| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a separator, a manufacturing method of the separator and a nonaqueous electrolyte battery, capable of obtaining a low shutdown temperature, a high short circuit temperature, high membrane strength at high temperatures, and high productivity. <P>SOLUTION: The separator 15 has a porous structure and is composed of: a polyolefin thermoplastic resin (A); and a block copolymer (BC) containing a monomer unit derived from a polyolefin resin (B) having a melting point lower than that of the polyolefin thermoplastic resin (A) and a monomer unit derived from a polymer component (C) incompatible with polyolefin. <P>COPYRIGHT: (C)2009,JPO&INPIT |
