Graphene/organic thin film composite current collector, preparation method thereof, electrochemical electrode and electrochemical battery or capacitor
An organic thin film and graphene technology, applied in the field of synthesis and preparation of new materials, can solve problems such as affecting the service life of energy storage devices, low energy density of energy storage devices, and reducing the weight ratio of electrode materials, and achieves low cost, improved power density, The effect of easy large-scale industrial production
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] A preparation method of a graphene / organic film composite current collector, comprising the following steps:
[0034] (1) Provide a PET film with a thickness of 6 μm, soak it with 1mol / L HCL, and then wash it with ethanol three times;
[0035] (2) Take graphite oxide, add it to deionized water, and ultrasonically disperse for 0.5 h to obtain a graphene oxide suspension with a concentration of 0.25 mg / mL, then slowly add 0.1 mol / L sodium hydroxide solution to adjust the pH to 10, and then , add hydrazine hydrate solution (in N 2 h 4 mass meter, the mass concentration is 85%), reacted at 120°C for 12 hours, and filtered with suction to obtain graphene, and added the graphene to DMSO to obtain a graphene suspension;
[0036] Among them, the hydrazine hydrate solution by N 2 h 4 The mass ratio with graphite oxide is 1:10 to add; DMSO solvent accounts for 10% of the total mass of the graphene suspension;
[0037] (3) Evenly coat the graphene suspension on the PET film, ...
Embodiment 2
[0045] A preparation method of a graphene / organic film composite current collector, comprising the following steps:
[0046] (1) Provide a PEN film with a thickness of 6 μm, soak it with 1mol / L HCL, and then wash it with ethanol three times;
[0047] (2) Take graphite oxide, add it to ethanol, and ultrasonically disperse for 0.5h to obtain a graphene oxide suspension with a concentration of 1mg / mL, then slowly add 0.1mol / L ammonia solution to adjust the pH to 11, and then add hydrazine hydrate solution (in N 2 h 4 mass, the mass concentration is 85%), reacted at 90°C for 18 hours, and suction filtered to obtain graphene, which was added to N-methylpyrrolidone (NMP) to obtain a graphene suspension;
[0048] Among them, the hydrazine hydrate solution by N 2 h 4 The mass ratio with graphite oxide is 5:10; NMP solvent accounts for 20% of the total mass of the graphene suspension;
[0049] (3) Evenly coat the graphene suspension on the PEN film, dry it at 80°C for 10 hours, pr...
Embodiment 3
[0052] A preparation method of a graphene / organic film composite current collector, comprising the following steps:
[0053] (1) Provide a PC film with a thickness of 20 μm, soak it with 1mol / L HCL, and then wash it twice with ethanol;
[0054] (2) Take graphite oxide, add it to n-butanol, and disperse it ultrasonically for 1 hour to obtain a graphene oxide suspension with a concentration of 0.5 mg / mL, then slowly add 0.1 mol / L potassium hydroxide solution to adjust the pH to 11, and then , add hydrazine hydrate solution (in N 2 h 4 Mass meter, the mass concentration is 85%), reacted at 100°C for 12 hours, and suction filtered to obtain graphene, which was added to N,N-dimethylformamide (DMF) to obtain graphene suspension;
[0055] Among them, the hydrazine hydrate solution by N 2 h 4 The mass ratio with graphite oxide is 7:10 to add; DMF solvent accounts for 30% of the total mass of the graphene suspension;
[0056] (3) Evenly coat the graphene suspension on the PC fil...
PUM
Property | Measurement | Unit |
---|---|---|
thickness | aaaaa | aaaaa |
thickness | aaaaa | aaaaa |
thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com