Electrolyte suitable for high-voltage aluminum electrolytic capacitor and preparation method thereof

A technology of aluminum electrolytic capacitors and electrolytes, which is applied in the manufacture of electrolytic capacitors, electrolytic capacitors, capacitors, etc., can solve the problems of poor electrolyte performance, poor high and low temperature resistance, and the service life of aluminum electrolytic capacitors cannot be further improved. Application prospect, effect of service life improvement

Active Publication Date: 2019-07-12
HUNAN AIHUA GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The electrolyte in the aluminum electrolytic capacitor is related to the service life of the capacitor. A reasonable electrolyte can...

Method used

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  • Electrolyte suitable for high-voltage aluminum electrolytic capacitor and preparation method thereof

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Embodiment 1

[0023] An electrolyte suitable for high-voltage aluminum electrolytic capacitors, comprising the following raw materials in parts by weight: 40 parts of 4-hydroxybutyrolactone, 60 parts of polyethylene glycol, 50 parts of ethylene glycol, 30 parts of ethylene carbonate, carbonic acid 40 parts of propylene ester, 30 parts of diethyl carbonate, 20 parts of dimethyl carbonate, 10 parts of ethyl methyl carbonate, 20 parts of ammonium azelate, 30 parts of ammonium dodecanoate, 10 parts of benzoic acid, 40 parts of ammonium formate , 40 parts of diammonium hydrogen phosphate, 30 parts of phthalic acid, 10 parts of boric acid, 10 parts of p-nitrophenol, 5 parts of sodium hypophosphite, 10 parts of o-nitroanisole, and 20 parts of monobutyl phosphate.

[0024] In this embodiment, the steps of the preparation method of the electrolyte suitable for high-voltage aluminum electrolytic capacitors are as follows:

[0025] 1) 4-hydroxybutyrolactone, polyethylene glycol, ethylene glycol, ethyl...

Embodiment 2

[0031] An electrolyte suitable for high-voltage aluminum electrolytic capacitors, comprising the following raw materials in parts by weight: 45 parts of 4-hydroxybutyrolactone, 65 parts of polyethylene glycol, 55 parts of ethylene glycol, 35 parts of ethylene carbonate, carbonic acid 45 parts of acrylate, 32 parts of diethyl carbonate, 23 parts of dimethyl carbonate, 12 parts of ethyl methyl carbonate, 25 parts of ammonium azelate, 35 parts of ammonium dodecanoate, 15 parts of benzoic acid, 45 parts of ammonium formate , 42 parts of diammonium hydrogen phosphate, 32 parts of phthalic acid, 12 parts of boric acid, 12 parts of p-nitrophenol, 6 parts of sodium hypophosphite, 12 parts of o-nitroanisole, and 22 parts of monobutyl phosphate.

[0032] In this embodiment, the steps of the preparation method of the electrolyte suitable for high-voltage aluminum electrolytic capacitors are as follows:

[0033] 1) 4-hydroxybutyrolactone, polyethylene glycol, ethylene glycol, ethylene car...

Embodiment 3

[0039] An electrolyte suitable for high-voltage aluminum electrolytic capacitors, comprising the following raw materials in parts by weight: 50 parts of 4-hydroxybutyrolactone, 70 parts of polyethylene glycol, 60 parts of ethylene glycol, 40 parts of ethylene carbonate, carbonic acid 50 parts of acrylate, 35 parts of diethyl carbonate, 25 parts of dimethyl carbonate, 15 parts of ethyl methyl carbonate, 30 parts of ammonium azelate, 40 parts of ammonium dodecanoate, 20 parts of benzoic acid, 50 parts of ammonium formate , 45 parts of diammonium hydrogen phosphate, 35 parts of phthalic acid, 15 parts of boric acid, 15 parts of p-nitrobenzene, 8 parts of sodium hypophosphite, 15 parts of o-nitroanisole, and 25 parts of monobutyl phosphate.

[0040] In this embodiment, the steps of the preparation method of the electrolyte suitable for high-voltage aluminum electrolytic capacitors are as follows:

[0041] 1) 4-hydroxybutyrolactone, polyethylene glycol, ethylene glycol, ethylene ca...

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Abstract

The invention discloses an electrolyte suitable for a high-voltage aluminum electrolytic capacitor and a preparation method thereof and belongs to the technical field of high-voltage aluminum electrolytic capacitors. The electrolyte solution suitable for the high-voltage aluminum electrolytic capacitor comprises the following raw materials including, by weight, 40 to 60 parts of 4-hydroxybutyrolactone, 60 to 80 parts of polyethylene glycol, 50 to 70 parts of ethylene glycol, 30 to 50 parts of ethylene carbonate, 40 to 60 parts of propylene carbonate, 30 to 40 parts of diethyl carbonate, 20 to30 parts of dimethyl carbonate, 10 to 20 parts of ethyl methyl carbonate, 20 to 40 parts of ammonium azelate, 30 to 50 parts of ammonium dodecanedioate, 10 to 30 parts of benzoic acid, 40 to 60 partsof ammonium formate, 40 to 50 parts of diammonium hydrogen phosphate, 30 to 40 parts of phthalic acid, 10 to 20 parts of boric acid, 10 to 20 parts of p-nitrophenol, 5 to 10 parts of sodium hypophosphite, 10 to 20 parts of o-nitroanisole, and 20 to 30 parts of monobutyl phosphate. The preparation method of the invention has a simple preparation method and has a broad application prospect.

Description

technical field [0001] The invention relates to the technical field related to high-voltage aluminum electrolytic capacitors, in particular to an electrolyte suitable for high-voltage aluminum electrolytic capacitors and a preparation method thereof. Background technique [0002] A capacitor is an energy storage element used in circuits for tuning, filtering, coupling, bypassing, energy conversion, and time delay. Capacitors are often called capacitors. According to its structure, it can be divided into three types: fixed capacitors, semi-variable capacitors, and variable capacitors. An aluminum electrolytic capacitor is made of an aluminum cylinder as the negative electrode, which is filled with a liquid electrolyte, and a bent aluminum strip is inserted as the positive electrode. The capacitor is called an aluminum electrolytic capacitor. It is a general-purpose electrolytic capacitor made of aluminum material with good electrical performance, wide application range and ...

Claims

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Application Information

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IPC IPC(8): H01G9/035H01G9/00
CPCH01G9/0029H01G9/035
Inventor 刘芳洋贾明艾亮杨娟张红亮
Owner HUNAN AIHUA GRP
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