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

Methods of Improving the Specific Capacitance of Electric Double Layer Capacitors

An electric double layer capacitor and specific capacitance technology, applied in the field of capacitors, can solve the problems of low ionic conductivity, large equivalent internal resistance, low liquid absorption rate, etc. Effect

Active Publication Date: 2019-09-06
王馨瑜
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art that the capacitor diaphragm has a low liquid absorption rate to the electrolyte, so that the equivalent internal resistance of the electric double-layer capacitor is relatively large, the ion conductivity is low, and the specific capacitance of the capacitor is low. Method for Specific Capacitance of Electric Double Layer Capacitors

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
  • Methods of Improving the Specific Capacitance of Electric Double Layer Capacitors
  • Methods of Improving the Specific Capacitance of Electric Double Layer Capacitors
  • Methods of Improving the Specific Capacitance of Electric Double Layer Capacitors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Step 1: Peel, clean and cut the eggshell membrane from the eggshell to a size of 1.2cm×1.2cm;

[0048] Step 2. Configure the egg white-based gel electrolyte. The egg white-based gel electrolyte is composed of egg white, water and sodium chloride. The volume ratio of egg white to water is 8:2, and the concentration of sodium chloride is 1mol / L ;

[0049] Step 3. Place the cut eggshell membrane in the egg white-based gel electrolyte for 10 minutes to obtain the eggshell membrane that absorbs the egg white-based gel electrolyte, wipe the excess electrolyte on the surface of the eggshell membrane to obtain the egg white-based gel electrolyte , The absorption rate of the eggshell membrane to the electrolyte is 27%;

[0050] Step 4: Assemble the egg white-based gel electrolyte and rice husk-based activated carbon electrode (1cm×1cm) in a sandwich structure, using tin foil as the current collector, and using transparent tape as a simple packaging material to avoid evaporation of the...

Embodiment 2

[0055] Step 1: Peel, clean and cut the eggshell membrane from the eggshell to a size of 1.2cm×1.2cm;

[0056] Step 2. Configure the egg white-based gel electrolyte. The egg white-based gel electrolyte is a combination of egg white, water and sodium chloride. The volume ratio of egg white to water is 10:0, and the concentration of sodium chloride is 1mol / L. ;

[0057] Step 3. Place the cut eggshell membrane in the egg white-based gel electrolyte for 10 minutes to obtain the eggshell membrane that absorbs the egg white-based gel electrolyte, wipe the excess electrolyte on the surface of the eggshell membrane to obtain the egg white-based gel electrolyte , The absorption rate of the eggshell membrane to the electrolyte is 19%;

[0058] Step 4: Assemble the egg white-based gel electrolyte and rice husk-based activated carbon electrode (1cm×1cm) in a sandwich structure, using tin foil as the current collector, and using transparent tape as a simple packaging material to avoid evaporation...

Embodiment 3

[0061] Step 1: Peel, clean and cut the eggshell membrane from the eggshell to a size of 1.2cm×1.2cm;

[0062] Step 2. Configure egg white-based gel electrolyte. The egg white-based gel electrolyte is a combination of egg white, water and sodium chloride. The volume ratio of egg white to water is 1:9, and the concentration of sodium chloride is 1mol / L. ;

[0063] Step 3. Place the cut eggshell membrane in the egg white-based gel electrolyte for 10 minutes to obtain the eggshell membrane that absorbs the egg white-based gel electrolyte, wipe the excess electrolyte on the surface of the eggshell membrane to obtain the egg white-based gel electrolyte , The absorption rate of the eggshell membrane to the electrolyte is 11%;

[0064] Step 4: Assemble the electrolyte membrane egg white-based gel electrolyte and rice husk-based activated carbon electrode (1cm×1cm) in a sandwich structure, using tin foil as the current collector, in order to avoid the evaporation of electrolyte water, use tr...

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 relates to a method for improving specific capacitance of an electric double-layer capacitor, belongs to the technical field of a capacitor and solves the problems that since liquid absorption rate of a capacitor diaphragm for electrolyte is low, equivalent internal resistance of the electric double-layer capacitor is large, ionic conductance is low and specific capacitance is low in the prior art. The method comprises the following steps: to begin with, peeling an eggshell membrane from an eggshell, cleaning and cutting the eggshell membrane to a required size; then, preparing an egg white base gel electrolyte solution formed by egg white, water and neutral salt; placing the cut eggshell membrane into the egg white base gel electrolyte solution for more than 10 mins; wiping unnecessary electrolyte solution on the surface of the eggshell membrane to obtain an egg white base gel electrolyte; and assembling the egg white gel electrolyte into an electric double-layer capacitor. The method is simple and environment friendly; and by utilizing affinity between the egg white and the eggshell membrane as well as gel property of the egg white in increasing viscosity of the electrolyte, the eggshell membrane is allowed to absorb larger amount of electrolyte solution, so that internal resistance of the capacitor is reduced, ionic conduction is improved, and specific capacitance of the capacitor is improved.

Description

Technical field [0001] The invention belongs to the technical field of capacitors, and particularly relates to a method for increasing the specific capacitance of an electric double layer capacitor. Background technique [0002] Electrical Double-Layer Capacitor (Electrical Double-Layer Capacitor), also called super capacitor, is a new type of energy storage device. It has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental protection. It has important applications in the fields of smart electronic products, power tools, hybrid vehicles and high-power pulse equipment. [0003] As an important part of the electric double layer capacitor, the electrolyte has a great influence on the electric storage performance of the electric double layer capacitor, which determines the equivalent internal resistance of the capacitor, the working voltage range, the electric storage capacity, the working temperature and the ...

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): H01G11/52H01G11/56
Inventor 王馨瑜
Owner 王馨瑜
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