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Preparation method of nano-cable-connected ternary composite electrode material

An electrode material and ternary composite technology, which is applied in hybrid capacitor electrodes, spinning solution preparation, circuits, etc., can solve the problems of poor power performance of supercapacitors with ternary composite electrodes, poor conductivity of molecular sieves, etc., and improve electrochemical stability Sexuality, high power density, and the effect of smooth ion channels

Active Publication Date: 2014-04-02
锦州凯美能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular sieve used in the composite material prepared by this method has poor conductivity, so the power performance of the ternary composite electrode supercapacitor is relatively poor.

Method used

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  • Preparation method of nano-cable-connected ternary composite electrode material
  • Preparation method of nano-cable-connected ternary composite electrode material
  • Preparation method of nano-cable-connected ternary composite electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Preparation of graphene-ruthenium oxide nanosheets and aniline and o-fluoroaniline polymer-ruthenium oxide nanocable composites

[0031] process such as figure 1 As shown, the specific preparation steps are as follows:

[0032] 1. Preparation of aniline and o-fluoroaniline polymers

[0033] With 0.02mol aniline and 0.01mol o-fluoroaniline as polymerization monomers and 0.015mol ammonium persulfate as oxidant, the polymerization reaction is carried out in 0.3L aqueous solution of camphorsulfonic acid with a concentration of 1mol / L. The reaction temperature is 0°C and the reaction time is 24h, precipitate the polymerization reaction product in acetone of 10 times the volume of the polymerization reaction product, wash the precipitate with dilute hydrochloric acid and acetone until the filtrate is clear, dry the washed precipitate in vacuum at 80°C for 6 hours, Aniline and o-fluoroaniline polymers;

[0034] 2. Preparation of aniline and o-fluoroaniline polyme...

Embodiment 2

[0040] Example 2 Graphene-tin oxide nanosheets and aniline and 2,4-difluoroaniline polymer-tin oxide nanocable composites

[0041] process such as figure 1 As shown, the specific preparation steps are as follows:

[0042] 1. Preparation of aniline and 2,4-difluoroaniline polymers

[0043] Use 0.025mol aniline and 0.025mol 2,4-difluoroaniline as polymerization monomers, use 0.05mol ferric chloride as oxidant, carry out polymerization reaction in 1L sulfuric acid solution with a concentration of 0.1mol / L, and the reaction temperature is 20 ℃, reaction time 12h, precipitate the polymerization reaction product in acetone with 5 times the volume of the polymerization reaction product, wash the precipitate with dilute hydrochloric acid and acetone until the filtrate is clear, and place the washed precipitate at 40°C Vacuum drying for 24 hours to obtain aniline and 2,4-difluoroaniline polymer;

[0044] 2. Preparation of aniline and 2,4-difluoroaniline polymer electrospun fibers ...

Embodiment 3

[0050] Example 3 Preparation of graphene-titanium oxide nanosheets and aniline and p-trifluoromethylaniline polymer-titanium oxide nanocable composites

[0051] process such as figure 1 As shown, the specific preparation steps are as follows:

[0052] 1. Preparation of aniline and p-trifluoromethylaniline polymer

[0053] With 0.01mol aniline and 0.02mol p-trifluoromethylaniline as polymerization monomers, 0.06mol potassium permanganate as oxidant, carry out polymerization reaction in 0.3L perchloric acid aqueous solution whose concentration is 0.5mol / L, the reaction temperature 50°C, reaction time 1h, precipitate the polymerization reaction product in acetone with 8 times the volume of the polymerization reaction product, wash the precipitate with dilute hydrochloric acid and acetone until the filtrate is clear, and wash the precipitate at 60 Vacuum drying at 12 °C to obtain aniline and p-trifluoromethylaniline polymers;

[0054] 2. Preparation of aniline and p-trifluorom...

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Abstract

The invention discloses a preparation method of a nano-cable-connected ternary composite electrode material. Fluorine-containing aniline and aniline as polymerization monomers are added with an oxidizing agent and the reaction system undergoes a polymerization reaction in an acid aqueous solution, and the reaction product is subjected to precipitation, washing and drying so that a polymer of fluorine-containing aniline and aniline is obtained; the polymer of fluorine-containing aniline and aniline is dissolved in a solvent so that a spinning precursor is obtained, the spinning precursor is subjected to high-voltage electrostatic spinning, and then the spun precursor is subjected to vacuum drying so that electrospun fibers of the polymer of fluorine-containing aniline and aniline are obtained; and graphite oxide, the electrospun fibers of the polymer of fluorine-containing aniline and aniline, and a soluble metal salt are uniformly dispersed in an alcohol aqueous solution, the mixed solution undergoes a reaction under hydro-thermal conditions, and the reaction product is washed by deionized water and ethanol so that the composite material of graphene-metal oxide nano-sheets and fluorine-containing aniline polymer-metal oxide nano-cables is obtained. The nano-cable-connected ternary composite electrode material has good power characteristics and good stability and can be used as a super capacitor having a long circulation service life and high energy storage power density.

Description

technical field [0001] The invention belongs to the field of nano electrode materials, in particular to a preparation method of a ternary composite electrode material connected by nano cables. Background technique [0002] Electric double layer supercapacitors have the characteristics of good power performance, long cycle life and wide operating temperature range. However, the low energy density of electric double layer supercapacitors restricts its application in power sources such as electric vehicles, photovoltaics, and wind power. The energy density of supercapacitors can be effectively improved by combining porous materials and pseudocapacitive materials through blending, in-situ loading and other methods, and combining electric double layer capacitance with Faraday capacitance. Using activated carbon, carbon nanotubes, and activated carbon fibers as carriers to load pseudocapacitive materials to prepare composite electrode materials, there are problems such as low loa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C08K7/00C08K3/04C08K3/22C08G73/02D01F6/78D01D1/02H01G9/042
CPCY02E60/13C08K7/00C08K3/04C08K3/22C08K2003/2231C08K2003/2241C08K2201/011C08L2203/20D01D1/02D01F6/78H01G11/30
Inventor 何铁石杜微张庆国蔡克迪蔡艳荣
Owner 锦州凯美能源有限公司
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