Aluminum Gel Reverse Analysis Method for Improving the Specific Volume of Formed Foil

A technology of aluminum gel reversal and formation into foil, applied in the direction of removing regulations on metal surface, can solve problems such as increasing the surface area of ​​aluminum foil, and achieve the effect of increasing surface area and increasing specific volume

Active Publication Date: 2016-03-30
新疆广投桂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

[0003] The invention provides an aluminum gel reverse analysis method for increasing the specific volume of the formed foil, which can repair the problems of excessive surface corrosion, string holes, and uneven holes caused by over-corrosion in the production process of the aluminum foil, and increase the surface area of ​​the aluminum foil. To achieve the purpose of increasing the specific volume, the specific volume of the formed foil can be increased by 1 to 15% through the aluminum gel reverse analysis method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 215Vf formation, the specific steps are as follows:

[0013] Step 1: Clean the corroded foil with pure water and bake it at a high temperature of 460°C for 10 minutes, take it out, cool it and seal it for later use;

[0014] The second step: the corroded foil treated in the first step at 0.05A / cm 2 Form in the chemical solution for 10 minutes, at this time, the chemical solution is clear and the pH value is between 4 and 5;

[0015] Step 3: Put the corroded foil treated in the first step into the formation solution prepared in the second step according to the conventional three-stage formation method.

[0016] After the above steps of formation, the specific volume of the formed foil increases by 15%.

Embodiment 2

[0018] 335Vf formation, the specific steps are as follows:

[0019] Step 1: Clean the corroded foil with pure water and bake it at a high temperature of 500°C for 20 minutes, take it out, cool and seal it for later use;

[0020] The second step: the corroded foil treated in the first step is 0.08A / cm 2 Form in the chemical solution for 20 minutes, repeat twice, the chemical solution is clear at this time, and the pH value is between 5 and 6;

[0021] Step 3: Put the corroded foil treated in the first step into the formation solution prepared in the second step according to the conventional three-stage formation method.

[0022] After the formation through the above steps, the specific volume of the formed foil increases by 8%.

Embodiment 3

[0024] 520Vf formation, the specific steps are as follows:

[0025] Step 1: Clean the corroded foil with pure water and bake it at a high temperature of 580°C for 30 minutes, take it out, cool it and seal it for later use;

[0026] Step 2: Apply the corroded foil treated in the first step to 0.10A / cm 2 Form in the chemical solution for 30 minutes, and repeat 3 times. At this time, the chemical solution is in a suspension state, and the pH value is between 7 and 8;

[0027] Step 3: Put the corroded foil treated in the first step into the formation solution prepared in the second step according to the conventional three-stage formation method.

[0028] The specific volume of the formed foil increases by 5% after the above steps are formed.

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Abstract

An aluminum gel reverse analysis method for increasing the specific volume of formed foil includes the steps: roasting etched foil at the high temperature of 460-580 DEG C for 10-30min, taking out the foil and repeatedly forming the foil in a forming agent for 1-3 times by 0.05-0.10A / cm<2> for 10-30min to obtain a forming agent containing aluminum gel; and placing the etched foil in the forming agent containing the aluminum gel, forming the foil according to a conventional three-stage forming method and increasing the specific volume of the formed foil by 1-15%.

Description

technical field [0001] The invention belongs to the technical field of electronic material manufacturing, and in particular relates to an aluminum gel reverse analysis method for increasing the specific volume of formed foil. Background technique [0002] High capacity and small volume are the development trend of aluminum electrolytic capacitors today. According to the capacitance formula of parallel plate capacitors, When the electrode spacing and dielectric constant have been determined, the only way to increase the specific volume is to increase the actual surface area of ​​the electrode, and the actual surface area of ​​the electrode is determined by the corrosion pores, but there is still a problem that the corrosion pores are not necessarily It is very uniform, and there is a large part of over-corrosion on the surface of the foil and in the pores, resulting in thinning of the aluminum foil, deformed pores and even some string holes, which limit the increase in speci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G13/06
Inventor 宋洪洲陆宝琳隆忠良黄胜权
Owner 新疆广投桂东电子科技有限公司
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