Method for preparing electrode material through synchronous polymerization method

A technology for preparing electrodes and polymerization methods, which is applied in battery electrodes, carbon preparation/purification, circuits, etc., can solve the problems of poor rate cycle performance, poor conductivity, and high cost, and achieve good rate performance, good cycle performance, and specific electric capacity The effect of large capacity

Active Publication Date: 2017-06-13
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, inorganic oxide electrode materials (mainly metal oxides) include RuO 2 、TiO 2 , SnO 2 etc., its main feature is that the electrochemical devices made of this material have high specific energy and specific power, but the disadvantages are that the cost of the material is too high, the conductivity is poor, the rate and cycle performance are poor, and heavy metals are not easy to recycle.
Conductive polymer materials include PPY, PTH, PAS, PFPT and other P-type or N-type or P / N-type doped materials. The advantage of this electrode is that it has a high specific capacitance and a small internal resistance, but its However, there are some restrictions on cycle performance and stability

Method used

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  • Method for preparing electrode material through synchronous polymerization method
  • Method for preparing electrode material through synchronous polymerization method
  • Method for preparing electrode material through synchronous polymerization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of sulfur-doped carbon materials by simultaneous polymerization, according to the following steps:

[0028] ① Measure highly purified 2-thiophene methanol 10.0g, highly purified tetraethyl silicate 4.90mL (the molar ratio of the hydroxyl group in 2-thiophene methanol to the ester group in tetraethyl silicate is 1:1), Then put it into a round bottom flask and stir well.

[0029] ②Measure 442μL ([M] / [I]=5) of trifluoroacetic acid and dissolve it in 20.0mL of dichloromethane, stir well to make it evenly mixed, and slowly add the solution dropwise to a container containing 2- In the round bottom flask of the mixture of thiophene methanol and tetraethyl silicate, add it dropwise in about half an hour.

[0030] ③Set up the condensing reflux device, heat and stir at 90°C for 2.5h to obtain the brown product A (mixed liquid), then take out the product A, let it stand at room temperature, add a large amount of dichloromethane for extraction after cooling, and take t...

Embodiment 2

[0036] Preparation of sulfur-doped carbon materials by simultaneous polymerization, according to the following steps:

[0037] ① Measure highly purified 2-thiophene methanol 10.0g, highly purified tetrapropyl silicate 5.05mL (the molar ratio of the hydroxyl group in 2-thiophene methanol to the ester group in tetrapropyl silicate is 1:1), Put into a round bottom flask and stir well.

[0038]② Measure 501.0 μL of trifluoromethanesulfonic anhydride ([M] / [I]=5) and dissolve it in 20.0 mL of dichloromethane, stir well to make it evenly mixed, and slowly add the solution dropwise to In the round bottom flask containing the mixture of 2-thiophene methanol and tetrapropyl silicate, add it dropwise in about half an hour.

[0039] ③Set up the condensing reflux device, and heat and stir the monomer added with the catalyst at 80°C for 3 hours to obtain the brown product A (mixed liquid), then take out the product A, let it stand at room temperature, and add a large amount of dichlorometh...

Embodiment 3

[0043] Preparation of sulfur-doped carbon materials by simultaneous polymerization, according to the following steps:

[0044] ① Measure highly purified 2-thiophene methanol 10.0g, highly purified tetrabutyl silicate 5.15mL (the molar ratio of the hydroxyl group in 2-thiophene methanol to the ester group in tetrabutyl silicate is 1:1), Put into a round bottom flask and stir well.

[0045] ② Measure 501.0 μL of trifluoromethanesulfonic anhydride ([M] / [I]=5) and dissolve it in 20.0 mL of dichloromethane, stir well to make it evenly mixed, and slowly add the solution dropwise to In the round bottom flask containing the mixture of 2-thiophene methanol and tetrabutyl silicate, add it dropwise in about half an hour.

[0046] ③Set up the condensing reflux device, and heat and stir the monomer added with the catalyst at 80°C for 3 hours to obtain the brown product A (mixed liquid), then take out the product A, let it stand at room temperature, and add a large amount of dichloromethan...

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Abstract

The invention discloses a method for preparing an electrode material through a synchronous polymerization method. The method comprises the steps of mixing an organic alcohol monomer and an inorganic oxide precursor evenly and adding acid for catalysis, synchronously polymerizing two monomers into a mixture of combined two high polymers; carrying out extracting and drying, and carbonizing in an oxygen-free environment to obtain the composite electrode material of the carbon material and the inorganic oxide, or burning in an aerobic environment to remove a carbon element to obtain the pure inorganic oxide electrode material. The composite electrode material of the carbon material and the inorganic oxide prepared through the method has outstanding advantages of relatively high specific capacitance, relatively good rate capability, relatively good conductivity and relatively good cycle performance, and has a relatively good development prospect in the field of electrochemistry; meanwhile, the inorganic oxide in the composite electrode material can be eliminated to obtain the pure carbon material; or the pure inorganic oxide electrode material is obtained through carbonization in air.

Description

technical field [0001] The invention relates to a method for preparing electrode materials, in particular to a method for preparing electrode materials by synchronous polymerization. Background technique [0002] With the depletion of fossil energy such as oil and coal, energy pollution is approaching, and the problem of energy crisis is becoming more and more serious. In such a background, it is urgent to request the development of new energy materials. In particular, electrochemical energy storage and conversion technology, as an emerging technology to deal with the energy crisis, has attracted attention due to its environmental friendliness and high efficiency. The core of electrochemical energy storage and conversion technology lies in electrochemical devices, and the core of electrochemical devices lies in electrode materials. [0003] Electrode materials mainly include inorganic oxide electrode materials, conductive polymer electrode materials and carbon materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/587H01M4/48C01B32/05
CPCH01M4/364H01M4/48H01M4/587Y02E60/10
Inventor 杨应奎陆贇李冉高鹏远张爱清
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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