An all-solid-state supercapacitor based on hybrid fiber electrodes and its preparation method
A supercapacitor and hybrid fiber technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, fiber processing, etc., can solve the problems of easy shedding, weak combination of electrode active material and fabric substrate, and non-stretchability. , to achieve the effect of simple process, good electrochemical stability and weaving, and low cost
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Embodiment 1
[0035] (1) Disperse 20 mg of graphite oxide in 10 mg of N,N-dimethylformamide, and after ultrasonication for 3 hours, obtain a 2 mg / ml graphite oxide dispersion;
[0036] (2) Add 50 mg of carbon nanotubes to the above dispersion, and sonicate for 2 hours in an ice-water bath environment;
[0037] (3) Add 4g of polyurethane to the above dispersion, heat to 60°C, stir and condense to reflux for 2h, and after cooling to room temperature, GO / CNT-TPU spinning solution can be obtained;
[0038] (4) Use a needle with an inner diameter of 840 μm to inject the above spinning solution into deionized water through a syringe at a rate of 2 mL / min to obtain GO / CNT-TPU porous hybrid fibers, collect them in a cylinder, and dry naturally;
[0039] (5) Take two sections of hybrid fibers about 8cm long and immerse them in the polyvinyl alcohol / sulfuric acid gel electrolyte. In order for the electrolyte to form a sufficient coating on the surface of the hybrid fiber electrode, and part of the el...
Embodiment 2
[0044] (1) Take 10 mg of graphite oxide and disperse it in 10 mg of N,N-dimethylformamide, and after ultrasonication for 2 hours, obtain a 1 mg / ml graphite oxide dispersion;
[0045] (2) Add 50 mg of carbon nanotubes to the above dispersion, and sonicate for 1 hour in an ice-water bath environment;
[0046] (3) Add 2g of polyurethane to the above dispersion, heat to 70°C, stir and condense to reflux for 1h, and after cooling to room temperature, GO / CNT-TPU spinning solution can be obtained;
[0047] (4) Use a needle with an inner diameter of 400 μm to inject the above spinning solution into deionized water through a syringe at a rate of 1 mL / min to obtain GO / CNT-TPU hybrid fibers, collect them in a cylinder, and dry naturally;
[0048] (5) Take two sections of hybrid fibers about 8cm long and immerse them in the polyvinyl alcohol / sulfuric acid gel electrolyte. In order for the electrolyte to form a sufficient coating on the surface of the hybrid fiber electrode, and part of th...
Embodiment 3
[0050] (1) Take 15 mg of graphite oxide and disperse it in 10 mg of N,N-dimethylformamide, and after ultrasonication for 1.5 h, obtain a 1.5 mg / ml graphite oxide dispersion;
[0051] (2) Add 50 mg of carbon nanotubes to the above-mentioned dispersion, and sonicate for 2.5 hours in an ice-water bath environment;
[0052] (3) Add 3g of polyurethane to the above dispersion, heat to 65°C, stir and condense to reflux for 1.5h, and after cooling to room temperature, GO / CNT-TPU spinning solution can be obtained;
[0053] (4) Use a needle with an inner diameter of 600 μm to inject the above spinning solution into deionized water through a syringe at a rate of 1.5 mL / min to obtain GO / CNT-TPU hybrid fibers, collect them in a cylinder, and dry them naturally;
[0054] (5) Take two sections of hybrid fibers about 8cm long and immerse them in the polyvinyl alcohol / sulfuric acid gel electrolyte. In order for the electrolyte to form a sufficient coating on the surface of the hybrid fiber ele...
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