Auto-doped gel polymer electrolyte and preparation method thereof

A gel polymer, self-doping technology, used in circuits, electrical components, secondary batteries, etc., to overcome easy agglomeration, improve film formation and dimensional stability.

Inactive Publication Date: 2015-04-01
SOUTHWEST PETROLEUM UNIV
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relevant research has not yet appeared in domestic and foreign reports

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
  • Auto-doped gel polymer electrolyte and preparation method thereof
  • Auto-doped gel polymer electrolyte and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] (1) Preparation of self-doped methyl methacrylate polymer: Measure 50ml methyl methacrylate and 9.7ml vinyltrimethoxysilane (molar ratio is 5:1), weigh the total mass of reactants 2wt. % of azobisisobutyronitrile were placed in a 250ml beaker, and then 150ml of toluene solvent was measured and placed in the beaker, fully stirred until dissolved and mixed evenly. Raise the temperature to 80°C, pass nitrogen gas, reflux cold water, and mechanically stir for 10 hours to obtain a light yellow slurry. After cooling to room temperature, transfer it to a beaker filled with deionized water to precipitate a light yellow colloidal solid polymer. Using toluene as the solution and deionized water as the precipitating agent, the colloidal substance was repeatedly dissolved and precipitated three times to obtain a white colloidal solid polymer. The obtained colloidal polymer was dried in an oven at 100°C for 24 hours, taken out and crushed to obtain a white powder substance, and then...

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
electrical conductivityaaaaaaaaaa
electrical conductivityaaaaaaaaaa
Login to view more

Abstract

The invention relates to an auto-doped gel polymer electrolyte and a preparation method thereof. The auto-doped gel polymer electrolyte is characterized by comprising the following steps: firstly, preparing an auto-doped polymer, specifically adding monomers while controlling the molar ratio of the added monomers to carbon-carbon double bonds in siloxane to be (5:1) to (1:5), reacting at 70-80 DEG C for 7-12 hours by taking 2wt.% azodiisobutyronitrile as a catalyst and methylbenzene as a solvent, acidifying with 1.5-2.0vl.% of hydrochloric acid solution for 3-5 hours, finally introducing nitrogen at 120 DEG C and processing for 24-30 hours; and secondly, preparing the auto-doped gel polymer electrolyte from the prepared polymer as a base body, wherein the adding amounts of the polymer, the organic solvent and the liquid electrolyte are respectively 3-7g, 50ml and 7-3g. The auto-doped gel polymer electrolyte has the beneficial effects that the inorganic packing is introduced to the polymer in a chemical bond connection manner, so that the problems that additionally added packing is easy to agglomerate and difficult to disperse are thoroughly overcome; novel base bodies of gel polymer electrolyte are developed; the film-forming property and the dimensional space stability of the gel polymer electrolyte are improved; and a certain foundation is laid for application of the gel polymer electrolyte in practical production.

Description

technical field [0001] The invention relates to a self-doping gel polymer electrolyte and a preparation method thereof, belonging to the technical field of lithium ion batteries. Background technique [0002] At present, liquid electrolytes are commonly used in lithium-ion battery products, because this electrolyte has good ion conductivity and compatibility with electrodes, and is low in cost. However, this electrolyte has a series of problems such as leakage, explosion, and combustion. safe question. Therefore, polymer solid-state electrolytes emerged as the times require. This electrolyte completely solves the safety problem, but it has problems such as low ion conductivity and high cost. The production technology of solid polymer electrolyte lithium-ion battery products is monopolized, and only a few super-large lithium-ion battery manufacturers in the world can launch such battery products, which are expensive and are almost only used in Apple's digital products, and c...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0565H01M10/0567
CPCH01M10/0565H01M10/0567Y02E60/10
Inventor 黄韵杨满李洋林元华龚胜东陈肖李星唐水花周莹
Owner SOUTHWEST PETROLEUM UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap