Preparation method and application of polyaniline zinc ion battery of high-voltage platform

Abstract

The invention belongs to the technical field of preparation of high-performance zinc ion batteries, and discloses a preparation method and application of a polyaniline zinc ion battery of a high-voltage platform. A polyaniline dopant and an electrolyte additive are selected; doping and a synthesis method in polyaniline are changed; the additive is added into the electrolyte taking zinc sulfate asa main body, and the electrolyte is adjusted to be weakly acidic; and by adding protonic acid into polyaniline for doping, a conductive polymer material with a stable microstructure is grown on carboncloth, and a three-dimensional porous structure is formed by cross-linking a rod-like structure. By adding the protonic acid into polyaniline for doping, the conductive polymer material with the stable microstructure grows on the carbon cloth, the three-dimensional porous structure formed by crosslinking a rod-like structure has good stability, a large specific surface area and high conductivity,and the specific capacity, the charge-discharge voltage and the charge-discharge speed of the battery are improved; and the high discharge voltage window can effectively reduce series use of batteries in practical application.

Description

technical field [0001] The invention belongs to the technical field of preparation of high-performance zinc-ion batteries, and in particular relates to a preparation method and application of a high-voltage platform polyaniline zinc-ion battery. Background technique [0002] With the rapid development of electrical engineering and electronic equipment, people have put forward higher requirements for the performance of energy storage devices. Zinc-ion batteries have received extensive attention and research in the field of energy storage due to their good stability and high energy density. . In addition, conductive polymers are often used as electrode materials for batteries because of their high electrical conductivity, simple synthesis methods, and high energy efficiency. Currently commonly used conductive polymers include polyaniline, polypyrrole, polythiophene, etc., and their doping and dedoping properties can effectively improve the electrical storage properties of con...

AI Technical Summary

Problems solved by technology

At present, although rechargeable batteries have made great progress, due to the widespread use of aqueous electrolytes, the voltage window range is narrow, so the relative capacity is also low.

On the other hand, the oxidation-reduction potential is constant during the reaction process, and the discharge voltage platform is not high.

[0003] Through the above analysis, the problems and defects of the existing technology are: the current rechargeable battery has low energy density and low discharge voltage platform

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