Check patentability & draft patents in minutes with Patsnap Eureka AI!

Gel polymer electrolyte and preparation method thereof

A gel polymer, electrolyte technology, applied in the direction of electrolyte immobilization/gelation, circuits, electrical components, etc., can solve problems such as low conductivity

Inactive Publication Date: 2014-06-04
OCEANS KING LIGHTING SCI&TECH CO LTD +2
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, gel polymer electrolytes have low conductivity

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gel polymer electrolyte and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] see figure 1 , the preparation method of above-mentioned gel polymer electrolyte, comprises the following steps:

[0027] Step S210, dissolving polyacrylonitrile in an organic solvent, stirring evenly, adding titanate, stirring evenly at 30°C to 50°C to form a slurry, wherein the mass ratio of polyacrylonitrile to titanate is 1:0.05 ~0.15, the titanate is at least one selected from barium titanate, strontium titanate, lead titanate and calcium titanate.

[0028] Preferably, the mass ratio of polyacrylonitrile to organic solvent is 1:2-1:4.

[0029] Preferably, the weight average molecular weight of polyacrylonitrile is 10,000-300,000.

[0030] Preferably, the organic solvent is at least one selected from N-methylpyrrolidone, N,N-dimethylformamide, acetonitrile and ethanol.

[0031] Step S220, coating the obtained slurry to form a film, and drying to obtain a gel matrix.

[0032] Preferably, the slurry is vacuum dried to remove the organic solvent.

[0033] Preferab...

Embodiment 1

[0044] The preparation method of the gel polymer electrolyte in this embodiment includes the following steps:

[0045] (1) Preparation of gel matrix:

[0046] Weigh 10g of PAN (polyacrylonitrile) with a weight average molecular weight of 100,000, dissolve it in 25g of N-methylpyrrolidone, stir well, then add 1.0g of barium titanate (BaTiO 3 ), then the temperature was raised to 40° C. and the stirring was continued to disperse the solution evenly to obtain a slurry. The obtained slurry was evenly coated on a clean glass plate, and vacuum-dried at a temperature of 90° C. and a pressure of 0.01 MPa to obtain a gel matrix with a thickness of 80 μm.

[0047] (2) Preparation of gel polymer electrolyte:

[0048] Put the gel matrix into a glove box full of argon, and immerse it in the electrolyte of 100ml 1.0mol / L lithium bisoxalate borate, the solvent in the electrolyte is ethylene carbonate and diethyl carbonate The mixed solvent, the volume ratio of ethylene carbonate and dieth...

Embodiment 2

[0050] The preparation method of the gel polymer electrolyte in this embodiment includes the following steps:

[0051] (1) Preparation of gel matrix:

[0052] Weigh 10g of PAN (polyacrylonitrile) with a weight average molecular weight of 10,000, dissolve it in 20g of acetonitrile, stir well, then add 0.5g of strontium titanate (SrTiO 3 ), then the temperature was raised to 30° C. and the stirring was continued to disperse the solution evenly to obtain a slurry. The obtained slurry was evenly coated on a clean glass plate, and vacuum-dried at a temperature of 80° C. and a pressure of 0.01 MPa to obtain a gel matrix with a thickness of 150 μm.

[0053] (2) Preparation of gel polymer electrolyte:

[0054] Put the gel matrix into a glove box full of argon, and immerse it in the electrolyte of 100ml 0.5mol / L lithium bisoxalate borate, the solvent in the electrolyte is ethylene carbonate and diethyl carbonate The mixed solvent, the volume ratio of ethylene carbonate and diethyl c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a gel polymer electrolyte, which comprises a gel matrix and an electrolyte solution adsorbed in the gel matrix. The gel matrix is titanate doped polyacrylonitrile. The polyacrylonitrile and the titanate are in a mass ratio of 1:0.05-0.15, the titanate is at least one of barium titanate, strontium titanate, lead titanate and calcium titanate, the electrolyte solution is formed by dissolving lithium bis(oxalate)borate in ethylene carbonate and diethyl carbonate, and the gel matrix and the electrolyte solution are in a mass ratio of 2:3-7:3. The gel polymer electrolyte has high electrical conductivity. The invention also provides a preparation method of the gel polymer electrolyte.

Description

technical field [0001] The invention relates to a gel polymer electrolyte and a preparation method thereof. Background technique [0002] Gel polymer electrolyte lithium-ion batteries have been valued by researchers because of their safety, no leakage, and low leakage current. Gel polymer electrolyte is a new type of functional polymer material, which can be used as a separator and electrolyte material at the same time, which can make the battery thinner, thereby improving the flexibility of battery design. Currently, gel polymer electrolytes have low conductivity. Contents of the invention [0003] Based on this, it is necessary to provide a gel polymer electrolyte with high conductivity and a preparation method thereof. [0004] A gel polymer electrolyte, including a gel matrix and an electrolyte adsorbed in the gel matrix, the gel matrix is ​​polyacrylonitrile doped with titanate, the polyacrylonitrile and the The mass ratio of titanate is 1:0.05~0.15, the titanate i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M10/0565
CPCH01M10/0525H01M10/0565H01M2300/0085Y02E60/10
Inventor 周明杰刘大喜王要兵钟玲珑
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com