| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aluminum alloy plate for sealing material in lithium ion batteries which, because of its reduced work hardenability, requires no heat treatment after being pressed and can prevent an increase in the working pressure of an explosion-proof valve, and which can also accomplish heightened case strength. <P>SOLUTION: There is provided an aluminum alloy plate which has a composition of, by mass%, ≥0.8 and ≤1.5% Mn, 0.6% or less Si, 0.7% or less Fe, 0.20% or less Cu, and 0.20% or less Zn, with the balance comprising Al and unavoidable impurities and satisfies (TS96-TS80)<15 Mpa and TS80≥200 MPa when a comparison is made between TS80 (MPa) being a tensile strength at R of 80% and TS 96 (MPa) being a tensile strength at R of 96% [wherein R is the cold work ratio defined by R(%)=[(T0-T1)/T0]×100 (wherein T0 is the thickness of the original plate, and T1 is the thickness of the plate after being pressed)]. <P>COPYRIGHT: (C)2013,JPO&INPIT |
