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

Synthetic method of high-performance one-dimensional nanostructure vanadium oxide lithium ion battery electrode material

A lithium vanadium oxide and nanostructure technology, applied in battery electrodes, vanadium oxide, nanotechnology, etc., to achieve the effect of simple synthesis method, high repeatability and high purity

Inactive Publication Date: 2015-05-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metastable phase VO was synthesized by the hydrothermal high-temperature mixing method. 2 (B), metastable phase VO 2 (A), stable V 3 o 7 ·H 2 O powder has not been reported

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
  • Synthetic method of high-performance one-dimensional nanostructure vanadium oxide lithium ion battery electrode material
  • Synthetic method of high-performance one-dimensional nanostructure vanadium oxide lithium ion battery electrode material
  • Synthetic method of high-performance one-dimensional nanostructure vanadium oxide lithium ion battery electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] First place 0.182g of V 2 o 5 Add it to one cavity of the lining of the high-temperature mixed hydrothermal reactor, and then add 0.378g of oxalic acid to another cavity of the lining;

[0038] Then add 5ml deionized water to the two chambers respectively;

[0039] Then seal the reactor and put it into an oven to heat up. When the temperature rises to 200-260°C, rotate the reactor to mix the reactants in the two inner cavities of the reactor and keep it warm for 2-24 hours;

[0040] Cool to room temperature after reaction finishes;

[0041] Finally, the obtained precipitate was washed several times with deionized water and absolute ethanol, and then dried at 80 °C for 10 h to obtain a metastable phase VO with good dispersibility. 2 (B) Powder.

[0042] Embodiment two:

Embodiment 2

[0044] First place 0.182g of V 2 o 5 Add it to one cavity of the lining of the high-temperature mixed hydrothermal reactor, and then add 0.378g of oxalic acid to another cavity of the lining;

[0045] Then add 5ml deionized water to the two chambers respectively;

[0046] Afterwards, seal the reactor and put it into an oven to heat up. When the temperature rises to 240°C, rotate the reactor to mix the reactants in the two cavities of the reactor and keep it warm for 24-48 hours;

[0047] Cool to room temperature after reaction finishes;

[0048] Finally, the obtained precipitate was washed several times with deionized water and absolute ethanol, and then dried at 80 °C for 10 h to obtain a metastable phase VO with good dispersibility. 2 (A) Powder.

[0049] Embodiment three:

Embodiment 3

[0051] First place 0.182g of V 2 o 5 Add it to one cavity of the lining of the high-temperature mixed hydrothermal reactor, and then add 0.378g of oxalic acid to another cavity of the lining;

[0052] Then add 5ml deionized water to the two chambers respectively;

[0053] Afterwards, seal the reactor and place it in an oven to heat up. When the temperature reaches 240°C, rotate the reactor so that the reactants in the two cavities of the reactor are mixed and kept warm for 1 hour;

[0054] Cool to room temperature after reaction finishes;

[0055] Finally, the obtained precipitate was washed several times with deionized water and absolute ethanol, and dried at 80 °C for 10 h to obtain a stable phase V with better dispersion 3 o 7 ·H 2 O powder.

[0056] like figure 1 , figure 2 and image 3 shown, from figure 1 It is clearly seen in the XRD pattern that VO was synthesized under this experimental condition2 (B), VO 2 (A) and V 3 o 7 ·H 2 O three kinds of vanadi...

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
Login to View More

Abstract

The invention discloses a synthetic method of a high-performance one-dimensional nanostructure vanadium oxide lithium ion battery electrode material. Meta-stable-phase VO2 (B), meta-stable-phase VO2 (A) and stable-phase V3O7.H2O powder is synthesized by the utilization of a high-temperature hydrothermal mixing method, so that the repeatability and the crystallinity of powder synthesis are improved, and the surface appearance of the powder is controlled. The synthetic method disclosed by the invention is the high-temperature hydrothermal method and not only has the advantages owned by the high-temperature hydrothermal method self, but also has the advantages that the repeatability is high, an obtained product is good in crystallinity, easy in appearance control and the like, therefore, the electrochemical performance of the synthetic method can be effectively optimized; the three kinds of vanadium oxide (VO2 (B), VO2 (A) and V3O7.H2O) powder synthesized by the utilization of the high-temperature hydrothermal mixing method are simple in synthetic method, high in purity, good in crystallization, uniform and unified in appearance and have no intermediate phase; the synthetic method is very simple, effective and feasible and plays a great role in improving the application performance of the vanadium oxide electrode material.

Description

technical field [0001] The invention relates to a method for synthesizing high-performance vanadium oxide powder by hydrothermal high-temperature mixing, in particular to a method suitable for synthesizing high-performance metastable phase VO 2 (B), metastable phase VO 2 (A) and stable phase V 3 o 7 ·H 2 The method for vanadium oxide powder, the prepared material can be used to make lithium ion battery electrode materials, and belongs to the field of energy storage materials. Background technique [0002] With the rapid development of economy and society, all kinds of production activities of modern people are closely related to electric energy. Especially in today's industrialization and technological development, human beings and electricity are inseparable. Due to the large-scale use of fossil fuels, fossil fuel resources have gradually decreased, and at the same time caused huge pollution to the environment. The energy structure dominated by traditional fossil ene...

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): H01M4/36H01M4/48H01M10/0525B82Y40/00C01G31/02
CPCB82Y30/00C01G31/02H01M4/362H01M4/483H01M10/0525Y02E60/10
Inventor 朱孔军李丽叶刘鹏程刘劲松王婧裘进浩
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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