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Gel polymer electrolyte preparation method based on 3D printing technology

A gel polymer, 3D printing technology, used in circuits, electrical components, secondary batteries, etc., can solve the problem of low electrolyte strength, and achieve the effect of high uniformity of network pores, improved strength, and strong liquid retention capacity.

Inactive Publication Date: 2018-11-23
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the defect that the strength of the existing gel polymer electrolyte is not high, the present invention proposes a preparation method of the gel polymer electrolyte based on 3D printing technology, and constructs a three-dimensional inorganic skeleton network structure through a fast and reliable process plan, so that the electrolyte's The strength has been greatly improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) When the ceramic material is used as a porous network structure skeleton, 84% of the silicon carbide ceramic precursor powder, 5% of the surfactant polyethylene glycol, 5% of the organic solvent methanol, 1% Inorganic binder sodium silicate solution and 5% low-temperature curing agent silica sol are used as raw materials, which are rapidly molded on a 3D printer to form a porous network structure skeleton;

[0025](2) Put the skeleton of the porous network structure into a mixture containing 5% crosslinking agent triethylamine, 0.5% initiator dibenzoyl peroxide and 20% methyl methacrylate monomer anisole In the solution, immerse for 5 hours to make the surface completely covered with methyl methacrylate monomer. After taking it out, it was dried in vacuum at high temperature, the vacuum degree was 2 KPa, the baking temperature was 170 °C, and the baking temperature was 4 hours to induce methyl methacrylate to obtain a framework rich in polymethyl methacrylate with a...

Embodiment 2

[0029] (1) When the ceramic material is used as a porous network structure skeleton, 80% of the zirconia ceramic precursor powder, 5% of the surfactant sodium dodecylbenzene sulfonate, and 5% of the organic solvent Isopropanol, 4% inorganic binder sodium silicate solution, and 6% low-temperature curing agent aluminum sol are used as raw materials, and are rapidly molded on a 3D printer to form a porous network structure skeleton;

[0030] (2) Put the skeleton of the porous network structure into a mixture containing 3% crosslinking agent triethylamine, 0.5% initiator dibenzoyl peroxide and 10% methyl methacrylate monomer anisole In the solution, immerse for 4 hours to make the surface completely covered with methyl methacrylate monomer. After taking it out, it was dried in vacuum at high temperature with a vacuum degree of 0.2 KPa and a baking temperature of 158°C for 6 hours to induce methyl methacrylate to obtain a framework rich in polymethyl methacrylate with a pore size o...

Embodiment 3

[0034] (1) When the ceramic material is used as a porous network structure skeleton, 85% of the aluminum nitride ceramic precursor powder, 2% of the surfactant sodium lignosulfonate, 2% of the organic solvent ethanol, 1% inorganic binder sodium silicate solution and 10% low-temperature curing agent aluminum sol are used as raw materials, and are rapidly formed on a 3D printer to form a porous network structure skeleton;

[0035] (2) Put the porous network structure skeleton into the preparation of a mixed solution containing 4% crosslinking agent triethylamine, 0.5% initiator dibenzoyl peroxide and 14% methyl methacrylate monomer anisole by mass respectively In the middle, soak for 3.3h to make its surface completely covered with methyl methacrylate monomer. After taking it out, it is dried in vacuum at high temperature with a vacuum degree of 0.8KPa and a baking temperature of 170°C for 2 hours to induce methyl methacrylate to obtain a framework rich in polymethyl methacrylat...

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Abstract

The invention provides a gel polymer electrolyte preparation method based on a 3D printing technology. The 3D printing technology is used for printing a framework with a network structure inside; theframework is put into a methyl methacrylate monomer mixed solution comprising a cross-linking agent and an initiator to be dipped for a period of time; a vacuum high-temperature condition is adopted for initiation cross linking of methyl methacrylate; and the obtained framework rich in polymethyl methacrylate is immersed in an electrolyte solution for a period of time, so as to obtain a framework-reinforced gel polymer electrolyte. The framework is obtained through 3D printing, so that size of the gaps of the framework can be adjusted and controlled, the three-dimensional net structure, formedby crosslinking polymerization with polymethyl methacrylate, can form a relatively stable structure; and therefore, when the gel polymer electrolyte is formed, the strength of the electrolyte is greatly improved by the framework material, thereby overcoming the defect that an existing gel polymer electrolyte is not high in strength.

Description

technical field [0001] The invention relates to the field of solid polymer electrolyte materials, in particular to a method for preparing a gel polymer electrolyte based on 3D printing technology. Background technique [0002] With the depletion of major natural resources such as coal and oil, the excessive consumption of fossil fuels has resulted in excessive carbon dioxide emissions, resulting in increasingly serious problems of pollution and traffic congestion in major cities, and it is urgent for us to find higher-level clean energy. Lithium-ion batteries have the advantages of high voltage, high energy density, small self-discharge, no memory effect, wide operating temperature range, long cycle life and environmental friendliness. Favored by large energy sources such as energy storage and powered vehicles. [0003] As an important part of the lithium-ion battery, the electrolyte plays the role of transporting ions and conducting current between the positive and negativ...

Claims

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Application Information

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IPC IPC(8): H01M10/0565
CPCH01M10/0565Y02E60/10
Inventor 陈庆赵海林
Owner CHENDU NEW KELI CHEM SCI CO LTD
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