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

Preparation method of nanometer material modified carbon fluoride electrode material

A technology of nanomaterials and electrode materials, applied in the field of preparation of carbon fluoride electrode materials, can solve problems such as unsatisfactory effects, and achieve the effects of significant effects, solving voltage hysteresis, and improving voltage hysteresis.

Inactive Publication Date: 2019-02-26
GUIZHOU MEILING POWER SUPPLY CO LTD
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the good stability and conductivity of conductive polymers, scholars at home and abroad have used conductive polypyrrole, polyaniline and polythiophene to modify carbon fluoride materials, but the results are not satisfactory.

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 nanometer material modified carbon fluoride electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A preparation method of a carbon fluoride electrode material modified by a nanometer material, the method is a dispersion-calcination method, comprising the following steps:

[0038] Step 1: Add the medium and carbon fluoride into the high-speed centrifugal dispersion tank according to the ratio of mass ratio = 2:1, and let the material disperse in the high-speed centrifugal dispersion tank at a speed of 2500r / min for 20min; the medium is ethanol and acetone;

[0039] Step 2: Add nanomaterials to the high-speed centrifugal dispersion tank, and allow the material to disperse for 1.5 hours at a speed of 3000r / min in the high-speed centrifugal dispersion tank to obtain a slurry; the nanomaterials are nano-silver; the nanomaterials and fluorinated The mass ratio of carbon material=0.5:100; the diameter of the nanomaterial is 50nm;

[0040] Step 3: Dry the slurry obtained in Step 2 at room temperature, and then vacuum-dry it for 10 hours in a vacuum environment at 35°C to ob...

Embodiment 2

[0050] A preparation method of a carbon fluoride electrode material modified by a nanometer material, the method is a dispersion-calcination method, comprising the following steps:

[0051] Step 1: Add the medium and carbon fluoride into the high-speed centrifugal dispersion tank according to the ratio of mass ratio = 3:1, and let the material disperse in the high-speed centrifugal dispersion tank at a speed of 3000r / min for 30min; the medium is ethanol and acetone;

[0052] Step 2: Adding nanomaterials to the high-speed centrifugal dispersion tank, allowing the material to disperse in the high-speed centrifugal dispersion tank at a speed of 3500r / min for 2 hours to obtain a slurry; the nanomaterials are nano-silver; the nanomaterials and carbon fluoride The mass ratio of materials=5:100; the diameter of the nanomaterial is 100nm;

[0053] Step 3: Dry the slurry obtained in Step 2 at room temperature, and then vacuum-dry it in a vacuum environment of 30-40°C for 12 hours to ob...

Embodiment 3

[0059] A preparation method of a carbon fluoride electrode material modified by a nanometer material, the method is a dispersion-calcination method, comprising the following steps:

[0060] Step 1: Add the medium and carbon fluoride into the high-speed centrifugal dispersion tank according to the ratio of mass ratio = 2:1, and let the material disperse in the high-speed centrifugal dispersion tank at a speed of 2000r / min for 10 minutes; the medium is ethanol and acetone;

[0061] Step 2: Adding nanomaterials to the high-speed centrifugal dispersion tank, allowing the material to disperse for 1 hour at a speed of 3000r / min in the high-speed centrifugal dispersion tank to obtain a slurry; the nanomaterials are nano-silver; the nanomaterials and carbon fluoride The mass ratio of materials=0.5:100; the diameter of the nanomaterial is 10nm;

[0062] Step 3: Dry the slurry obtained in Step 2 at room temperature, and then vacuum-dry it in a vacuum environment at 30°C for 8 hours to o...

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 invention discloses a preparation method of a nanometer material modified carbon fluoride electrode material. The method comprises the following steps: mixing a medium and carbon fluoride, addinga nanometer material, performing reaction, drying, vacuum drying and grinding, performing calcination in argon atmosphere, cooling down the medium and carbon fluoride to room temperature, grinding, and sieving the medium and carbon fluoride through a 100 to 200-mesh sieve, so as to obtained the nanometer material modified carbon fluoride electrode material; the mass ratio of the nanometer materialto the carbon fluoride is equal to (0.5-5): 100. The method has the advantages that the carbon fluoride material is modified through the nanometer material, the nanometer material is uniformly coatedon the surface of the carbon fluoride material, the conductivity of the carbon fluoride material is improved, the problems of voltage hysteresis and poor low-temperature performance of the carbon fluoride material are effectively improved, and the rate capability of a lithium carbon fluoride battery is improved.

Description

technical field [0001] The invention belongs to the technical field of lithium primary battery production and processing, and in particular relates to a preparation method of a carbon fluoride electrode material modified by a nanometer material. Background technique [0002] A primary lithium battery is a high-energy chemical primary battery, commonly known as a lithium battery. Metal lithium is used as the negative electrode, solid salts or salts dissolved in organic solvents are used as the electrolyte, and metal oxides or other solid and liquid oxidants are used as the positive active material. General-purpose round lithium manganese dioxide (Li / MnO 2 ) battery and lithium fluoride carbon [Li / (CFx)n] battery are represented by the letters CR and BR respectively, and the subsequent numbers represent the model of the battery. Lithium primary battery is a general term for this type of chemical power supply series using metallic lithium as the negative electrode material. ...

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): H01M4/08H01M4/583B82Y30/00
CPCB82Y30/00H01M4/08H01M4/5835
Inventor 张红梅王振陈铤王建勇陈晓涛王庆杰王华国
Owner GUIZHOU MEILING POWER SUPPLY 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