Capacitor composite electrolyte and preparation method thereof, and application of capacitor composite electrolyte

A composite electrolyte and capacitor technology, applied in the direction of hybrid capacitor electrolytes, etc., can solve the problems of poor mechanical properties such as brittleness and tensile properties of composite electrolytes, rupture of composite electrolytes, and reduced yield, etc., and achieve good electrochemical performance and excellent electrical conductivity. , the effect of reducing energy consumption

Active Publication Date: 2019-08-09
GUANGZHOU UNIVERSITY
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the composite electrolyte has poor mechanical properties such as brittleness and tensile properties, and it is easy to cause the composite electrolyte to break during the assembly process, causing a short circuit and reducing the yield.

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
  • Capacitor composite electrolyte and preparation method thereof, and application of capacitor composite electrolyte
  • Capacitor composite electrolyte and preparation method thereof, and application of capacitor composite electrolyte
  • Capacitor composite electrolyte and preparation method thereof, and application of capacitor composite electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] As a method for preparing a capacitor composite electrolyte according to an embodiment of the present invention, the method includes the following steps:

[0045] (1) Add 70mL of distilled water to a 250mL three-necked flask, and then add 12g of butyl acrylate (BA), 8g of methyl methacrylate (MMA) (that is, the weight ratio BA:MMA=6:4), and 0.2g of methacrylic acid as a dispersant Sodium lauryl sulfate and 2mL of dipropylene phthalate as a crosslinking agent to obtain a mixed system A;

[0046] (2) Install an oil bath, a reflux condenser, a stirrer, a constant pressure funnel and a three-necked flask, stir the mixed system A quickly and raise the temperature to 85°C, and add 7.5mL of 2.6 to the mixed system A after the temperature is stabilized at 85°C mg / L ammonium persulfate aqueous solution as the initiator, after the solution turns blue, continue to add 22.5mL of 2.6mg / L initiator solution dropwise, after adding the initiator, the temperature is raised to 90°C for 3...

Embodiment 2

[0052] As a method for preparing a capacitor composite electrolyte according to an embodiment of the present invention, the only difference between this embodiment and Embodiment 1 is: the weight ratio BA:MMA=3:7.

Embodiment 3

[0054] As a method for preparing a capacitor composite electrolyte according to an embodiment of the present invention, the only difference between this embodiment and Embodiment 1 is: the weight ratio BA:MMA=4:6.

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 provides a preparation method of a capacitor composite electrolyte. The method comprises the steps of: taking butyl acrylate, methyl methacrylate and diallyl phthalate as cross-linking agents for copolymerization to obtain a white copolymer, dispersing the white copolymer, an electrolyte matrix and a nano oxide in an N-N dimethylformamide solvent for heating stirring to form gel, coating the gel to form a film, socking the film in water for phase exchange, and drying the film to obtain a composite polymer film; and soaking the composite polymer film into a tetraethylammonium-tetrafluoroborate electrolyte for activation to obtain the capacitor composite electrolyte. The composite electrolyte obtained by the method has good mechanical property and electrochemical property, anddoes not need an additional support body to improve the mechanical property.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a capacitor composite electrolyte and its preparation method and application. Background technique [0002] Compared with other energy storage devices, supercapacitors can provide powerful pulse power and fast charge and discharge speeds because their energy storage mechanism is simple charge transfer at the electrochemical interface between electrodes and electrolyte. Since the discharge current is only limited by internal resistance and heat generation, the energy conversion efficiency is high, with high mass energy density and volume energy density; long cycle life, high capacity retention rate; wide operating temperature range. Since the 1950s, supercapacitors have become a research hotspot in the field of chemical power sources. After decades of development, supercapacitors have played a very important role in electric vehicles, electronic products, new energy p...

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): H01G11/56C08F220/18C08F220/14C08F218/18
CPCC08F220/14C08F220/18C08F220/1804H01G11/56C08F218/18Y02E60/13
Inventor 刘芝婷于欣伟杨伟陈姚杨倩韵
Owner GUANGZHOU UNIVERSITY
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