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A kind of supercapacitor electrode material and preparation method thereof

A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, etc., can solve the problems of poor electrode cycle stability, easy broken chains, poor cycle stability, and unstable internal structure, etc., and achieve effective Good for cleaning, good electrical conductivity, and low cost

Active Publication Date: 2020-06-30
国容智能科技(南京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the advantages of excellent oxidation-reduction properties, strong conductivity, good proton exchange and environmental stability, etc., but the internal structure is unstable, the chain is easily broken and the cycle stability is poor, which makes the electrode cycle stability poor.

Method used

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  • A kind of supercapacitor electrode material and preparation method thereof
  • A kind of supercapacitor electrode material and preparation method thereof
  • A kind of supercapacitor electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of supercapacitor electrode material comprises the following steps:

[0031] (1) Dissolve 1.840g N-phenyl-1,4-phenylenediamine in 0.9mol·dm -3 100ml of acetone, 100ml of water and 0.7mol·dm -3 0.044mol·dm in a mixed solution of 25ml of hydrochloric acid -3 N-phenyl-1,4 phenylenediamine solution;

[0032] (2) Place the N-phenyl-1,4-phenylenediamine solution in an ice bath and stir for 0.5 hours. After the temperature drops to 0°C, slowly add 0.4mol·dm -3 25ml of ammonium persulfate solution and keep the temperature of the solution at 0-5°C, then stir the reaction for 3 hours at a stirring speed of 1200r / min, then filter under reduced pressure, and use 0.6mol·dm -3 The acid was washed several times, and washed twice with acetone, and finally washed with a large amount of deionized water until neutral;

[0033] (3) Vacuum-dry the product obtained in step (2) in an oven at 50° C. for 12 hours to obtain aniline tetramer as a solid;

[0034] (4) Ta...

Embodiment 2

[0042] The preparation method of supercapacitor electrode material comprises the following steps:

[0043] (1) Dissolve 2.484g of N-phenyl-1,4-phenylenediamine in 1.2mol·dm -3 100ml of acetone, 100ml of water and 2mol·dm -3 0.06mol·dm in a mixed solution of 25ml of hydrochloric acid -3 N-phenyl-1,4 phenylenediamine solution;

[0044] (2) Place the N-phenyl-1,4-phenylenediamine solution in an ice bath and stir for 2 hours. After the temperature drops to 0°C, slowly add 0.4mol·dm -3 25ml of ammonium persulfate solution and keep the temperature of the solution at 0-5°C, then stir the reaction for 5 hours at a stirring speed of 2000r / min, then filter under reduced pressure and use 1mol·dm -3 Hydrochloric acid washed several times, and washed 5 times with acetone, and finally washed to neutrality with a large amount of deionized water;

[0045] (3) Vacuum-dry the product obtained in step (2) in an oven at 80° C. for 9 hours to obtain aniline tetramer as a solid;

[0046] (4) T...

Embodiment 3

[0050] The preparation method of supercapacitor electrode material comprises the following steps:

[0051] (1) Dissolve 1.840g of N-phenyl-1,4-phenylenediamine in 1.0mol·dm -3 100ml of acetone, 100ml of water and 1.2mol·dm -3 0.044mol·dm in a mixed solution of 25ml of hydrochloric acid -3 N-phenyl-1,4 phenylenediamine solution;

[0052] (2) Place the N-phenyl-1,4-phenylenediamine solution in an ice bath and stir for 1 hour. After the temperature drops to 0°C, slowly add 0.4mol·dm -3 25ml of ammonium persulfate solution and keep the solution temperature at 0-5°C, then stir the reaction for 3.5 hours at a stirring speed of 1500r / min, then filter under reduced pressure and use 0.7mol·dm -3 Wash with hydrochloric acid for several times, and wash with acetone for 3 times, and finally wash with a large amount of deionized water until neutral;

[0053] (3) Vacuum-dry the product obtained in step (2) in an oven at 65° C. for 10 hours to obtain aniline tetramer as a solid;

[0054...

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Abstract

The invention discloses a supercapacitor electrode material and a preparation method thereof. The electrode material comprises a reduced graphene oxide / aniline tetramer composite material, and the mass ratio of the aniline tetramer to the reduced graphene oxide is 4-1: 1-4. The preparation method comprises the following steps: (1) adding N. Phenyl-1, 4-Phenylenediamine is dissolved in a mixture ofacetone, water and hydrochloric acid. 2, stir in an ice bath, slowly adding ammonium persulfate solution when that temperature drop to 0 DEG C, stirring, vacuum filtering, washing with hydrochloric acid for many time, and washing with acetone and large amount of deionized water to neutrality; 3) vacuum dry that product to obtain aniline tetramer; 4) adde aniline tetramer into graphene oxide suspension, ultrasonic stirring, heat, natural cooling, vacuum filtration and vacuum drying; 5. Mix that reduced graphene oxide / aniline tetramer composite, the conductive agent and the bind. The electrodematerial of the supercapacitor prepared by the invention has high specific capacitance and high cycle stability.

Description

technical field [0001] The invention relates to a capacitor and its preparation, in particular to a supercapacitor electrode material and its preparation method. Background technique [0002] Conductive polymer is a new type of polymer material, which is widely used in electrode materials, metal anti-corrosion materials, electrochromic materials, light-emitting diodes and immobilized enzyme materials. Among the many conductive polymers, polyaniline is widely available for its synthetic raw materials, simple and simple synthesis method, and low production cost. It also has good electrical conductivity, electrochromism, proton exchange, and environmental stability. These characteristics make it the most researched and most promising conductive polymer material in the world. It has the advantages of excellent oxidation-reduction properties, strong conductivity, good proton exchange and environmental stability, etc., but its internal structure is unstable, easy to break chains ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/24H01G11/30H01G11/36H01G11/48H01G11/86
CPCH01G11/24H01G11/30H01G11/36H01G11/48H01G11/86Y02E60/13
Inventor 陈传祥周康宋楠楠陈雅娴
Owner 国容智能科技(南京)有限公司
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