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Title:
METHOD FOR MANUFACTURING ALUMINUM FOIL
Document Type and Number:
WIPO Patent Application WO/2011/001932
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a highly-ductile, high-purity aluminum foil at high speed by electrolysis using a plating solution having a low chlorine concentration. Said method is characterized by the formation of an aluminum film on the surface of a base material, followed by the separation of the film from the base material. The aluminum film is formed on the surface of the base material by electrolysis using a plating solution that contains, at least: (1) a dialkyl sulfone; (2) an aluminum halide; and (3) one or more nitrogen-containing compounds selected from the group comprising ammonium halides, primary amine hydrohalide salts, secondary amine hydrohalide salts, tertiary amine hydrohalide salts, and quaternary ammonium salts represented by the general formula R1R2R3R4N∙X (R1 through R4 represent identical or different alkyl groups and X represents a counteranion for a quaternary ammonium cation).

Inventors:
OKAMOTO Atsushi (Ltd. Magnetic Materials Research Laboratory 2-15-17, Egawa, Shimamoto-cho, Mishima-gu, Osaka 13, 〒6180013, JP)
岡本 篤志 (〒13 大阪府三島郡島本町江川2-15-17 日立金属株式会社磁性材料研究所内 Osaka, 〒6180013, JP)
HOSHI Hiroyuki (Ltd. Magnetic Materials Research Laboratory 2-15-17, Egawa, Shimamoto-cho, Mishima-gu, Osaka 13, 〒6180013, JP)
Application Number:
JP2010/060964
Publication Date:
January 06, 2011
Filing Date:
June 28, 2010
Export Citation:
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Assignee:
Hitachi Metals, Ltd. (1-2-1, Shibaura Minato-k, Tokyo 14, 〒1058614, JP)
日立金属株式会社 (〒14 東京都港区芝浦一丁目2番1号 Tokyo, 〒1058614, JP)
OKAMOTO Atsushi (Ltd. Magnetic Materials Research Laboratory 2-15-17, Egawa, Shimamoto-cho, Mishima-gu, Osaka 13, 〒6180013, JP)
岡本 篤志 (〒13 大阪府三島郡島本町江川2-15-17 日立金属株式会社磁性材料研究所内 Osaka, 〒6180013, JP)
International Classes:
C25D1/04; C22C21/00; C25D1/00; C25D3/66; H01G11/28; H01G11/68; H01G11/84; H01M4/66; H01G11/02; H01G11/04
Domestic Patent References:
2010-04-22
Foreign References:
JPH01104791A1989-04-21
JP2010090414A2010-04-22
JP2005108724A2005-04-21
JP2008195989A2008-08-28
JPH01104791A1989-04-21
JP2008031551A2008-02-14
JPH0693490A1994-04-05
Other References:
See also references of EP 2450476A1
Attorney, Agent or Firm:
TSUJITA Takashi et al. (KT building 4F, 11-12 Takada 3-chome, Toshima-k, Tokyo 33, 〒1710033, JP)
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