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

High-energy-storage-performance ceramic/polymer dielectric composite material and preparation method thereof

A technology of composite materials and polymers, applied in the field of high energy storage performance ceramic/polymer dielectric composite materials and their preparation, can solve problems such as limiting energy storage density, reducing material breakdown field strength, increasing agglomeration and generating holes , to achieve the effects of improving breakdown strength, slowing down dielectric constant mismatch, improving energy storage density and energy storage efficiency

Active Publication Date: 2021-04-27
NANCHANG HANGKONG UNIVERSITY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for polymer-based composites, it is difficult to effectively increase the dielectric constant and the breakdown field strength at the same time, because further improvement of the dielectric constant requires the addition of high content fillers, which will inevitably introduce defects, increase agglomeration and generate holes. Significantly reduce the breakdown field strength of the material, thus limiting the further improvement of energy storage density

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
  • High-energy-storage-performance ceramic/polymer dielectric composite material and preparation method thereof
  • High-energy-storage-performance ceramic/polymer dielectric composite material and preparation method thereof
  • High-energy-storage-performance ceramic/polymer dielectric composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Preparation of Pb(Zr 0.52 Ti 0.48 )O 3 @SiO 2 P(VDF-CTFE) / Pb(Zr 0.52 Ti 0.48 )O 3 @SiO 2 Composite polymer film, the steps are as follows:

[0048](1) Dissolve 0.5g of P(VDF-CTFE) in 4g of N,N dimethylformamide and stir for 5 hours to make solution A for later use.

[0049] (2) Prepare 180mL of 0.08mol / l Ti(C 4 h 9 O) 4 Ethanol solution, ultrasonic dispersion for 10 minutes; prepare 156mL of 0.1mol / l ZrOCl 2 ·8H 2 O solution, magnetic stirring for 5 minutes, ultrasonic dispersion for 5 minutes. ZrOCl will be formulated 2 ·8H 2 O solution was slowly added to Ti(C 4 h 9 O) 4 Ethanol solution, mixed, magnetically stirred for 10 minutes, ultrasonically dispersed for 10 minutes, and ammonia water was added to adjust the pH of the solution to pH=9, magnetically stirred for 30 minutes, ultrasonically dispersed for 10 minutes, until no white precipitate was produced. Transfer the precipitate after centrifugation to a reaction kettle, add 200mL of deionized wat...

Embodiment 2

[0055] Preparation of Pb(Zr 0.52 Ti 0.48 )O 3 @SiO 2 P(VDF-CTFE) / Pb(Zr 0.52 Ti 0.48 )O 3 @SiO 2 Composite polymer film, the steps are as follows:

[0056] (1) Dissolve 0.5g of P(VDF-CTFE) in 4g of N,N dimethylformamide and stir for 5 hours to make solution A for later use.

[0057] (2) Prepare 180mL of 0.08mol / l Ti(C 4 h 9 O) 4 Ethanol solution, ultrasonic dispersion for 10 minutes; prepare 156mL of 0.1mol / l ZrOCl 2 ·8H 2 O solution, magnetic stirring for 5 minutes, ultrasonic dispersion for 5 minutes. ZrOCl will be formulated 2 ·8H 2 O solution was slowly added to Ti(C 4 h 9 O) 4 Ethanol solution, mixed, magnetically stirred for 10 minutes, ultrasonically dispersed for 10 minutes, and ammonia water was added to adjust the pH of the solution to pH=9, magnetically stirred for 30 minutes, ultrasonically dispersed for 10 minutes, until no white precipitate was produced. Transfer the precipitate after centrifugation to a reaction kettle, add 200mL of deionized wa...

Embodiment 3

[0063] Preparation of Pb(Zr 0.52 Ti 0.48 )O 3 @SiO 2 P(VDF-CTFE) / Pb(Zr 0.52 Ti 0.48 )O 3 @SiO 2 Composite polymer film, the steps are as follows:

[0064] (1) Dissolve 0.5g of P(VDF-CTFE) in 4g of N,N dimethylformamide and stir for 5 hours to make solution A for later use.

[0065] (2) Prepare 180mL of 0.08mol / l Ti(C 4 h 9 O) 4 Ethanol solution, ultrasonic dispersion for 10 minutes; prepare 156mL of 0.1mol / l ZrOCl 2 ·8H 2 O solution, magnetic stirring for 5 minutes, ultrasonic dispersion for 5 minutes. ZrOCl will be formulated 2 ·8H 2 O solution was slowly added to Ti(C 4 h 9 O) 4 Ethanol solution, mixed, magnetically stirred for 10 minutes, ultrasonically dispersed for 10 minutes, and ammonia water was added to adjust the pH of the solution to pH=9, magnetically stirred for 30 minutes, ultrasonically dispersed for 10 minutes, until no white precipitate was produced. Transfer the precipitate after centrifugation to a reaction kettle, add 200mL of deionized wa...

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
Particle sizeaaaaaaaaaa
Diameteraaaaaaaaaa
Breakdown strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-energy-storage-performance ceramic / polymer dielectric composite material and a preparation method of the ceramic / polymer dielectric composite material. The polymer-based composite material takes P (VDF-CTFE) as a base material and SiO2-coated Pb (Zr0.52Ti0.48)O3 powder with low dielectric constant, low loss and high insulation as a filler. According to the invention, the dielectric constant of the composite material is improved by using the Pb(Zr0.52Ti0.48)O3 ferroelectric ceramic filler with the quasi-isomorphic phase boundary, and the breakdown field intensity is improved by reducing the electric field intensity distortion between the filler and the matrix by using the SiO2 with the low dielectric constant. The breakdown field intensity of the composite material can be improved to 450 MV / m-491 MV / m, and the composite material can achieve 16.8 J / cm<3> energy storage density and 70% energy storage efficiency under the highest 491 MV / m external electric field intensity. Meanwhile, the invention also discloses a preparation method of the composite material. According to the invention, the polymer-based composite material with high energy storage density, high energy storage efficiency and high breakdown field strength can be obtained, and the composite material can be applied to the technical field of high-power pulses due to excellent dielectric energy storage characteristics.

Description

technical field [0001] The invention relates to the field of ceramic / polymer composite materials, in particular to a ceramic / polymer dielectric composite material with high energy storage performance and a preparation method thereof. Background technique [0002] Dielectric energy storage capacitors have ultra-high releasable power density, high operating voltage, fast charge and discharge rate, and long cycle life. They are used in military and civilian fields of high-power pulse technologies such as controlled nuclear fusion, high-power microwave weapons, electric vehicles, and medical electronics. has very important applications. [0003] Limited by the low energy storage density of dielectric materials, the current dielectric energy storage capacitors have problems of large volume and high application cost. For example, the biaxially oriented polypropylene (BOPP) film is currently the best commercialized dielectric energy storage capacitor, which can only release an ene...

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): C08L27/16C08K9/02C08K3/24C08J5/18
CPCC08J5/18C08J2327/16C08K9/02C08K3/24
Inventor 谢兵王铜铜刘智勇卢金山郭坤
Owner NANCHANG HANGKONG UNIVERSITY
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