High-voltage planar supercapacitor as well as preparation method thereof
A supercapacitor, planar technology, applied in the manufacture of hybrid/electric double layer capacitors, multiple hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of complex series steps, poor flexibility, low voltage, etc. It has universality, simple preparation method, and the effect of reducing weight and volume
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Embodiment 1
[0040] The intercalated and exfoliated graphene and conductive carbon black are fully mixed to obtain a mixture of the two with a mass ratio of 7:3, and then the above mixture is dispersed in a bivalent ester dissolved in polyvinyl chloride vinyl acetate by ball milling, wherein the mixture The mass ratio of polyvinyl chloride vinyl acetate and dibasic acid ester is 1:1:9, and the resulting dispersion system is used as conductive ink for screen printing. Design the screen printing screen, the screen part is 4 strip-shaped devices and the connecting body between the devices, the length of a single electrode of the strip-shaped device is 1cm, the width is 0.6mm, the spacing is 1mm, the connecting body length is 6mm, and the width is 4mm. When screen printing, place the glass about 5mm below the screen, apply conductive ink to the blank space at one end of the screen, and then use a scraper to scrape the ink to the other end of the screen at a speed of about 3cm / s, during which t...
Embodiment 2
[0043] The graphene exfoliated in the liquid phase and the conductive carbon black are fully mixed with a mass ratio of 7:3 to obtain a mixture of the two, and then the mixture is dispersed in a bivalent ester dissolved in polyvinyl chloride vinyl acetate by a ball milling method, wherein the mixture The mass ratio of polyvinyl chloride vinyl acetate and dibasic acid ester is 1:1:9, and the resulting dispersion system is used as conductive ink for screen printing. Design the screen printing screen, the screen part is a supercapacitor obtained by connecting 10 strip-shaped devices in series, the length of a single electrode of the strip-shaped device is 1cm, the width is 0.6mm, the spacing is 1mm, the length of the connecting body is 6mm, and the width is 4mm . When screen printing, place PET about 5mm below the screen, apply conductive ink to the blank space at one end of the screen, and then use a scraper to scrape the ink to the other end of the screen at a speed of about 3c...
Embodiment 3
[0046] Fully mix the reduced graphene oxide and conductive carbon black with a mass ratio of 9:1 to obtain a mixture, and then disperse the mixture in a bivalent ester dissolved in polyvinyl chloride vinyl acetate by ball milling, wherein the mixture, polyvinyl chloride acetate The mass ratio of vinyl ester and dibasic acid ester is 1:1:9, and the resulting dispersion system is used as conductive ink for screen printing. Design the screen printing screen, the screen part is a supercapacitor obtained by connecting 130 strip-shaped devices in series, the length of a single electrode of the strip-shaped device is 1cm, the width is 0.6mm, the spacing is 1mm, the length of the connecting body is 6mm, and the width is 4mm ,Such as image 3 shown. When screen printing, place PET about 5mm below the screen, apply conductive ink to the blank space at one end of the screen, and then use a scraper to scrape the ink to the other end of the screen at a speed of about 3cm / s, during which t...
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