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Production technology of patch-type aluminum electrolytic capacitor

A technology of aluminum electrolytic capacitors and chip type, which is applied in electrolytic capacitors, electrolytic capacitor manufacturing, capacitors, etc., can solve the problems of unstable performance and rising defect rate of capacitor characteristics, and achieve the effect of high withstand voltage value

Active Publication Date: 2016-07-20
ELCON ELECTRONICS TECH SHAOGUAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of "nailing, winding, chemical formation, impregnation, polymerization, assembly, aging, sorting, printing, flattening of leads, forming and cutting of bases" is often adopted in production, and the process of flattening leads has great impact on the capacitor body. The damage to the structure is the most serious. The damage to the internal structure will lead to an increase in the defect rate of capacitor characteristics and unstable performance. Especially for solid-state chip aluminum electrolytic capacitors, the defect rate is as high as 30%-50%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The production method of solid chip type aluminum electrolytic capacitor is characterized in that, its steps are as follows in sequence:

[0017] Nailing, coiling, forming, lead wire making and flattening, forming and cutting, impregnation, polymerization, assembly, aging, sorting, printing.

[0018] The solid patch type aluminum electrolytic capacitor uses an improved electrochemical polymerization liquid to perform electrochemical polymerization to produce polypyrrole;

[0019] The improved electrochemical polymerization liquid formula is:

[0020] 0.1mol / L p-toluenesulfonic acid, 0.2mol / L pyrrole monomer electrochemical polymerization solution, 1.3g / L trehalose, 0.8g / L malic acid, 0.9g / L citric acid, 0.2g / L sorbic acid sugar acid.

[0021] The above improved electrochemical polymerization solution is subjected to conventional electrochemical polymerization, and the performance of the capacitor electrolyte with greatly improved performance can be obtained, including...

Embodiment 2

[0023] The production method of solid chip type aluminum electrolytic capacitor is characterized in that, its steps are as follows in sequence:

[0024] Nailing, coiling, forming, lead wire making and flattening, forming and cutting, impregnation, polymerization, assembly, aging, sorting, printing.

[0025] The solid patch type aluminum electrolytic capacitor uses an improved electrochemical polymerization liquid to perform electrochemical polymerization to produce polypyrrole;

[0026] The improved electrochemical polymerization liquid formula is:

[0027] 0.1mol / L p-toluenesulfonic acid, 0.2mol / L pyrrole monomer electrochemical polymerization solution, 1.5g / L trehalose, 2.0g / L malic acid, 0.9g / L citric acid, 0.2g / L sorbic acid sugar acid.

[0028] The above improved electrochemical polymerization solution is subjected to conventional electrochemical polymerization, and the performance of the capacitor electrolyte with greatly improved performance can be obtained, including...

Embodiment 3

[0030] The production method of solid chip type aluminum electrolytic capacitor is characterized in that, its steps are as follows in sequence:

[0031] Nailing, coiling, forming, lead wire making and flattening, forming and cutting, impregnation, polymerization, assembly, aging, sorting, printing.

[0032] The solid patch type aluminum electrolytic capacitor uses an improved electrochemical polymerization liquid to perform electrochemical polymerization to produce polypyrrole;

[0033] The improved electrochemical polymerization liquid formula is:

[0034] 0.1mol / L p-toluenesulfonic acid, 0.2mol / L pyrrole monomer electrochemical polymerization solution, 1.4g / L trehalose, 1.2g / L malic acid, 0.8g / L citric acid, 0.2g / L sorbic acid sugar acid.

[0035] The above improved electrochemical polymerization solution is subjected to conventional electrochemical polymerization, and the performance of the capacitor electrolyte with greatly improved performance can be obtained, including...

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PUM

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Abstract

The invention discloses a production technology of a solid patch-type aluminum electrolytic capacitor. On one hand, the technological process is improved, lead beating of the solid patch-type aluminum electrolytic capacitor is finished before impregnation, the reject ratio of electric leakage and a short circuit of the patch-type aluminum electrolytic capacitor is obviously reduced and the yield can reach over 99%; and on the other hand, the properties, including high static capacity, low Res and a high withstand voltage value of the solid patch-type aluminum electrolytic capacitor are greatly improved by improving an electrochemical polymer liquid of a pyrrole monomer.

Description

technical field [0001] The invention belongs to the field of chip capacitors, and more specifically relates to a production process of a solid chip aluminum electrolytic capacitor. Background technique [0002] Aluminum electrolytic capacitors are divided into liquid aluminum electrolytic capacitors and solid aluminum electrolytic capacitors. Liquid aluminum electrolytic capacitors conduct ion conduction through liquid ionization. It is greatly affected by temperature. The internal impedance of the product is large. Liquid aluminum electrolytic capacitors are divided into lead type and chip type. Solid aluminum electrolytic capacitors conduct electricity through polymer materials. The internal resistance of the product is small and less affected by temperature. The solid aluminum electrolytic capacitors are currently mainly lead type. Chip-type solid aluminum electrolytic capacitors have a yield of about 50%-70% due to production process problems. [0003] With the hi...

Claims

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Application Information

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IPC IPC(8): H01G9/00H01G13/00
CPCH01G9/0029H01G13/006
Inventor 不公告发明人
Owner ELCON ELECTRONICS TECH SHAOGUAN CO LTD