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A kind of tin-doped lead lanthanum zirconate titanate thick film ceramics and its preparation and application

A technology of lead lanthanum zirconate titanate and thick film, which is applied in the field of tin-doped lead lanthanum zirconate titanate thick film ceramics and its preparation and application, can solve the problems of low energy storage efficiency and low energy storage density, and achieve small energy Loss, wide application prospects, good temperature stability effect

Active Publication Date: 2021-08-13
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above technical problems, the present invention provides a tin-doped lead lanthanum zirconate titanate thick-film ceramics and its preparation and application. Tin-doped lead lanthanum zirconate titanate is synthesized by solid-state method, and a casting slurry is prepared by adding specific binders, plasticizers and dispersants, and then a thick film green body is made by casting method, and the obtained tin-doped The lead lanthanum zirconate titanate thick film ceramics have a dielectric constant of 350-1050, a thickness of 40-60 μm, can withstand an electric field strength of 400kv / cm, and have better temperature stability. Lead lanthanum tin zirconate titanate ceramics have technical defects of low energy storage density and low energy storage efficiency

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  • A kind of tin-doped lead lanthanum zirconate titanate thick film ceramics and its preparation and application
  • A kind of tin-doped lead lanthanum zirconate titanate thick film ceramics and its preparation and application
  • A kind of tin-doped lead lanthanum zirconate titanate thick film ceramics and its preparation and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The chemical formula of tin-doped lead lanthanum zirconate titanate thick film ceramics is:

[0032] Pb 0.94 La 0.06 (Zr 0.90 sn 0.05 Ti 0.05 ) 0.985 o 3

[0033] Raw material composition: PbO, La 2 o 3 , ZrO 2 、TiO 2 , SnO 2 , absolute ethanol, methyl ethyl ketone, octylphenol polyoxyethylene ether, polyvinyl butyral, dibutyl phthalate; all reagents were purchased from Shanghai Aladdin Biochemical Technology Co., Ltd., and the purity is analytical grade.

[0034] Step 1. Weigh 32.743g PbO, 1.4663g La with an electronic balance 2 o 3 , 16.8032g ZrO 2 , 0.6050gTiO 2 and 1.1308g SnO 2 , put the weighed medicine into the ball mill jar, wherein the zirconium ball in the jar: raw material: the mass ratio of dehydrated alcohol is 6.5:1:0.6, wherein in the ball mill jar is 5mm and 3mm with a mass ratio of 1:1 For zirconium balls, the first ball milling time is 24 hours, and then dried at 60°C for 7 hours, and then the raw materials are passed through an 80-mes...

Embodiment 2

[0042] The chemical formula of tin-doped lead lanthanum zirconate titanate thick film ceramics is:

[0043] Pb 0.94 La 0.06 (Zr 0.85 sn 0.10 Ti 0.05 ) 0.985 o 3

[0044] Raw material composition: PbO, La 2 o 3 , ZrO 2 、TiO 2 , SnO 2 , absolute ethanol, methyl ethyl ketone, octylphenol polyoxyethylene ether, polyvinyl butyral, dibutyl phthalate; all reagents were purchased from Shanghai Aladdin Biochemical Technology Co., Ltd., and the purity is analytical grade.

[0045] Step 1. Weigh 34.611g PbO, 1.4663g La with an electronic balance 2 o 3 , 15.8697g ZrO 2 , 0.6050gTiO 2 and 2.2619g SnO 2 , put the weighed medicine into the ball mill jar, wherein the zirconium ball in the jar: raw material: the mass ratio of dehydrated alcohol is 6.5:1:0.6, wherein in the ball mill jar is 5mm and 3mm with a mass ratio of 1:1 For zirconium balls, the ball milling time is 24 hours, and then dried at 60°C for 7 hours, and then the raw materials are passed through a 80-mesh sieve...

Embodiment 3

[0053] The chemical formula of tin-doped lead lanthanum zirconate titanate thick film ceramics is:

[0054] Pb 0.94 La 0.06 (Zr 0.80 sn 0.15 Ti 0.05 ) 0.985 o 3

[0055] Raw material composition: Raw material composition: PbO, La 2 o 3 , ZrO 2 、TiO 2 , SnO 2 , absolute ethanol, methyl ethyl ketone, octylphenol polyoxyethylene ether, polyvinyl butyral, dibutyl phthalate; all reagents were purchased from Shanghai Aladdin Biochemical Technology Co., Ltd., and the purity is analytical grade.

[0056] Step 1. Weigh 32.743g PbO, 1.4663g La with an electronic balance 2 o 3 , 14.936g ZrO 2 , 0.6050gTiO 2 and 3.3928 g SnO 2 , put the weighed medicine into the ball mill jar, wherein the zirconium ball in the jar: raw material: the mass ratio of dehydrated alcohol is 6.5:1:0.6, wherein in the ball mill jar is 5mm and 3mm with a mass ratio of 1:1 For zirconium balls, the ball milling time is 24 hours, and then dried at 60°C for 7 hours, and then the raw materials are pass...

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Abstract

The invention provides a tin-doped lead lanthanum zirconate titanate thick film ceramic and its preparation and application, belonging to the technical field of energy storage ceramic materials. The tin-doped lead lanthanum zirconate titanate thick-film ceramic has a chemical composition conforming to the general chemical formula Pb 0.94 La 0.06 (Zr 0.95～x Sn x Ti 0.05 ) 0.985 O 3 , where 0.05≦x≦0.15. The preparation method includes the following steps: (1) weighing each raw material in proportion, mixing, ball milling, drying, sieving and calcining to obtain a sintered product; (2) subjecting the sintered product to high-energy ball milling, drying and sieving to obtain fine particles Powder; (3) Mixing the fine powder with dispersant and solvent, tumbling, adding binder and tumbling, then adding dispersant, binder, solvent and plasticizer, and tumbling to obtain casting slurry ; (4) Casting the casting slurry to obtain a thick film green body, sintering, that is, obtained. The tin-doped lead lanthanum titanate ceramic thick film can withstand an electric field strength of 400 kv / cm, significantly improves the energy storage density and energy storage efficiency of the ceramic thick film, and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of energy storage ceramic materials, in particular to a tin-doped lead lanthanum zirconate titanate thick-film ceramic and its preparation and application. Background technique [0002] In recent years, dielectric capacitors have been increasingly used in radars, lasers, and pacemakers due to their high power density, fast charge / discharge (<1 μs), low cost, and high thermal stability. However, compared with fuel cells, lithium-ion batteries, and supercapacitors, the energy storage density of dielectric capacitors is relatively low, and power electronics and pulse power systems using dielectric capacitors usually have a large volume and weight to meet their requirements. energy storage required. In order to reduce the volume and quality of such equipment and systems, and solve the limitation of the working environment temperature of some capacitors, so as to achieve the purpose of using capacitors in var...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/491C04B35/622C04B35/626
CPCC04B35/491C04B35/62218C04B35/62605C04B2235/3227C04B2235/3293C04B2235/6025C04B2235/6562C04B2235/6567C04B2235/661C04B2235/80
Inventor 鲁圣国钟米昌简晓东邹艺轩姚英邦陶涛梁波
Owner GUANGDONG UNIV OF TECH
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