| 摘要 |
The invention provides an aluminum alloy plate used for pulse laser welding, and the aluminum alloy plate comprises 0.1-2.0 mass% of Fe; 0.05-0.5 mass% of Si, 0.05-0.5 mass% of Mn, and the balance is Al and impurities, in a central part in a plate-thick direction of the cross section of the aluminum alloy plate, the area ratio of an intermetallic compound with the largest length of more than 1 micrometer, and the number of the intermetallic compound with the largest length of more than 11 micrometers is lower than 140/mm2. Additionally, the aluminum alloy plate for a cell box comprises 0.1-2.0 mass% of Fe; 0.05-0.5 mass% of Si, 0.05-0.5 mass% of Mn, less than 0.5 mass% of Cu, less than 1.0 mass% of Mg, and the balance is Al and impurities, the electric conductivity of the aluminum alloy plate for a cell is lower than 62 IACS%. |
