Unlock instant, AI-driven research and patent intelligence for your innovation.

Working electrolyte and preparation method of aluminum electrolytic capacitor for 550wv strobe lamp

A technology of aluminum electrolytic capacitors and electrolytes, applied in electrolytic capacitors, capacitors, circuits, etc., to achieve long life, excellent stroboscopic characteristics, and reduce ion collision effects

Active Publication Date: 2021-01-15
江西联晟电子股份有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, there is a lack of a working electrolyte and preparation method for aluminum electrolytic capacitors for 550WV strobe lights that can meet the requirements of the European Chemicals Agency and meet the needs of the world market in the existing market

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Working electrolyte and preparation method of aluminum electrolytic capacitor for 550wv strobe lamp
  • Working electrolyte and preparation method of aluminum electrolytic capacitor for 550wv strobe lamp
  • Working electrolyte and preparation method of aluminum electrolytic capacitor for 550wv strobe lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Weigh by weight: 50 parts of ethylene glycol, 6 parts of adipic acid, 8 parts of dimethyl sulfoxide, 13.5 parts of N,N-dimethylformamide, 11 parts of organic amine, 10 parts of diethylene glycol ether, 0.3 parts of ammonium hypophosphite; 1.2 parts of p-nitrobenzyl alcohol.

[0053] The raw materials weighed above are used to prepare boron-free ultra-high voltage (550WV) working electrolyte with good stroboscopic characteristics:

[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 constant temperature at 145°C for 180 minu...

Embodiment 2

[0062] Weigh by weight: 58 parts of ethylene glycol, 3 parts of suberic acid, 6 parts of N,N-dimethylformamide, 9 parts of methyl cyanide, 7 parts of organic amine, 15 parts of polyethylene glycol ether, 0.5 parts of ammonium hypophosphite; 1.5 parts of p-nitrobenzyl alcohol.

[0063] The raw materials weighed above are used to prepare boron-free ultra-high voltage (550WV) working electrolyte with good stroboscopic characteristics:

[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 constant temperature at 145°C for 180 minute...

Embodiment 3

[0072] Weigh by weight: 55 parts of ethylene glycol, 5 parts of hydrogen azelaic acid, 5 parts of acetone, 7 parts of 4-hydroxybutyrolactone, 6 parts of organic amine, 20 parts of polyglyceryl ether, 0.8 parts of ammonium hypophosphite Parts; 1.2 parts of p-nitrobenzyl alcohol.

[0073] The raw materials weighed above are used to prepare boron-free ultra-high voltage (550WV) working electrolyte with good stroboscopic characteristics:

[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 constant temperature at 145°C for 180 min...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention particularly relates to a working electrolyte of an aluminum electrolytic capacitor for a 550-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 550-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 550WV 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

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/035
Inventor 程学鹏
Owner 江西联晟电子股份有限公司