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Temperature-resistant electrolyte for aluminum electrolysis and application thereof

An aluminum electrolysis and electrolyte technology, applied in electrolytic capacitors, circuits, capacitors, etc., can solve problems such as insufficient high temperature resistance, poor current resistance to stable waves, and low product stability, and achieve high flashover voltage and high temperature resistance Good performance and long service life

Inactive Publication Date: 2010-10-20
GUANGDONG FENGHUA ADVANCED TECH HLDG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above technical problems, the technical problem to be solved by the present invention is to solve the problems of insufficient high temperature resistance, low stability of the product at high temperature and poor current resistance to stable waves in the prior art aluminum electrolytic capacitors.

Method used

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  • Temperature-resistant electrolyte for aluminum electrolysis and application thereof
  • Temperature-resistant electrolyte for aluminum electrolysis and application thereof

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Embodiment

[0014] An electrolyte solution for high-temperature-resistant aluminum electrolysis, the quality of which is the formulation of the electrolyte solution No. 1-5 in the embodiment, and the formulation of the electrolyte solution No. 1-5 is formulated by using the cooking process commonly used by those skilled in the art. That is, heat the main solvent and auxiliary solvent to above 150°C, anneal and cool to 135°C, add solute, anti-corrosion agent, additive for increasing flash fire voltage, hydrogen scavenger, and water-repellent mixture to completely dissolve them, and then it can be ready after natural cooling Electrolyte No. 1-5. This group of electrolytes was used to make the electrolytes of the examples respectively to make 4.7μF / 400V Φ12.5×20 products. The high-temperature life performance of the products obtained is shown in Table 2. Test frequency / temperature: 120Hz / 25°C; test equipment It is AC and DC life test power supply and high temperature oven.

[0015] Table 1:...

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Abstract

The invention discloses temperature-resistant electrolyte for aluminum electrolysis and application thereof. The electrolyte comprises the following components in percentage by mass: 37.5 to 89.5 percent of main solvent, 5 to 25 percent of auxiliary solvent, 4 to 20 percent of solute, 0.2 to 1 percent of anticorrosive agent, 1 to 15 percent of additive for increasing a breakdown voltage, 0.2 to 1 percent of hydrogen-eliminating agent and 0.1 to 0.5 percent of hydration preventing agent. The electrolyte has the characteristics of high-temperature resistance, high corrosion resistance, high breakdown voltage and the like. The upper limit working temperature of an aluminum electrolytic capacitor prepared by using the electrolyte of the invention is as high as 150 DEG C, the service life is 2,000 hours at the temperature of 150 DEG C, so that the product can completely meet the strict requirements of high-power electric energy-saving lights, automobile electrics and the like on high-temperature resistance and long service life.

Description

technical field [0001] The invention relates to an electrolytic solution product for aluminum electrolytic capacitors, in particular to an electrolytic solution for high temperature resistant aluminum electrolysis and its application. Background technique [0002] With the popularization and application of electronic energy-saving lamps and the rapid growth of automotive electronics, correspondingly, new technical requirements have been put forward for the demand for aluminum electrolytic capacitors (referred to as aluminum electrolysis). At present, the high-power electronic energy-saving lamps used in factories, large shopping malls, docks and other places generally have a power of more than 100W, which causes the heat generated by the lamp tube during normal lighting to cause the temperature rise of the circuit board to rise above 130°C; at the same time, the heat generated by the car engine Factors such as large size and tight space lead to higher requirements for high t...

Claims

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Application Information

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IPC IPC(8): H01G9/035H01G9/00
Inventor 赵石华赵勇刚陈明杰周庆波
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG
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