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Capacitor electrolyte solution and capacitor using electrolyte solution

A technology for capacitors and electrolytes, applied in the field of electrolytes, can solve the problems of affecting the low-temperature performance of capacitors, restricting capacitor performance, and low oxidation efficiency of linear carboxylate systems, so as to inhibit the increase of saturated vapor pressure, prevent hydration and erosion. , the effect of good electromagnetic compatibility

Active Publication Date: 2018-02-23
NANTONG JIANGHAI CAPACITOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the linear carboxylate crystallizes out at low temperature, which affects the low-temperature performance of the capacitor.
And the oxidation efficiency of linear carboxylate system is low
These problems restrict the further improvement of capacitor performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method for realizing the electrolytic solution of the aluminum electrolytic capacitor comprises the following steps:

[0024] (1) Add ethylene glycol and deionized water into the container in proportion, heat up, and add ammonium formate when the temperature rises to 50-60°C;

[0025] (2) After stirring evenly, heat up to 80-90°C, add phosphate, polyvinyl alcohol and p-nitrobenzyl alcohol, stir and dissolve, then add organic compounds;

[0026] (3) Heat up to 120-130 degrees and keep warm for 10-15 minutes before cooling down;

[0027] (4) Add carboxylic acid, phosphorus pentoxide and p-nitrobenzyl alcohol when the temperature drops to 100-110°C, and add tributylamine when the temperature continues to drop to 50-60°C, and stir well;

[0028] (5) The temperature is lowered to 20-25°C for canning and packaging.

[0029] Electrolyte parameters after preparation: conductivity (35 degrees) = 3.8±0.5ms / cm, pH value 6.5±1; flash voltage: >600V. It has good e...

Embodiment 2

[0031] On the basis of Example 1, the capacitor electrolyte is prepared by mixing the following raw materials in weight percentage: ethylene glycol 60%, ammonium formate 7%, deionized water 10%, organic polymer compound 7%, phosphate 0.5% , tributylamine 7%, polyvinyl alcohol 1%, p-nitrobenzyl alcohol 0.5%, carboxylic acid 1%, phosphorus pentoxide 5%, p-nitrobenzyl alcohol 1%.

[0032] The preparation method for realizing the electrolytic solution of the aluminum electrolytic capacitor comprises the following steps:

[0033] (1) Add ethylene glycol and deionized water into the container in proportion, heat up, and add ammonium formate when the temperature rises to 50-60°C;

[0034] (2) After stirring evenly, heat up to 80-90°C, add phosphate, polyvinyl alcohol and p-nitrobenzyl alcohol, stir and dissolve, then add organic compounds;

[0035] (3) Heat up to 120-130 degrees and keep warm for 10-15 minutes before cooling down;

[0036] (4) Add carboxylic acid, phosphorus pentox...

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PUM

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Abstract

The invention belongs to the field of electrochemistry, and discloses a capacitor electrolyte solution and a capacitor using the electrolyte solution. Ethylene glycol, ammonium formate, deionized water, organic high molecular compound, phosphate, tributylamine, polyvinyl alcohol, p-nitrobenzyl alcohol, carboxylic acid, phosphorous pentoxide and p-nitrobenzyl alcohol are mixed according to a certain mass ratio to prepare the capacitor electrolyte solution. Through addition of the organic high molecular compound, water molecules are fixed, the situation that water and the other harmful substances are in direct contact with dielectric film is prevented, improvement of saturated vapor pressure is inhibited, and hydration and corrosion are prevented. Parameters of the capacitor electrolyte solution are as follows, the conductivity (35 degrees) = 3.8 + / - 0.5 ms / cm, the pH value 6.5 + / - 1 and the broken voltage > 600 V. The capacitor electrolyte solution and the capacitor using the electrolyte solution have good electromagnetic compatibility and lightening resistance, can be widely applicable to the fields of mobile phone chargers and the like, and have very high economic value.

Description

technical field [0001] The invention relates to an electrolytic solution, in particular to a capacitor electrolytic solution and a capacitor using the electrolytic solution. Background technique [0002] Capacitors are irreplaceable basic components in various electronic products, and are widely used in electronic equipment including power supplies, motherboards, audio and uninterruptible power systems. In recent years, with the rapid development of electronic component integration and high-speed processing technology, the global market has put forward higher requirements for the performance of capacitor products. Small size, long life, high temperature resistance, high frequency ripple current resistance, and low impedance are the development trends of aluminum electrolytic capacitors. [0003] There are many factors that affect the performance of capacitors. In addition to the level of manufacturing technology and the quality of anode aluminum foil, the working electrolyt...

Claims

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Application Information

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IPC IPC(8): H01G9/035H01G9/145
Inventor 钱永才王汉明钱诚丁云飞柏林林郭熠锋
Owner NANTONG JIANGHAI CAPACITOR CO LTD
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