Processing method of electrode foil used for aluminum electrolytic capacitor

A technology of aluminum electrolytic capacitors and processing methods, applied in electrolytic capacitors, capacitors, circuits, etc., can solve the problems of accelerated chemical dissolution of oxide film, long boosting time, and large leakage current, so as to improve the formation efficiency and shorten the boosting time , The effect of reducing the leakage current
CN108155017AInactive Publication Date: 2018-06-12DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
Publication Date
2018-06-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a processing method of an electrode foil used for an aluminum electrolytic capacitor. The method comprises pre-processing, corrosion, postprocessing and multistage formation. The method is characterized in that in each stage of formation, an asymmetrical intermittent positive and negative combination pulse power up mode is used to carry out formation. Compared with an existing continuous power up formation mode, by using the method of the invention, the quality of a formed foil can be greatly improved, boost time is shortened, a leakage current is reduced and formationefficiency is increased.
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Description

technical field

[0001] The invention relates to a processing method for an electrode foil used in an aluminum electrolytic capacitor, and belongs to the technical field of new energy aluminum capacitors. technical background

[0002] As an indispensable electronic component in the production of electronics industry, aluminum electrolytic capacitor has the characteristics of large demand and wide range of use, and has always occupied a considerable proportion in the entire capacitor industry market. With the rapid development of science and technology and the continuous improvement of market demand, aluminum electrolytic capacitors are more and more widely used in the fields of air conditioner inverters, spot welding machines, charging piles and UPS equipment, so the requirements for product performance are also getting higher and higher. .

[0003] At present, the preparation process of aluminum foil for solid aluminum electrolytic capacitors generally includes: light foil ...

Claims

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