JPS57131399A - Manufacture of aluminum alloy foil for electrode of electrolytic capacitor - Google Patents
Manufacture of aluminum alloy foil for electrode of electrolytic capacitorInfo
- Publication number
- JPS57131399A JPS57131399A JP1466281A JP1466281A JPS57131399A JP S57131399 A JPS57131399 A JP S57131399A JP 1466281 A JP1466281 A JP 1466281A JP 1466281 A JP1466281 A JP 1466281A JP S57131399 A JPS57131399 A JP S57131399A
- Authority
- JP
- Japan
- Prior art keywords
- contg
- alloy foil
- electrode
- manufacture
- foil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- ing And Chemical Polishing (AREA)
Abstract
PURPOSE: To manufacture Al alloy foil for an electrode of an electrolytic capacitor by forming many deep etching holes in the surface of high purity Al foil contg. a specified amount of P or As at high density by former-stage etching and by making the holes thicker and deeper by latter-stage etching.
CONSTITUTION: Al alloy foil having ≥99.9% Al purity and contg. 0.5W100wt- ppm P or As is subjected to former-stage etching with DC having 5W40A/dm2 current density in an aqueous soln. contg. 2W15% Cl ions and 1W35% hydrochloric acid or sulfuric acid forming a porous oxide film by anodic polarization at 50W100°C. The foil is then subjected to latter-stage etching with DC having 0.5W7A/dm2 current density in an aqueous soln. contg. 2W15% Cl ions and 0.03W3% hydrochloric acid or oxalic acid at 50W100°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1466281A JPS57131399A (en) | 1981-02-02 | 1981-02-02 | Manufacture of aluminum alloy foil for electrode of electrolytic capacitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1466281A JPS57131399A (en) | 1981-02-02 | 1981-02-02 | Manufacture of aluminum alloy foil for electrode of electrolytic capacitor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57131399A true JPS57131399A (en) | 1982-08-14 |
JPS636639B2 JPS636639B2 (en) | 1988-02-10 |
Family
ID=11867420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1466281A Granted JPS57131399A (en) | 1981-02-02 | 1981-02-02 | Manufacture of aluminum alloy foil for electrode of electrolytic capacitor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57131399A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01212425A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic condenser |
JPH01212426A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic condenser |
JPH01212427A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic condenser |
JPH03108711A (en) * | 1989-05-17 | 1991-05-08 | Elna Co Ltd | Method of etching aluminum foil for electrolytic capacitor |
JPH07211593A (en) * | 1994-01-21 | 1995-08-11 | Showa Alum Corp | Aluminum foil for electrolytic-capacitor electrode and its etching method |
WO2005086192A1 (en) * | 2004-03-08 | 2005-09-15 | Vishay Bccomponents B.V. | High capacitance electrolytic capacitor foil, method for production thereof and electrolytic capacitor |
JP2008192647A (en) * | 2007-01-31 | 2008-08-21 | Nichicon Corp | Production method of aluminum foil for electrolytic capacitor |
-
1981
- 1981-02-02 JP JP1466281A patent/JPS57131399A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01212425A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic condenser |
JPH01212426A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic condenser |
JPH01212427A (en) * | 1988-02-19 | 1989-08-25 | Matsushita Electric Ind Co Ltd | Manufacture of electrode foil for aluminum electrolytic condenser |
JPH03108711A (en) * | 1989-05-17 | 1991-05-08 | Elna Co Ltd | Method of etching aluminum foil for electrolytic capacitor |
JPH07211593A (en) * | 1994-01-21 | 1995-08-11 | Showa Alum Corp | Aluminum foil for electrolytic-capacitor electrode and its etching method |
WO2005086192A1 (en) * | 2004-03-08 | 2005-09-15 | Vishay Bccomponents B.V. | High capacitance electrolytic capacitor foil, method for production thereof and electrolytic capacitor |
JP2008192647A (en) * | 2007-01-31 | 2008-08-21 | Nichicon Corp | Production method of aluminum foil for electrolytic capacitor |
Also Published As
Publication number | Publication date |
---|---|
JPS636639B2 (en) | 1988-02-10 |
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