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Polyazine material as well as preparation method and application thereof

A conductive material, polymerization technology, used in the manufacture of hybrid/electric double-layer capacitors, active material electrodes, electrical components, etc., can solve the problems of phenazine loss, a large amount of conductive agent, difficult operation, etc., to achieve inhibition of dissolution, high ratio capacity, the effect of increasing the specific capacity

Pending Publication Date: 2022-03-01
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, phenazine does not conduct electrons, is easy to sublimate, and can evaporate with water vapor. Therefore, it requires a large amount of conductive agent for energy storage batteries and is difficult to operate. After the electrode is dried, part of the phenazine is usually lost due to sublimation.

Method used

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  • Polyazine material as well as preparation method and application thereof
  • Polyazine material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Weigh 1.53g o-phenylenediamine and dissolve it in 50ml deionized water to prepare component A solution; weigh 0.47g quinoxaline and dissolve it in 50ml deionized water to prepare component B solution; weigh 8.11g ammonium persulfate Dissolve in 50ml of deionized water to prepare ammonium persulfate solution as oxidant solution (the molar ratio of o-phenylenediamine and quinoxaline mixed monomer to ammonium persulfate is 1:2). Place the oxidant solution in an ice-water bath (0°C) and continue magnetic stirring. Add component A solution and component B solution to the oxidant solution at an equal speed with a dual-channel peristaltic pump, and control the dropping rate to 0.5ml / min. After the addition was complete, the mixed solution was continuously stirred for 8 h. After the reaction, use a centrifuge to remove the supernatant, set the speed of the centrifuge to 4000r / min, use deionized water to wash until it is colorless, then use anhydrous ethanol to wash, and finally d...

Embodiment 2

[0045] Use an aqueous hydrochloric acid solution with a concentration of about 4 mol / L (12 mol / L hydrochloric acid solution and water mixed in a volume ratio of 1:2) as a solvent to prepare 100ml of a component A solution with a concentration of 0.01 mol / L o-diaminophenazine Use the hydrochloric acid aqueous solution (the hydrochloric acid solution of 12mol / L and water are mixed by volume ratio 1:2) of concentration about 4 mol / liter as solvent, be mixed with the B component solution 100ml that phenazine concentration is 0.01 mol / liter; Ionized water was used as a solvent to prepare 200 ml of an oxidizing agent solution with a concentration of ammonium persulfate of 0.01 mol / liter. Place the oxidant solution in an ice-water bath (0°C) and continue magnetic stirring. Add component A solution and component B solution to the oxidant solution at the same speed with a dual-channel peristaltic pump. After the dropwise addition, keep the mixed solution continuously The reaction was s...

Embodiment 3

[0047] Use an aqueous hydrochloric acid solution with a concentration of about 4 mol / L (12 mol / L hydrochloric acid solution and water mixed in a volume ratio of 1:2) as a solvent to prepare 100ml of a component A solution with a concentration of 2 mol / L o-diaminophenazine ; Use the hydrochloric acid aqueous solution (the hydrochloric acid solution of 12mol / L and water are mixed by volume ratio 1:2) of concentration about 4 mol / liter as solvent, be mixed with the B component solution 100ml that phenazine concentration is 2 mol / liter; Ionized water was used as a solvent to prepare 200ml of an oxidizing agent solution with a concentration of ammonium persulfate of 2 mol / liter. Place the oxidizing agent solution in a water bath (100°C) and continue magnetic stirring. Use a dual-channel peristaltic pump to add component A solution and component B solution to the oxidizing agent solution at an equal speed, and control the dropping rate to 15ml / min. Afterwards, the mixed solution was...

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Abstract

The invention relates to a polyazine material. The polyazine material is prepared by carrying out polymerization reaction on a component A and a component B in the presence of an oxidizing agent, wherein the component A is one or more than one of o-phenylenediamine, 1, 2, 4, 5-tetraaminobenzene, 2, 3-diaminonaphthalene, 2, 3, 6, 7-tetraminonaphthalene, 2, 3-diaminophenazine and 2, 3, 7, 8-tetraminophenazine, and the component B is one or more than one of o-phenylenediamine, 1, 2, 4, 5-tetraminobenzene, 2, 3-diaminonaphthalene, 2, 3, 6, 7-tetraminonaphthalene, 2, 3, 7, 8-tetraminophenazine; and the component B is one or more of pyrazine, quinoxaline, pyrazino quinoxaline and phenazine. The polyazine material provided by the invention solves the problems that phenazine does not conduct electrons and is easy to sublimate, is simple to operate when being used for an energy storage battery, can reduce the use amount of a conductive agent, effectively inhibits the dissolution problem, can provide higher electrochemical specific capacity, and can be applied to the energy storage battery. The material is suitable for being used as a battery or supercapacitor cathode material.

Description

technical field [0001] The invention belongs to the technical field of battery materials, and in particular relates to a polyazine material and its preparation method and application. Background technique [0002] In today's society, the insufficient supply of fossil energy has become the bottleneck of global economic development. At the same time, the environmental pollution caused by the use of fossil energy is becoming more and more serious. Actively developing and utilizing renewable new energy and large-scale power storage technology and building a smart grid are the only ways to reduce human dependence on fossil energy and purify the environment. Battery-based chemical power storage technology is the premise and basis for realizing renewable energy power generation, and its demand is urgent. Existing chemical energy storage batteries mainly include lead-acid batteries, nickel-metal hydride batteries, flow batteries, and lithium-ion batteries with organic media. Howev...

Claims

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Application Information

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IPC IPC(8): H01M4/60H01G11/48H01G11/86
CPCH01M4/602H01G11/48H01G11/86H01M2004/027Y02E60/10Y02E60/13
Inventor 程杰杨裕生
Owner CHAOWEI POWER CO LTD
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