Supercharge Your Innovation With Domain-Expert AI Agents!

Three-dimensional electrode material formed by carbon-coated nanosheets and preparation method

A three-dimensional electrode and nanosheet technology, used in carbon preparation/purification, battery electrodes, nanotechnology, etc., can solve problems such as poor charge and discharge stability, achieve good rate performance, high yield, and improve high current charge and discharge. Effects of Cyclic Stable Performance

Pending Publication Date: 2022-02-11
ANYANG INST OF TECH
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the charge-discharge stability of vanadium-based oxide electrode materials is poor, and its charge-discharge stability needs to be further improved.

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
  • Three-dimensional electrode material formed by carbon-coated nanosheets and preparation method
  • Three-dimensional electrode material formed by carbon-coated nanosheets and preparation method
  • Three-dimensional electrode material formed by carbon-coated nanosheets and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add about 0.36 grams of V to a 100ml glass beaker 2 o 5 Powder, then add about 30ml of deionized water, stir evenly, then add about 5ml of commercially available about 30% hydrogen peroxide solution, stir again, and then ultrasonically treat in a water bath for about 15 minutes, during which a large amount of bubbles, and the solution turns red and transparent at the same time. When the bubbles are basically no longer generated, add about 0.03ml of absolute ethanol to the red transparent solution, stir well and let it stand for about 8 hours. After about 8 hours, the solution turns light yellow. Then pour the light yellow solution into a 50ml polytetrafluoroethylene liner at 160 o After hydrothermal treatment at a temperature of C for about 12 hours, a grass-green colloidal product can be obtained. Dissolve the grass-green colloidal product after the hydrothermal reaction in about 500ml of deionized water for washing, separate the solid and solution by natural sedimen...

Embodiment 2

[0016] Add about 0.72 grams of V to a 200ml glass beaker 2 o 5 Powder, then add about 60ml of deionized water, stir evenly, then add about 10ml of commercially available about 30% hydrogen peroxide solution, stir again, and then ultrasonically treat for about 30 minutes in a water bath, during which a large amount of bubbles, and the solution turns red and transparent at the same time, when it is left to no longer generate bubbles, add about 0.06ml of isopropanol to the red transparent solution, stir evenly and let it stand for about 12 hours, the solution turns light yellow, put The light yellow solution is put into a 100ml polytetrafluoroethylene liner, at 180 o After hydrothermal treatment at a temperature of C for about 12 hours, a grass-green colloidal product can be obtained. Dissolve the grass-green colloidal product after the hydrothermal reaction in deionized water for washing, separate the solid and solution by natural sedimentation or high-speed centrifugation, po...

Embodiment 3

[0018] Add about 0.72 grams of V to a 200ml glass beaker 2 o 5 Powder, then add about 50ml of deionized water, stir evenly, then add about 8ml of commercially available about 30% hydrogen peroxide solution, stir again, and then ultrasonically treat in a water bath for about 20 minutes, during which a large amount of Bubbles, and the solution turns red and transparent at the same time, when it is placed until no more bubbles are generated, add about 0.08ml of a mixed solution of methanol, ethanol and isopropanol to the red transparent solution, wherein the mixed solution contains methanol, ethanol and The volume ratio of isopropanol is 1:1:1. After stirring evenly and standing for about 8 hours, the solution turns light yellow. Put the light yellow solution into a 100ml polytetrafluoroethylene liner, o After hydrothermal treatment at a temperature of C for about 14 hours, a grass-green colloidal product can be obtained. Dissolve the grass-green colloidal product after the hyd...

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 V10O24. 12H2O has good zinc storage performance, and in order to improve the zinc storage performance, the V10O24. 12H2O needs to be prepared into a monatomic layer or polyatomic layer two-dimensional nano material. A preparation method comprises the following steps: firstly, dissolving V2O5 powder in a hydrogen peroxide solution, adding an alcohol substance after the V2O5 powder is completely dissolved, and then carrying out high-temperature hydrothermal treatment to successfully prepare the three-dimensional spongy porous material formed by carbon-coated preferentially exposed crystal face V10O24.12H2O nanosheets, and the thickness of the carbon-coated V10O24.12H2O nanosheets being between 1 and 20 nanometers. As a positive electrode material of a zinc ion battery, the three-dimensional spongy porous material composed of the carbon-coated preferentially exposed crystal face V10O24.12H2O nanosheets shows good rate capability and excellent charge-discharge stability, and has bright application prospects in secondary energy storage batteries.

Description

technical field [0001] The invention relates to the field of energy storage batteries, in particular to a vanadium-based oxide positive electrode material prepared by a hydrothermal synthesis method for use in zinc-ion batteries or lithium-ion batteries. Background technique [0002] Vanadium-based oxides have excellent zinc storage and lithium storage properties, and can be used as positive electrode materials in zinc-ion and lithium-ion batteries, with high specific capacity and rate performance. Therefore, the development of high zinc storage and lithium storage performance Vanadium-based oxide electrode materials are of great significance. However, the charge-discharge stability of vanadium-based oxide electrode materials is poor, and its charge-discharge stability needs to be further improved. By coating a layer of carbon-based material on the surface of vanadium oxide two-dimensional nanomaterials, its charge-discharge cycle stability performance can be effectively im...

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): H01M4/485H01M4/62H01M10/054H01M10/0525C01G31/02C01B32/05B82Y30/00B82Y40/00
CPCH01M4/485H01M4/625H01M10/054H01M10/0525C01G31/02C01B32/05B82Y30/00B82Y40/00C01P2004/20C01P2004/80C01P2002/72C01P2004/03C01P2006/40Y02E60/10
Inventor 武卫明侯绍刚张长松周丽敏王书红王凯路有昌
Owner ANYANG INST OF TECH
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