Unlock instant, AI-driven research and patent intelligence for your innovation.

Polymer electrolyte as well as preparation method and application thereof

A polymer and electrolyte technology, which is applied in the manufacture of electrolyte batteries, non-aqueous electrolyte batteries, circuits, etc., can solve the problems of restricting the development of polymer electrolytes, low room temperature ionic conductivity, narrow electrochemical window, etc., and achieve high migration number, The effect of high ionic conductivity and wide electrochemical window

Active Publication Date: 2022-04-26
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polymer electrolytes have broad application prospects in lithium metal batteries, the low room temperature ionic conductivity and narrow electrochemical window have restricted the development of polymer electrolytes.

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
  • Polymer electrolyte as well as preparation method and application thereof
  • Polymer electrolyte as well as preparation method and application thereof
  • Polymer electrolyte as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0067] This experimental example provides a polymer electrolyte. The raw materials of the polymer electrolyte include a polymer precursor, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (XBPO) and bistrifluoromethane Lithium sulfonyl imide (LiTFSI); the molar ratio of the polymer precursor and lithium trifluoromethanesulfonyl imide is 7:20, and the phenyl bis(2,4,6-trimethylbenzyl The molar ratio of acyl)phosphine oxide to the polymer precursor is 0.006:1, and the polymer precursor includes 1-allyl-1-methylpyrrolidinium bis(trifluoromethanesulfonate) in a molar ratio of 10.5:2 acyl)imide (IL) and 1,6-bis(acryloyloxy)-2,2,3,3,4,4,5,5-octafluorohexane (OFHDDA).

[0068] This experimental example provides a method for preparing the polymer electrolyte, and the specific steps include:

[0069] According to the formulation amount, the 1-allyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide, 1,6-bis(acryloyloxy)-2,2,3,3 , 4,4,5,5-octafluorohexane, phenylbis(2,4,6-trimet...

Embodiment 1

[0076] This embodiment provides a polymer electrolyte. The raw materials of the polymer electrolyte include a polymer precursor, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (XBPO) and bistrifluoromethane Lithium sulfonyl imide (LiTFSI); the molar ratio of the polymer precursor and lithium trifluoromethanesulfonyl imide is 7:20, and the phenyl bis(2,4,6-trimethylbenzyl The molar ratio of acyl)phosphine oxide to the polymer precursor is 0.006:1, and the polymer precursor includes 4-vinyl-1,3-dioxolan-2-one in a molar ratio of 3:8.5:2 (VEC), 1-allyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (IL) and 1,6-bis(acryloyloxy)-2,2,3,3 , 4,4,5,5-Octafluorohexane (OFHDDA).

[0077] This embodiment provides a method for preparing the polymer electrolyte, and the specific steps include:

[0078] According to the formulation amount, the 4-vinyl-1,3-dioxolane-2-ketone, 1-allyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide, 1 , 6-bis(acryloyloxy)-2,2,3,3,4,4,5...

Embodiment 2

[0080] This embodiment provides a polymer electrolyte, which differs from Embodiment 1 only in that the content of the 4-vinyl-1,3-dioxolan-2-one is increased, so that the VEC:IL: The molar ratio of OFHDDA is 7:8.5:2, and other raw materials, dosage and preparation method are the same as in Example 1.

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

No PUM Login to View More

Abstract

The invention provides a polymer electrolyte as well as a preparation method and application thereof. The raw materials of the polymer electrolyte comprise a polymer precursor, an initiator and a lithium salt, the polymer precursor comprises an alkenyl-containing ionic liquid monomer, a fluorinated alkene monomer and a cyclic alkene carbonate monomer. And carrying out polymerization reaction on the polymer precursor, an initiator and a lithium salt to obtain the polymer electrolyte. In the raw materials of the polymer electrolyte, a combination of an alkenyl-containing ionic liquid monomer, a fluorinated alkene monomer and a cyclic alkene carbonate monomer is selected, and lithium salt is matched for use, so that the polymer electrolyte is high in room-temperature ionic conductivity, wide in electrochemical window and high in transference number; comprising the polymer electrolyte is high in capacity and good in cycling stability.

Description

technical field [0001] The invention belongs to the technical field of all-solid batteries, and in particular relates to a polymer electrolyte and its preparation method and application. Background technique [0002] With the increasing demand for higher energy density of energy storage materials for electrified transportation, and the development of traditional lithium-ion batteries is approaching the bottleneck, improving the energy density of lithium-ion batteries has become an urgent problem in this field. [0003] Lithium metal batteries have a high theoretical specific capacity (~3860mAh g -1 ) and lower electrochemical potential (3.04Vvs.NHE), is recognized as the "holy grail" of rechargeable batteries. The performance of lithium metal batteries is closely related to the electrolyte. Electrolytes in lithium metal batteries include organic liquid electrolytes, solid inorganic electrolytes, and polymer electrolytes. For example, CN113644315A discloses an electrolyte ...

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): H01M10/0566H01M10/058H01M10/052
CPCH01M10/0566H01M10/058H01M10/052Y02P70/50Y02E60/10
Inventor 唐凌飞陈博文陈琪陈立桅
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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