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

Cathode material of vanadium heptoxide zinc ion battery and preparation method thereof

A technology of vanadium heptaoxide, zinc ion battery, applied in vanadium oxide, battery electrodes, secondary batteries, etc., can solve the problems of vanadium heptaoxide with a single shape, unsuitable for zinc ion batteries, and high energy consumption. Achieve uniform morphology, excellent electrochemical performance, and fast heating rate.

Active Publication Date: 2019-04-19
GUANGDONG UNIV OF TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a positive electrode material for a zinc ion battery of vanadium heptoxide and a preparation method thereof, which solves the problem that the shape of the nanostructured vanadium heptoxide in the prior art is relatively single, and the reaction time is long, and the energy consumed There are many technical problems that are not suitable for use in zinc-ion batteries

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
  • Cathode material of vanadium heptoxide zinc ion battery and preparation method thereof
  • Cathode material of vanadium heptoxide zinc ion battery and preparation method thereof
  • Cathode material of vanadium heptoxide zinc ion battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Accurately weigh 234 mg (2 mmol) of ammonium metavanadate and 252 mg (2 mmol) of oxalic acid dihydrate, add them to 30 mL of deionized water, stir magnetically until the solution is clear, then add the resulting solution into a microwave reactor, and react at 180 ° C for 2 Hours, naturally cooled to room temperature, the obtained precipitate was washed 3 times with deionized water and absolute ethanol successively, and finally the washed precipitate was freeze-dried for 48 hours to obtain the nano flower-like structure V 3 o 7 Cathode material.

[0026] figure 1 It is the X-ray diffractogram of the product obtained in this example. After analysis, it can be known that the sample is vanadium heptoxide. figure 2 It is the scanning electron micrograph of the product obtained in this embodiment, from which it can be seen that the sample obtained in this embodiment is a nano flower-like structure (5-10um), specifically, the structure is assembled by nanoribbons (nanoribbo...

Embodiment 2

[0028] Accurately weigh 117mg (1mmol) ammonium metavanadate, 91mg (0.5mmol) vanadium pentoxide, 162mg (1mmol) oxalic acid dihydrate, 118mg (1mmol) succinic acid, add to 30mL deionized water, stir magnetically until the solution is clear , and then add the obtained solution into a microwave reactor, react at 120°C for 3 hours, cool to room temperature naturally, wash the obtained precipitate three times with deionized water and absolute ethanol successively, and finally wash the precipitate After 48 hours of freeze-drying, the nanoflower-like structure V was obtained 3 o 7 Cathode material.

Embodiment 3

[0030] Accurately weigh 1053 mg (9 mmol) of ammonium metavanadate and 1134 mg (9 mmol) of oxalic acid dihydrate, add them to 30 mL of deionized water, stir magnetically until the solution is clear, then add the resulting solution into a microwave reactor, and react at 200 ° C for 0.5 Hours, naturally cooled to room temperature, the obtained precipitate was washed 3 times with deionized water and absolute ethanol successively, and finally the washed precipitate was freeze-dried for 48 hours to obtain the nano flower-like structure V 3 o 7 Cathode material.

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 belongs to the technical field of battery materials, and in particular relates to a cathode material of a vanadium heptoxide zinc ion battery and a preparation method thereof. The invention provides a cathode material of a vanadium heptoxide zinc ion battery, and the cathode material is characterized in that the cathode material is assembled from a nanobelt and has a nanoflower-likestructure. The invention also provides a preparation method of the cathode material of the vanadium heptoxide zinc ion battery, comprising the following steps: dissolving a vanadium source and acid indeionized water to carry out a microwave hydrothermal reaction, and freeze-drying to obtain the cathode material of the vanadium heptoxide zinc ion battery. The invention provides a cathode materialof a vanadium heptoxide zinc ion battery, and the technical problem that nano-structured vanadium heptoxide in the prior art has simple morphology, reaction time is long, more energy is consumed, andthe nano-structured vanadium heptoxide is not suitable for zinc ion batteries.

Description

technical field [0001] The invention belongs to the technical field of battery materials, in particular to a positive electrode material of vanadium heptoxide zinc ion battery and a preparation method thereof. Background technique [0002] With the continuous development of social economy, energy consumption is gradually increasing, and oil and coal resources are becoming increasingly tense, followed by the emission of a large amount of greenhouse gases and harmful gases, causing environmental problems such as climate warming and acid rain. At the same time, these primary energy sources are non-renewable, which is contrary to my country's sustainable development strategy. Therefore, the development of new energy is imperative. As the main energy storage device, the secondary battery can realize high-efficiency energy conversion, and has attracted more and more attention, and has become an important aspect of the development of new green energy. Although lithium-ion batteri...

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): C01G31/02B82Y30/00B82Y40/00H01M4/48H01M10/054
CPCB82Y30/00B82Y40/00C01G31/02C01P2002/72H01M4/483H01M10/054Y02E60/10
Inventor 芮先宏李奇飞黄少铭
Owner GUANGDONG UNIV OF TECH
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