A kind of ceramic material with high energy storage performance and ultrafast discharge rate and preparation method thereof

A discharge rate and ceramic material technology, applied in the field of ceramic materials with high energy storage performance and ultra-fast discharge rate and its preparation, can solve the problems of high remnant polarization, low dielectric breakdown field, and obstacles to practical applications , to achieve the effect of improving the dielectric breakdown field strength, high density, and suppressing the remnant polarization
CN110759729BActive Publication Date: 2022-06-07SHAANXI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Publication Date
2022-06-07

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Abstract

The invention provides a ceramic material with high energy storage performance and ultra-fast discharge rate and a preparation method thereof, the chemical formula is: (1-x)(Na 0.5 Bi 0.5 ) 0.7 Sr 0.3 TiO 3 ‑xBi(Mg 2 / 3 Nb 1 / 3 )O 3 , where 0.05≤x≤0.20. Including the following steps: (1) SrCO 3 、Na 2 CO 3 、TiO 2 、 Bi 2 o 3 , MgO and Nb 2 o 5 Mixing evenly to obtain raw material powder, briquetting, pre-calcining, crushing and sieving to obtain pre-calcined powder; (2) ball milling the pre-calcined powder to obtain raw material powder; (3) pressing the raw material powder into tablets, Then sintered into porcelain to obtain a ceramic material with high energy storage performance and ultra-fast discharge rate. This ceramic material, with its high energy storage performance and excellent charge-discharge performance, is a promising candidate for high-performance dielectrics, as well as being environmentally friendly and highly practicable.
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Description

technical field

[0001] The invention belongs to the technical field of dielectric energy storage ceramic materials, in particular to a ceramic material with high energy storage performance and ultra-fast discharge rate and a preparation method thereof. Background technique

[0002] At present, ceramic capacitors have been widely used in electronic equipment such as televisions, mobile communications, and measuring instruments. However, with the rapid development of the electronics industry and the waste of non-renewable resources, the existing energy storage dielectric capacitors have been unable to meet the increasing demands of social development due to the poor performance of the dielectric materials, which has stimulated people's interest in high-performance ceramic dielectrics. Material exploration interest. Compared with ferroelectric materials and linear dielectric materials, antiferroelectric materials have higher energy densities because they have double hysteresis...

Claims

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