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Electrolyte for low-corrosivity electrolytic condenser and method for making the same

An electrolytic capacitor, corrosive technology, applied in the field of electrolyte, can solve the problems of non-compliance, reduce the conductivity of the electrolyte, etc., and achieve the effect of preventing hydration reaction, strong anti-hydration ability, and inhibiting hydration

Active Publication Date: 2017-12-29
东莞市承兴电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ammonia water in the electrolyte will generate a large amount of ammonia gas during use, and will also reduce the conductivity of the electrolyte, which does not meet the requirements for the electrolyte of aluminum electrolytic capacitors.

Method used

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  • Electrolyte for low-corrosivity electrolytic condenser and method for making the same
  • Electrolyte for low-corrosivity electrolytic condenser and method for making the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, a kind of electrolytic solution for electrolytic capacitor of low corrosion

[0034] The electrolytic solution for the low-corrosion electrolytic capacitor consists of the following components and parts by weight thereof:

[0035] 120 parts of ethylene glycol, 16 parts of ammonium adipate, 12 parts of ammonium formate, 4 parts of additives and 30 parts of ultrapure water; Said additive consists of ethylene glycol 78%, diammonium hydrogen phosphate 2%, phosphoric acid 4%, para Nitrobenzoic acid 1%, ammonium p-nitrobenzoate 2%, complexing agent 4%, surfactant 3% and corrosion inhibitor 6% form; Described complexing agent is made up of ethylenediaminetetraacetic acid and citric acid by weight The composition ratio is 1:4; the surfactant is composed of polysorbate 80 and mannitol in a weight ratio of 0.5:5; the corrosion inhibitor is composed of 8-hydroxyquinoline and silicon dioxide in a weight ratio of 1:6.

[0036] Preparation:

[0037] S1: Add ammonium a...

Embodiment 2

[0039] Embodiment 2, a kind of electrolytic solution for electrolytic capacitor with low corrosion

[0040] The electrolytic solution for the low-corrosion electrolytic capacitor consists of the following components and parts by weight thereof:

[0041] 145 parts of ethylene glycol, 16 parts of ammonium adipate, 16 parts of ammonium formate, 7 parts of additives and 40 parts of ultrapure water, described additives are made of ethylene glycol 68%, diammonium hydrogen phosphate 4%, phosphoric acid 6%, Nitrobenzoic acid 2%, ammonium p-nitrobenzoate 3%, complexing agent 5%, surfactant 5% and corrosion inhibitor 7% form; Described complexing agent is made up of ethylenediaminetetraacetic acid and citric acid by weight The composition ratio is 2:3; the surfactant is composed of polysorbate 20 and mannitol in a weight ratio of 1:4; the corrosion inhibitor is composed of 8-hydroxyquinoline and silicon dioxide in a weight ratio of 2:5.

[0042] Preparation:

[0043] S1 Add ammonium a...

Embodiment 3

[0045] Embodiment 3, a kind of electrolytic solution for electrolytic capacitor with low corrosion

[0046] The electrolytic solution for the low-corrosion electrolytic capacitor consists of the following components and parts by weight thereof:

[0047] 150 parts of ethylene glycol, 20 parts of ammonium adipate, 18 parts of ammonium formate, 8 parts of additives and 60 parts of ultrapure water; Said additive consists of ethylene glycol 60%, diammonium hydrogen phosphate 5%, phosphoric acid 8%, para Nitrobenzoic acid 3%, ammonium p-nitrobenzoate 4%, complexing agent 6%, surfactant 6% and corrosion inhibitor 8% form; Described complexing agent is made up of ethylenediaminetetraacetic acid and citric acid by weight The composition ratio is 3:2; the surfactant is composed of polysorbate 20 and mannitol in a weight ratio of 2:3; the corrosion inhibitor is composed of 8-hydroxyquinoline and silicon dioxide in a weight ratio of 3:4.

[0048] Preparation:

[0049] S1 Add ammonium ad...

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Abstract

The invention, which belongs to the technical field of the electrolyte, particularly relates to an electrolyte for a low-corrosivity electrolytic condenser and a method for making the same. The electrolyte is mainly composed of ethylene glycol, ammonium adipate, ammonium formate, additives and ultrapure water. The additives consist of ethylene glycol, diammonium hydrogen phosphate, phosphoric acid, p-nitrobenzoic acid, ammonium 4-nitrobenzoate dihydrate, a complexing agent, an interfacial agent and a corrosion inhibitor. The electrolyte which is suitable for a low-voltage electrolytic condenser has advantages of high frequency, low impedance, low electric leakage, and low corrosivity. According to the electrolyte, the service life of the electrolytic condenser is prolonged effectively by suppressing a hydration degradation reaction of an electrode aluminum foil and re rising of leak currents; and with the electrolyte, bottom heaving of the electrolytic condenser is avoided and thus the safety of the electrolytic condenser is enhanced substantially.

Description

technical field [0001] The invention belongs to the technical field of electrolytic solutions, and in particular relates to an electrolytic solution for low-corrosion electrolytic capacitors and a manufacturing method thereof. Background technique [0002] Aluminum electrolytic capacitors are one of the basic components of electronic products and are widely used in notebook computers, ballasts, automotive electronics and other industries. With the rapid development of electronic technology, the further improvement of the assembly density and integration degree of electronic complete machines puts forward higher requirements for the comprehensive performance of aluminum electrolytic capacitors. At present, the performance disadvantages of electrolytic capacitors are mainly large leakage current and loss value, short life, limited application range, etc., which cannot meet the needs of modern electronic products. [0003] At present, the performance of many modern electronic ...

Claims

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Application Information

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IPC IPC(8): H01G9/035
CPCH01G9/035
Inventor 吴仲钦黄金焕
Owner 东莞市承兴电子有限公司
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