CN110120302B - 1XXX series aluminum foil and application thereof - Google Patents
1XXX series aluminum foil and application thereof Download PDFInfo
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- CN110120302B CN110120302B CN201910267961.1A CN201910267961A CN110120302B CN 110120302 B CN110120302 B CN 110120302B CN 201910267961 A CN201910267961 A CN 201910267961A CN 110120302 B CN110120302 B CN 110120302B
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- aluminum foil
- 1xxx
- series aluminum
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- aluminum
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 160
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 239000011888 foil Substances 0.000 title claims abstract description 126
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 5
- 239000011573 trace mineral Substances 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 32
- 239000012535 impurity Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 150000002739 metals Chemical class 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000006056 electrooxidation reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- 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
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/045—Electrodes or formation of dielectric layers thereon characterised by the material based on aluminium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention provides a 1XXX series aluminum foil and application thereof. The 1XXX aluminum foil comprises, by mass, not less than 99.85% of Al, not more than 350ppm of Si, not more than 400ppm of Fe, not more than 100ppm of Cu, not more than 200ppm of Mg, not more than 200ppm of Zn, not more than 50ppm of Mn and not more than 150ppm of other trace elements. The aluminum content of the 1XXX aluminum foil is more than or equal to 99.85 percent, various impurity metals are far lower than that of the existing 1XXX aluminum foil, and the 1XXX aluminum foil has the effects of high specific volume and low leakage current; the thickness of the 1XXX series aluminum foil is 0.02-0.06 mm, the tensile strength is 55-100 MPa when the product state is 0 or H22, the tensile strength is not less than 170MPa when the product state is H18, and the tensile strength is 110-150 MPa when the product state is H24.
Description
Technical Field
The invention relates to the technical field of non-ferrous metal treatment products, in particular to a 1XXX series aluminum foil and application thereof.
Background
Cathode electronic aluminum foil is one of the important raw materials for manufacturing aluminum electrolytic capacitors. Common materials currently used for preparing cathode electronic aluminum foils are 1XXX series aluminum alloys, 2XXX series aluminum alloys, and 3XXX series aluminum alloys. At present, the content of aluminum in the 1XXX aluminum alloy material is usually 98.0-99.7%, the content of impurities is high, and the content of impurities in the 1XXX aluminum alloy not only can influence the performance of an aluminum foil, cause component segregation, but also can influence the rolling and other production processes of a cathode foil of an aluminum electrolytic capacitor in the later period. The prior art CN105908021A discloses a cathode foil for capacitor and its manufacture, wherein the aluminum content in the disclosed cathode foil can not reach more than 99.85%, wherein the content of Cu is still about 0.2%, the content of Fe is about 0.25%, the segregation phenomenon of impurity elements is limited, the improvement effect of mechanical property and rolling resistance is not expected, the improvement of specific volume is mainly the control of annealing process and the use of refining agent, wherein the improvement of the alloy property of 1XXX aluminum foil still has a large space.
Therefore, the 1XXX series aluminum foil with better mechanical property and lower impurity content provided by the invention has very important significance for further optimizing the service performance of the 1XXX series aluminum foil and achieving better application effect.
Disclosure of Invention
The invention aims to solve the technical problems that the existing 1XXX series aluminum foil has high impurity content and mechanical property and rolling resistance cannot meet the requirements and the defects are overcome, and provides the 1XXX series aluminum foil.
Another object of the present invention is to provide a use of 1XXX series aluminum foil in aluminum foil for aluminum electrolytic capacitors, aluminum foil for current collectors and aluminum foil for super capacitors.
The above purpose of the invention is realized by the following technical scheme:
a XXX series aluminum foil comprises the following components in parts by mass: more than or equal to 99.90 percent of Al, less than or equal to 350ppm of Si, less than or equal to 400ppm of Fe, less than or equal to 100ppm of Cu, less than or equal to 200ppm of Mg, less than or equal to 200ppm of Zn, less than or equal to 50ppm of Mn, and less than or equal to 150ppm of other trace elements.
The aluminum content of the existing 1XXX aluminum foil is two, one is that the aluminum content is more than or equal to 99.70 percent and is generally marked as 1070 alloy, and the product is used for the cathode foil of the chemically corroded aluminum electrolytic capacitor; the other is aluminum electrolytic capacitor cathode foil with Al more than or equal to 99.85 percent and used for electrochemical corrosion. The 1XXX aluminum foil can well meet the mechanical property of electrochemical corrosion 1XXX aluminum foil, the tensile strength is more than or equal to 170MPa when the product state is H18, the tensile strength is 110-150 MPa when the product state is H24, the further requirements of the aluminum content and other metal content are closely related to the subsequent process of the aluminum foil, the specific volume of the aluminum foil can reach 100.2-103.5 percent of the specific volume of a common hot rolling material when the aluminum foil is used as the cathode foil of an aluminum electrolytic capacitor, the higher the purity of the aluminum content is, the better the leakage rate, the resistance and the like of the prepared aluminum foil are improved, and the aluminum foil is suitable for the aluminum foil for a high-end super capacitor and the aluminum foil for a current collector.
The effects of other metal products are: the product is resistant to corrosion in electrochemical corrosion due to the excessively high content of the Si element, and the specific volume of the aluminum foil after the client is corroded is low;
fe. If the contents of Zn and Mg are too high, the product is easy to corrode, and the strength of the aluminum foil after corrosion of the client is insufficient and the aluminum foil is over-dissolved;
too high contents of Cu and Mn can result in a product with a low specific volume after client corrosion. The high Mn content can cause high product resistance and large heat productivity when used as a current collector;
preferably, the 1XXX series aluminum foil comprises the following components in percentage by mass: more than or equal to 99.91 percent of Al, 50-300 ppm of Si, 50-350 ppm of Fe, 10-50 ppm of Cu, 10-150 ppm of Mg, 10-180 ppm of Zn, less than or equal to 40ppm of Mn, and less than or equal to 100ppm of other trace elements.
More preferably, the 1XXX series aluminum foil comprises the following components in percentage by mass: more than or equal to 99.91 percent of Al, 130-204 ppm of Si, 265-328 ppm of Fe, 26-39 ppm of Cu, 100-183 ppm of Mg, 100-115 ppm of Zn, 10-30 ppm of Mn and less than or equal to 100ppm of other trace elements.
Among them, for example, 189ppm of Si, 286ppm of Fe, 39ppm of Cu, 30ppm of Mn, 100ppm of Mg, 98ppm of Zn, and 99.9184% of Al;
for example, it may be 189ppm of Si, 286ppm of Fe, 39ppm of Cu, 24ppm of Mn, 100ppm of Mg, 98ppm of Zn, and 99.9184% of Al;
for example, it may be 204ppm of Si, 328ppm of Fe, 38ppm of Cu, 23ppm of Mn, 183ppm of Mg, 103ppm of Zn, and 99.9120% of Al;
for example, it may be Si 130ppm, Fe 278ppm, Cu 26ppm, Mn10 ppm, Mg 115ppm, Zn 155ppm, Al 99.9171%;
for example, it may be 189ppm of Si, 286ppm of Fe, 39ppm of Cu, 24ppm of Mn, 100ppm of Mg, 98ppm of Zn, and 99.9184% of Al;
for example, it may be Si 188ppm, Fe 265ppm, Cu 37ppm, Mn10 ppm, Mg 115ppm, Zn90ppm, Al 99.9188%.
Preferably, the thickness of the 1XXX series aluminum foil is 0.02-0.06 mm. The thickness of the 1XXX aluminum foil affects the specific volume of the product assembled into the aluminum electrolytic capacitor after corrosion, the thinner the thickness, the lower the specific volume per unit area, but the longer the foil for the aluminum electrolytic capacitor with the thinner thickness, the inventor selects the thickness of the 1XXX aluminum foil of the invention to be 0.02-0.06 mm according to the comprehensive consideration of the influence of various aspects.
Preferably, the thickness of the 1XXX series aluminum foil is 0.04-0.06 mm, the product state is 0 state or H22, and the tensile strength is 55-100 MPa.
It should be noted that: the product state is an O state, which means a state that the product is completely annealed.
The H22 state/H24 state refers to a state of the product between the O state and the H18 state.
The H18 state is a hard state, not an annealed state.
The strength of the 1XXX aluminum foil is too low, the strength of the corrosion foil prepared by late corrosion is correspondingly lower, the subsequent processing requirement of the aluminum electrolytic capacitor aluminum foil cannot be met, and the strength of the 1XXX aluminum foil is too high, the dislocation density is large, the electrochemical corrosion is over-dissolved, and the 1XXX aluminum foil for the aluminum electrolytic capacitor meeting the requirement is not prepared.
Preferably, the tensile strength of the 1XXX series aluminum foil is 60-90 MPa.
Preferably, the thickness of the 1XXX series aluminum foil is 0.02-0.04 mm, and the product state is H18 or H24.
Preferably, the 1XXX series aluminum foil has a product state of H18 and a tensile strength of more than or equal to 170 MPa.
Preferably, the 1XXX aluminum foil has a product state of H18 and a tensile strength of 180-230 MPa.
Preferably, the 1XXX aluminum foil has a product state of H24 and a tensile strength of 110 to 150 MPa.
The use of the above 1XXX aluminum foil in aluminum foils for aluminum electrolytic capacitors, aluminum foils for current collectors, and aluminum foils for supercapacitors is also within the scope of the present invention.
Compared with the prior art, the invention has the beneficial effects that:
(1) the aluminum content of the 1XXX aluminum foil is more than or equal to 99.85 percent, various impurity metals are far lower than that of the existing 1XXX aluminum foil, the higher the aluminum content purity is, the better the leakage rate, the resistance and the like of the aluminum foil are improved, and the aluminum foil is suitable for aluminum foils for high-end aluminum electrolytic capacitors, aluminum foils for current collectors and super capacitors;
(2) the thickness of the 1XXX series aluminum foil is only 0.02-0.06 mm;
(3) when the 1XXX series aluminum foil product is in an O state or H22 state, the tensile strength is 55-100 MPa;
(4) the thickness of the 1XXX series aluminum foil is only 0.02-0.04 mm, the tensile strength is not less than 170MPa when the product state is H18, and the tensile strength is 110-150 MPa when the product state is H24.
Detailed Description
The present invention will be further described with reference to specific embodiments, but the present invention is not limited to the examples in any way. The starting reagents employed in the examples of the present invention are, unless otherwise specified, those that are conventionally purchased.
The method for detecting the tensile strength of the cathode foil for the aluminum electrolytic capacitor comprises the following steps: GB/T228 or GB/T16865.
Example 1
A1 XXX series aluminum foil comprises the following components in parts by mass: 189ppm of Si, 286ppm of Fe, 39ppm of Cu, 30ppm of Mn, 100ppm of Mg, 98ppm of Zn and 99.9184 percent of Al.
The thickness of the product is 0.022mm, the product state is H18 state, the strength of the product is 192MPa, the product is used for aluminum electrolytic capacitor aluminum foil, and the product is qualified by A manufacturer; the aluminum foil is used for aluminum foils for current collectors and supercapacitors, and is qualified by F manufacturers.
Example 2
A1 XXX series aluminum foil comprises the following components in parts by mass: 189ppm of Si, 286ppm of Fe, 39ppm of Cu, 30ppm of Mn, 100ppm of Mg, 98ppm of Zn and 99.9184 percent of Al.
The product thickness is 0.05mm, the product state is O state, the product strength obtained by detection is 70MPa, the product is used for aluminum electrolytic capacitor aluminum foil, the specific volume of the product is qualified after trial by a customer B manufacturer, and the specific volume of the product reaches 100.6% of that of the hot rolled material.
Example 3
A1 XXX series aluminum foil comprises the following components in parts by mass: 204ppm of Si, 328ppm of Fe, 38ppm of Cu, 23ppm of Mn, 183ppm of Mg, 103ppm of Zn and 99.9120% of Al.
The thickness of the product is 0.06mm, the product state is H22 state, the strength of the product obtained by detection is 100MPa, the product is used for aluminum electrolytic capacitor aluminum foil, and the specific volume of the product is qualified after trial by a customer F manufacturer.
Example 4
A1 XXX series aluminum foil comprises the following components in parts by mass: 130ppm of Si, 278ppm of Fe, 26ppm of Cu, 10ppm of Mn, 115ppm of Mg, 155ppm of Zn and 99.9171% of Al.
The thickness of the product is 0.03mm, the product state is H24 state, the strength of the product obtained by detection is 115MPa, the product is used for aluminum foils for current collectors and aluminum foils for aluminum electrolytic capacitors, and the product is qualified after trial by a customer D manufacturer.
The thickness of the product is 0.048mm, the product state is H22 state, the strength of the product is 71MPa after detection, and the specific volume of the product is qualified after trial by a customer C manufacturer and reaches 103.5 percent of the specific volume of the hot rolled material.
Example 5
A1 XXX series aluminum foil comprises the following components in parts by mass: 188ppm of Si, 265ppm of Fe, 37ppm of Cu, 10ppm of Mn, 115ppm of Mg, 90ppm of Zn and 99.9188 percent of Al.
The thickness of the product is 0.022mm, the product state is H18 state, and the product strength is 176MPa after detection. The aluminum foil is used for aluminum foil of aluminum electrolytic capacitors, aluminum foil for current collectors and aluminum foil for super capacitors. Qualified by the manufacturer F;
example 6
A1 XXX series aluminum foil comprises the following components in parts by mass: 250ppm of Si, 334ppm of Fe, 26ppm of Cu, 5ppm of Mn, 130ppm of Mg, 180ppm of Zn and 99.8950% of Al.
The thickness of the product is 0.045mm, the product state is O state, and the strength of the product is 65MPa after detection. The aluminum foil is used for aluminum electrolytic capacitor aluminum foil, and the specific volume is qualified after being used by F manufacturers;
example 7
A1 XXX series aluminum foil having the same mass composition as in example 2 was produced in the O state, the thickness of 0.04mm and the tensile strength of 55 MPa. The aluminum foil is used for aluminum electrolytic capacitor aluminum foil and is qualified by F manufacturers;
example 8
A1 XXX series aluminum foil having the same mass composition as in example 2 was produced in a H22 state, a thickness of 0.06mm and a tensile strength of 100 MPa. The aluminum foil is used for aluminum electrolytic capacitor aluminum foil and is qualified by F manufacturers;
example 9
A1 XXX series aluminum foil having the same mass composition as in example 2 was produced in the H22 state, a thickness of 0.04mm and a tensile strength of 60 MPa. The aluminum foil is used for aluminum electrolytic capacitor aluminum foil and is qualified by F manufacturers;
example 10
A1 XXX series aluminum foil having the same mass composition as in example 2 was produced in the H22 state, a thickness of 0.04mm and a tensile strength of 90 MPa. The aluminum foil is used for aluminum electrolytic capacitor aluminum foil and is qualified by F manufacturers;
example 11
A1 XXX series aluminum foil having the same mass composition as in example 2 was produced in the form of H18, a thickness of 0.03mm and a tensile strength of 180 MPa. The aluminum foil is used for aluminum foils of aluminum electrolytic capacitors, current collectors and supercapacitors, and is qualified by F manufacturers;
example 12
A1 XXX series aluminum foil having the same mass composition as in example 2 was produced in a product state of H24, a thickness of 0.03mm and a tensile strength of 150 MPa. Is used for aluminum foil of aluminum electrolytic capacitor and is qualified by D manufacturers
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A1 XXX series aluminum foil for a cathode of an aluminum electrolytic capacitor is characterized in that the 1XXX series aluminum foil comprises the following components by mass: more than or equal to 99.91 percent of Al, 130-204 ppm of Si, 265-328 ppm of Fe, 26-39 ppm of Cu, 100-183 ppm of Mg, 100-115 ppm of Zn, 10-30 ppm of Mn and less than or equal to 100ppm of other trace elements.
2. The 1XXX series aluminum foil as claimed in claim 1, wherein the thickness of the 1XXX series aluminum foil is 0.02 to 0.06 mm.
3. The 1XXX aluminum foil according to claim 2, wherein the 1XXX aluminum foil has a thickness of 0.04 to 0.06mm, a product state of O state or H22, and a tensile strength of 55 to 100 MPa.
4. The 1XXX series aluminum foil as claimed in claim 3, wherein the 1XXX series aluminum foil has a tensile strength of 60 to 90 MPa.
5. The 1XXX series aluminum foil as claimed in claim 2, wherein the 1XXX series aluminum foil has a thickness of 0.02 to 0.04mm and a product state of H18 or H24.
6. The 1XXX series aluminum foil as claimed in claim 5, wherein the 1XXX series aluminum foil has a product state of H18 and a tensile strength of 170MPa or more.
7. The 1XXX series aluminum foil as claimed in claim 6, wherein the 1XXX series aluminum foil has a product state of H18 and a tensile strength of 180 to 230 MPa.
8. The 1XXX series aluminum foil as claimed in claim 5, wherein the 1XXX series aluminum foil has a product state of H24 and a tensile strength of 110 to 150 MPa.
9. Use of the 1 XXX-series aluminum foil of any of claims 1-8 in aluminum foil for aluminum electrolytic capacitor cathodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910267961.1A CN110120302B (en) | 2019-04-03 | 2019-04-03 | 1XXX series aluminum foil and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910267961.1A CN110120302B (en) | 2019-04-03 | 2019-04-03 | 1XXX series aluminum foil and application thereof |
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| CN110120302B true CN110120302B (en) | 2020-11-17 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097538A (en) * | 2000-09-20 | 2002-04-02 | Showa Denko Kk | Aluminum material for electrolytic capacitor electrodes |
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| CN100478475C (en) * | 2003-06-06 | 2009-04-15 | 东北轻合金有限责任公司 | High specific capacitance alloy foil and preparation method thereof |
| CN1975949B (en) * | 2006-11-27 | 2010-12-01 | 乳源东阳光精箔有限公司 | Aluminium foil for electrolytic capacitor low-voltage anode and producing method thereof |
| CN101859648B (en) * | 2009-12-17 | 2012-10-10 | 北京中拓机械有限责任公司 | Aluminium foil for high-voltage electrolytic capacitor anodes and production method |
| CN107492450B (en) * | 2017-08-09 | 2020-01-21 | 乳源东阳光优艾希杰精箔有限公司 | Soft aluminum foil for low-voltage anode of aluminum electrolytic capacitor and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002097538A (en) * | 2000-09-20 | 2002-04-02 | Showa Denko Kk | Aluminum material for electrolytic capacitor electrodes |
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