| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery which has a high capacity and excels in cycle property. <P>SOLUTION: The battery has a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode is produced by using a silicon alloy or a tin alloy. Preferably, the silicon alloy is an alloy made of Si and Fe or an alloy made of Si and Ni, and the content rate of Si in the silicon alloy is 50 mol% or higher, and preferably, the tin alloy is an alloy made of Sn and Fe or an alloy made of Sn and Ni and the content rate of Sn in the tin alloy is 50 mol% or higher. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
