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High-voltage working electrolyte and preparation method thereof

An electrolyte, high-voltage technology, applied in the field of electrochemistry, can solve problems such as unfavorable performance of capacitors

Inactive Publication Date: 2011-05-25
东莞宏强电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional electrolyte preparation materials, if the flash voltage of the electrolyte is increased, its viscosity and resistivity will be increased, which is detrimental to the performance of the capacitor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of the above-mentioned high-voltage working electrolyte, comprising the following process steps:

[0027] (1) Mix 45g of ethylene glycol and 40g of γ-butyrolactone and heat to 80°C;

[0028] (2) Add 1g of nano silicon dioxide, 0.5g of mannitol and 2.2g of ethylenediaminetetraacetic acid, and mix;

[0029] (3) Heat to 120°C, add 11g of ammonium isosebacate, 0.2g of p-nitrobenzyl alcohol, and 0.1g of ammonium hypophosphite, and keep warm at 120°C until the mixture is completely dissolved;

[0030] (4) cooling to obtain a high-voltage working electrolyte.

Embodiment 2

[0032] A preparation method of the above-mentioned high-voltage working electrolyte, comprising the following process steps:

[0033] (1) Mix 45g of ethylene glycol and 40g of γ-butyrolactone and heat to 100°C;

[0034] (2) Add 2g of nano silicon dioxide, 0.5g of mannitol and 2.0g of ethylenediaminetetraacetic acid, and mix well;

[0035] (3) Heat to 130°C, add 8.6g of ammonium isosebacate, 1g of ammonium 1,10-dodecanoate, 0.5g of p-nitrobenzyl alcohol, 0.4 of ammonium hypophosphite, and keep warm at 130°C until the mixture is completely dissolved;

[0036] (4) cooling to obtain a high-voltage working electrolyte.

Embodiment 3

[0038] A preparation method of the above-mentioned high-voltage working electrolyte, comprising the following process steps:

[0039] (1) Mix 45g of ethylene glycol and 40g of γ-butyrolactone and heat to 80°C;

[0040] (2) Add 2g of nano silicon dioxide, 0.5g of mannitol and 2.2g of ethylenediaminetetraacetic acid, and mix;

[0041] (3) Heat to 130°C, add 10g of ammonium isosebacate, 0.2g of p-nitrobenzyl alcohol, and 0.1g of ammonium hypophosphite, and keep warm at 130°C until the mixture is completely dissolved;

[0042] (4) cooling to obtain a high-voltage working electrolyte.

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PUM

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Abstract

The invention provides a high-voltage working electrolyte, which comprises the following raw materials by weight portion: 5.5-11 portions of solute, 80-88 portions of composite solvent, 0.1-2.5 portions of dehydrogenating agent, 0.1-1portion of waterproof combined additive, 0-2 portions of sparking voltage improving agent, 0.5-3 portions of anti-corrosion additive and 0.5-1 portion of high temperature stabilizer. The solvent is heated to 70-100 DEG C. The invention also provides a preparation method of the electrolyte, which comprises the followings steps: adding the sparking voltage improving agent, the high temperature stabilizer and the anti-corrosion additive, and uniformly mixing; heating to 120-130 DEG C, adding the solute, the dehydrogenating agent and the waterproof combined additive, holding at a temperature of 120-130 DEG C until a mixture is completely dissolved; and cooling and then obtaining the high-voltage working electrolyte. The process is simple, and the conditions are easy to control. The high-voltage working electrolyte provided by the invention has the advantages of high sparking voltage, high temperature resistance and long service life.

Description

technical field [0001] The invention relates to the technical field of electrochemistry, in particular to a high-voltage working electrolyte and a preparation method thereof. Background technique [0002] Aluminum electrolytic capacitors have incomparable advantages over other capacitors. It has large capacity, low production cost, and high reliability, and is widely used in various electrical appliances such as televisions. Although various capacitors with excellent performance have been sold on the market, research on new and high-performance capacitors is still in the ascendant. Chip-type aluminum electrolytic capacitors are high-end products in electrolytic capacitors. They use high-molecular polymers as electrolytes. They often use surface mount technology to mount components (chip electronic components), which has a great impact on the high-temperature resistance of the electrolyte. high demands. Some factors can cause electrolytic capacitors to fail, such as extrem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/035
Inventor 汪衍石木果
Owner 东莞宏强电子有限公司
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