Preparation method of graphene-containing energy storage polymer electrode sheet

A graphene and polymer technology, applied in the field of material science, can solve the problems of environmental protection recycling of electrode waste and other problems, and achieve the effects of low cost and simple preparation process

Inactive Publication Date: 2016-10-12
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to prepare electrodes cheaply and in batches, and there are still some difficulties in the environmentally friendly recycling of electrode waste.

Method used

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  • Preparation method of graphene-containing energy storage polymer electrode sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Mix the graphene powder and adhesive obtained by the modified hummers method in an agate mortar, grind them evenly, adjust the viscosity to 600-1000mpa.s with a solvent, and prepare energy storage latex for later use; After cationic naphthalene diimide is modified, it is reduced to anion with sodium thiosulfate in aqueous solution or formamide, and the water is volatilized under the protection of argon to generate conductive hyperbranched polymer powder. The modified polyamide-amine is rheologically prepared into a film with formamide as a solvent, and the energy storage latex is sprayed on the surface of the film at the same time, pressed by a pressure roller, and quickly dried with heat radiation and infrared assistance to make an electrode sheet.

Embodiment 2

[0035]Mix the graphene powder and adhesive obtained by the modified hummers method in an agate mortar, grind them evenly, adjust the viscosity to 600-1000mpa.s with a solvent, and prepare energy storage latex for later use; Coating on the base polyester material first, adding aniline dissolved in an acidic solution, and making a polyaniline film through chemical polymerization rheology, compounding the film with energy storage latex, applying pressure through a pressure roller, and using heat radiation, Infrared assisted rapid drying to make electrode sheets.

[0036] The electrode sheet obtained in Example 1 was tested by cyclic voltammetry, and the CV scanning speed was 0.000001 V / s to 10000 V / s. see results figure 1 , the CV curve of the energy storage capacitor, showing that a larger current density can be generated in a wider voltage range.

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Abstract

The invention relates to a preparation method of a graphene-containing energy storage polymer electrode sheet. Graphene and a polymer are assembled on-line into the energy storage polymer electrode sheet. The method comprises the steps that the graphene is prepared; the graphene and an adhesive are mixed and uniformly ground to acquire energy storage latex; a monomer, an initiator and an additive are mixed and pre-polymerized to form a low-molecular prepolymer; the prepolymer is dissolved or melted to form a polymer film or sheet; the energy storage latex is sprayed or coated on-line on the polymer film or sheet, and compositing into an energy storage sheet is carried out; the energy storage sheet is dried; and the dried energy storage sheet is cut and clip into the electrode sheet. The preparation method provided by the invention has the advantages of simple electrode sheet preparation process, low cost, and recycled and reused product.

Description

technical field [0001] The invention belongs to the field of material science, and relates to a method for preparing a graphene-containing energy storage polymer electrode sheet. Background technique [0002] Modern technological societies require the use and storage of energy on a large scale, for which systems large and small are used. Electrical energy can be stored in two distinct ways, one indirectly as potentially usable chemical energy, stored in batteries, which requires induced current oxidation and reduction of electrochemically active reactants; the other A direct way is to induce current, and to store electrical energy by placing charges between different plates of the capacitor in the form of electrostatics. [0003] There is a big difference in reversibility between systems with induced current and non-induced current. When the capacitor stores electric energy, it starts to discharge if the charge is too much, and starts to charge when the charge is too little...

Claims

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Application Information

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IPC IPC(8): H01G11/86
CPCY02E60/13H01G11/86
Inventor 高炜斌马立波李珊珊熊煦陆红霞李秀华徐亮成张枝苗陈晓松王自瑛薛叙明
Owner CHANGZHOU VOCATIONAL INST OF ENG
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