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Capacitor

A technology for capacitors and electrodes, which is applied in the field of capacitors and can solve problems such as the difficulty in forming conductive polymer layers uniformly

Inactive Publication Date: 2014-11-12
CHENGDU JINGRONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in chemical polymerization and electrolytic polymerization, it is difficult to form a conductive polymer layer uniformly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put 5,000 grams of potassium fluoroniobate fully vacuum-dried at 80°C and sodium whose molar mass is 10 times that of potassium fluoroniobate into a nickel crucible, and make it undergo a reduction reaction at 1,000°C for 20 hours under an argon atmosphere . After the reaction was complete, the reduced product was cooled, washed successively with water, 95% sulfuric acid, and then water, dried in vacuum and pulverized for 40 hours using an alumina jar ball mill containing silica alumina balls. The pulverized product was immersed and stirred in a 3:2 (by mass) mixed solution of 50% nitric acid and 10% aqueous hydrogen peroxide solution. Then, the pulverized product was sufficiently washed with water until the pH value reached 7 to remove impurities, and then vacuum-dried. The average particle size of the raw niobium powder was 1.2 microns.

[0019] In a niobium tank, 500 g of this raw niobium powder was placed and 50 g of polybutylmethacrylate and 1 liter of toluene we...

Embodiment 2

[0024] Embodiment 2: the preparation of formula I compound crystal

[0025] 106 g of benzaldehyde, 400 g of o-fluoroaniline, 450 g of hydrochloric acid (about 30%) and 800 ml of water were heated in an autoclave at 120-140° C. for 6 hours. The reaction mixture was poured on 1 kg of ice and 500 g of sodium hydroxide solution (30%). The organic layer was separated and the excess o-fluoroaniline was separated with toluene. The residue was recrystallized from toluene and the filter cake was washed with cold ethanol. The compound of formula I was obtained; yield: 41%. Accurately weigh the above compound with an analytical balance, put the weighed compound into an agate grinding body in a fume hood, grind it thoroughly to mix it evenly, and then put the sample into a platinum crucible. In order to make the post-reaction go smoothly, put it into a box furnace for pre-calcination and grinding at 90°C. Finally, keep the temperature at 70°C for 5h, and cool slowly to room temperatur...

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PUM

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Abstract

The invention provides a capacitor. The capacitor comprises a compound crystal shown in the formula I. A crystal compound belongs to the triclinic crystal system, according to a P-1 space group, a is equal to 1.09091, b is equal to 1.16257, c is equal to 1.94343, alpha is equal to 81.38 degrees, beta is equal to 84.47 degrees, gamma is equal to 65.29 degrees and V is equal to 2.2122.

Description

technical field [0001] The invention relates to a capacitor which has the excellent characteristics of low equivalent series resistance and low initial defective rate of leakage current. Background technique [0002] With the increase in frequency of electronic equipment, capacitors that are one of electronic components require large-capacity capacitors that are excellent in impedance characteristics in high-frequency regions. Recently, in order to reduce the impedance in this high-frequency region, electrolytic capacitors using conductive polymers with high electrical conductivity have been studied and commercialized. An electrolytic capacitor includes an anode foil, a dielectric coating formed on the surface of the anode foil, and a conductive polymer layer formed on the dielectric coating. The surface of the anode foil is roughened and formed with a plurality of pores. As a method of forming a conductive polymer layer, in addition to chemical polymerization and electrol...

Claims

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Application Information

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IPC IPC(8): H01G9/042H01G9/052
Inventor 宋刚
Owner CHENGDU JINGRONG ELECTRONICS
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