Manufacturing method of electrode foil for high voltage aluminum electrolytic capacitor
A technology for aluminum electrolytic capacitors and manufacturing methods, which is applied to electrolytic capacitors, capacitors, circuits, etc., can solve problems such as low production efficiency and poor storage performance, and achieve the effects of high production efficiency, improved density, and improved manufacturing efficiency
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Embodiment 1
[0010] Example 1, first immerse the corroded foil in pure water at 95°C for 10 minutes, then take it out and place it in an aqueous solution of 0.1% adipic acid and 0.1% adipic acid salt, and then at 75°C with a current density of 20mA / cm 2 , Under the condition of a voltage of 160V, carry out the primary formation for 10 minutes; take out the corroded foil after the primary formation, and then place it in an aqueous solution of 0.1% adipic acid and 0.1% adipic acid salt, and then heat it at 75°C , the current density is 20mA / cm 2 , under the condition of 320V voltage, carry out the secondary formation for 10 minutes; take out the corroded foil after the secondary formation, rinse it with water, put it in the aqueous solution of 0.1% azelaic acid and 0.1% azelaic acid salt, and then put it in 75 ℃, the current density is 20mA / cm 2 , Under the condition of a voltage of 460V, the tertiary formation was carried out for 10 minutes; the corroded foil after the tertiary formation...
Embodiment 2
[0011] Example 2, first immerse the corroded foil in pure water at 98°C for 5 minutes, then take it out and place it in an aqueous solution of 5% adipic acid and 5% adipic acid salt, and then at 90°C with a current density of 20mA / cm 2 , Under the condition of a voltage of 160V, carry out the primary formation for 8 minutes; take out the corroded foil after the primary formation, and then place it in an aqueous solution of 5% adipic acid and 5% adipic acid salt, and then heat it at 90°C , the current density is 20mA / cm 2 1. Under the condition of 320V voltage, carry out secondary formation for 8 minutes; take out the corroded foil after secondary formation, rinse it with water, put it in an aqueous solution of 2% azelaic acid and 2% azelaic acid salt, and then put it in 90 ℃, the current density is 20mA / cm 2 , Under the condition of a voltage of 460V, the three-stage formation was carried out for 8 minutes; the corroded foil after the three-stage formation was placed in an ...
Embodiment 3
[0012] Example 3, first immerse the corroded foil in pure water at 90°C for 10 minutes, then take it out and place it in an aqueous solution of 4% adipic acid and 4% adipic acid salt, and then heat it at 85°C with a current density of 20mA / cm 2 , Under the condition of a voltage of 160V, carry out primary formation for 10 minutes; take out the corroded foil after primary formation, and then place it in an aqueous solution of 4% adipic acid and 4% adipic acid salt, and then heat it at 85°C , the current density is 20mA / cm 2 , under the condition of 320V voltage, carry out the secondary formation for 10 minutes; take out the corroded foil after the secondary formation, rinse it with water, put it in the aqueous solution of 2% azelaic acid and 1% azelaic acid salt, and then put it in 85 ℃, the current density is 20mA / cm 2 , Under the condition of a voltage of 460V, the tertiary formation was carried out for 10 minutes; the corroded foil after the tertiary formation was placed ...
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