Tin-doped lead lanthanum zirconate titanate thick film ceramic and its preparation and application

A lead lanthanum zirconate titanate and thick film technology is applied to tin-doped lead lanthanum titanate thick film ceramics and their preparation and application fields, which can solve the problems of low energy storage efficiency and low energy storage density, and achieve low energy storage. Loss, wide application prospects, effect of reducing volume
CN108929112AActive Publication Date: 2018-12-04GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2018-12-04

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Abstract

The invention provides a tin-doped lead lanthanum zirconate titanate thick film ceramic and its preparation and application thereof, and belongs 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 chemical formula Pb0.94La0.06(Zr0.95-xSnxTi0.05)0.985O3, wherein 0.05<=x<=0.15. Thepreparation method comprises the following steps: (1) weighing raw materials in proportion, mixing, ball milling, drying, sieving, calcining to obtain a sintered product; (2) subjecting the sinteredproduct to high-energy ball milling, drying and sieving to obtain fine powder; (3) mixing the fine powder in a dispersing agent and a solvent and barrel finishing, adding a dispersing agent, a binder,a solvent and a plasticizer, and barrel finishing to obtain a casting slurry; (4) casting the casting slurry to obtain a thick film green body, sintering, and obtaining the finished product. The tin-doped lead lanthanum zirconate titanate thick film ceramic can withstand the electric field strength of 400 kV / cm, and obviously increases the energy storage density and energy storage efficiency of the thick film of ceramics, and has wide application prospects.
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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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