium-air battery of Claim 17, where in the electrolyte comp n ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 20 (O rigin al) A li thium-based battery hav in g a specific capacity greater than or equal to 8000 mAh/g graphene/carbon and hav in g an electrode comp risin g graphene, the electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths for fluids through the electrode, a carbon mate ri al mixed with the graphene nanosheets, the carbon mate ri al hav in g a mesopore volume greater than 1 cc/g, and an electrolyte comp risin g glymes, ethers, or both 21 -
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
Layer stacks claimed or described, ordered top of device to substrate.
metal-air battery air electrode
lithium-air battery
Materials described outside the worked examples.
graphene nanosheets
carbon material with mesopore volume greater than 1 cc/g
fluorinated graphene nanosheets (CFx, 0.5 < x < 1.5)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
BET surface area of as-received graphene | 590.3 m2/g | graphene nanosheets |
Patent
Atlas literature
Patent
US 8,758,947Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The metal-air battery of Claim 9, where in the electrolyte comp ri ses L-+th m li thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (Trglyme tnglvme) 11 The metal-air battery of Claim 9, where in the electrolyte comp ri ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 12 (O rigin al) The metal-air battery of Claim 1, further comp nsin g discharge product stored m mesopores ad j acent to the channels 13 (O rigin al) A li thium-air battery hav in g a specific capacity greater than or equal to SOOO mAh/g graphene/carbon and hav in g an air electrode comp risin g graphene, the air electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths through the air electrode, oxygen diffus ing through the channels, and a carbon mate n al mixed with the graphene nanosheets, the carbon mate n al hav in g a mesopore volume greater than 1 cc/g 14 (O rigin al) The li thium-air battery of Claim 13, where in the air electrode further comp n ses a catalyst deposited on surfaces of the electrode, the catalyst comp risin g a transition metal or transition metal oxide. (O rigin al) The li thium-air battery of Claim 13, where in the channels have average diameters between 0 1 and 5 pm 16 (O rigin al) The li thium-air battery of Claim 13, where in at least a portion of the air electrode comp ri ses fluo n nated graphene nanosheets (CF X, where 0 5 < x < 1 5) 3 SVG 13004138.01-15-2014.HQGXXWI₃PXXIFW3.CLM11295939.1.1763.309.2249.392.svg 0.277 1.62 Graph Black and white 17 (O rigin al) The li thium-air battery of Claim 13, further comp risin g an electrolyte comp nsin g ethers, glymes, or comb in ations thereof 18 The li thium-air battery of Claim 17, where in the electrolyte comp n ses L-+hium h thium bis(t ri fluoromethylsulfonyl) i mide (LiTFSI) m tri (ethylene glycol) dimethyl ether (-Tglymie triglvme) 19 The li thium-air battery of Claim 17, where in the electrolyte comp n ses LiTFSI m di(ethylene glycol) dibutyl ether (or But-y butvl diglyme) 20 (O rigin al) A li thium-based battery hav in g a specific capacity greater than or equal to 8000 mAh/g graphene/carbon and hav in g an electrode comp risin g graphene, the electrode comp risin g randomly arranged graphene nanosheets form in g a network of channels defi ni ng cont in uous flow paths for fluids through the electrode, a carbon mate ri al mixed with the graphene nanosheets, the carbon mate ri al hav in g a mesopore volume greater than 1 cc/g, and an electrolyte comp risin g glymes, ethers, or both 21 -
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
canceled
Layer stacks claimed or described, ordered top of device to substrate.
metal-air battery air electrode
lithium-air battery
Materials described outside the worked examples.
graphene nanosheets
carbon material with mesopore volume greater than 1 cc/g
fluorinated graphene nanosheets (CFx, 0.5 < x < 1.5)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
BET surface area of as-received graphene | 590.3 m2/g | graphene nanosheets |
lithium-based battery with graphene electrode
CFx
LiTFSI in tri(ethylene glycol) dimethyl ether (Triglyme)
LiTFSI in di(ethylene glycol) dibutyl ether (butyl diglyme)
transition metal or transition metal oxide catalyst
Li₂O₂
LiTFSI
Ketjenblack
glymes/ethers electrolyte
pore volume of as-received graphene |
| 4 cc/g |
graphene nanosheets |
average pore size of as-received graphene | 27.1 nm | graphene nanosheets |
BET surface area of graphene-based air electrode | 186.2 m2/g | graphene nanosheets |
pore volume of graphene-based air electrode | 0.84 cc/g | graphene nanosheets |
average pore size of graphene-based air electrode | 18.1 nm | graphene nanosheets |
specific discharge capacity of Li-air cell with graphene air electrode (pure oxygen, discharged to 2.6 V) | 8000 mAh/g | — |
specific discharge capacity of Li-air pouch cell with graphene air electrode in ambient conditions | 5093 mAh/g carbon | — |
specific capacity of Li-air cell using LiTFSI in Triglyme electrolyte | 15000 mAh/g | — |
lithium-based battery with graphene electrode
CFx
LiTFSI in tri(ethylene glycol) dimethyl ether (Triglyme)
LiTFSI in di(ethylene glycol) dibutyl ether (butyl diglyme)
transition metal or transition metal oxide catalyst
Li₂O₂
LiTFSI
Ketjenblack
glymes/ethers electrolyte
pore volume of as-received graphene |
| 4 cc/g |
graphene nanosheets |
average pore size of as-received graphene | 27.1 nm | graphene nanosheets |
BET surface area of graphene-based air electrode | 186.2 m2/g | graphene nanosheets |
pore volume of graphene-based air electrode | 0.84 cc/g | graphene nanosheets |
average pore size of graphene-based air electrode | 18.1 nm | graphene nanosheets |
specific discharge capacity of Li-air cell with graphene air electrode (pure oxygen, discharged to 2.6 V) | 8000 mAh/g | — |
specific discharge capacity of Li-air pouch cell with graphene air electrode in ambient conditions | 5093 mAh/g carbon | — |
specific capacity of Li-air cell using LiTFSI in Triglyme electrolyte | 15000 mAh/g | — |
lithium-based battery with graphene electrode
CFx
LiTFSI in tri(ethylene glycol) dimethyl ether (Triglyme)
LiTFSI in di(ethylene glycol) dibutyl ether (butyl diglyme)
transition metal or transition metal oxide catalyst
Li₂O₂
LiTFSI
Ketjenblack
glymes/ethers electrolyte
pore volume of as-received graphene |
| 4 cc/g |
graphene nanosheets |
average pore size of as-received graphene | 27.1 nm | graphene nanosheets |
BET surface area of graphene-based air electrode | 186.2 m2/g | graphene nanosheets |
pore volume of graphene-based air electrode | 0.84 cc/g | graphene nanosheets |
average pore size of graphene-based air electrode | 18.1 nm | graphene nanosheets |
specific discharge capacity of Li-air cell with graphene air electrode (pure oxygen, discharged to 2.6 V) | 8000 mAh/g | — |
specific discharge capacity of Li-air pouch cell with graphene air electrode in ambient conditions | 5093 mAh/g carbon | — |
specific capacity of Li-air cell using LiTFSI in Triglyme electrolyte | 15000 mAh/g | — |
lithium-based battery with graphene electrode
CFx
LiTFSI in tri(ethylene glycol) dimethyl ether (Triglyme)
LiTFSI in di(ethylene glycol) dibutyl ether (butyl diglyme)
transition metal or transition metal oxide catalyst
Li₂O₂
LiTFSI
Ketjenblack
glymes/ethers electrolyte
pore volume of as-received graphene |
| 4 cc/g |
graphene nanosheets |
average pore size of as-received graphene | 27.1 nm | graphene nanosheets |
BET surface area of graphene-based air electrode | 186.2 m2/g | graphene nanosheets |
pore volume of graphene-based air electrode | 0.84 cc/g | graphene nanosheets |
average pore size of graphene-based air electrode | 18.1 nm | graphene nanosheets |
specific discharge capacity of Li-air cell with graphene air electrode (pure oxygen, discharged to 2.6 V) | 8000 mAh/g | — |
specific discharge capacity of Li-air pouch cell with graphene air electrode in ambient conditions | 5093 mAh/g carbon | — |
specific capacity of Li-air cell using LiTFSI in Triglyme electrolyte | 15000 mAh/g | — |