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Gel polymer electrolyte, preparation method for the same, super capacitor and application thereof

A gel polymer, supercapacitor technology, applied in the field of electrochemical power supply, can solve the problems of unsatisfactory effect, low battery yield, limited improvement in electrical conductivity, etc., to achieve high yield and efficiency, and improve the absorption of electrolytes. capacity, the effect of reducing production costs

Inactive Publication Date: 2014-03-26
OCEANS KING LIGHTING SCI&TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect is not very satisfactory, and the battery yield is not high
In addition, the existing gel polymer electrolytes have limited improvement in electrical conductivity, and cannot well meet the growing needs and application range of the market.

Method used

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  • Gel polymer electrolyte, preparation method for the same, super capacitor and application thereof
  • Gel polymer electrolyte, preparation method for the same, super capacitor and application thereof
  • Gel polymer electrolyte, preparation method for the same, super capacitor and application thereof

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preparation example Construction

[0022] The embodiment of the present invention provides a method for preparing a gel polymer electrolyte with a simple process. The preparation method technological process of this gel polymer electrolyte is as follows figure 1 As shown, it includes the following steps:

[0023] Step S01. Prepare viscous liquid containing PEO polymer: prepare PEO polymer and organic plasticizer to form viscous liquid;

[0024] Step S02. Casting to prepare a gel polymer electrolyte membrane: coating the viscous liquid prepared in step S01 on the diaphragm, forming a film by casting, and drying in vacuum to obtain a gel polymer electrolyte membrane;

[0025] Step S03. Immersion and adsorption electrolyte: under the protection of an inert gas, the gel polymer electrolyte membrane is immersed in a quaternary ammonium salt ionic liquid electrolyte with a concentration of 0.5-2.0 mol / L for 5-60 minutes, and taken out to obtain The gel polymer electrolyte.

[0026] Specifically, the mass ratio of ...

Embodiment 1

[0044] Gel polymer electrolyte and preparation method thereof, the preparation method of the gel polymer electrolyte comprises the following steps:

[0045] Step 11. Prepare a viscous liquid containing PEO: add 10g of PEO and 120g of NMP to the flask respectively, and stir for 8 hours under the protection of an inert gas to mix evenly to obtain a uniform and transparent viscous liquid;

[0046] Step 12. Casting to prepare the gel polymer electrolyte membrane: cast the viscous prepared in step 11 on the three-layer PP / PE / PP separator to form a film, and naturally volatilize until the film becomes white, and the vacuum degree is 0.01 at 100°C MPa vacuum drying for 48 hours to obtain a three-layer PP / PE / PP diaphragm reinforced PEO polymer substrate gel film;

[0047] Step 13. Prepare a three-layer PP / PE / PP membrane-reinforced PEO polymer-based gel film: transfer the dried PEO-based gel film to an argon-filled glove box and immerse it in 1mol / L Et 4 NBF 4 / AN electrolyte for 30...

Embodiment 2

[0052] Gel polymer electrolyte and preparation method thereof, the preparation method of the gel polymer electrolyte comprises the following steps:

[0053] Step 21. Prepare a viscous liquid containing PEO: add 10g of PEO and 50g of AN to the flask respectively, and stir for 10 hours under the protection of an inert gas to mix evenly to obtain a uniform and transparent viscous liquid;

[0054] Step 22. Preparation of gel polymer electrolyte membrane by casting: cast the viscous prepared in step 21 on the three-layer PP / PE / PP diaphragm to form a film, and naturally volatilize until the film becomes white, and the vacuum degree is 0.01 at 60°C MPa vacuum drying for 24 hours to obtain a three-layer PP / PE / PP diaphragm reinforced PEO polymer substrate gel film;

[0055] Step 23. Prepare a three-layer PP / PE / PP membrane-reinforced PEO polymer-based gel film: transfer the dried PEO-based gel film to an argon-filled glove box and immerse it in 1mol / L MeEt 3 NBF 4 / PC electrolyte for...

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Abstract

This invention discloses a gel polymer electrolyte, a preparation method for the same, a super capacitor and an application thereof. The gel polymer electrolyte preparation method includes steps of preparing viscous liquid containing PEO polymer, preparing gel polymer dielectric films through curtain coating and dipping and absorbing the electrolyte. The super capacitor contains the gel polymer electrolyte. The preparation method for the gel polymer electrolyte is simple in preparation, mature in technology and high in rate of finish products and efficiency, and effectively reduces the production cost. The gel polymer electrolyte prepared by the method has strong mechanical strength and high conductivity. The super capacitor containing the gel polymer electrolyte is high in the rate of finished products and low in production cost, and has excellent chemical properties and expands the application range of the super capacitor.

Description

technical field [0001] The invention belongs to the technical field of electrochemical power sources, and in particular relates to a gel polymer electrolyte, a preparation method thereof, a supercapacitor and applications thereof. Background technique [0002] Supercapacitor is a new type of energy device between rechargeable batteries and capacitors. It has the advantages of small size, large capacity, fast charging speed, long cycle life, high discharge efficiency, wide operating temperature range, good reliability, pollution-free and maintenance-free It is a new type, efficient and practical energy storage device, so it is widely used in military fields, mobile communication devices, computers, and hybrid power sources for electric vehicles. [0003] The working electrolyte of supercapacitor is divided into aqueous electrolyte, organic liquid electrolyte and polymer electrolyte. The decomposition voltage of aqueous electrolyte is low, so there are few studies. The curre...

Claims

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Application Information

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IPC IPC(8): H01G9/022
CPCY02E60/13
Inventor 周明杰刘大喜王要兵
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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