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

Electrode material applied to supercapacitor

A technology of supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of low load and difficult to obtain practical use, achieve uniform pore size, improve comprehensive electrochemical performance, technology simple craftsmanship

Active Publication Date: 2017-08-15
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from a practical point of view, due to its relatively low load, it is difficult to obtain practical

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
  • Electrode material applied to supercapacitor
  • Electrode material applied to supercapacitor
  • Electrode material applied to supercapacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Prepare a carbon nanotube skeleton with a vertical through-hole film structure: disperse carbon nanotubes with a concentration of 4wt% and 0.9wt% polypropylene pyrrolidone in deionized water to make a uniform dispersion, and then add 48wt% SBR water-based binder, after stirring, obtain a viscous carbon nanotube water dispersion slurry, the mass ratio of the SBR and the carbon nanotube is 9:1, and then the slurry is coated on the On stainless steel foil, the coating film thickness was 120 μm. Then fix the stainless steel foil coated with slurry on the glass sheet, then place the glass sheet in a hollow mold, and then push the mold into a cold trap at -196°C at 50cm / h until the slurry is completely solidified Afterwards, it was quickly transferred to a freeze dryer, and freeze-dried at -10°C with a final vacuum controlled at 5Pa to obtain a carbon nanotube framework with a vertical through-hole film structure. The horizontal section of the framework and The SEM of the ve...

Embodiment 2

[0029] Prepare a carbon nanotube skeleton with a vertical through-hole film structure: disperse carbon nanotubes with a concentration of 5wt% and sodium dodecylsulfonate at 1.2wt% in deionized water to make a uniform dispersion, and then disperse the Add 48wt% of the SBR water-based binder to the liquid, stir to obtain a viscous carbon nanotube water dispersion slurry, the mass ratio of the SBR and the carbon nanotube is 12:1, and then the slurry is coated with Coated on stainless steel foil with a film thickness of 250 μm. Then fix the stainless steel foil coated with slurry on the glass sheet, then place the glass sheet in a hollow mold, and then push the mold into a cold trap at -196°C at 35cm / h until the slurry is completely solidified Afterwards, it was quickly transferred to a freeze dryer, and freeze-dried at -5°C with a final vacuum of 1 Pa to obtain a carbon nanotube skeleton with a vertical through-hole film structure. The average diameter of the vertical through ho...

Embodiment 3

[0033] Prepare a carbon nanotube skeleton with a vertical through-hole film structure: disperse carbon nanotubes with a concentration of 3wt% and 0.6wt% sodium cholate in deionized water to make a uniform dispersion, and then add 48wt% SBR water-based binder, after stirring, obtain a viscous carbon nanotube water dispersion slurry, the mass ratio of the SBR and the carbon nanotube is 7:1, and then the slurry is coated on the On stainless steel foil, the coating film thickness was 400 μm. Then fix the stainless steel foil coated with slurry on the glass sheet, then place the glass sheet in a hollow mold, and then push the mold into a cold trap at -196°C at 20cm / h until the slurry is completely solidified Afterwards, it was quickly transferred to a freeze dryer, and freeze-dried at -5°C with a final vacuum of 1 Pa to obtain a carbon nanotube skeleton with a vertical through-hole film structure. The average diameter of the vertical through holes is 17 μm, and the wall thickness ...

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
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an electrode material applied to a supercapacitor. The electrode material comprises a carbon nanotube and a metal oxide. The skeleton of the electrode material applied to the supercapacitor is composed of the carbon nanotube. The metal oxide adheres to the surface of the skeleton. The structure of the skeleton is a thin film with a vertical through-hole which is perpendicular to the plane where the thin film is located. According to the electrode material, the conductivity of the capacitor can be significantly improved; the electronic transmission capacity is significantly improved; and the electrochemical overall performance of the supercapacitor is greatly improved.

Description

technical field [0001] The invention relates to an electrode material for a supercapacitor, in particular to an electrode material composed of a carbon nanotube thin film with vertical through holes and a metal oxide compound. Background technique [0002] Nowadays, people's demand for energy is constantly increasing. Corresponding to batteries that mainly provide high capacity, supercapacitors have been favored as a device that mainly provides high rate performance. The development trend in recent years makes people hope to achieve both high energy and high rate effects at the same time. For supercapacitors, there are two main categories: one is electric double layer capacitors; the other is pseudocapacitive capacitors. The former is a type of material represented by carbon materials, a form of energy storage through the electric double layer; while the latter is based on the electrochemical reaction on the surface of the material to achieve energy storage. This kind of c...

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): H01G11/24H01G11/26H01G11/36H01G11/46H01G11/86
CPCY02E60/13H01G11/24H01G11/26H01G11/36H01G11/46H01G11/86
Inventor 杨全红潘郑泽吕伟郑德群王聪游从辉康飞宇
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA 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