A preparation method of 3D printing flexible solid-state supercapacitor
A supercapacitor and 3D printing technology, which is applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of complex steps and poor controllability, and achieve the effects of simple operation, diverse shapes, and high yield
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Embodiment 1
[0039] A method for preparing a 3D printed flexible solid-state supercapacitor, the preparation process is as follows:
[0040] 1) Add 2 g of PVP and 0.2 g of aniline monomer into 250 mL of water in sequence and stir; then, stir the mixed solution at room temperature for 1 h, add hydrochloric acid to adjust the pH of the solution to 1, stir the mixed solution at room temperature for 35 min, and add 0.6 g of ammonium persulfate, continue to react for 2h;
[0041] 2) Preparation of graphene oxide / polyaniline ink: Add 0.2g of graphene oxide and 0.1g of polyaniline to 6mL of absolute ethanol, ultrasonicate for 1h, add 0.05g of EGB and 0.15g of polyvinyl butyral PVB to form The solution was mixed, sonicated for 1 hour, and the solution was heated in an oil bath at 90° C. to obtain a graphene oxide / polyaniline ink with a solid content of 20 wt %;
[0042] 3) Preparation of ionic liquid-based photocurable solid electrolyte: 2.4 g of ionic liquid 1-butyl-3-methylimidazolium tetrafluo...
Embodiment 2
[0046] A method for preparing a 3D printed flexible solid-state supercapacitor, the preparation process is as follows:
[0047] 1) Add 4 g of PVP and 0.4 g of aniline monomer into 500 mL of water in sequence and stir; then, stir the mixed solution at room temperature for 1 h, add hydrochloric acid to adjust the pH of the solution to 1, stir the mixed solution at room temperature for 35 min, add 0.6 g of ammonium persulfate, continue to react for 2h;
[0048] 2) Preparation of graphene oxide / polyaniline ink: Add 0.4g of graphene oxide and 0.2g of polyaniline into 12mL of absolute ethanol, sonicate for 1h, add EGB 0.1g and PVB 0.3g to form a mixed solution, and sonicate for 1h , heating the above solution in an oil bath at 90°C to obtain a graphene oxide / polyaniline ink with a solid content of 20wt%;
[0049] 3) Preparation of ionic liquid-based photocurable solid electrolyte: 4.8 g of ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate and 1.6 g of ETPTA were added to 3...
Embodiment 3
[0053] A method for preparing a 3D printed flexible solid-state supercapacitor, the preparation process is as follows:
[0054] 1) Add 6 g of PVP and 0.6 g of aniline monomer into 750 mL of water in sequence and stir; then, stir the mixed solution at room temperature for 0.8 h, add hydrochloric acid to adjust the pH of the solution to 1, stir the mixed solution at room temperature for 30 min, add 1.8g of ammonium persulfate, continue to react for 2h;
[0055] 2) Preparation of graphene oxide / polyaniline ink: Add 0.6g of graphene oxide and 0.3g of polyaniline into 18mL of absolute ethanol, sonicate for 1h, add EGB 0.15g and PVB 0.45g to form a mixed solution, and sonicate for 1h , heating the above solution in an oil bath at 85° C. to obtain a graphene oxide / polyaniline ink with a solid content of 20 wt %;
[0056] 3) Preparation of ionic liquid-based photocurable solid electrolyte: 7.2 g of ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate and 0.8 g of ETPTA were add...
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