Great-wettability and high-temperature-resistant supercapacitor separator material

A technology for supercapacitors and diaphragm materials, which is applied in the manufacture of hybrid capacitor separators and hybrid/electric double layer capacitors. It can solve the problems of high-performance diaphragm paper manufacturing technology difficulties, poor electrolyte affinity, and low strength, and achieve excellent performance. The effect of electrolyte wettability, uniform discharge current, and high porosity

Inactive Publication Date: 2016-10-05
ANHUI SUREPHON CAPACITOR CO LTD
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the materials used for supercapacitor separators mainly include cellulose separator paper and traditional battery separators. High-performance separator paper is difficult to manufacture and expensive; The manufacturing technology of spun nanofiber membrane is simple, low cost, the porosity of the diaphragm is as high as 90%, and the affinity to the electrolyte is good, but the disadvantage is that the strength is not high

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] A supercapacitor diaphragm material with good wettability and high temperature resistance, made of the following raw materials in parts by weight (kg): polyvinyl alcohol fiber 35, polypropylene fiber 33, polyacrylonitrile powder 10, acetone 30, N, N2 Methylformamide 72, 70°C water-soluble PVA fiber 8, polyvinylpyrrolidone 7, tetraethyl orthosilicate 8, ethanol with a concentration of 75wt% 9, silicon dioxide 6, zeolite molecular sieve 9, polydimethylsiloxane 1 , carboxymethyl cellulose 2, soybean lecithin 1.5.

[0017] According to claim 1, a supercapacitor diaphragm material with good wettability and high temperature resistance is prepared by the following specific methods:

[0018] (1) Mix acetone and N, N dimethylformamide evenly at room temperature, add polyacrylonitrile powder, and stir at room temperature for 3 hours at a speed of 100 rpm to form a polyacrylonitrile spinning solution. Electrospinning was carried out for 2 hours under the conditions of a distance ...

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
thicknessaaaaaaaaaa
pore sizeaaaaaaaaaa
porosityaaaaaaaaaa
Login to view more

Abstract

The invention discloses great-wettability and high-temperature-resistant supercapacitor separator material which is prepared by the raw material of the following parts by weight: 35-40 parts of polyvinyl alcohol fiber, 33-35 parts of mekralon, 10-13 parts of polyacrylonitrile powder, 30-32 parts of acetone, 72-75 parts of N,N-dimethyl formamide, 8-10 parts of water soluble PVA fiber of 70 DEG C, 7-8 parts of polyvinylpyrrolidone, 8-10 parts of ethyl orthosilicate, 9-10 parts of ethanol of which the concentration is 75wt%, 6-7 parts of silicon dioxide, 9-11 parts of zeolite molecular sieve, 1-2 parts of polydimethylsiloxane, 2-3 parts of carboxymethyl cellulose and 1.5-2 parts of soya lecithin. The silicon dioxide and the zeolite molecular sieve and other components are modified through proper process and added to preparation of nonwoven fabric paste so that the porosity of the product can be increased, the aperture can be reduced and high temperature resistance and membrane rupture temperature of the product can be increased. Besides, the soya lecithin and other components are added before formation so that the wettability of the product can be increased.

Description

technical field [0001] The invention relates to the technical field of capacitor diaphragms, in particular to a supercapacitor diaphragm material with good wettability and high temperature resistance. Background technique [0002] Supercapacitor is a highly competitive energy storage device. Because it can realize fast charging, high current discharge, and has a charging life of more than 100,000 times, it plays an important role in some applications that require short-term high-rate discharge. . The power supply requirements of hybrid electric vehicles and electric vehicles have also aroused worldwide attention to supercapacitors, a new type of energy storage device. In the composition of supercapacitors, electrodes, electrolyte and separator paper play a decisive role in the performance of supercapacitors. At present, the electrodes and electrolytes of supercapacitors are research hotspots, but the research and attention on separators is not high. [0003] The separator...

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): H01G11/52H01G11/84
CPCH01G11/52H01G11/84Y02E60/13
Inventor 杜其信
Owner ANHUI SUREPHON CAPACITOR CO LTD
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