Method for preparing electrode materials for supercapacitors on basis of airflow spinning processes
A technology for supercapacitors and electrode materials, applied in the fields of hybrid capacitor electrodes, hybrid/electric double-layer capacitor manufacturing, rayon manufacturing, etc., can solve the problems of low spinning efficiency and few large-scale production equipment, and reduce operating costs. , Realize the effect of industrialized production and ensure the output
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] Example 1: Take 2g of PAN and put it into a 50ml beaker, add 14.67g of DMF into the beaker, stir for 2-4h until it dissolves evenly, that is, make a DMF solution of 12wt% PAN. Add 0.167g of zinc chloride to the above solution, stir for 4 hours until it dissolves evenly, and obtain the spinning dope. As-spun fibers are obtained by air spinning. The obtained as-spun fibers were placed in a muffle furnace at 250 °C for two hours for pre-oxidation. The cured fiber was placed in a tubular resistance furnace, and under the protection of nitrogen, the temperature was raised to 600°C at a rate of 3°C / min for one hour, and then the temperature was raised to 800°C at a rate of 5°C / min for 30 minutes. After soaking the carbonized fiber in 5wt% HCl aqueous solution for 24 hours, the product was washed to neutrality by suction filtration, and the sample was dried at 100°C for 24 hours to finally obtain porous nanocarbon fibers with a high specific surface area. Electrochemical tes...
Embodiment 2
[0025] Example 2: Take 2g of PAN and put it into a 50ml beaker, add 14.67g of DMF into the beaker, stir for 2-4h until it dissolves evenly, that is, make a DMF solution of 12wt% PAN. Add 0.833g KOH to the above solution, stir for 4 hours until it dissolves evenly, and obtain the spinning dope. As-spun fibers are obtained by air spinning. The obtained as-spun fibers were placed in a muffle furnace at 250 °C for two hours for pre-oxidation. The cured fiber was placed in a tubular resistance furnace, and under the protection of nitrogen, the temperature was raised to 600°C at a rate of 3°C / min for one hour, and then the temperature was raised to 800°C at a rate of 5°C / min for 30 minutes. After soaking the carbonized fiber in 5wt% HCl aqueous solution for 24 hours, the product was washed to neutrality by suction filtration, and the sample was dried at 100°C for 24 hours to finally obtain porous nanocarbon fibers with a high specific surface area. Electrochemical tests show that ...
Embodiment 3
[0026] Example 3: Take 2g of PAN and put it into a 50ml beaker, add 14.67g of DMF into the beaker, stir for 2-4h until it dissolves evenly, that is, make a DMF solution of 12wt% PAN. Add 1.500 g of zinc chloride to the above solution, stir for 4 hours until it dissolves evenly, and obtain the spinning stock solution. As-spun fibers are obtained by air spinning. The as-spun fibers obtained were pre-oxidized in a muffle furnace at 250°C for two hours. The cured fiber was placed in a tubular resistance furnace, and under the protection of nitrogen, the temperature was raised to 600°C at a rate of 3°C / min for one hour, and then the temperature was raised to 800°C at a rate of 5°C / min for 30 minutes. After soaking the carbonized fiber in 5wt% HCl aqueous solution for 24 hours, the product was washed to neutrality by suction filtration, and the sample was dried at 100°C for 24 hours to finally obtain porous nanocarbon fibers with a high specific surface area. Electrochemical tests...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Specific surface area | aaaaa | aaaaa |
| Specific capacitance | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More