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Method for preparing 100-150V of low-voltage foil

A manufacturing method and technology of forming foil, applied in the direction of electrical components, electrolytic capacitors, capacitors, etc., can solve problems such as electrostatic capacity damage, achieve quality assurance, increase electrostatic capacity, and achieve good quality effects

Inactive Publication Date: 2013-04-24
乳源县立东电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] How to solve the above-mentioned shortcomings of the traditional forming technology of low-voltage forming foil for electrolytic capacitors, and how to solve the damage to the electrostatic capacity formed by the subsequent process of corrosion treatment has always been a technical problem that the industry urgently needs to solve.

Method used

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  • Method for preparing 100-150V of low-voltage foil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] It is the aluminum foil of 80V to make the working voltage according to the method of the present invention, and it is 105V to set the highest forming voltage (forming voltage), specifically as follows:

[0030] 1) Soak the corroded and expanded aluminum foil in the wetting dispersion of alkylphenol polyoxyethylene ether OP-10 with a concentration of 0.1ml / L at 25°C for 2 minutes, and its HLB value is 13.3-14.5;

[0031] 2) The aluminum foil after soaking treatment is subjected to primary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 42V and then kept at constant pressure for 5 minutes;

[0032] 3) The aluminum foil after primary formation is subjected to secondary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 74V and then kept at constant pressure for 5 minutes;

[0033] 4) The aluminum foil after secondary formation was subjected to tertiary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 105V and then ke...

Embodiment 2

[0042] It is the aluminum foil of 100V to manufacture the working voltage according to the method of the present invention, and it is 132V to set the highest forming voltage (forming voltage), specifically as follows:

[0043] 1) Soak the corroded and expanded aluminum foil in the wetting dispersion of nonylphenol polyoxyethylene ether NP-7 with a concentration of 0.1ml / L at 30°C for 3 minutes; its HLB value is 11.7-12;

[0044]2) The aluminum foil after soaking treatment is subjected to primary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 53V and then kept at constant pressure for 8 minutes;

[0045] 3) The aluminum foil after primary formation was subjected to secondary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 93V and then kept at constant pressure for 8 minutes;

[0046] 4) The aluminum foil after secondary formation is subjected to tertiary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 132V and then ke...

Embodiment 3

[0055] According to the method of the present invention, the aluminum foil whose operating voltage is 80V is set to be 115V as the highest forming voltage (forming voltage), specifically as follows:

[0056] 1) Soak the corroded aluminum foil in 0.3ml / L alkylphenol polyoxyethylene ether OP-10 wetting dispersion at 25°C for 2 minutes, and its HLB value is 13.3-14.5;

[0057] 2) The aluminum foil after soaking treatment is subjected to primary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 46V and then kept at constant pressure for 7 minutes;

[0058] 3) The aluminum foil after primary formation is subjected to secondary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 80V and then kept at constant pressure for 7 minutes;

[0059] 4) The aluminum foil after secondary formation is subjected to tertiary formation in 0.4mol / L ammonium adipate solution at 80°C, boosted to 115V and then kept at constant pressure for 10 minutes;

[0060] 5) Cle...

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Abstract

The invention relates to a method for preparing a 100-150V of low-voltage foil. The method comprises the following steps of: performing a soaking treatment step A: soaking an aluminum foil which is subjected to corrosion surface expansion in a wetting dispersion liquid, wherein the wetting dispersion liquid is an aqueous solution of a non-ionic surfactant of which the hydrophile lipophile balance(HLB) value is 11-15; and performing multi-stage treatment on the aluminum foil which is subjected to corrosion surface expansion. Due to the adoption of the method for preparing the low-voltage foil, a stable oxidation film can be produced, subsequent loss caused by the formed specific surface area of the aluminum foil is reduced, and the aim of comprehensively improving the electrostatic capacity and water resistance of the aluminum foil is fulfilled.

Description

technical field [0001] The invention relates to a method for preparing an aluminum foil for a capacitor, and more specifically, the invention relates to a method for manufacturing a low-voltage anode foil for an electrolytic capacitor. Background technique [0002] Aluminum electrolytic capacitors are energy storage components used in circuits for tuning, filtering, coupling, bypassing, energy conversion, and time delay, and thus are widely used in many related industries such as electronic appliances. Now, with the advancement of science and technology and the development of industry, the requirements for the miniaturization and portability of electronic and electrical products are becoming more and more urgent; at the same time, higher and higher requirements are also put forward for the electrical performance of electrolytic capacitors. [0003] The volume of low-voltage aluminum electrolytic capacitors is mainly restricted by the electrostatic capacity of the anode foil ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/055
Inventor 严志强吕根品
Owner 乳源县立东电子科技有限公司