A polyarylether/hydrophilic resin composite diaphragm for supercapacitor and preparation method thereof

A technology of hydrophilic resin and supercapacitor, which is applied in the manufacture of hybrid capacitor separators and hybrid/electric double layer capacitors, and can solve the problem of low ion conductivity

Active Publication Date: 2016-09-07
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ionic conductivity of the polymer electrolyte at room temperature is low due to the low liquid absorption

Method used

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  • A polyarylether/hydrophilic resin composite diaphragm for supercapacitor and preparation method thereof
  • A polyarylether/hydrophilic resin composite diaphragm for supercapacitor and preparation method thereof
  • A polyarylether/hydrophilic resin composite diaphragm for supercapacitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of polyarylether / hydrophilic resin composite diaphragm:

[0041] Weigh 0.7500 g of bromomethyl polyarylether sulfone and place it in a 50 mL Erlenmeyer flask, add 5 mL of N,N-dimethylacetamide, and stir mechanically for 4 hours to obtain bromomethyl polyarylether sulfone solution; Put 0.2500 g of polyvinylpyrrolidone with an average molecular weight of 58,000 in a 50 mL conical flask, add 5 mL of N,N-dimethylacetamide, and stir mechanically for 4 hours to obtain a hydrophilic resin solution; The solution was mixed with the hydrophilic resin solution, mechanically stirred for 8 hours, and the two solutions were mixed evenly to obtain a mixed solution of bromomethyl polyarylether sulfone / hydrophilic resin, and the mixed solution was cast on a clean and flat glass plate surface, Dry in a vacuum oven at 60°C, 80°C, and 100°C for 8 hours, and then vacuum-dry at 120°C to obtain a bromomethyl polyarylether sulfone / hydrophilic resin composite film; bromomethyl p...

Embodiment 2

[0048] Change the mass of bromomethyl polyarylether sulfone in step (1) of Example 1 to 0.5000g, dissolve it in 5mL N,N-dimethylacetamide; the mass of polyvinylpyrrolidone with a weight average molecular weight of 58000 becomes 0.5000 g, dissolved in 5mL N,N-dimethylacetamide; the remaining steps were as described in Example 1 to obtain a stacked supercapacitor.

Embodiment 3

[0050] Change the mass of bromomethyl polyarylether sulfone in step (1) of Example 1 to 0.2500g, dissolve it in 5mL N,N-dimethylacetamide; the mass of polyvinylpyrrolidone with a weight average molecular weight of 58000 becomes 0.7500g , dissolved in 5mL N,N-dimethylacetamide; the remaining steps were as described in Example 1 to obtain a stacked supercapacitor.

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Abstract

A polyarylether / hydrophilic resin composite diaphragm for supercapacitors and a preparation method thereof belong to the technical field of supercapacitors. It is to blend the bromomethyl polyarylether solution with the hydrophilic resin solution, cast it on a clean and tidy glass plate, and dry it in a vacuum oven to form a film; the obtained bromomethyl polyarylether / hydrophilic resin The resin composite membrane is further ammonized and basified, and the residual lye in the membrane is washed with deionized water to finally obtain a polyarylether / hydrophilic resin composite membrane. The supercapacitor manufactured by the polyarylether / hydrophilic resin composite diaphragm prepared by the present invention improves the adsorption capacity of the electrolyte, reduces the contact resistance, improves the ion conductivity, improves the mass specific capacitance, and avoids a large amount of electrolysis The high weight and large volume of the supercapacitor monomer brought by the liquid improves the safety of the supercapacitor, which is beneficial to the saving of assembly space, and has a wide range of potential application values ​​in the fields of electronic equipment and hybrid vehicles.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, and in particular relates to a polyarylether / hydrophilic resin composite diaphragm for supercapacitors and a preparation method thereof. Background technique [0002] The emergence and development of new energy has promoted the improvement of chemical power technologies such as lithium-ion batteries, fuel cells, and supercapacitors. Supercapacitor is a new type of energy storage element between secondary batteries and traditional electrostatic capacitors. Due to its high power density, long cycle life, and no pollution to the environment, it is used in many fields such as electronics, communications, transportation, and aerospace. This field has great application value and prospect. However, at present, supercapacitors for industrial applications are still dominated by liquid electrolytes. A large amount of liquid electrolytes increases the volume of supercapacitors, and there are safety...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/12C08J5/18C08L81/06C08L71/08C08L71/02C08L39/06H01G11/52H01G11/84
CPCY02E60/13
Inventor 王贵宾霍鹏飞卢春华张兴瑞张淑玲姜振华
Owner JILIN UNIV
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