| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lithium secondary battery with high cycle property capable of restraining deterioration of battery function while preserving it. <P>SOLUTION: The lithium secondary battery comprises a negative electrode 2 containing activator composed of at least one compound chosen from lithium titanate and titanium oxide, absorbing and releasing lithium ion, a separator containing poly phenylene sulfide or polyether ether ketone as the main material, and nonaqueous solvent containing aliphatic polycarbonate and ring-shaped polycarbonate. <P>COPYRIGHT: (C)2004,JPO |
