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Working electrolyte of aluminum electrolytic capacitor for 500-WV strobe lamp and preparation method thereof

A technology of aluminum electrolytic capacitors and preparation methods, applied in electrolytic capacitors, capacitors, circuits, etc., to achieve the effects of excellent stroboscopic characteristics, reduced ion collisions, and long life

Active Publication Date: 2018-01-30
江西联晟电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In summary, there is a lack of a working electrolyte and preparation method for aluminum electrolytic capacitors for 500WV strobe lamps that can meet the requirements of the European Chemicals Agency and meet the needs of the world market in the existing market

Method used

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  • Working electrolyte of aluminum electrolytic capacitor for 500-WV strobe lamp and preparation method thereof
  • Working electrolyte of aluminum electrolytic capacitor for 500-WV strobe lamp and preparation method thereof
  • Working electrolyte of aluminum electrolytic capacitor for 500-WV strobe lamp and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Weigh by weight: 50 parts of ethylene glycol, 5.5 parts of adipic acid, 10 parts of dimethyl sulfoxide, 14 parts of N,N-dimethylformamide, 11 parts of organic amine, 8 parts of diethylene glycol ether, 0.3 parts of ammonium hypophosphite; 1.2 parts of p-nitrobenzyl alcohol.

[0053] Preparation of boron-free high-voltage (500WV) working electrolyte with good stroboscopic characteristics from the raw materials weighed above:

[0054] Step 1: Add ethylene glycol and adipic acid into the container, stir evenly and heat to 50°C; stop heating, stir until completely dissolved;

[0055] Step 2, then use a pipetting device to slowly drop in the organic amine and accelerate stirring for 30 minutes;

[0056] Step 3, adding diethylene glycol ether, hypophosphorous acid, and p-nitrobenzyl alcohol into the container successively and stirring;

[0057] Step 4, after adding the above-mentioned component materials in sequence, keep the temperature at 135°C for 150 minutes and stir; ...

Embodiment 2

[0062] Weigh by weight: 63 parts of ethylene glycol, 3 parts of suberic acid, 6 parts of N,N-dimethylformamide, 10 parts of methyl cyanide, 6 parts of organic amine, 10 parts of polyethylene glycol ether, 0.5 parts of ammonium hypophosphite; 1.5 parts of p-nitrobenzyl alcohol.

[0063] Preparation of boron-free high-voltage (500WV) working electrolyte with good stroboscopic characteristics from the raw materials weighed above:

[0064] Step 1, add ethylene glycol and suberic acid into the container, stir evenly and heat to 50°C; stop heating, stir until completely dissolved;

[0065] Step 2, then use a pipetting device to slowly drop in the organic amine and accelerate stirring for 30 minutes;

[0066] Step 3, adding polyethylene glycol ether, hypophosphorous acid, and p-nitrobenzyl alcohol into the container successively and stirring;

[0067] Step 4, after adding the above-mentioned component materials in sequence, keep the temperature at 135°C for 150 minutes and stir;

...

Embodiment 3

[0072] Weigh by weight: 57 parts of ethylene glycol, 7 parts of hydrogen azelaic acid, 6 parts of acetone, 7 parts of 4-hydroxybutyrolactone, 6 parts of organic amine, 15 parts of polyglyceryl ether, 0.8 parts of ammonium hypophosphite Parts; 1.2 parts of p-nitrobenzyl alcohol.

[0073] Preparation of boron-free high-voltage (500WV) working electrolyte with good stroboscopic characteristics from the raw materials weighed above:

[0074] Step 1, add ethylene glycol and azelaic acid hydrogen into the container, stir evenly and heat to 50°C; stop heating, stir until completely dissolved;

[0075] Step 2, then use a pipetting device to slowly drop in the organic amine and accelerate stirring for 30 minutes;

[0076] Step 3, adding polyglyceryl ether, hypophosphorous acid, and p-nitrobenzyl alcohol into the container in sequence and stirring;

[0077] Step 4, after adding the above-mentioned component materials in sequence, keep the temperature at 135°C for 150 minutes and stir; ...

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Abstract

The invention particularly relates to a working electrolyte of an aluminum electrolytic capacitor for a 500-WV strobe lamp and a preparation method thereof. The electrolyte comprises the following rawmaterials, by weight: 50 to 80% of a base solvent, 5 to 15% of a second solvent, 5 to 20% of a third solvent, 2 to 20% of organic carboxylic acid, 2 to 20% of organic amine, 8 to 18% of organic ether, 0.1 to 1% of a passivant, and 0.2 to 2% of 4-nitrobenzyl alcohol. According to the invention, the second solvent and the third solvent are added in the first solvent-organic carboxylic acid-organicether system; with the first solvent being ethylene glycol, the second solvent, and the third solvent, the viscosity of the boron-system-free working electrolyte as well as the ion collision is reduced, so that the boron-free system with the ethylene glycol, organic carboxylic acid and organic ether becomes a working electrolyte of a 500-WV aluminum electrolytic capacitor, wherein the working electrolyte has advantages of high safety and stability, long service life, and excellent stroboscopic characteristic.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a working electrolyte for an aluminum electrolytic capacitor used in a 500WV strobe lamp and a preparation method thereof. Background technique [0002] Medium and high voltage aluminum electrolytic capacitors are widely used in general electronic circuits, and their main uses are energy storage, filtering, coupling, oscillation, phase shifting, step-down, integration, memory, etc. The working electrolyte of electrolytic capacitors, as the actual negative electrode of electrolytic capacitors, occupies an extremely important position in electrolytic capacitor products. It is responsible for whether the product can work normally for a long time and has the function of optimizing the electrical performance of the capacitor. [0003] The traditional working electrolyte for medium and high voltage aluminum electrolytic capacitors is boric acid or borate + ethylene glycol system, in wh...

Claims

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Application Information

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IPC IPC(8): H01G9/035
Inventor 程学鹏
Owner 江西联晟电子股份有限公司
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