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Electrolyte of aluminum electrolytic capacitor, aluminum electrolytic capacitor and electronic device

An aluminum electrolytic capacitor and electrolyte technology, applied in the field of electrochemistry, can solve problems such as valve opening, bulging, and failure of products, and achieve the effects of prolonging life, reducing internal air pressure, and increasing density

Active Publication Date: 2021-06-08
深圳市智胜新电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, the existing aluminum electrolytic capacitors will gradually increase the internal air pressure with the extension of service life during use. When the internal air pressure exceeds the explosion-proof pressure When the valve is opened, the product will open, and then bulge or even fail.

Method used

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  • Electrolyte of aluminum electrolytic capacitor, aluminum electrolytic capacitor and electronic device
  • Electrolyte of aluminum electrolytic capacitor, aluminum electrolytic capacitor and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Formula: alcohol solvent (ethylene glycol) 55.9%, auxiliary solvent (diethylene glycol 18%, mannitol 2%) 20%, solute (boric acid 1%, ammonium hydrogen azelate 1%, ammonium benzoate 1%, 2,7-dibutyl ammonium suberate 3%, alkyl ammonium sebacate 8%, 11-vinyl-8-octadecenedioic acid 4.4%, butyl phosphate 0.1%) 18.5%, flash fire Voltage booster (polyvinyl alcohol 0.5%, SiO 2 Dispersion liquid 2.5%) 3%, corrosion inhibitor (ammonium hypophosphite) 0.1% and new hydrogen remover (2-methyl-2-(4-nitrobenzene)-1,3-dioxane ) 2.5%.

[0052] Preparation method: Add ethylene glycol into the reaction bottle to start heating, and under stirring conditions, add polyvinyl alcohol when heated to 145°C, and keep warm for 30 minutes; when the temperature drops to 140°C, add diethylene glycol, keep warm for 5 minutes; wait for the temperature to drop Add mannitol and boric acid at 130°C and keep warm for 20 minutes; then add 11-vinyl-8-octadecenedioic acid, butyl phosphate, ammonium hydrogen...

Embodiment 2

[0054] Formula: alcohol solvent (ethylene glycol) 63.9%, auxiliary solvent (diethylene glycol 10%, mannitol 2%) 12%, solute (boric acid 1%, 11-vinyl-8-octadecenedioic acid 4.4% , butyl phosphate 0.1%, ammonium dodecanoate 1%, ammonium benzoate 1%, 2,7-dibutyl ammonium suberate 3%, alkyl ammonium sebacate 8%) 18.5%, flash fire Voltage booster (polyvinyl alcohol 0.5%, SiO 2 Dispersion liquid 2.5%) 3%, corrosion inhibitor (ammonium hypophosphite) 0.1% and new hydrogen remover (2-methyl-2-(4-nitrobenzene)-1,3-dioxane ) 2.5%.

[0055]Preparation method: Add ethylene glycol into the reaction bottle to start heating, and under stirring conditions, add polyvinyl alcohol when heated to 145°C, and keep warm for 30 minutes; when the temperature drops to 140°C, add diethylene glycol, keep warm for 5 minutes; wait for the temperature to drop Add mannitol and boric acid at 130°C and keep warm for 20 minutes; then add 11-vinyl-8-octadecenedioic acid, butyl phosphate, ammonium dodecanoate a...

Embodiment 3

[0057] Formula: alcohol solvent (ethylene glycol) 62.8%, auxiliary solvent (diethylene glycol 10%, mannitol 2%) 12%, solute (ammonium sebacate 3%, ammonium benzoate 1%, alkyl sebacic acid Ammonium 10%, 11-vinyl-8-octadecenedioic acid 4.9%, butyl phosphate 0.1%, ammonium pentaborate 2%) 21%, flash voltage booster (polyethylene glycol 1%, polyethylene Alcohol 0.5%) 1.5%, corrosion inhibitor (ammonium hypophosphite) 0.2% and new hydrogen remover (2-methyl-2-(4-nitrobenzene)-1,3-dioxane) 2.5%.

[0058] Preparation method: Add ethylene glycol, diethylene glycol and polyethylene glycol respectively into the reaction bottle, and start heating under stirring conditions, and add ammonium sebacate, ammonium benzoate and alkyl ammonium sebacate when heating to 80°C , 11-vinyl-8-octadecenedioic acid, and butyl phosphate are fully dissolved, continue to add polyvinyl alcohol and raise the temperature to 140°C, and keep warm for 30 minutes; then add ammonium pentaborate, ammonium hypophosp...

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Abstract

The invention discloses an electrolyte of an aluminum electrolytic capacitor, the aluminum electrolytic capacitor and an electronic device, and relates to the technical field of electrochemistry. The electrolyte of the aluminum electrolytic capacitor comprises the following components: an alcohol solvent, an auxiliary solvent, a solute, a sparking voltage boosting agent, a corrosion inhibitor and a novel hydrogen elimination agent. The electrolyte of the aluminum electrolytic capacitor provided by the invention has the advantages that: firstly, by introducing the solute with a long carbon chain and a branched chain, esterification reaction of the electrolyte at a high temperature is inhibited, moisture is reduced, and the high-temperature stability of a product is improved; and secondly, through the synergistic effect of the auxiliary solvent and a novel hydrogen eliminating agent, the internal air pressure of the aluminum electrolytic capacitor is kept in a stable range, safety and stability are achieved, bulging of the aluminum electrolytic capacitor is prevented, and the service life of the aluminum electrolytic capacitor is prolonged.

Description

technical field [0001] The invention relates to the technical field of electrochemistry, in particular to an electrolytic solution of an aluminum electrolytic capacitor, an aluminum electrolytic capacitor and an electronic device. Background technique [0002] Aluminum electrolytic capacitor is a very important basic electronic component, which can be used as filter and bypass of electronic circuit, and can also play the role of coupling and decoupling. In addition, it also plays a special role in some circuits, such as being It is used in special occasions such as image correction circuit, phase shifting circuit, frequency division circuit, timing circuit and pulse circuit. Because of the strong applicability of aluminum electrolytic capacitors, it is widely used in many industries and fields, such as electrical equipment, communication equipment, medical equipment, electronic instruments, automotive equipment, entertainment equipment, aerospace and so on. With the develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/035H01G9/145
CPCH01G9/035H01G9/145
Inventor 林翠华余克壮余远钦雷彦林林裕展
Owner 深圳市智胜新电子技术有限公司
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