| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a separator that provides a nonaqueous lithium secondary battery in which deposit of metal ion to negative electrode surface is reduced, and capacity deterioration is less even charge and discharge are repeated under high temperatures, and moreover, a nonaqueous lithium-ion secondary battery composed by using such a kind of separator, and a manufacturing method of the lithium-ion secondary battery composed by using such a kind of separator. <P>SOLUTION: This is the battery separator composed by a cross-linked polymer layer which has iminodiacetate group in a side chain of polymer molecule chain and is carried by a porous resin film. The cross-linked polymer layer is preferably a substantially nonporous ionic conductive layer, and moreover, the cross-linked polymer has oxetanyl group having cationic polymerization property in the molecule. <P>COPYRIGHT: (C)2009,JPO&INPIT |
