To provide an aluminum alloy sheet for a battery case having excellent pressure resistance and laser weldability, and to provide a battery case made of the alloy sheet.
Disclosed is an aluminum alloy sheet for a battery case having a composition comprising, by mass, 0.10 to 0.60% Si, 0.05 to 0.60% Fe, 0.70 to 1.0% Cu, 0.10 to 1.80% Mn, 0.70 to 1.50% Mg, 0.10 to 0.20% Zr and 0.03 to 0.25% Ti, and the balance Al with inevitable impurities. The aluminum alloy sheet can further comprise 0.02% B and 0.35% Cr. This aluminum alloy sheet is molded, and is thereafter subjected to aging treatment, so as to be a battery case. This battery case has excellent pressure resistance because an intermediate phase of Al2CuMg is sufficiently exhibited by the aging treatment, and further, laser welding at a high speed is possible because the Cu content is controlled to the above specified one.
ZHAO PIZHI
ISHII HIDEHIKO
| JP2007194221A | 2007-08-02 | |||
| JP2000336448A | 2000-12-05 | |||
| JP2006169574A | 2006-06-29 | |||
| JP2001003131A | 2001-01-09 | |||
| JPH11310842A | 1999-11-09 | |||
| JP2007211290A | 2007-08-23 | |||
| JP2007031825A | 2007-02-08 | |||
| JP2007031825A | 2007-02-08 | |||
| JP2007194221A | 2007-08-02 | |||
| JP2000336448A | 2000-12-05 | |||
| JP2006169574A | 2006-06-29 | |||
| JP2001003131A | 2001-01-09 | |||
| JPH11310842A | 1999-11-09 | |||
| JP2007211290A | 2007-08-23 |
JPN6012028638; 薄板加工法委員会割れ防止研究小委員会編集: アルミニウム合金ミグ溶接部の溶接割れ防止マニュアル 第２刷発行, 20031104, ｐ．３０-３８, 社団法人軽金属溶接構造協会