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

A kind of preparation method and application of less fluorine porous titanium carbide Miconene

A technology of titanium carbide miconene and hydrofluoric acid, applied in structural parts, electrical components, battery electrodes, etc., can solve problems such as poor safety, low Coulombic efficiency, and poor cycle stability, and achieve low cost, easy operation, and high performance. excellent effect

Inactive Publication Date: 2021-09-07
FUJIAN NORMAL UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the uncontrollable dendrite growth of lithium metal anodes during cycling results in low Coulombic efficiency, poor cycle stability, and poor safety.

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
  • A kind of preparation method and application of less fluorine porous titanium carbide Miconene
  • A kind of preparation method and application of less fluorine porous titanium carbide Miconene
  • A kind of preparation method and application of less fluorine porous titanium carbide Miconene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of less fluorine porous titanium carbide Micone, comprising the following steps:

[0022] 1) Put 2gTi 3 AlC 2 Dissolve in 35 ml of concentrated hydrofluoric acid (mass concentration 37%), stir magnetically for 2 days, ultrasonically clean 3 times with deionized water and ethanol, and then dry at 60°C to obtain powder A;

[0023] 2) Disperse the above powder A into 75ml of 10M sodium hydroxide solution, stir magnetically for 2 hours, ultrasonically clean with deionized water and ethanol for 3 times, and then dry at 60°C to obtain powder B;

[0024] 3) Disperse the above powder B in 30ml deionized water to obtain a solution, transfer the solution to a stainless steel autoclave lined with polytetrafluoroethylene, and place the autoclave in a constant temperature drying oven at 175°C for 18 hours , and then ultrasonically cleaned three times with deionized water and ethanol, and finally dried at 60°C to obtain powder C;

[0025] 4) Disperse the above...

Embodiment 2

[0029] A preparation method of less fluorine porous titanium carbide Micone, comprising the following steps:

[0030] 1) Put 1gTi 3 AlC 2 Dissolve in 20ml of concentrated hydrofluoric acid (mass concentration 35%), stir magnetically for 1 day, ultrasonically clean 3 times with deionized water and ethanol, and then dry at 5°C to obtain powder A;

[0031] 2) Disperse the above powder A into 50ml of 5M sodium hydroxide solution, stir magnetically for 1 hour, ultrasonically clean with deionized water and ethanol for 3 times, and then dry at 55°C to obtain powder B;

[0032]3) Disperse the above powder B in 20ml of deionized water to obtain a solution, transfer the solution to a stainless steel autoclave lined with polytetrafluoroethylene, and place the autoclave in a constant temperature drying oven at 150°C for 20 hours , and then ultrasonically cleaned three times with deionized water and ethanol, and finally dried at 55°C to obtain powder C;

[0033] 4) Disperse the above po...

Embodiment 3

[0036] A preparation method of less fluorine porous titanium carbide Micone, comprising the following steps:

[0037] 1) Add 3gTi 3 AlC 2 Dissolve in 50 ml of concentrated hydrofluoric acid (mass concentration 40%), stir magnetically for 1-3 days, ultrasonically clean 4 times with deionized water and ethanol, and then dry at 65°C to obtain powder A;

[0038] 2) Disperse the above powder A into 100ml of 15M sodium hydroxide solution, stir it magnetically for 1-3 hours, ultrasonically clean it with deionized water and ethanol for 4 times, and then dry it at 65°C to obtain powder B;

[0039] 3) Disperse the above powder B in 40ml of deionized water to obtain a solution, transfer the solution to a stainless steel high-pressure reactor lined with polytetrafluoroethylene, and place the reactor in a constant temperature drying oven at 200°C for 16 hours , and then ultrasonically cleaned four times with deionized water and ethanol, and finally dried at 65°C to obtain powder C;

[0...

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 discloses a preparation method and application of less-fluorine porous titanium carbide meconene. The method is: Ti 3 AlC 2 Dissolve in concentrated hydrofluoric acid, wash and dry after magnetic stirring to obtain powder A; disperse powder A into sodium hydroxide solution, wash and dry after magnetic stirring to obtain powder B; disperse powder B in deionized water to obtain solution, transfer the solution to a high-pressure reactor and place it in a constant temperature drying box, wash and dry after constant temperature drying to obtain powder C; 4) disperse powder C in dilute hydrofluoric acid, wash and dry after magnetic stirring, A less fluorine porous titanium carbide meconene was obtained. The less-fluorine porous titanium carbide miconene provided by the present invention is applied to the working electrode material of lithium metal batteries, exhibits low nucleation overpotential and excellent cycle stability, and can effectively inhibit the growth of lithium dendrites. It has excellent application prospects in cheap and high-performance lithium metal batteries.

Description

technical field [0001] The invention relates to the field of lithium metal batteries, in particular to a preparation method of less-fluorine porous titanium carbide meconene and its application in lithium metal battery working electrodes. Background technique [0002] With the vigorous development of high-end electronic equipment, the human demand for high-energy-density batteries is also increasing. Due to the ultrahigh theoretical specific capacity (3860mAh / g) and the lowest negative electrochemical potential (-3.040V vs. standard hydrogen electrode), lithium metal anodes are considered to be the most promising candidates for high energy density batteries. one. However, the uncontrollable dendrite growth of lithium metal anodes during cycling leads to low Coulombic efficiency, poor cycling stability, and poor safety. Therefore, the development of lithium metal anode materials that can inhibit the growth of lithium dendrites is the current research hotspot and focus in th...

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 Patents(China)
IPC IPC(8): H01M4/36H01M4/583H01M4/587H01M10/052
CPCY02E60/10
Inventor 洪振生黄万露丁凌怡童庆松
Owner FUJIAN NORMAL UNIV
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