A kind of lead-free high energy storage density ceramic material and preparation method thereof

A technology of high energy storage density and ceramic material, applied in the field of energy storage ceramics, can solve the problems of high dielectric constant, limited application range, small dielectric constant, etc., to improve the dielectric constant, simple preparation process, energy storage Excellent effect
CN108751982BActive Publication Date: 2021-05-07SHAANXI 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
2021-05-07

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Abstract

A kind of lead-free high energy storage density ceramic material and preparation method thereof, first according to chemical formula (1‑x) (0.65BaTiO 3 -0.35Bi 0.5 Na 0.5 TiO 3 )‑xSrY 0.5 Nb 0.5 o 3 Perform batching, where x represents the mole fraction, and 0.06≤x≤0.12; obtain powder after ball milling and drying; add the obtained powder to the binder to granulate, stale for 24 to 48 hours, press into tablets, and debinding After treatment, it is sintered at 1100-1200°C to obtain a lead-free high energy storage density ceramic material. The ceramic material of the invention has a simple and stable preparation process, is suitable for industrial production, and has excellent energy storage properties. Based on the hysteresis loop calculation, the energy storage density of the ceramic material at room temperature can reach 1.0J / cm 3 Above; and under the electric field of 152kV / cm, the energy storage density can reach 1.36J / cm 3 .
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Description

technical field

[0001] The invention belongs to the field of energy storage ceramics, in particular to a lead-free high energy storage density ceramic material and a preparation method thereof. Background technique

[0002] In recent years, with the continuous progress of society and the continuous development of scientific and technological information technology, the energy problem is a very serious problem facing the world. Therefore, how to improve energy utilization and energy storage has become the focus of attention. The rapid and efficient development of advanced energy storage materials will greatly improve the efficiency of terminal energy utilization. At present, the main energy storage devices include traditional batteries, nickel series and lithium series batteries, material fuel cells, supercapacitors and dielectric capacitors, etc. Modern electronic technology requires devices such as capacitors to be lighter and lighter in weight, smaller in size, and higher...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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