Title:
電池ケース用アルミニウム合金板およびその製造方法ならびに電池ケース
Document Type and Number:
Japanese Patent JP5879646
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for a battery case excellent in formability, pulse laser weldability, strength and pressure resistance (swelling resistance), a method of manufacturing the aluminum alloy sheet for the battery case, and a battery case using the aluminum alloy sheet for the battery case.SOLUTION: In an aluminum alloy sheet for a battery case containing Mn:0.4 to 1.5 mass%, Cu:0.7 to 4.0 mass%, Mg:0.2 to 1.5 mass%, Si:0.05 to 1.0 mass%, Fe:0.05 to 1.0 mass% and the balance Al with inevitable impurities, the inevitable impurities contains Zn:0.3 mass % or less, Ti: less than 0.02 mass% and B:20 mass ppm or less, and an area ratio of an intermetallic compound having a maximum length of 1 μm or more is greater than 0.3% and less than 2.1%, and the number of the intermetallic compounds having the maximum length of 11 μm or more is 140 pieces/mmor less in a thickness direction center part of a cross section of the aluminum alloy sheet.
Inventors:
Kazunori Kobayashi
Go Matsumoto
Mitsuo Hino
Go Matsumoto
Mitsuo Hino
Application Number:
JP2014128051A
Publication Date:
March 08, 2016
Filing Date:
June 23, 2014
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C22C21/12; C22C21/00; C22F1/04; C22F1/057; H01M2/02
Domestic Patent References:
| JP2007211290A | ||||
| JP2007031825A | ||||
| JP2008127656A | ||||
| JP2006169574A | ||||
| JP2008223087A | ||||
| JP2006188744A | ||||
| JP2009249708A | ||||
| JP2009097029A |
Attorney, Agent or Firm:
Isono Dozo