| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a copper foil for negative electrode collector (electrode material) capable of maintaining excellent charge and discharge cycle life characteristic and high battery capacity at early charge as electrode material for Li battery and manufacturing therefor, and to provide rust prevention without using chrome by eliminating an adverse effect of environmental pollution due to hexavalent chromium from environmental problems. <P>SOLUTION: The copper foil for battery collector is structured by forming an alloy layer of low-melting metal and copper on a surface of at least one side of unprocessed copper foil and then forming an alloy layer of a nickel layer or nickel and the low-melting metal thereon. Preferably, the low-melting metal is Zn, Bi, or In. <P>COPYRIGHT: (C)2013,JPO&INPIT |
