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Material for manufacturing solid-state energy storage capacitor

A kind of energy storage capacitor, solid-state technology, applied in fixed capacitance components, fixed capacitor dielectric, etc., can solve the problems of large thermal dispersion of electrical performance, low reliability, large volume, etc., and achieve the effect of good energy storage characteristics

Active Publication Date: 2014-05-21
SHAANXI HUAXING ELECTRONICS DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing energy storage capacitors use polypropylene or mica capacitors, which are not only bulky, but also have large thermal dispersion in electrical properties and low reliability

Method used

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  • Material for manufacturing solid-state energy storage capacitor
  • Material for manufacturing solid-state energy storage capacitor
  • Material for manufacturing solid-state energy storage capacitor

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Embodiment Construction

[0038] Main material preparation: get lead oxide, zirconium oxide, titanium oxide, lanthanum oxide, barium carbonate, silver oxide, bismuth oxide to configure 10 kilograms of main material raw materials according to the formula described in table 1, press " batching-abrasive-baking material-calcining (850 ±5℃)-crushing-fine grinding (D 50 ≤2μ)-drying” process route to prepare main materials for use.

[0039] Preparation of auxiliary materials: Take 40 grams of boron oxide, 40 grams of silicon oxide, 10 grams of aluminum oxide, 50 grams of zinc oxide, 370 grams of cadmium oxide, 240 grams of bismuth oxide, and 250 grams of lead oxide to configure 1 kg of auxiliary materials. Drying - calcining (850±5°C) - cold water extraction - fine grinding (D 50 ≤1μ)-drying” process route to prepare auxiliary materials for use.

[0040] Preparation of the present invention: according to the material formula described in Table 1, the main material and auxiliary materials are uniformly mixed...

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Abstract

The invention relates to a material for manufacturing a solid-state energy storage capacitor, which is made by the following main materials in percentage by weight: 54.90-57.78 percent of lead oxide, 24.29-28.21 percent of zirconium oxide, 5.62-8.86 percent of titanium oxide, 4.68-5.52 percent of lanthanum oxide, 0-4.80 percent of barium carbonate, 0.67-0.71 percent of silver oxide and 0-1.43 percent of bismuth oxide. The material has the beneficial effects that the capacitance of the capacitor prepared by the material can present a better upward trend within a wider operating temperature range (55 DEG C below zero-125 DEG C above zero), and a dielectric constant of the capacitor is larger than 1,500; moreover, the capacitance of the capacitor has a positive voltage temperature coefficient after rated voltage is applied; and particularly, the upward trend of a positive capacitance-temperature characteristic curve is basically consistent with that of a positive capacitance-voltage characteristic curve, and the requirements of the solid-state energy storage capacitor on the material are completely met.

Description

technical field [0001] The invention belongs to the technical field of electronic functional materials, and in particular relates to a material for making solid-state energy storage capacitors. Background technique [0002] At present, the main materials used to make ordinary ceramic capacitors (disc type, chip multilayer) are divided according to temperature characteristics: Class I ceramics SL, KL, COG and Class II ceramics X 7 R, Y 5 P, Y 5 U and Y 5 V and other groups. The performance parameters of the above groups of electronic ceramic materials only meet the requirements of the four major parameters (dielectric constant K, dielectric loss, temperature characteristics, and withstand voltage characteristics) required by general conventional ceramic capacitors, and there is a common defect that is in the normal Within the working temperature range (usually -25°C ~ +85°C), the capacity changes show a characteristic of rising and falling, and the capacitance will show a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/12C04B35/01
Inventor 李文兴
Owner SHAANXI HUAXING ELECTRONICS DEV
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