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Anode foil formation technology

A technology of anode foil and process, which is applied in the field of anode foil formation process, can solve the problems of not being able to obtain high specific volume anode foil, and achieve the effects of high-strength bending times, simple process, and easy process

Active Publication Date: 2019-08-20
ZHEJIANG FENGCHUAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current anode foil formation process still has the following problems: it is impossible to obtain an anode foil with high specific volume and high strength (high bending times)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A process for forming an anode foil, comprising the following steps:

[0041] A. Pre-processing:

[0042] Put the aluminum foil into a container filled with deionized water and boil for 3-5 minutes;

[0043] B. Formation:

[0044] b1. Putting the pretreated aluminum foil into an aqueous solution containing ammonia, borax and ammonium pentaborate for primary formation;

[0045] b2, then move into the aqueous solution that contains adipic acid and ammonium adipate and carry out secondary formation;

[0046] b3, then move into the aqueous solution containing azelaic acid and ammonium azelate and carry out tertiary conversion;

[0047] B4, then move into the aqueous solution that contains boric acid and ammonium pentaborate and carry out quaternary chemical conversion;

[0048] b5, then move into the aqueous solution containing phosphoric acid and carry out five-stage chemical conversion;

[0049] C. Liquid power supply:

[0050] Wash the formed aluminum foil with dei...

Embodiment 2

[0067] A process for forming an anode foil, comprising the following steps:

[0068] A. Pre-processing:

[0069] Put the aluminum foil into a container filled with deionized water and boil for 3 minutes;

[0070] B. Formation:

[0071] b1. Putting the pretreated aluminum foil into an aqueous solution containing ammonia, borax and ammonium pentaborate for primary formation;

[0072] b2, then move into the aqueous solution that contains adipic acid and ammonium adipate and carry out secondary formation;

[0073] b3, then move into the aqueous solution containing azelaic acid and ammonium azelate and carry out tertiary conversion;

[0074] B4, then move into the aqueous solution that contains boric acid and ammonium pentaborate and carry out quaternary chemical conversion;

[0075] b5, then move into the aqueous solution containing phosphoric acid and carry out five-stage chemical conversion;

[0076] C. Liquid power supply:

[0077] Wash the formed aluminum foil with deion...

Embodiment 3

[0095] A process for forming an anode foil, comprising the following steps:

[0096] A. Pre-processing:

[0097] Put the aluminum foil into a container filled with deionized water and boil for 5 minutes;

[0098] B. Formation:

[0099] b1. Putting the pretreated aluminum foil into an aqueous solution containing ammonia, borax and ammonium pentaborate for primary formation;

[0100] b2, then move into the aqueous solution that contains adipic acid and ammonium adipate and carry out secondary formation;

[0101] b3, then move into the aqueous solution containing azelaic acid and ammonium azelate and carry out tertiary conversion;

[0102] B4, then move into the aqueous solution that contains boric acid and ammonium pentaborate and carry out quaternary chemical conversion;

[0103] b5, then move into the aqueous solution containing phosphoric acid and carry out five-stage chemical conversion;

[0104] C. Liquid power supply:

[0105] Wash the formed aluminum foil with deion...

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Abstract

The invention discloses an anode foil formation technology. The anode foil formation technology comprises the following steps that A, pretreatment is conducted, aluminum foil is arranged in a container containing deionized water, and boiling is conducted; B, formation is conducted, wherein b1, the pretreated aluminum foil is placed in a water solution containing ammonium hydroxide, borax and ammonium pentaborate for first-level formation, b2, the aluminum foil is transferred into a water solution containing adipic acid and ammonium adipate for second-level formation, b3, the aluminum foil is transferred into a water solution containing azelaic acid and ammonium azelate for third-level formation, b4, then the aluminum foil is transferred into a water solution containing boric acid and ammonium pentaborate for fourth-level formation, and b5, the aluminum foil is transferred into a water solution containing phosphoric acid for fifth-level formation; C, liquid power supply is conducted, aluminum foil obtained after formation is cleaned through the deionized water, the aluminum foil is placed in a water solution containing benzenesulfonic acid and citric acid, and liquid power supply isconducted; D, aftertreatment is conducted; and E, drying is conducted. The anode foil formation technology is simple, and the prepared formation anode foil has the performance of high specific volumeand high strength.

Description

technical field [0001] The invention relates to the technical field of anode foil production for aluminum electrolytic capacitors, in particular to an anode foil forming process. Background technique [0002] Due to the simple manufacture, low price, superior performance and reliable quality, aluminum electrolytic capacitors have been widely used in electrical products. Moreover, with the rapid development of electrical and electrical industries, the production scale and market demand of aluminum electrolytic capacitors are still growing. In order to adapt to the development trend of miniaturization and high performance of electronic products, it is necessary to develop capacitors with high specific capacitance. [0003] Anodized aluminum foil is the main material for the production of aluminum electrolytic capacitors, and its quality directly affects the performance of the capacitor. In recent years, with the rapid development of aluminum electrolytic capacitor production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/12C25D11/16C25D11/20C25D11/24C25D7/06H01G9/045
CPCC25D7/0614C25D11/12C25D11/16C25D11/20C25D11/24H01G9/045
Inventor 曹春华樊建春张明王隽毅王磊
Owner ZHEJIANG FENGCHUAN ELECTRONICS TECH
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