Preparation and testing method for supercapacitor based on strong-correlation oxide combined electrode

A technology for supercapacitors and composite electrodes, which is applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, and electrochemical variables of materials. It can solve the problems of limited improvement in electrode conductivity and achieve excellent cycle stability and high specific surface area. , the effect of reducing resistance

Inactive Publication Date: 2015-11-11
JILIN UNIV
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the improvement of the electrical conductivity of the overall electrode assembled by these low-dimensional nanostructures is still very limited, which

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 and testing method for supercapacitor based on strong-correlation oxide combined electrode
  • Preparation and testing method for supercapacitor based on strong-correlation oxide combined electrode
  • Preparation and testing method for supercapacitor based on strong-correlation oxide combined electrode

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] The specific implementation of the present invention will be further elaborated below with reference to the drawings and specific embodiments of the specification:

[0035] A method for preparing a supercapacitor based on a strongly correlated oxide composite electrode, the specific process is as follows:

[0036] a. Wash the stainless steel metal substrate in acid solution, deionized water and ethanol in sequence, and vacuum dry

[0037] b. Take an appropriate amount of 0.5-10% polystyrene colloidal solution and drop it on the surface of stainless steel, and evaporate the colloidal solution at 35-90℃ to make a polystyrene (PS) film, such as Figure 1a As shown, as an electrochemical deposition template;

[0038] c. Prepared three-dimensional nanoporous V 2 O 3 Conductive framework; adopts a three-electrode system, the anode is a PS film with stainless steel as the base, the counter electrode is a platinum electrode, and Ag / AgCl is used as a reference electrode. The electrolyte ...

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 discloses a preparation and testing method for a supercapacitor based on a strong-correlation oxide combined electrode. The strong-correlation oxide combined electrode takes a polystyrene film as a template for the electrochemical deposition of a vanadium oxide conductive skeleton. After the polystyrene film is removed, vanadium oxide is taken as a template for the electrochemical deposition of a transition metal oxide, thereby obtaining a composite electrode. Electrodes meeting the requirements are symmetrically disposed at two sides of a diaphragm, thereby obtaining the supercapacitor. Finally, the assembled capacitor directly enters into Na2SO4 solution for electrochemical testing. The method is simple, and is easy to operate. The prepared supercapacitor is excellent in circulation stability, in large in power density, and is high in energy density.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, and in particular relates to a method for preparing and testing supercapacitors based on strongly correlated oxide composite electrodes. Background technique [0002] As a new type of green energy storage device, supercapacitors have very broad application prospects in hybrid electric vehicles, consumer electronics, aerospace and other fields. So far, various supercapacitors have been developed. In the process of research, researchers found that it is difficult to completely distinguish electric double layer capacitors from Faraday pseudocapacitors, and these two energy storage mechanisms often exist in the same capacitor. Therefore, the types of capacitors are usually classified according to the main energy storage mechanism among them. According to different energy storage principles, supercapacitors can be divided into electric double layer supercapacitors and Faraday pseudocapacitor...

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): H01G11/86H01G11/24H01G11/26H01G11/46H01G11/84G01N27/48
CPCY02E60/13
Inventor 郎兴友刘博天文子朱永福赵明李建忱蒋靑
Owner JILIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap