Electrolytic capacitor manufacturing method and product thereby

A technology for electrolytic capacitors and manufacturing methods, applied in the direction of electrolytic capacitors, solid electrolytic capacitors, capacitors, etc., capable of solving problems such as increased cost of dispersion liquids

Inactive Publication Date: 2016-03-16
LELON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, when the capacitor is soaked in the dispersion liquid by the above-mentioned method, the dispersion liquid must completely permeate the capac

Method used

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  • Electrolytic capacitor manufacturing method and product thereby
  • Electrolytic capacitor manufacturing method and product thereby
  • Electrolytic capacitor manufacturing method and product thereby

Examples

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Embodiment Construction

[0008] The following are examples, but the contents of the present invention are not limited to the scope of these examples.

[0009] Please refer to figure 1 and figure 2 Shown is a flow chart of the steps of the manufacturing method of the electrolytic capacitor of the present invention and a schematic diagram of the production process of the aluminum foil for electrodes. The steps of the capacitor manufacturing method of the present invention include pretreatment, electroerosion, water washing, posttreatment, coating of polymer conductive dispersion, drying and packaging; wherein:

[0010] The pretreatment steps are: passing the aluminum foil 10 through the pretreatment tank 20 and cleaning the aluminum foil 10 with water.

[0011] The steps of electro-etching include: passing the aluminum foil 10 through the electro-etching tank 30 , passing through the corrosive solution and electrifying the aluminum foil 10 to electrolyze, and forming pits on the aluminum foil 10 .

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Abstract

The invention relates to an electrolytic capacitor manufacturing method and a product thereby. The manufacturing method comprises a step of electrolytic corrosion by penetrating through a corrosive liquid, powering on, and electrolyzing an aluminum foil; a coating step of a polymer conductive dispersion liquid by attaching the polymer conductive dispersion liquid to the surface of the aluminum foil; a drying step of the polymer conductive dispersion liquid attached to the surface of the aluminum foil; and a packaging step by winding the aluminum foil into a prime sub-module. In this way, the coating and drying steps of the polymer conductive dispersion liquid enable the polymer conductive dispersion liquid to be uniformly distributed to the surface of the anode and cathode aluminum foil, the coverage rate of a coating area is increased, the effects of reducing the angle of loss, equivalent series resistance and leakage current are achieved, and the capacitance of the capacitor is also improved.

Description

technical field [0001] The invention mainly discloses a manufacturing method of an electrolytic capacitor and its products, especially a manufacturing method of an electrolytic capacitor and its products that are packaged after coating a polymer conductive dispersion liquid on an aluminum foil and drying it. Background technique [0002] Please refer to the "Manufacturing Method of Electrolytic Capacitor and Electrolytic Capacitor" patent case of Taiwan Patent No. I404096, which discloses a manufacturing method of an electrolytic capacitor, which is characterized in that: making a capacitor element with an electrode foil including an anode foil and a cathode foil , and by impregnating the dispersion liquid formed by dispersing the conductive solid particles or their aggregates in the dispersion medium in the aforementioned capacitor, the conductivity of the conductive solid particles or their aggregates is formed in the capacitor element. For the solid layer, the capacitor e...

Claims

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Application Information

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IPC IPC(8): H01G9/045H01G9/15
Inventor 朱俊毓王闵仪江隆昌
Owner LELON ELECTRONICS
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