A solid electrolyte aluminum electrolytic capacitor and its manufacturing method

A technology of aluminum electrolytic capacitors and solid electrolytes, applied in the direction of solid electrolytic capacitors, electrolytic capacitors, capacitors, etc., can solve the problem of low series equivalent resistance, achieve the effect of small series equivalent resistance, improve conductivity, and reduce resistance

Active Publication Date: 2017-08-15
ZHAOQING BERYL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two kinds of solid electrolyte aluminum electrolytic capacitors can obtain better performance characteristics, especially the series equivalent resistance is relatively low, which can meet the requirements of modern electronic products, but in the case of extremely low series equivalent resistance, the current technology The products made cannot fully meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A solid electrolyte aluminum electrolytic capacitor, comprising an aluminum shell and a core package arranged in the aluminum shell, the core package is connected to the positive and negative terminals, and the outer surface of the positive and negative terminals is plated with a silver-plated layer; the core The outside of the bag is provided with a rubber cover or a rubber stopper. The core pack includes anodized aluminum foil, cathode foil, electrolytic paper between the anodized aluminum foil and cathode foil, and a solid electrolyte. Then impregnated with oxidant and heated for polymerization.

[0042]The specification of the solid electrolyte aluminum electrolytic capacitor is 6.3V 680μF, and the production quantity is 4500 pieces; the monomer used is 3,4-diethylenedioxythiophene, the conductive carbon material is graphene with an average size of 100nm, and the oxidant is p-toluene Iron sulfonate; the conductive carbon material and the monomer are formulated into...

Embodiment 2

[0057] A solid electrolyte aluminum electrolytic capacitor, comprising an aluminum shell and a core package arranged in the aluminum shell, the core package is connected to the positive and negative terminals, and the outer surface of the positive and negative terminals is plated with a silver-plated layer; the core The outside of the bag is provided with a rubber cover or a rubber stopper. The core package includes anodized aluminum foil, cathode foil, electrolytic paper between the anodized aluminum foil and cathode foil, and a solid electrolyte. The solid electrolyte is impregnated with a conductive carbon material dispersion and then impregnated with a monomer. Then impregnated with oxidant and heated for polymerization.

[0058] The specification of the solid electrolyte aluminum electrolytic capacitor is 6.3V 680μF, and the production quantity is 4500; Be ferric p-toluenesulfonate; The steps of its concrete manufacturing method are as follows:

[0059] (1) Anodized alu...

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Abstract

The invention discloses a solid electrolyte aluminum electrolytic capacitor, which comprises an aluminum shell and a core pack arranged in the aluminum shell, and the core pack includes an anodized aluminum foil, a cathode foil, and an anodized aluminum foil and a cathode foil. The electrolytic paper and the solid electrolyte are formed by thermal polymerization of monomers, oxidants and conductive carbon materials. Introducing composite carbon materials with higher conductivity into polymers can obtain excellent ESR of solid electrolyte aluminum electrolytic capacitors. The invention also discloses a manufacturing method of the solid electrolyte aluminum electrolytic capacitor. This kind of manufacturing method can obtain lower ESR value.

Description

technical field [0001] The invention relates to the technical field of preparation of electrolytic capacitors, in particular to a solid electrolyte aluminum electrolytic capacitor and a manufacturing method thereof. Background technique [0002] Among all kinds of chip electronic components, aluminum electrolytic capacitor chip is the most difficult, but also has the highest technical content. Moreover, aluminum electrolytic capacitors have the advantages of large capacitance, small size, and low price. However, because the traditional liquid aluminum electrolytic capacitor uses the working electrolyte as the cathode, it is easy to dry up and leak, so the reliability is low, the working life is short, and it is not easy to realize the chip type. At the same time, the impedance frequency characteristic is poor, which cannot meet the needs of modern electronic systems. Surface assembly of electronic components, high-speed digital circuits and high-frequency switching power su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/025H01G9/15H01G9/00
Inventor 刘泳澎马彦斌袁永罗伟郑萍廖琼李慧峰吴棣荣伍伟桥
Owner ZHAOQING BERYL ELECTRONICS TECH
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