Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of flexible symmetrical pseudocapacitive supercapacitor and preparation method thereof

A supercapacitor, symmetrical technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, hybrid capacitor collectors, etc., can solve the problems of distinguishing polarity, inconvenient use, etc., to increase the load capacity, fast Effect of charge and discharge and guarantee stability

Inactive Publication Date: 2018-05-01
HUAZHONG NORMAL UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a flexible symmetrical pseudocapacitor supercapacitor capable of forward and reverse charge and discharge and its preparation method for the existing pseudocapacitor supercapacitors that need to distinguish polarity and are not convenient to use.

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
  • A kind of flexible symmetrical pseudocapacitive supercapacitor and preparation method thereof
  • A kind of flexible symmetrical pseudocapacitive supercapacitor and preparation method thereof
  • A kind of flexible symmetrical pseudocapacitive supercapacitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of nano-nickel particles / multi-walled carbon nanotubes / conductive carbon cloth electrode, the preparation method includes: using an electrochemical workstation three-electrode system, using carbon fiber cloth as a working electrode, metal platinum sheet as a counter electrode, and calomel as a reference electrode . In a sulfuric acid solution of 1 mole per liter, it was polarized at a constant potential at a positive potential of 2.5 volts for 10 minutes, and the carbon fiber cloth was taken out and dried in an electric blast drying oven to obtain a treated hydrophilic conductive carbon cloth. 2.9 grams of nickel nitrate (Ni(NO 3 ) 2 ·6H 2O) dissolved in 50 ml of water (H 2 O) in the solution, stir with a magnetic stirrer to make it fully dissolve, mix evenly, and make a solution; cut out the treated conductive carbon cloth, place it in the prepared nickel nitrate solution for soaking, take it out, and dry it at 100 degrees Celsius 1 hour; under an inert...

Embodiment 2

[0040] The preparation of nano-nickel particles / multi-walled carbon nanotubes / conductive carbon cloth electrodes, the preparation method includes: in the electrochemical workstation three-electrode system, carbon fiber cloth is used as the working electrode, metal platinum sheet is used as the counter electrode, and calomel is used as the reference electrode . In a sulfuric acid solution of 2 moles per liter, use the constant potential polarization mode, and polarize at a positive potential of 3 volts for 5 minutes, take out the carbon fiber cloth and dry it in an electric blast drying oven to obtain the treated hydrophilic conductive carbon cloth . 1.5 grams of nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O) dissolved in 50 ml of water (H 2 O) in the solution, stir with a magnetic stirrer to make it fully dissolve, mix evenly, and make a solution; cut the conductive carbon cloth after the activation treatment and place it in the nickel nitrate solution that has been prepared for inf...

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 relates to a flexible symmetrical pseudocapacitance supercapacitor and a preparation method thereof. It includes a positive electrode, a negative electrode and an electrolyte between the two. It is characterized in that both the positive and negative electrodes use nano-nickel particles / multi-walled carbon nanotubes with conductive carbon cloth as the current collector and nano-nickel particles / multi-walled carbon nanotubes as active materials. The wall carbon nanotube / conductive carbon cloth electrode is obtained by growing nano-nickel particles on a multi-wall carbon nanotube / conductive carbon cloth substrate, and the nano-nickel particles and the multi-wall carbon nanotube are combined in situ. Nano-nickel particles / multi-walled carbon nanotubes / conductive carbon cloth electrodes have a high overall electron mobility and excellent rate performance; the pseudocapacitive supercapacitor assembled from it has a symmetrical structure and can charge and discharge without distinguishing the positive and negative directions of polarity, and Compared with traditional carbon-based supercapacitors, it can provide larger pseudocapacitive specific capacity; and has excellent mechanical flexibility.

Description

technical field [0001] The invention relates to a flexible symmetrical pseudocapacitance supercapacitor capable of positive and negative charging and discharging and a preparation method thereof, specifically, using porous network structure nano-nickel particles / multi-walled carbon nanotubes cross-linked on conductive carbon cloth as positive and negative electrodes, respectively. The negative electrode is assembled into a flexible solid pseudocapacitor supercapacitor that can be recharged and discharged. It belongs to the fields of electrochemistry, materials science, electronic instruments, energy, etc., and is mainly used in flexible and portable electronic devices. Background technique [0002] Supercapacitor is a new type of energy storage device between ordinary batteries and capacitors, which can provide higher power density than ordinary batteries and greater energy density than ordinary capacitors. Supercapacitors are further divided into electric double-layer supe...

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 Patents(China)
IPC IPC(8): H01G11/30H01G11/36H01G11/24H01G11/28H01G11/68H01G11/86H01G11/84
Inventor 周程刘金平邢文静徐孟旋曲君怡段苑林诏华金烁
Owner HUAZHONG NORMAL UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com