Title:
ALUMINUM CAN FOR SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2013/061707
Kind Code:
A1
Abstract:
An aluminum can for a secondary battery, which is produced by assembling a lid comprising an aluminum alloy sheet and an outer package together by laser beam welding; and a method for producing the aluminum can. Alloy steel sheets, i.e., a first alloy sheet and a second alloy sheet, each comprising an aluminum alloy containing at least 0.30% by mass or less of Si and 2 to 30 ppm by mass of B are prepared. The first alloy sheet and the second alloy sheet are butted against each other in such a manner that the edge face of the second alloy sheet is butted along the side edge of the first alloy sheet. The resultant product is subjected to continuous laser beam welding along a butt line that is formed on the edge face of the first alloy sheet. The conditions for the laser beam welding are so adjusted that the ratio of the width (W) of a melt-joined part that is provided through the butt line to the depth (D) of the melt-joined part becomes 1.5 or more and the melt-joined part can have a depth (D) of 0.35 mm or more.
Inventors:
MATSUMOTO TSUYOSHI
KOBAYASHI KAZUNORI
KOBAYASHI KAZUNORI
Application Number:
PCT/JP2012/073441
Publication Date:
May 02, 2013
Filing Date:
September 13, 2012
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
MATSUMOTO TSUYOSHI
KOBAYASHI KAZUNORI
MATSUMOTO TSUYOSHI
KOBAYASHI KAZUNORI
International Classes:
B23K26/00; B23K26/21; C22C21/00; H01M50/159
Foreign References:
| JP2009287116A | 2009-12-10 | |||
| JP2001043845A | 2001-02-16 | |||
| JPH11104866A | 1999-04-20 | |||
| JP2000268781A | 2000-09-29 | |||
| JPH09320551A | 1997-12-12 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
Mutsumi Sameshima (JP)
Mutsumi Sameshima (JP)
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Claims: