| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy foil for an electrode of a lithium ion battery, which does not cause a decrease of its strength even if having been heated in a drying step in a process of manufacturing a positive electrode plate, has such a sufficient strength as not to be deformed even in a compression bonding step, has sufficiently low electric resistance, enables the lithium ion battery to be highly densified and have high energy, and is suitable particularly for a positive electrode material. SOLUTION: The alloy foil includes 1.0-1.5% Mn, 0.05-0.2% Cu and the balance Al with unavoidable impurities and contains 1.5×10<SP>5</SP>to 6.0×10<SP>5</SP>pieces/mm<SP>2</SP>of intermetallic compounds by number, which have particle diameters of 0.1-1.0μm and exist in the matrix; wherein an electric resistance value, measured in liquid nitrogen with a double bridge method, is 1.6μΩcm or less. COPYRIGHT: (C)2010,JPO&INPIT |
