Preparation method of rubidium doped polymer solid electrolyte membrane

A solid electrolyte membrane and polymer technology, applied in the direction of electrolyte immobilization/gelation, circuits, electrical components, etc., can solve the problems of improved mechanical properties, low electrical conductivity, complicated preparation process, etc. The effect of increasing the surface area and enhancing practicality

Active Publication Date: 2019-10-25
光鼎铷业(广州)集团有限公司
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods have improved the electrical conductivity to a certain extent, but have not improved the mechanical properties, and the preparation process is complicated, which has high requirements for the manufacturing process.
CN108336398A discloses an organic-inorganic composite solid electrolyte, wherein the inorganic solid electrolyte provides a certain mechanical strength, but the inorganic solid electrolyte is difficult to dispe

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
  • Preparation method of rubidium doped polymer solid electrolyte membrane
  • Preparation method of rubidium doped polymer solid electrolyte membrane
  • Preparation method of rubidium doped polymer solid electrolyte membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a rubidium-doped polymer solid-state electrolyte membrane, comprising the following steps:

[0024] Step 1, mixing polyvinyl carbonate and ethanol at a mass ratio of 1:9, adding 1 wt% diisocyanate relative to polyvinyl carbonate, and stirring at room temperature for 1 h to obtain an alcoholic solution of polyvinyl carbonate;

[0025] Step 2, adding rubidium nitrate to the alcohol solution of polyvinyl carbonate, controlling the mass ratio of rubidium nitrate to polyvinyl carbonate to be 0.01:0.99, and stirring at room temperature for 1 hour to obtain a mixed solution of polyvinyl carbonate and rubidium nitrate;

[0026] Step 3, soak the polyethylene diaphragm with a porosity of 42% and a thickness of 9um in the mixed solution of polyethylene carbonate and rubidium nitrate for 10 minutes, and take it out at 400mJ / cm 2 UV irradiated for 2 hours to obtain a polyethylene diaphragm with a layer of cross-linked polyethylene carbonate attached to the sur...

Embodiment 2

[0029] A method for preparing a rubidium-doped polymer solid-state electrolyte membrane, comprising the following steps:

[0030] Step 1, mixing polyethylene oxide and ethanol at a mass ratio of 2:8, and adding 2wt% diisocyanate relative to polyethylene oxide, stirring at room temperature for 1 h to obtain an alcohol solution of polyethylene oxide;

[0031] Step 2, adding rubidium chloride to the alcohol solution of polyethylene oxide, controlling the mass ratio of rubidium chloride to polyethylene oxide to be 0.05:0.95, stirring at room temperature for 1h, obtaining polyethylene oxide and polyethylene oxide rubidium chloride mixed solution;

[0032] Step 3, soak the polyethylene diaphragm with a porosity of 42% and a thickness of 9um in the mixed solution of polyethylene oxide and rubidium chloride for 10 minutes, and take it out at 400mJ / cm 2 UV irradiated for 2 hours to obtain a polyethylene diaphragm with a layer of cross-linked polyethylene oxide attached to the surface;...

Embodiment 3

[0035] A method for preparing a rubidium-doped polymer solid-state electrolyte membrane, comprising the following steps:

[0036] Step 1, mixing polyacrylonitrile and acetonitrile in a mass ratio of 2:8, adding 1 wt% divinylbenzene relative to polyacrylonitrile, and stirring at room temperature for 1 h to obtain an organic solution of polyacrylonitrile;

[0037] Step 2, rubidium sulfate is added in the organic solution of polyacrylonitrile, the mass ratio of controlling rubidium sulfate and polyacrylonitrile is 0.1:0.9 After stirring at room temperature for 1h, a mixed solution of polyacrylonitrile and rubidium sulfate is obtained;

[0038] Step 3, soak the polyethylene diaphragm with a porosity of 42% and a thickness of 9um in the mixed solution of polyacrylonitrile and rubidium sulfate for 10min, and take it out at 400mJ / cm 2 UV irradiation for 2 hours to obtain a polyethylene diaphragm with a layer of cross-linked polyacrylonitrile attached to the surface;

[0039] Step 4,...

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
Login to view more

Abstract

The invention relates to a preparation method of a rubidium doped polymer solid electrolyte membrane, which is characterized in that a rubidium compound and polymer solid electrolyte solution are uniformly mixed and applied to the surface of a polyolefin membrane by dip-coating. The rubidium ions in the polymer solid electrolyte membrane have a larger particle radius than lithium ions, and a large-aperture ion channel is formed in the polymer solid electrolyte membrane. Lithium ions can be quickly de-intercalated. The conductivity and cycle performance of the polymer solid electrolyte membraneare improved. In addition, the matrix polyolefin membrane can provide good mechanical strength for the polymer solid electrolyte membrane, and is more practical.

Description

technical field [0001] The invention belongs to the field of new energy materials, and in particular relates to a preparation method of a rubidium-doped polymer solid-state electrolyte membrane. Background technique [0002] Compared with traditional lithium batteries, the most prominent advantage of solid-state electrolyte batteries is safety. The liquid electrolyte is flammable and explosive, and the growth of lithium dendrites during the charging process can easily pierce the separator, causing a short circuit in the battery and causing a safety hazard. The solid-state electrolyte is non-flammable, non-corrosive, non-volatile, and there is no leakage problem, so all-solid-state batteries have extremely high safety. Polymer solid electrolytes are more popular than inorganic solid electrolytes due to their better compatibility with electrodes and lower interfacial impedance. However, due to the low conductivity and poor mechanical properties of polymer solid electrolytes,...

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): H01M10/0565H01M10/0525H01M10/42
CPCH01M10/0525H01M10/0565H01M10/4235H01M2300/0085Y02E60/10
Inventor 唐浩林王仲明陈智伟陈志华詹心泉
Owner 光鼎铷业(广州)集团有限公司
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