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US 2022/0044879 A1Published application
Large-Area Continuous Flexible Free-Standing Electrode And Preparation Method And Use Thereof
AssigneeBeijing University of Chemical Technology
InventorsBin Xu, Mingzhi Li
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Abstract
A method for preparing a large-area continuous flexible free-standing electrode is provided. The method includes: mixing a reduced graphene oxide, porous carbon particles and a solvent, and dispersing the resulting mixture to obtain a mixed slurry; coating the mixed slurry onto a hydrophobic substrate, and drying, to prepare the large-area continuous flexible free-standing electrode.
Claims10
A method for preparing a large-area continuous flexible free-standing electrode, comprising:
- (1) mixing a reduced graphene oxide, porous carbon particles and a solvent, and dispersing the resulting mixture to obtain a mixed slurry, wherein
- the reduced graphene oxide has a sheet number of 2 to 6, and a sheet diameter of 1 to 20 μm,
- the porous carbon particles have a particle size of 1 to 5 μm,
- a mass ratio of the reduced graphene oxide and the porous carbon particles is in the range of (0.05-0.5):1, and
- the mixed slurry has a mass volume concentration of 5 to 20 mg/mL;
- and
- (2) coating the mixed slurry obtained in step (1) onto a hydrophobic substrate, and drying, to obtain the large-area continuous flexible free-standing electrode.
4 more elements
A device comprising:
- a large-area continuous flexible free-standing electrode formed by a method comprising:
- (1) mixing a reduced graphene oxide, porous carbon particles and a solvent, and dispersing the resulting mixture to obtain a mixed slurry, wherein
- the reduced graphene oxide has a sheet number of 2 to 6, and a sheet diameter of 1 to 20 μm,
- the porous carbon particles have a particle size of 1 to 5 μm,
- a mass ratio of the reduced graphene oxide and the porous carbon particles is in the range of (0.05-0.5):1, and
- the mixed slurry has a mass volume concentration of 5 to 20 mg/mL;
- and
- (2) coating the mixed slurry obtained in step (1) onto a hydrophobic substrate, and drying, to obtain the large-area continuous flexible free-standing electrode;
- wherein the large-area continuous flexible free-standing electrode further comprises a three-dimensional conductive network structure which is formed by cross-stacking the reduced graphene oxide and the porous carbon particles.
6 more elements
Dependencies are inferred from the claim text.