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Preparation method and application of supercapacitor material

A supercapacitor and reaction technology, applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of restricting the development of emerging industries, low charging and discharging efficiency, low maximum power density, etc., and achieve high maximum power density. , cheap raw materials, strong practicability

Inactive Publication Date: 2017-07-07
SUZHOU HAILINGDA EIECTRONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional supercapacitors using acetylene carbon black as electrodes often have defects such as low energy density, low maximum power density, and low charge-discharge efficiency, which limit the large-scale industrial application of supercapacitors and restrict this emerging technology. industry development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Mix 15 g of acetylene carbon black with an iodine absorption value of 105 g / Kg at 0°C with a liquid-solid ratio of 8 and sulfuric acid with a mass concentration of 92%, add 3 g of sodium p-styrene sulfonate, Heating at a rate of 1 min, warming up to 110°C, keeping the temperature for 2 hours, then cooling the reaction mixture to room temperature, adding 600 mL of distilled water to the reaction mixture for dilution, and then centrifuging at a speed of 7000 rpm to separate and remove the solution, and then use 1000 mL of absolute ethanol was used to wash the lower precipitate obtained by centrifugation twice, add the washed precipitate to distilled water to form a mixed solution with a liquid-solid ratio of 15, and transfer it to a high-pressure hydrothermal reactor to keep its volume filled. Ratio of 1.2, hydrothermal treatment at 350 °C for 10 h, after cooling to room temperature, the hydrothermal product was washed and filtered until the pH value was 7.0, and then ...

Embodiment 2

[0028] (1) Mix 15 g of acetylene carbon black with an iodine absorption value of 105 g / Kg at 0°C with a liquid-solid ratio of 10 and sulfuric acid with a mass concentration of 92%, add 3 g of sodium p-styrene sulfonate, and heat at 9°C / Heating at a rate of 1 min, heating up to 110°C and then keeping the reaction for 2.5 h, then cooling the reaction mixture to room temperature, adding 600 mL of distilled water to the reaction mixture for dilution, and then centrifuging at 7500 rpm to separate and remove the solution. Then use 1000 mL of absolute ethanol to wash the lower precipitate obtained by centrifugation twice, add the washed precipitate to distilled water to form a mixed solution with a liquid-solid ratio of 15, and transfer it to a high-pressure hydrothermal reactor to keep its The volume filling ratio was 1.2, and the hydrothermal treatment was carried out at 350 °C for 12 h. After cooling to room temperature, the hydrothermal product was washed and filtered until the p...

Embodiment 3

[0035] (1) Mix 15 g of acetylene carbon black with an iodine absorption value of 105 g / Kg at 0°C with a liquid-solid ratio of 12 and sulfuric acid with a mass concentration of 92%, add 3 g of sodium p-styrene sulfonate, Heating at a rate of 1 min, warming up to 110 °C and then keeping the reaction for 3 h, then cooling the reaction mixture to room temperature, adding 600 mL of distilled water to the reaction mixture for dilution, and then centrifuging at 8000 rpm to separate and remove the solution. Then use 1000 mL of absolute ethanol to wash the lower precipitate obtained by centrifugation for 3 times, add the washed precipitate to distilled water to form a mixed solution with a liquid-solid ratio of 15, and transfer it to a high-pressure hydrothermal reactor to keep its The volume filling ratio was 1.2, hydrothermal treatment was carried out at 350 °C for 15 h, and after cooling to room temperature, the hydrothermal product was washed and filtered until the pH value was 7.2,...

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PUM

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Abstract

The invention discloses a preparation method and application of a supercapacitor material. The process comprises the steps of mixing and heating acetylene black, sulfuric acid and sodium p-styrenesulfonate, and performing a series of operation such as heat preservation, cooling, dilution, centrifugal separation and washing to obtain a modified carbon black compound; adding lithium dihydrogen phosphate and nickel chloride in a reaction kettle for reaction, and performing acid processing after drying; mixing the product and a reactant obtained through high-temperature reaction of acrylonitrile power, dimethyl sulfoxide and tetraethyl orthosilicate, and adding distilled water for ultrasonic dispersion, adding waterborne polyurethane emulsion, cobaltosic sulfide, stannous chloride, a triethanolamine salt and a silane coupling agent for high-temperature reaction; and finally, performing washing and vacuum drying to obtain a finished product. The supercapacitor material obtained by preparation is high in energy density, maximum power density and charge-discharge efficiency, and has relatively good application prospect. Meanwhile, the invention also discloses application of the supercapacitor material prepared by the process in preparation of a supercapacitor.

Description

technical field [0001] The invention relates to the technical field of capacitor materials, in particular to a preparation method and application of super capacitor materials. Background technique [0002] With the rapid development of social economy and rapid population growth, the shortage of resources and energy and the deterioration of the ecological environment have become problems to be solved today. As a non-renewable resource, coal has shifted from shallow mining to deep mining, making mining more difficult and dangerous. With the adjustment of energy structure, the proportion of renewable energy is gradually increasing. Therefore, the development and utilization of various renewable new energy technologies have received extensive attention, such as wind energy, solar energy, and tidal energy. Whether it is the development of the manufacturing industry or the utilization of secondary energy, finding a suitable energy storage device is an important part of it. Due ...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/30
CPCY02E60/13H01G11/86H01G11/30
Inventor 黄啸谷张其土
Owner SUZHOU HAILINGDA EIECTRONIC TECH CO LTD
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