Preparation method of three-dimensional carbon nanotube adhesive tape flexible current collector
A flexible current collector, carbon nanotube technology, applied in the direction of hybrid capacitor current collector, hybrid/electric double layer capacitor manufacturing, etc., can solve the problem of limiting the contact area of electroactive materials, limiting the electrochemical surface area of electroactive materials, and unfavorable flexible supercapacitors. Electrochemical performance and other issues, to achieve the effect of improving electrochemical performance, avoiding current collector damage, and low cost
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Embodiment 1
[0020] A preparation method of a three-dimensional carbon nanotube tape flexible current collector, comprising the following steps:
[0021] The carbon nanotube film pasted with scotch tape was used as the anode, and the platinum sheet was used as the cathode, respectively immersed in 1mol / L H 2 SO 4 In the electrolytic cell of the solution, and the anode and the cathode are respectively connected to the positive pole and the negative pole of the DC power supply. Next, the carbon nanotubes were dispersed by applying a constant voltage of 2V between the anode and the cathode, the treatment time was 1800s, and the treatment temperature was 35°C. Subsequently, the dispersed current collector is washed with deionized water, and dried at room temperature to obtain a three-dimensional carbon nanotube tape flexible current collector.
[0022] figure 1 It can be seen that through the dispersion treatment, the carbon nanotube tape flexible current collector changes from a two-dimens...
Embodiment 2
[0024] A preparation method of a three-dimensional carbon nanotube tape flexible current collector, comprising the following steps:
[0025] The carbon nanotube paper pasted with insulating tape is used as the anode, and the platinum sheet is used as the cathode, which are respectively immersed in the electrolytic cell filled with 3mol / L NaOH solution, and the anode and cathode are respectively connected to the positive and negative poles of the DC power supply. Next, the carbon nanotubes were dispersed by applying a constant voltage of 10V between the anode and the cathode. The treatment time was 30s, and the treatment temperature was 5°C. A three-dimensional carbon nanotube tape flexible current collector was obtained.
[0026] figure 2 It can be seen that through the dispersion treatment, the carbon nanotubes in the current collector change from a two-dimensional aggregated structure to a three-dimensional dispersed structure. This three-dimensional dispersion structure ...
Embodiment 3
[0028] A preparation method of a three-dimensional carbon nanotube tape flexible current collector, comprising the following steps:
[0029] The carbon nanotube paper pasted with scotch tape is used as the anode, the platinum sheet is used as the cathode, and the calomel electrode is used as the reference electrode, which are respectively immersed in the electrolytic cell filled with 2mol / L NaCl solution, and the anode and the cathode are respectively connected to the positive electrode and the positive electrode of the DC power supply. Negative connection. Next, by applying a current density of 1 mA / cm between the anode and cathode 2 A constant current was used to disperse the carbon nanotube film, the treatment time was 3600s, and the treatment temperature was 30°C. Subsequently, the dispersed current collector is washed with deionized water, and dried at room temperature to obtain a three-dimensional carbon nanotube tape flexible current collector. The carbon nanotubes in...
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