发明名称 |
ALUMINUM ALLOY PLATE FOR BATTERY CASES, WHICH HAS EXCELLENT MOLDABILITY AND WELDABILITY |
摘要 |
Provided is a 1000-series aluminum alloy plate which has high strength applicable to large-size lithium ion battery cases and also has excellent moldability and excellent laser weldability. An aluminum alloy plate produced from a DC cast slab. The aluminum alloy plate has such a chemical composition comprising 0.01 to 0.4 mass% of Si, 0.01 to 0.5 mass% of Fe, 0.002 to 0.3 mass% of Co and a remainder made up by Al and impurities, wherein the content of Cu, which is contained as an impurity, is limited to less than 0.2 mass%. The aluminum alloy plate has a metallic structure in which the number of second phase particles each having an equivalent circle diameter of 3 µm or more is 110 particles/mm 2 or more and less than 1000 particles/mm 2 . A cold-rolled and annealed plate produced from the aluminum alloy plate has an elongation value of 30% or more. |
申请公布号 |
KR20140148497(A) |
申请公布日期 |
2014.12.31 |
申请号 |
KR20147032647 |
申请日期 |
2013.07.19 |
申请人 |
NIPPON LIGHT METAL COMPANY, LIMITED |
发明人 |
SUZUKI KENTA;OOWADA YASUYUKI;HORI HISASHI;KANAMORI KEIJI |
分类号 |
C22C21/00;C22C21/02;C22F1/04;H01M2/02 |
主分类号 |
C22C21/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|