Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Boron trifluoride salt ternary electrolyte and preparation and application thereof

A boron trifluoride, electrolyte technology, applied in chemical instruments and methods, circuits, organic chemistry, etc., can solve problems such as correlation or inference uncertainty, achieve electrochemical performance improvement, widen electrochemical window, The effect of improving cycle performance

Inactive Publication Date: 2022-06-03
BEIJING WELION NEW ENERGY TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of structure is special, it has a chain structure and three-OBF 3 Compounds in which M is attached to two or three atoms of the ring are so different in structure and properties that their relationship or inference to each other is uncertain

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
  • Boron trifluoride salt ternary electrolyte and preparation and application thereof
  • Boron trifluoride salt ternary electrolyte and preparation and application thereof
  • Boron trifluoride salt ternary electrolyte and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiment 1: raw material M1

[0072] Preparation method: under nitrogen atmosphere, mix 0.01mol raw material and boron trifluoride tetrahydrofuran complex (4.19g, 0.03mol) in 15ml ethylene glycol dimethyl ether, and react at room temperature for 12 hours. The obtained mixed solution was dried under reduced pressure at 40° C. and a vacuum degree of about -0.1 MPa to remove the solvent to obtain an intermediate. Dissolve lithium ethoxide (1.56g, 0.03mol) in 10ml of ethanol and slowly add it to the intermediate, stir and react at 45°C for 10 hours, and dry the resulting mixture under reduced pressure at 40°C and vacuum degree of about -0.1MPa , the obtained solid was washed three times with n-butyl ether, filtered and dried to obtain the product M1, wherein, Q is OBF 3 Li. Yield was 91%, NMR such as figure 1 shown.

Embodiment 2

[0073] Embodiment 2: raw material M2

[0074] Preparation method: under argon atmosphere, mix 0.01mol of the raw material and boron trifluoride etherate complex (4.26g, 0.03mol) in 15ml of THF, and react at room temperature for 12 hours. The resulting mixed solution was dried under reduced pressure at 30° C. and a vacuum of about −0.1 MPa to remove the solvent to obtain an intermediate. Add 18.90ml of butyllithium hexane solution (c=1.6mol / L) to the intermediate, stir and react at room temperature for 6 hours, and dry the resulting mixture under reduced pressure at 40°C and a vacuum of about -0.1MPa , the obtained crude product was washed 3 times with cyclohexane, filtered and dried to obtain product M2, wherein Q was OBF 3 Li. The yield was 87%, NMR such as figure 2 shown.

Embodiment 3

[0075] Embodiment 3: raw material M3

[0076] Preparation method: Under a nitrogen atmosphere, take 0.01mol of the raw material and lithium methoxide (1.14g, 0.03mol), mix well with 20ml of methanol, and react at room temperature for 8 hours. The obtained mixed solution was dried under reduced pressure at 40° C. and a vacuum degree of about -0.1 MPa to remove the solvent to obtain an intermediate. Add boron trifluoride tetrahydrofuran complex (4.19g, 0.03mol) and 15ml THF to the intermediate, stir and react at room temperature for 9 hours, and depressurize the resulting mixture at 30°C and vacuum degree of about -0.1MPa After drying, the obtained solid was washed three times with isopropyl ether, filtered, and dried to obtain product M3, wherein Q was OBF 3 Li. Yield 87%.

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The present invention relates to a boron trifluoride salt ternary electrolyte and preparation and application thereof, the electrolyte comprises a boron trifluoride salt represented by the following general formula I: in the general formula I, a ring is represented, and the ring comprises a single ring or a multi-ring formed by at least two single rings; m is a metal cation; e4 and E5 are independently chains without or containing at least one atom; e1, E2 and E3 are independently null, a chain structure containing at least one atom or a structure containing a ring; r is a substituent. Three-OBF3M groups exist in the structure of the boron trifluoride salt, and preferably, OBF3M is connected with a carbon atom C. The boron trifluoride salt can be used as an additive, and the electrolyte can be applied to a liquid battery, a mixed solid-liquid battery, a semi-solid battery, a gel battery, a quasi-solid battery and an all-solid battery, and has a good effect.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a boron trifluoride salt-based ternary electrolyte and its preparation and application. Background technique [0002] Electrolyte is an important and necessary component of batteries. Batteries have the advantages of high energy density, high voltage, many cycles, and long storage time. Since their commercialization, they have been widely used in electric vehicles, energy storage power stations, drones, and portable devices. Regardless of the application direction, there is an urgent need to improve the energy density and cycle performance of batteries on the premise of ensuring battery safety. [0003] The currently developed liquid batteries mainly include positive electrodes, negative electrodes, electrolytes, and diaphragms. To increase the energy density of batteries is to increase the working voltage and discharge capacity of batteries, that is, to match high-voltage, hig...

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): H01M10/0567H01M10/0525C07F5/02
CPCH01M10/0525H01M10/0567C07F5/022Y02P70/50
Inventor 俞会根杨萌
Owner BEIJING WELION NEW ENERGY TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com