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

Multi-valence-state vanadium oxide flexible electrode preparation method

A vanadium oxide and flexible electrode technology, which is applied in the field of multivalent vanadium oxide flexible electrode preparation, can solve problems such as difficult operation and complicated process flow, and achieve electrochemical performance improvement, safe and reliable process, and low reaction temperature Effect

Active Publication Date: 2019-09-06
SICHUAN UNIV
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two methods all have the disadvantages of complex technological process and difficult operation.

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
  • Multi-valence-state vanadium oxide flexible electrode preparation method
  • Multi-valence-state vanadium oxide flexible electrode preparation method
  • Multi-valence-state vanadium oxide flexible electrode preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] One aspect of the present invention provides a method for preparing a multivalent vanadium oxide flexible electrode. In an exemplary embodiment of the method for preparing a multivalent vanadium oxide flexible electrode of the present invention, the preparation method may include:

[0026] Step S01, activating the carbon cloth to obtain activated carbon cloth.

[0027] In this embodiment, the method for activating the carbon cloth may include arranging the carbon in a container (for example, a reactor) filled with hydrogen peroxide for activation treatment. The temperature of the activation treatment may be 120°C to 200°C. Further, the temperature of the activation treatment may be 150°C-200°C. For example, it may be 180°C. The mass concentration of hydrogen peroxide can be 0.5%-24.5%. Further, the mass concentration of hydrogen peroxide may be 0.5%-20.0%. For example, it can be 3%. Appropriate activation temperature and hydrogen peroxide concentration are conduciv...

example 1

[0045] (1) The interception size is 2.5×6cm 2 , a commercial carbon cloth with a thickness of 350 μm, and then ultrasonically cleaned with a water / ethanol / nitric acid mixed solution, washed and dried.

[0046] (2) Put the carbon cloth cleaned in step (1) into the reactor, the concentration of hydrogen peroxide in the reactor is 3wt%, the reaction temperature is set to 200°C, and the reaction time is 12h.

[0047] (3) After the reaction is finished, it is cooled to room temperature, washed and dried to obtain activated carbon cloth, such as figure 2 shown.

[0048] (4) Fix the activated carbon cloth obtained in step (3) on the wall of the beaker, and add ethylene glycol and metavanadate with a concentration of 21 mmol / L into the beaker.

[0049] (5) Put the sample obtained in step (4) into an oil bath at 120° C. and keep it warm for 2 hours under stirring until the reaction is completed.

[0050] (6) After the reaction is finished, the product of step (5) is washed and drie...

example 2

[0053] (1) The interception size is 2.5×6cm 2 , a commercial carbon cloth with a thickness of 350 μm, and then ultrasonically cleaned with a mixed solution such as water / ethanol / nitric acid, washed and dried.

[0054] (2) Put the carbon cloth cleaned in step (1) into the reactor, the concentration of hydrogen peroxide in the reactor is 12.7wt%, the reaction temperature is set to 200°C, and the reaction time is 12h.

[0055] (3) After the reaction is finished, wait for it to cool to room temperature, wash and dry to obtain activated carbon cloth.

[0056] (4) Fix the activated carbon cloth obtained in step (3) on the wall of the beaker, and add ethylene glycol and metavanadate with a concentration of 42mmol / L into the beaker.

[0057] (5) Put the sample obtained in step (4) into an oil bath at 200° C. and keep it under stirring for 5 hours until the reaction is completed.

[0058] (6) After the reaction is finished, the product of step (5) is washed and dried, and heat-preser...

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
Current densityaaaaaaaaaa
Login to View More

Abstract

The invention provides a multi-valence-state vanadium oxide flexible electrode preparation method. The preparation method includes steps: arranging carbon cloth in hydrogen peroxide in mass concentration of 0.5%-24.5%, subjecting the carbon cloth to activating treatment at 120-200 DEG C, cooling, cleaning, and drying to obtain activated carbon cloth; mixing the activated carbon cloth, ethylene glycol and metavanadate, heating, stirring until reaction is finished, cleaning, drying, and controlling a heat preservation atmosphere, a heat preservation temperature and heat preservation time to obtain a multi-valence-state vanadium oxide flexible electrode after heat preservation is finished, wherein the concentration of metavanadate in an activated carbon cloth, ethylene glycol and metavanadatemixture is 20mmol / L-42.8mmol / L, and the heating temperature is 120-200 DEG C. A flexible electrode preparation process is simple, no special pressure device is needed, low reaction temperature and short time are realized, and a potential of large-scale application is achieved.

Description

technical field [0001] The invention relates to the technical field of electrode material preparation, and more specifically, relates to a method for preparing a multivalent state vanadium oxide flexible electrode. Background technique [0002] At present, there are two main methods for preparing flexible electrodes: one is the traditional electrode preparation method, and the active material, binder, and conductive agent are evenly mixed and then loaded into the current collector; the other is to use some technological methods such as water Thermal method, electrodeposition, vapor deposition and other methods directly load the active material to the current collector. The above two methods all have the disadvantages of complex technological process and difficult operation. Contents of the invention [0003] In view of the deficiencies in the prior art, one purpose of the present invention is to solve one or more problems in the above prior art. For example, one of the o...

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): D06M11/50D06M13/148D06M11/47H01G11/46H01G11/86D06M101/40
CPCD06M11/47D06M11/50D06M13/148H01G11/46H01G11/86Y02E60/13
Inventor 黄婉霞吕祥唐露蒋跃进唐际斌
Owner SICHUAN 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