| 摘要 |
<p>An aluminum alloy board for a battery case lid with a superior laser welding property and workability is provided to obtain the good melting in the low power state. An aluminum alloy board for a battery case lid with a superior laser welding property and workability is made from Mg of less than 0.2%, Fe of over than 1.4% and less than 2.0%, Si of less than 3.0% Cu of less than the Cu 0.2%. The inter metallic compound less than 5 mum over 2 mum exists among matrix over 10000 mum2 40. The Aluminum alloy is made of Mn of over than 0.3% and less 0.05%, Zr of over than 0.01% and less than 0.2%, Cr of over than 0.01% and less than 0.2%.</p> |
