Preparation method of low-cost all-solid-state multilevel structure transparent flexible supercapacitor

Abstract

The invention provides a preparation method of a low-cost all-solid-state multilevel structure transparent flexible supercapacitor. The method comprises the following steps of 1, preparation of a transparent flexible current collector; 2, preparation of defect-rich oxidized graphene / carbon nanotube-based composite dispersion liquid; 3, preparation of defect-rich oxidized graphene / carbon nanotube nanosheet-based coating pole piece; 4, preparation of defect-rich graphene / carbon nanotube nanosheet-based coating pole piece; 5, preparation of transparent solid-state electrolyte; and 6, preparationof a double electrode layer transparent flexible supercapacitor of a sandwich structure. Finally, the double electrode layer transparent flexible supercapacitor of the sandwich structure is acquired.The method provided by the invention is simple in technological process, low in cost and convenient to achieve commercial application.

Description

Technical field:

[0001] The invention relates to the field of preparation of new materials, in particular to a method for preparing a low-cost all-solid-state multilevel transparent flexible supercapacitor. Background technique

[0002] With the continuous development of wearable and portable multimedia electronic devices, higher requirements are put forward for flexible and transparent electronic devices. "Transparent and flexible" is already a promising direction of change for future consumer electronics. In order to realize the commercialization of flexible display devices with ultra-thin screens, its power supply components also need to be flexible and transparent. As an indispensable and important part, transparent flexible electronic devices have potential commercial impact and huge market value. , has become one of the research hotspots in the fields of materials, electronics, communication and other sciences. As a new type of energy storage device, transparent flexi...

Examples

Embodiment 1

[0037] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on a 10cm x 10cm PET substrate with a homogenizer, the rotation speed is 4000rpm, the spin-coating time is 40s, and then heated at 120°C for 5min with an electric heating plate, A transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0038] (2) get 50ml concentration and be that the graphene oxide solution of 5mg / ml is mixed with the hydrogen peroxide solution that 15ml mass fraction is 30%, 100 ℃ of stirring 5h, then the mixed solution is dialyzed (is about to above-mentioned mixed solution is poured in the dialysis bag, Then immerse the dialysis bag in deionized water and perform dialysis for 48 hours. The dialysis bag is specifically "MWCO: 1500D". The following dialysis steps are the same), and then pour out the solution in the dialysis bag to obtain a defect-rich graphene oxide solution with pH=7 (The sol...

Embodiment 2

[0045] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on a 10cm x 10cm PET substrate with a homogenizer, the rotation speed is 4000rpm, the spin-coating time is 40s, and then heated at 120°C for 5min with an electric heating plate, A transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0046] (2) Take 50ml of graphene oxide solution with a concentration of 5mg / ml and 15ml of hydrogen peroxide solution with a mass fraction of 30%, mix them, stir at 100°C for 5h, then dialyze the mixed solution, then pour out the solution in the dialysis bag, A defect-rich graphene oxide solution with a pH of 7 was obtained (the volume of the solution remained unchanged before and after dialysis). Add 0.2g carbon nanotube and 0.1g polystyrene microspheres (the particle diameter of microsphere is 30nm) to above-mentioned defect-rich graphene oxide solution again afterwards, stir 5h...

Embodiment 3

[0052] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on a 10cm x 10cm PET substrate with a homogenizer, the rotation speed is 4000rpm, and the spin-coating time is 40s, and then heated at 120°C for 5min with an electric heating plate, A transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0053] (2) Take 50ml of graphene oxide solution with a concentration of 5mg / ml and 15ml of hydrogen peroxide solution with a mass fraction of 30%, mix them, stir at 100°C for 5h, then dialyze the mixed solution, then pour out the solution in the dialysis bag, A defect-rich graphene oxide solution with a pH of 7 was obtained (the volume of the solution remained unchanged before and after dialysis). Add 0.2g carbon nanotube and 0.1g polystyrene microspheres (the particle diameter of microsphere is 30nm) to above-mentioned defect-rich graphene oxide solution again afterwards, sti...

Technical field:

[0001] The invention relates to the field of preparation of new materials, in particular to a method for preparing a low-cost all-solid-state multilevel transparent flexible supercapacitor. Background technique

[0002] With the continuous development of wearable and portable multimedia electronic devices, higher requirements are put forward for flexible and transparent electronic devices. "Transparent and flexible" is already a promising direction of change for future consumer electronics. In order to realize the commercialization of flexible display devices with ultra-thin screens, its power supply components also need to be flexible and transparent. As an indispensable and important part, transparent flexible electronic devices have potential commercial impact and huge market value. , has become one of the research hotspots in the fields of materials, electronics, communication and other sciences. As a new type of energy storage device, transparent flexi...

Examples

Embodiment 1

[0037] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on a 10cm x 10cm PET substrate with a homogenizer, the rotation speed is 4000rpm, the spin-coating time is 40s, and then heated at 120°C for 5min with an electric heating plate, A transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0038] (2) get 50ml concentration and be that the graphene oxide solution of 5mg / ml is mixed with the hydrogen peroxide solution that 15ml mass fraction is 30%, 100 ℃ of stirring 5h, then the mixed solution is dialyzed (is about to above-mentioned mixed solution is poured in the dialysis bag, Then immerse the dialysis bag in deionized water and perform dialysis for 48 hours. The dialysis bag is specifically "MWCO: 1500D". The following dialysis steps are the same), and then pour out the solution in the dialysis bag to obtain a defect-rich graphene oxide solution with pH=7 (The sol...

Embodiment 2

[0045] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on a 10cm x 10cm PET substrate with a homogenizer, the rotation speed is 4000rpm, the spin-coating time is 40s, and then heated at 120°C for 5min with an electric heating plate, A transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0046] (2) Take 50ml of graphene oxide solution with a concentration of 5mg / ml and 15ml of hydrogen peroxide solution with a mass fraction of 30%, mix them, stir at 100°C for 5h, then dialyze the mixed solution, then pour out the solution in the dialysis bag, A defect-rich graphene oxide solution with a pH of 7 was obtained (the volume of the solution remained unchanged before and after dialysis). Add 0.2g carbon nanotube and 0.1g polystyrene microspheres (the particle diameter of microsphere is 30nm) to above-mentioned defect-rich graphene oxide solution again afterwards, stir 5h...

Embodiment 3

[0052] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on a 10cm x 10cm PET substrate with a homogenizer, the rotation speed is 4000rpm, and the spin-coating time is 40s, and then heated at 120°C for 5min with an electric heating plate, A transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0053] (2) Take 50ml of graphene oxide solution with a concentration of 5mg / ml and 15ml of hydrogen peroxide solution with a mass fraction of 30%, mix them, stir at 100°C for 5h, then dialyze the mixed solution, then pour out the solution in the dialysis bag, A defect-rich graphene oxide solution with a pH of 7 was obtained (the volume of the solution remained unchanged before and after dialysis). Add 0.2g carbon nanotube and 0.1g polystyrene microspheres (the particle diameter of microsphere is 30nm) to above-mentioned defect-rich graphene oxide solution again afterwards, sti...

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