Combined electrode for super capacitor and preparation method thereof

A technology of supercapacitors and composite electrodes, which is applied in the manufacture of hybrid capacitor electrodes, capacitors, and hybrid/electric double-layer capacitors, etc. Improved, high theoretical specific capacitance, high mechanical strength effect

Inactive Publication Date: 2012-09-19
昆山昆鹏利杰高分子材料技术有限公司
View PDF3 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Currently commercialized supercapacitors are mainly electric double layer capacitors with carbon materials as electrode materials, but generally carbon materials have low specific capacity, which is difficult to meet the future high energy density practical needs
Chinese patent CN101661840A discloses a method for preparing carbon nanotube electrodes for supercapacitors, which uses chemical vapor deposition to directly grow carbon nanotubes (CNTs) on foamed nickel substrates, although no bonding ...

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
  • Combined electrode for super capacitor and preparation method thereof
  • Combined electrode for super capacitor and preparation method thereof
  • Combined electrode for super capacitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of graphite felt / carbon nanotube / palladium / manganese dioxide composite electrode:

[0027] Using constant potential electrophoretic deposition technology, the graphite felt substrate was used as the working electrode, the platinum electrode was used as the counter electrode, and the aqueous solution of 1.1 g / L carbon nanotubes was used as the electrolyte, and the carbon nanotube layer was electrophoretically deposited on the surface of the graphite felt substrate with a deposition potential of 10 V. After drying, a graphite felt / carbon nanotube electrode is obtained. Using constant potential electrodeposition technology, using graphite felt / carbon nanotube electrode as working electrode, platinum electrode as counter electrode, saturated calomel electrode as reference electrode, 8.5mM PdCl 2 and 0.49M H 3 BO 3 The mixed aqueous solution was used as the electrolyte, and the palladium nanoparticles were electrochemically deposited on the graphite felt / carbo...

Embodiment 2

[0030] Preparation of graphite felt / carbon nanotube / palladium / manganese dioxide composite electrode:

[0031] Using the constant potential electrophoretic deposition technology, the graphite felt substrate was used as the working electrode, the platinum electrode was used as the counter electrode, and the aqueous solution of 0.8 g / L carbon nanotubes was used as the electrolyte, and the carbon nanotube layer was electrophoretically deposited on the surface of the graphite felt substrate with a deposition potential of 10 V. After drying, a graphite felt / carbon nanotube electrode is obtained. Using constant potential electrodeposition technology, using graphite felt / carbon nanotube electrode as working electrode, platinum electrode as counter electrode, saturated calomel electrode as reference electrode, 8.5mM PdCl 2 and 0.49M H 3 BO 3 The mixed aqueous solution was used as the electrolyte, and the palladium nanoparticles were electrochemically deposited on the graphite felt / c...

Embodiment 3

[0035] Preparation of graphite felt / carbon nanotube / platinum / manganese dioxide composite electrode:

[0036] Using the constant potential electrophoretic deposition technology, the graphite felt substrate was used as the working electrode, the platinum electrode was used as the counter electrode, and the aqueous solution of 1.2 g / L carbon nanotubes was used as the electrolyte, and the carbon nanotube layer was electrophoretically deposited on the surface of the graphite felt substrate with a deposition potential of 10 V. After drying, a graphite felt / carbon nanotube electrode is obtained. Using constant potential electrodeposition technology, graphite felt / carbon nanotube electrode was used as working electrode, platinum electrode was used as counter electrode, saturated calomel electrode was used as reference electrode, and 5 mmol / L H 2 PtCl 6 and a mixed aqueous solution of 1.2 mmol / L HCl as the electrolyte, electrochemically deposited platinum nanoparticles on the graphit...

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
Specific capacitanceaaaaaaaaaa
Specific capacitanceaaaaaaaaaa
Specific capacitanceaaaaaaaaaa
Login to view more

Abstract

The invention relates to a nanometer combined electrode material for a super capacitor and a preparation method thereof. The combined electrode material for the super capacitor is as follows: the surface of a graphite felt or a foam nickel substrate material is provided with a carbon nanometer tube layer; the surface of the carbon nanometer tube layer is provided with a layer of trace discontinuous palladium or platinum or gold nanometer particles; and the carbon nanometer tube layer with a layer of trace discontinuous palladium or platinum or gold nanometer particles on the surface is provided with a manganese dioxide layer.

Description

technical field [0001] The invention relates to a capacitor electrode material and a preparation method thereof, in particular to a nanocomposite electrode material for a supercapacitor and a preparation method thereof. Background technique [0002] Supercapacitors, also known as electrochemical capacitors, offer higher energy density than physical capacitors, higher power density and longer cycle life than batteries. It has the advantages of fast charging speed, large discharge current, high efficiency, small size, long cycle life, wide working temperature range, good reliability, maintenance-free and green environmental protection. As a backup power supply or an independent power supply, it can be widely used in the field of consumer electronics products, and can also be used in new energy power generation systems, distributed energy storage systems, intelligent distributed power grid systems and other fields. In particular, supercapacitors can be used not only as an auxi...

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): H01G9/058H01G11/30H01G11/86
CPCY02E60/13
Inventor 赵丹丹赵永青
Owner 昆山昆鹏利杰高分子材料技术有限公司
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