WO2023056725A1 - Procédé de préparation d'une feuille d'aluminium corrodée présentant une régularité élevée de longueur de trou - Google Patents
Procédé de préparation d'une feuille d'aluminium corrodée présentant une régularité élevée de longueur de trou Download PDFInfo
- Publication number
- WO2023056725A1 WO2023056725A1 PCT/CN2022/077204 CN2022077204W WO2023056725A1 WO 2023056725 A1 WO2023056725 A1 WO 2023056725A1 CN 2022077204 W CN2022077204 W CN 2022077204W WO 2023056725 A1 WO2023056725 A1 WO 2023056725A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aluminum foil
- corrosion
- corroded
- preparing
- pretreatment liquid
- Prior art date
Links
- 239000011888 foil Substances 0.000 title claims abstract description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007797 corrosion Effects 0.000 claims abstract description 36
- 238000005260 corrosion Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 8
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 7
- 239000008103 glucose Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000011148 porous material Substances 0.000 claims description 19
- 239000000243 solution Substances 0.000 claims description 15
- 238000002203 pretreatment Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- -1 hydrogen ions Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 235000013619 trace mineral Nutrition 0.000 description 4
- 239000011573 trace mineral Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/055—Etched foil electrodes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/20—Acidic compositions for etching aluminium or alloys thereof
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/04—Etching of light metals
Definitions
- trace elements such as Fe, Si, and Cu are generally added in the production of light foils. These trace elements are considered to be the corrosion starting point of a porosity corrosion, which can reduce the energy required for porosity and reduce the difficulty of porosity.
- the amount of trace elements added is extremely low, generally only 0.0002%-0.0005%, and its dispersion on the surface of aluminum foil lacks economical and effective detection means, so the method of adding trace elements cannot effectively increase the surface pores.
- the effect of distribution uniformity and pore length uniformity, and the distribution of corrosion initiation points is not easy to control. Therefore, in the actual production process, there are still holes in the order, uneven distribution of surface holes, poor hole length consistency of tunnel holes, and many short holes. The problem.
- the invention discloses a method for manufacturing corroded aluminum foil. During the pretreatment process, a short period of constant voltage and high current is used to form neat corrosion pits on the surface of corroded aluminum foil, which can provide a corrosion starting point for subsequent corroded pores and improve the corrosion resistance of corroded foils. And the consistency of the hole length of the final corroded foil, thereby improving the capacity and bending performance of the finished corroded foil.
- Fig. 1 is a cross-sectional view of an etched aluminum foil prepared by using the method for preparing an etched aluminum foil in an embodiment of the present invention.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Power Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- ing And Chemical Polishing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Weting (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
La présente invention concerne le domaine technique de la fabrication de feuille corrodée. Est divulgué un procédé de préparation d'une feuille d'aluminium corrodée présentant une régularité élevée de longueur de trou, comprenant les étapes suivantes consistant : a) à placer une feuille d'aluminium dans un nouveau liquide de prétraitement et à appliquer un courant continu important de courte durée pour que le prétraitement génère des points de départ de corrosion ; b) à réaliser une corrosion par formation de trous dans un liquide corrosif primaire ; c) à réaliser une corrosion par expansion de trous dans un liquide corrosif secondaire ; et d) à réaliser un traitement thermique pour obtenir une feuille d'aluminium corrodée. Le nouveau liquide de prétraitement est principalement une solution aqueuse mixte à base d'acide mixte et de glucose, la répartition des points de départ de corrosion est facile à appréhender, et pendant une opération de prétraitement, on commande les points de départ de corrosion par la régulation de la concentration et de la température correspondantes du nouveau liquide de prétraitement. Les trous sur la surface de la feuille d'aluminium corrodée préparés par le procédé sont répartis de manière plus uniforme, et la régularité de la longueur du trou est élevée, ce qui permet d'améliorer efficacement les propriétés électriques et de flexion de la feuille d'aluminium corrodée.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022543065A JP7437514B2 (ja) | 2021-10-09 | 2022-02-22 | 孔長の一貫性の高いエッチングアルミニウム箔の製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111177085.7 | 2021-10-09 | ||
| CN202111177085.7A CN113628888B (zh) | 2021-10-09 | 2021-10-09 | 一种孔长高一致性的腐蚀铝箔的制备方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023056725A1 true WO2023056725A1 (fr) | 2023-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/077204 WO2023056725A1 (fr) | 2021-10-09 | 2022-02-22 | Procédé de préparation d'une feuille d'aluminium corrodée présentant une régularité élevée de longueur de trou |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7437514B2 (fr) |
| CN (1) | CN113628888B (fr) |
| TW (1) | TWI816501B (fr) |
| WO (1) | WO2023056725A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628888B (zh) * | 2021-10-09 | 2021-12-10 | 南通海星电子股份有限公司 | 一种孔长高一致性的腐蚀铝箔的制备方法 |
| CN114059145B (zh) * | 2021-11-10 | 2023-05-26 | 乳源瑶族自治县东阳光化成箔有限公司 | 一种低压腐蚀箔及其制备方法和应用 |
| CN114864288B (zh) * | 2022-05-17 | 2024-06-21 | 富之庆电子（深圳）有限公司 | 一种高压固态电容的制备方法及制备装置 |
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| US20140141622A1 (en) * | 2012-11-21 | 2014-05-22 | Dynaloy, Llc | Process for etching metals |
| CN104593848A (zh) * | 2014-12-27 | 2015-05-06 | 西安交通大学 | 一种提高腐蚀铝箔比容的表面改性方法 |
| CN105140039A (zh) * | 2015-09-07 | 2015-12-09 | 江苏国瑞科技股份有限公司 | 一种铝箔腐蚀的前处理工艺 |
| CN108330475A (zh) * | 2017-12-29 | 2018-07-27 | 张凯 | 一种高抗腐蚀船用铝合金表面金属-有机骨架膜处理液及其使用方法 |
| CN110783108A (zh) * | 2019-10-18 | 2020-02-11 | 佛山科学技术学院 | 一种腐蚀箔的制作方法 |
| CN113628888A (zh) * | 2021-10-09 | 2021-11-09 | 南通海星电子股份有限公司 | 一种孔长高一致性的腐蚀铝箔的制备方法 |
Family Cites Families (9)
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| CN101142333B (zh) * | 2005-03-17 | 2013-03-27 | 昭和电工株式会社 | 电解电容器电极用铝材及其制造方法、电解电容器用电极材料、铝电解电容器用阳极材料、电解电容器用阳极材料的制造方法及铝电解电容器 |
| JP4762791B2 (ja) | 2006-05-31 | 2011-08-31 | ニチコン株式会社 | 電解コンデンサ用電極箔の製造方法 |
| JP2009231517A (ja) | 2008-03-22 | 2009-10-08 | Nichicon Corp | 電解コンデンサ用エッチング箔の製造方法 |
| CN107502948A (zh) * | 2017-07-15 | 2017-12-22 | 江苏国瑞科技有限公司 | 一种新型腐蚀箔扩孔技术 |
| KR20190011484A (ko) * | 2017-07-25 | 2019-02-07 | 삼성전자주식회사 | 아노다이징이 가능한 알루미늄 합금 판재와 그 제조방법 |
| CN108183033B (zh) * | 2018-03-02 | 2020-07-07 | 东莞东阳光科研发有限公司 | 一种铝电解电容器用阳极箔腐蚀工艺 |
| CN109750346A (zh) * | 2018-12-17 | 2019-05-14 | 中南大学 | 一种中高压腐蚀箔的制作工艺 |
| CN110055571B (zh) | 2019-04-18 | 2020-05-22 | 宜都东阳光化成箔有限公司 | 一种提高铝电解电容器用中高压化成箔容量的预处理溶液及化成工艺 |
| CN111430726B (zh) * | 2020-06-10 | 2020-09-11 | 河南绿动能源科技有限公司 | 一种锂离子电池用铝集流体的制备方法及铝集流体 |
-
2021
- 2021-10-09 CN CN202111177085.7A patent/CN113628888B/zh active Active
-
2022
- 2022-02-22 WO PCT/CN2022/077204 patent/WO2023056725A1/fr active Application Filing
- 2022-02-22 JP JP2022543065A patent/JP7437514B2/ja active Active
- 2022-08-03 TW TW111129238A patent/TWI816501B/zh active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140141622A1 (en) * | 2012-11-21 | 2014-05-22 | Dynaloy, Llc | Process for etching metals |
| CN104593848A (zh) * | 2014-12-27 | 2015-05-06 | 西安交通大学 | 一种提高腐蚀铝箔比容的表面改性方法 |
| CN105140039A (zh) * | 2015-09-07 | 2015-12-09 | 江苏国瑞科技股份有限公司 | 一种铝箔腐蚀的前处理工艺 |
| CN108330475A (zh) * | 2017-12-29 | 2018-07-27 | 张凯 | 一种高抗腐蚀船用铝合金表面金属-有机骨架膜处理液及其使用方法 |
| CN110783108A (zh) * | 2019-10-18 | 2020-02-11 | 佛山科学技术学院 | 一种腐蚀箔的制作方法 |
| CN113628888A (zh) * | 2021-10-09 | 2021-11-09 | 南通海星电子股份有限公司 | 一种孔长高一致性的腐蚀铝箔的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI816501B (zh) | 2023-09-21 |
| JP7437514B2 (ja) | 2024-02-22 |
| TW202315975A (zh) | 2023-04-16 |
| CN113628888A (zh) | 2021-11-09 |
| JP2023548990A (ja) | 2023-11-22 |
| CN113628888B (zh) | 2021-12-10 |
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