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Energy storage ceramic material for pulse capacitor and preparation method thereof

A technology of pulse capacitors and ceramic materials, which is applied in the field of ceramic materials, can solve the problems that the performance cannot meet the requirements of high-performance energy storage applications, and achieve the effects of good energy storage temperature stability, increased process complexity, and high energy efficiency

Pending Publication Date: 2022-04-08
MOBILE ANTENNA TECH SHENZHEN +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of the current energy storage ceramic materials cannot meet the requirements of high-performance energy storage applications in pulse capacitors.

Method used

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  • Energy storage ceramic material for pulse capacitor and preparation method thereof
  • Energy storage ceramic material for pulse capacitor and preparation method thereof
  • Energy storage ceramic material for pulse capacitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The embodiment of the present application provides an energy storage ceramic material for a pulse capacitor, and the energy storage ceramic material for a pulse capacitor is prepared by the following steps:

[0034] S1, the BaTiO 3 , SrCO 3 、 Bi 2 o 3 、TiO 2 and La 2 o 3 According to 69.78wt%, 13.65wt%, 5.98wt%, 10.24wt%, 0.35wt% weight percentages are carried out batching respectively, obtain compound;

[0035] S2. Using yttrium-stabilized zirconia balls as the ball milling medium and deionized water as the solvent, grind the obtained mixture for 6 hours according to the weight ratio of mixture: ball milling medium: solvent = 1:5:2. The slurry obtained after ball milling is Dry in a drying oven at 80°C for 24 hours, dry and pass through an 80-mesh sieve to obtain a dry powder;

[0036] S3. Place the dry powder in a crucible, pre-fire and keep it warm at 900° C. for 4 hours to obtain a pre-fire powder;

[0037] S4. Weigh 100g of calcined powder, and mix magnesia...

Embodiment 2

[0040] The embodiment of the present application provides an energy storage ceramic material for a pulse capacitor, and the energy storage ceramic material for a pulse capacitor is prepared by the following steps:

[0041]S1, the BaTiO 3 , SrCO 3 、 Bi 2 o 3 、TiO 2 and CeO 2 According to 69.78wt%, 13.65wt%, 5.98wt%, 10.24wt%, 0.37wt% by weight to carry out batching respectively, obtain compound;

[0042] S2. Using yttrium-stabilized zirconia balls as the ball milling medium and deionized water as the solvent, grind the obtained mixture for 6 hours according to the weight ratio of mixture: ball milling medium: solvent = 1:5:2. The slurry obtained after ball milling is Dry in a drying oven at 80°C for 24 hours, dry and pass through an 80-mesh sieve to obtain a dry powder;

[0043] S3. Place the dry powder in a crucible, pre-fire and keep it warm at 900° C. for 4 hours to obtain a pre-fire powder;

[0044] S4. Weigh 100g of calcined powder, mix with 0.80g of magnesium oxide...

Embodiment 3

[0047] The embodiment of the present application provides an energy storage ceramic material for a pulse capacitor, and the energy storage ceramic material for a pulse capacitor is prepared by the following steps:

[0048] S1, the BaTiO 3 , SrCO 3 、 Bi 2 o 3 、TiO 2 and Nd 2 o 3 According to the weight percentage of 69.78wt%, 13.65wt%, 5.98wt%, 10.24wt%, 0.36wt%, respectively, batching is carried out to obtain the mixture;

[0049] S2. Using yttrium-stabilized zirconia balls as the ball milling medium and deionized water as the solvent, grind the obtained mixture for 6 hours according to the weight ratio of mixture: ball milling medium: solvent = 1:5:2. The slurry obtained after ball milling is Dry in a drying oven at 80°C for 24 hours, dry and pass through an 80-mesh sieve to obtain a dry powder;

[0050] S3. Place the dry powder in a crucible, pre-fire and keep it warm at 900° C. for 4 hours to obtain a pre-fire powder;

[0051] S4. Weigh 100g of calcined powder, and ...

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Abstract

The invention relates to the technical field of ceramic materials, in particular to an energy storage ceramic material for a pulse capacitor and a preparation method thereof.The energy storage ceramic material comprises a base material and a modifier, rare earth elements are doped into a 0.7 BaTiO3-0. 3Sr0. 7Bi0. 2TiO3 energy storage ceramic system, proper element modification is matched, and the raw material synthesis ratio is adjusted, so that the energy storage ceramic material for the pulse capacitor is obtained. Compared with the prior art, high energy density and high energy efficiency are achieved, meanwhile, the material has good energy storage temperature stability in a wide temperature range, the change rate of the energy density is smaller than 5.0%, the change rate of the energy efficiency is smaller than 3.9% in the whole temperature range, and application requirements can be better met; the preparation method provided by the invention adopts a one-step synthesis method, the process is simple, in addition, the adopted modifiers are all oxides or carbonates, the cost is low, the modifiers are added during secondary ball milling, the process complexity is not increased, and the preparation method is easy to control, green, environment-friendly, pollution-free and capable of meeting mass production and manufacturing.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to an energy storage ceramic material for pulse capacitors and a preparation method thereof. Background technique [0002] With the rapid development of electronic information technology and the continuous consumption of non-renewable energy, the energy crisis and environmental pollution problems are becoming more and more severe, and energy storage materials are receiving great attention. Energy storage materials are the core of high-efficiency energy storage devices. In order to meet the needs of emerging applications, new environmentally friendly energy storage materials with excellent integration performance, high energy density, and high power density are urgently needed. Among currently available electrical energy storage devices, dielectric capacitors have the advantages of fast charge and discharge rates and high power density, but have poor energy densities, typic...

Claims

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Application Information

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IPC IPC(8): C04B35/468C04B35/49C04B35/622
CPCY02E60/13
Inventor 司峰王秀红
Owner MOBILE ANTENNA TECH SHENZHEN
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