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Hyperbranched bifunctional star-shaped compound, polymer electrolyte material, preparation of hyperbranched bifunctional star-shaped compound and polymer electrolyte material, and application of hyperbranched bifunctional star-shaped compound

A technology for electrolyte materials and compounds, which is applied in the field of polymer electrolyte materials, preparation and application, hyperbranched bifunctional star compounds, and can solve the problems of high brittleness, poor film formation of electrolyte materials, and low ionic conductivity.

Inactive Publication Date: 2020-10-30
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Another object of the present invention is to provide a polymer electrolyte material, the polymer electrolyte material contains the above-mentioned hyperbranched bifunctional star compound, the polymer electrolyte material not only improves the low ion conductivity of traditional polymer electrolyte ions , and to a certain extent, it effectively solves the problems of poor film formation and high brittleness of electrolyte materials.

Method used

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  • Hyperbranched bifunctional star-shaped compound, polymer electrolyte material, preparation of hyperbranched bifunctional star-shaped compound and polymer electrolyte material, and application of hyperbranched bifunctional star-shaped compound
  • Hyperbranched bifunctional star-shaped compound, polymer electrolyte material, preparation of hyperbranched bifunctional star-shaped compound and polymer electrolyte material, and application of hyperbranched bifunctional star-shaped compound
  • Hyperbranched bifunctional star-shaped compound, polymer electrolyte material, preparation of hyperbranched bifunctional star-shaped compound and polymer electrolyte material, and application of hyperbranched bifunctional star-shaped compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Take by weighing 0.0949g photoinitiator benzophenone, 0.3985g trimethylolpropane three (3-mercaptopropionate) and polyethylene glycol of 1.5g number average molecular weight 300g / mol in oil bath Methyl ether methacrylate, and then put the above-mentioned blending system in an oil bath at 40°C for 4h under stirring conditions; among them, trimethylolpropane tris(3-mercaptopropionate) and polyethylene glycol methyl ether methacrylate The molar ratio is 1:5, and the amount of photoinitiator is 5wt.% of the total amount of trimethylolpropane tris (3-mercaptopropionate) and polyethylene glycol methyl ether methacrylate;

[0053] (2) Place the homogeneous slurry obtained in step (1) in a PTFE mould, and then irradiate the slurry required for the polymerization reaction under ultraviolet light for 5 minutes to promote the reaction between polyhydric mercapto propionate and polyethylene glycol methacrylate Polymerization to obtain a hyperbranched bifunctional star compound;...

Embodiment 2

[0057] (1) Weigh 0.0919g photoinitiator 1-hydroxycyclohexyl phenyl ketone, 0.3985g trimethylolpropane three (3-mercaptopropionate) and 1.9g number average molecular weight 475g / mol in oil bath Polyethylene glycol methyl ether methacrylate, and then the above blend system was stirred in an oil bath at 45°C for 5 hours; among them, trimethylolpropane tris(3-mercaptopropionate) and polyethylene glycol The molar ratio of methyl ether methacrylate is 1:4, and the amount of photoinitiator is 4wt.% of the total amount of trimethylolpropane tris(3-mercaptopropionate) and polyethylene glycol methyl ether methacrylate ;

[0058] (2) Place the homogeneous slurry obtained in step (1) in a PTFE mould, and then irradiate the slurry required for the polymerization reaction under ultraviolet light for 10 minutes to promote the reaction between polyhydric mercapto propionate and polyethylene glycol methacrylate The cross-linking polymerization of hyperbranched bifunctional star compound is ob...

Embodiment 3

[0062] (1) Weigh 0.0975g photoinitiator 2-hydroxyl-2-methyl-1-phenyl-acetone, 0.3985g trimethylolpropane three (3-mercaptopropionate) and 2.85g in oil bath Polyethylene glycol methyl ether methacrylate with a number average molecular weight of 950g / mol, and then the above-mentioned blending system was placed in an oil bath at 50°C for 8h under stirring conditions; among them, trimethylolpropane tris(3-mercaptopropane The molar ratio of ester) to polyethylene glycol methyl ether methacrylate is 1:3, and the amount of photoinitiator is trimethylolpropane three (3-mercapto propionate) and polyethylene glycol methyl ether methyl 3wt.% of the total amount of acrylate;

[0063] (2) Place the homogeneous slurry obtained in step (1) in a PTFE mould, and then irradiate the slurry required for the polymerization reaction under ultraviolet light for 15 minutes to promote the reaction between polyhydric mercapto propionate and polyethylene glycol methacrylate The cross-linking polymeriza...

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Abstract

The invention belongs to the field of polymer electrolyte materials of lithium ion batteries, and particularly relates to a hyperbranched bifunctional star-shaped compound, a polymer electrolyte material, preparation of the hyperbranched bifunctional star-shaped compound and the polymer electrolyte material, and application of the hyperbranched bifunctional star-shaped compound. The hyperbranchedbifunctional star-shaped compound is a star-shaped compound with a branched chain extending outwards, and is prepared by subjecting polymercaptopropionate serving as a core and polyethylene glycol methacrylate serving as an arm to photocuring under ultraviolet light to initiate a mercapto-double bond reaction. The hyperbranched bifunctional star compound can be used as a lithium ion polymer electrolyte additive, can improve the ionic conductivity of an electrolyte material and can also be used as a plasticizer to improve the mechanical properties and flexibility of the electrolyte material, and the preparation process of the compound is simple to operate and friendly to environment. The invention also provides the polymer electrolyte material containing the hyperbranched bifunctional star-shaped compound. Thus, a new research thought and method are provided for preparing high-performance lithium ion polymer electrolytes.

Description

technical field [0001] The invention belongs to the field of polymer electrolyte materials for lithium ion batteries, and in particular relates to a hyperbranched bifunctional star compound, a polymer electrolyte material and its preparation and application. Background technique [0002] At present, the rising calls for environmental protection and the increasing shortage of oil reserves around the world have drawn widespread attention to the development and utilization of new energy from all over the world, especially in the United States, Japan, and China, where the proportion of renewable energy power generation is about 10-10%. 20% of the countries have entered a new stage of energy revolution. Therefore, it is imperative to accelerate the development of clean energy, establish an efficient, clean, economical, and safe energy system, reduce the dependence of traditional automobiles and industries on fossil energy, and achieve sustainable development of new energy. In th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00H01M10/0525H01M10/0568
CPCC08G83/005H01M10/0525H01M10/0568H01M2300/0025Y02E60/10
Inventor 胡骥王万慧朱新军王春娟周扬吴婉晴殷婧燚段林珂毛豫广张子焓
Owner LUOYANG INST OF SCI & TECH
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