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Chip type high-voltage aluminum electrolytic capacitor, electrolyte thereof and preparation method of electrolyte

A technology of aluminum electrolytic capacitors and electrolytes, applied in the direction of electrolytic capacitors, liquid electrolytic capacitors, capacitors, etc., can solve problems such as inapplicability

Inactive Publication Date: 2016-01-13
GUANGDONG FENGHUA ADVANCED TECH HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to solve the problem that the electrolyte solution for the existing high-voltage aluminum electrolytic capacitors above 160V cannot meet the conditions that the product can pass high-temperature reflow soldering, and is not suitable for surface mount technology, and provide a kind of high-temperature-resistant performance. Electrolyte for Chip Type High Voltage Aluminum Electrolytic Capacitors

Method used

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  • Chip type high-voltage aluminum electrolytic capacitor, electrolyte thereof and preparation method of electrolyte
  • Chip type high-voltage aluminum electrolytic capacitor, electrolyte thereof and preparation method of electrolyte
  • Chip type high-voltage aluminum electrolytic capacitor, electrolyte thereof and preparation method of electrolyte

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preparation example Construction

[0034] A method for preparing an electrolyte for a chip-type high-voltage aluminum electrolytic capacitor in an embodiment is used to prepare the above-mentioned electrolyte for a chip-type high-voltage aluminum electrolytic capacitor, comprising the following steps:

[0035] Mix the main solvent and auxiliary solvent and heat it to 95-105°C, then add the solute, heat it to 135-140°C, keep it warm for 10 minutes, and add preservatives, high-temperature stabilizers, hydrogen removers and Water-proof mixture, keep warm until the preservative, high-temperature stabilizer, hydrogen extinguisher and waterproof mixture are completely dissolved, and finally cool naturally to obtain the electrolyte for chip high-voltage aluminum electrolytic capacitors.

[0036] The preparation method of the electrolytic solution for the chip-type high-voltage aluminum electrolytic capacitor has a simple process, low requirements on equipment, and low preparation cost.

[0037] A chip-type high-voltag...

Embodiment 1

[0052] Preparation of Chip High Voltage Aluminum Electrolytic Capacitors

[0053] 1. Mix the main solvent and auxiliary solvent and heat it to 95°C, then add the solute to obtain the mixture, heat the mixture to 135°C, then keep it at 135°C for 10 minutes, add preservatives when the temperature is naturally lowered to 110°C, high temperature stability agent, hydrogen extinguishing agent and waterproof mixture, keep warm until the preservative, high temperature stabilizer, hydrogen extinguishing agent and waterproof mixture are completely dissolved, and cool naturally to obtain the electrolyte solution for chip high-voltage aluminum electrolytic capacitors;

[0054] Wherein, the mass percentages of main solvent, auxiliary solvent, solute, preservative, high temperature stabilizer, hydrogen suppressant and water-repellent mixture are shown in Table 1 below.

[0055] The main solvent is ethanol, the auxiliary solvent is polyethylene glycol 1000 and diethylene glycol with a mass r...

Embodiment 2

[0060] Preparation of Chip High Voltage Aluminum Electrolytic Capacitors

[0061] 1. Mix the main solvent and auxiliary solvent and heat it to 105°C, then add the solute to obtain the mixture, heat the mixture to 140°C, then keep it at 140°C for 10 minutes, add preservatives when the temperature is naturally cooled to 115°C, high temperature stability agent, hydrogen extinguishing agent and waterproof mixture, keep warm until the preservative, high temperature stabilizer, hydrogen extinguishing agent and waterproof mixture are completely dissolved, and cool naturally to obtain the electrolyte solution for chip high-voltage aluminum electrolytic capacitors;

[0062] Wherein, the mass percentages of main solvent, auxiliary solvent, solute, preservative, high temperature stabilizer, hydrogen suppressant and water-repellent mixture are shown in Table 1 below.

[0063] The main solvent is ethanol, the auxiliary solvent is N,N-dimethylformamide and glycerol with a mass ratio of 6:10...

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Abstract

The invention relates to a chip type high-voltage aluminum electrolytic capacitor, an electrolyte thereof and a preparation method of the electrolyte. The electrolyte comprises the following components of 38.5-77.2% of a main solvent, 10-20% of an auxiliary solvent, 5-25% of a solute, 2.5-5% of an antiseptic, 5-10% of a high-temperature stabilizing agent, 0.2-1% of a hydrogen removal agent and 0.1-0.5% of a hydration-proof agent by weight. The solute is at least one selected from ammonium 2-n-hexyl adipate, ammonium octaned icarboxylate acid, butly octanedioic acid, ammonium 2-n-hexyl adipate oxalate, ammonium sebacate, sebacic acid, ammonium hydrogen azelate, ammonium azelate and ammonium pentaborate. The high-temperature stabilizing agent is at least one selected from polyvinyl alcohol, polyvinyl acetaldehyde, polyvinylpyrrolidone, polyvinyl alcohol succinate and sulfanilic acid. The high temperature resistance is high.

Description

technical field [0001] The invention relates to the technical field of high-voltage aluminum electrolytic capacitors, in particular to an electrolyte for chip-type high-voltage aluminum electrolytic capacitors suitable for high-density automatic surface mounting, a preparation method thereof, and a chip-type high-voltage aluminum electrolytic capacitor. Background technique [0002] For the electronics manufacturing industry, surface mount technology (SMT) is currently the most popular technology and process in the electronics assembly industry, and components are the foundation and driving force of SMT. In the current domestic and foreign markets, aluminum electrolytic capacitors that can be surface mounted are generally low-voltage products, generally below 100V. For chip-type high-voltage aluminum electrolytic capacitors above 160V, especially 160V-400V chip-type high-voltage aluminum electrolytic capacitors, there are not many chip-type high-voltage aluminum electrolytic...

Claims

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Application Information

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IPC IPC(8): H01G9/035H01G9/145
Inventor 张业华赵勇刚赖小军
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG
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