| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolytic solution secondary battery which improves both safety and high-temperature storage property. <P>SOLUTION: This nonaqueous electrolytic solution secondary battery comprises a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. The negative electrode comprises an active material which can form an alloy with lithium, a catalytic element which encourages carbon nanofibers to grow, and a composite particle having the carbon nanofibers grown on the surface of the active material while the nonaqueous electrolytic solution comprises at least either a phosphazene compound or a phosphate ester kind as an additive agent. <P>COPYRIGHT: (C)2007,JPO&INPIT |
