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Polymer-ceramic composite dielectric energy storage material and preparation method thereof

A technology of ceramic composite and energy storage materials, which is applied in the manufacture of cables/conductors, equipment and circuits for the manufacture of conductive/semiconductive layers, etc. Low and other problems, to achieve the effects of easy operation, high charge and discharge efficiency, and high yield

Inactive Publication Date: 2020-01-03
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the remarkable ferroelectric characteristics of this type of material, the corresponding composite material system has the problem of low charge and discharge efficiency that is difficult to overcome.
Low charge and discharge efficiency will not only reduce the efficiency of energy use, but more seriously, the energy that cannot be effectively released as electric energy will be converted into heat energy, and the accumulated heat energy will cause the temperature of the energy storage device to rise. Once the temperature exceeds the operating temperature, it will affect the polymerization. The practical application of matter-based composite dielectric energy storage materials has a fatal impact

Method used

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  • Polymer-ceramic composite dielectric energy storage material and preparation method thereof
  • Polymer-ceramic composite dielectric energy storage material and preparation method thereof
  • Polymer-ceramic composite dielectric energy storage material and preparation method thereof

Examples

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Embodiment 1

[0025] A polymer-ceramic composite dielectric energy storage material, comprising the following components:

[0026] With polymethyl methacrylate (PMMA) as the matrix, its mass fraction in the composite material is 99%;

[0027] Barium strontium titanate (BST) nanoparticles are used as filler, and its mass fraction in the composite material is 1%.

Embodiment 2

[0029] A polymer-ceramic composite dielectric energy storage material, comprising the following components:

[0030] Taking polymethyl methacrylate (PMMA) as the matrix, its mass fraction in the composite material is 69%;

[0031] Barium strontium titanate (BST) nanoparticles are used as filler, and its mass fraction in the composite material is 31%.

Embodiment 3

[0033] A polymer-ceramic composite dielectric energy storage material, comprising the following components:

[0034] Taking polymethyl methacrylate (PMMA) as the matrix, its mass fraction in the composite material is 49%;

[0035] Barium strontium titanate (BST) nanoparticles are used as filler, and its mass fraction in the composite material is 51%.

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Abstract

A polymer-ceramic composite dielectric energy storage material comprises polymethyl methacrylate (PMMA) as a matrix and barium strontium titanate (BST) nanoparticles as a filler. A preparation methodof the material comprises the following steps: 1) weighing materials; 2) preparing a PMMA solution; 3) preparing a PMMA-BST mixed solution; 4) preparing a PMMA-BST composite material film; 5) performing heat treatment; and 6) preparing an electrode. A film sample has a uniform and compact microstructure, good transparency and good flexibility, has a far higher energy storage density than biaxiallyoriented polypropylene, has a far higher charging and discharging efficiency than of a composite dielectric material system taking a ferroelectric polymer as a matrix, and meets the practical application requirements of high energy storage density and high charging and discharging efficiency.

Description

technical field [0001] The invention belongs to the field of polymer-ceramic composite dielectric energy storage materials, in particular to a polymer-ceramic composite dielectric energy storage material and a preparation method thereof, which have high energy storage density and high charge and discharge efficiency. Background technique [0002] With the continuous growth of demand for efficient and convenient power systems in today's society, high-power and high-energy-density electric energy storage technologies have received high attention and extensive research. Compared with electrochemical energy storage technologies (such as batteries, supercapacitors, etc.), dielectric energy storage is considered to be suitable for modern power equipment and national defense due to its high power density and ability to meet the application requirements of high voltage and fast charging and discharging. An advanced electric energy storage technology in weapons has broad application ...

Claims

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Application Information

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IPC IPC(8): C08L33/12C08K3/24C08J5/18H01B13/00
CPCC08J5/18C08J2333/12C08K3/24H01B13/0026
Inventor 路旭邹小宛邓维
Owner XIAN UNIV OF TECH
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