| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a secondary battery having high reliability by preventing corrosion of a battery can of a nonaqueous secondary battery, in particular, a lithium secondary battery. <P>SOLUTION: In the secondary battery having a battery can formed by crimping a metallic can and a metallic lid having a plating layer and using a nonaqueous electrolyte, the deposit layers of the metallic battery can includes, from the nonaqueous-electrolytic-solution side, a nickel deposit, the steel sheet, a zinc deposit and a nickel deposit. In place of the zinc deposit, an aluminum or zinc/aluminum mixture layer may be formed. Desirably, the thickness of the nickel deposits have a thickness of 1-5 μm and the zinc deposits have a thickness of 3-20 μm. The steel sheet preferably has a thickness of 0.2-2 mm. <P>COPYRIGHT: (C)2011,JPO&INPIT |
