Method for constructing flexible super capacitor
A technology of supercapacitor and construction method, applied in the field of construction of planar graphene-based thin film supercapacitor, can solve the problems of time-consuming, time-consuming and complex, and not environmentally friendly, and achieve good electrochemical performance, good bending performance, and time-consuming short effect
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Embodiment 1
[0033] A method for constructing a capacitor, comprising the steps of:
[0034] 1. Add graphite oxide to deionized water at a mass ratio of graphite oxide to deionized water of 1:1000, and stir it magnetically or manually for 0.8 hours until the solution is a stable and homogeneous graphene oxide hydrosol solution to obtain product A ;
[0035] 2. Product A was left to stand at 60-80°C for 0.8h until a complete graphene oxide film was formed on the surface of the graphene oxide hydrosol to obtain product B;
[0036] 3. Adopting a flexible film as a substrate, depositing product B on the substrate, drying to obtain product C; the flexible film is polyethylene terephthalate, i.e. a PET substrate;
[0037] 4. Add hydrogen iodide solution with a mass fraction of 57% to product C, reduce at 15-80°C for 28 hours, wash with ethanol and distilled water, and obtain product D;
[0038] 5. Put product D into 3mmol / L potassium permanganate and soak for 28 hours, wash with ethanol and di...
Embodiment 2
[0044] A method for constructing a capacitor, comprising the steps of:
[0045] 1. Add graphite oxide to deionized water at a mass ratio of graphite oxide to deionized water of 2:1000, stir magnetically or manually shake for 1 hour until the solution is a stable and homogeneous graphene oxide hydrosol solution to obtain product A;
[0046] 2. Product A was left to stand at 60-80°C for 1 hour until a complete graphene oxide film was formed on the surface of the graphene oxide hydrosol to obtain product B;
[0047] 3. Using a flexible film as a substrate, deposit product B on the substrate, and dry to obtain product C; the flexible film is polydimethylsiloxane, that is, a PDMS substrate;
[0048] 4. Add a hydrogen iodide solution with a mass fraction of 58% to product C, reduce it at 15-80°C for 48 hours, and wash with ethanol and distilled water to obtain product D;
[0049] 5. Put product D into 5mmol / L potassium permanganate and soak for 48 hours, and after cleaning with eth...
Embodiment 3
[0053] A method for constructing a capacitor, comprising the steps of:
[0054] 1. Add graphite oxide to deionized water at a mass ratio of graphite oxide to deionized water of 0.5:1000, and stir magnetically or manually for 0.5 hours until the solution is a stable and homogeneous graphene oxide hydrosol solution to obtain product A ;
[0055] 2. Product A was left to stand at 60-80°C for 0.5h until a complete graphene oxide film was formed on the surface of the graphene oxide hydrosol to obtain product B;
[0056] 3. Adopting a flexible film as a substrate, depositing product B on the substrate, drying to obtain product C; the flexible film is polyethylene terephthalate, i.e. a PET substrate;
[0057] 4. Add hydrogen iodide solution with a mass fraction of 55% to product C, reduce at 15-80°C for 3 hours, and wash with ethanol and distilled water to obtain product D;
[0058] 5. Put product D into 0.5mmol / L potassium permanganate and soak for 5 hours, and after cleaning with...
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