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Preparation method of zinc ion battery positive electrode material and electrode material prepared by preparation method

A technology for zinc ion batteries and positive electrode materials, which is applied in battery electrodes, nanotechnology for materials and surface science, secondary batteries, etc., can solve the problems of high price and complex process, and achieves low cost, simple preparation process, good continuity

Pending Publication Date: 2021-04-30
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to provide a preparation method of the positive electrode material of zinc ion battery and the prepared electrode material, to solve the problems of complex process and high price in the prior art, the positive electrode of zinc ion battery based on the present invention The material preparation method is simple and low in preparation cost; the prepared polyaniline hydrogel zinc ion battery positive electrode material has a complete nanofiber structure, which effectively improves the cycle stability of the electrode material and has great application value

Method used

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  • Preparation method of zinc ion battery positive electrode material and electrode material prepared by preparation method
  • Preparation method of zinc ion battery positive electrode material and electrode material prepared by preparation method
  • Preparation method of zinc ion battery positive electrode material and electrode material prepared by preparation method

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Embodiment 1

[0036] First, add 2mmol sodium dodecylbenzenesulfonate and 10mmol aniline hydrochloride to 40mL deionized water in sequence, and stir to completely dissolve the sodium dodecylbenzenesulfonate and aniline hydrochloride. Then, the mixed solution system was placed in an ice-water bath, cooled to 0-4° C., 10 mmol of ammonium persulfate was added, stirred evenly, and left to react at 4° C. for 12 hours to form a stable polyaniline hydrogel. Finally, the above-mentioned polyaniline hydrogel was washed 5 times with a large amount of deionized water, and freeze-dried to obtain a product polyaniline material that can be used as a positive electrode material for a zinc-ion battery.

Embodiment 2

[0038] First, add 2mmol sodium dodecylbenzenesulfonate and 12mmol aniline hydrochloride to 40mL deionized water in sequence, and stir to completely dissolve the sodium dodecylbenzenesulfonate and aniline hydrochloride. Then, the mixed solution system was placed in an ice-water bath, cooled to 0-4° C., 7 mmol potassium permanganate was added, stirred evenly, and left to react at 4° C. for 12 hours to form a stable polyaniline hydrogel. Finally, the above-mentioned polyaniline hydrogel was washed 5 times with a large amount of deionized water, and freeze-dried to obtain the product polyaniline material.

Embodiment 3

[0040] First, add 2mmol sodium dodecylbenzenesulfonate and 12mmol aniline hydrochloride to 40mL deionized water in sequence, and stir to completely dissolve the sodium dodecylbenzenesulfonate and aniline hydrochloride. Then, the mixed solution system was placed in an ice-water bath, cooled to 0-4° C., 12 mmol of ammonium persulfate was added, stirred evenly, and left to react at 4° C. for 24 hours to form a stable polyaniline hydrogel. Finally, the above-mentioned polyaniline hydrogel was washed 5 times with a large amount of deionized water, and freeze-dried to obtain the product polyaniline material.

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Abstract

The invention relates to a preparation method of a zinc ion battery positive electrode material and an electrode material prepared by the preparation method, the preparation method comprises the following steps: respectively dissolving sodium dodecyl benzene sulfonate and aniline hydrochloride in water to obtain a mixed solution system, wherein the concentration of sodium dodecyl benzene sulfonate is 0.01-1.0 mol / L, the concentration of aniline hydrochloride is 0.03-3.0 mol / L, and the molar ratio of sodium dodecyl benzene sulfonate to aniline hydrochloride is 1: (3-5); cooling the mixed solution system to 0-4 DEG C, adding an oxidizing agent, uniformly mixing, and standing for reaction to obtain stable polyaniline hydrogel, wherein the molar ratio of the use amount of the oxidizing agent to the use amount of aniline hydrochloride is 0.1-3.0; and washing the polyaniline hydrogel with water for multiple times, and freeze-drying to obtain a product polyaniline material. Based on the preparation method of the zinc ion battery positive electrode material, the preparation is simple, and the preparation cost is low; the prepared polyaniline hydrogel zinc ion battery positive electrode material has a complete nanofiber structure, and the cycling stability of the electrode material is improved.

Description

technical field [0001] The invention belongs to the technical field of battery materials, and in particular relates to a preparation method of a positive electrode material of a zinc ion battery and the prepared electrode material. Background technique [0002] Due to high energy density, long service life and high energy efficiency, lithium-ion batteries have become one of the most widely used energy storage devices at present, however, flammable and explosive organic electrolytes, limited lithium reserves and high prices have become lithium-ion batteries. Grand challenges in ion battery applications. For this reason, some water-based metal-ion batteries with abundant element reserves and low prices have attracted increasing attention from researchers. Among them, zinc-ion batteries composed of zinc metal negative electrodes, zinc-ion aqueous electrolytes, and positive electrodes are favored by researchers. It has the following significant advantages: abundant zinc metal r...

Claims

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Application Information

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IPC IPC(8): H01M4/60H01M10/36B82Y30/00B82Y40/00
CPCH01M4/606H01M10/36B82Y40/00B82Y30/00Y02E60/10
Inventor 黄华波吴可嘉涂金英徐雪李成李亮刘玉兰
Owner WUHAN INSTITUTE OF TECHNOLOGY
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