| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a separator for a secondary battery which suppresses deterioration of output performance of a battery, a nonaqueous electrolyte secondary battery, and an apparatus of manufacturing the separator for the secondary battery. <P>SOLUTION: In a method of manufacturing a separator 63 for a secondary battery, the separator 63 is manufactured by an extrusion molding. And a magnetic field is formed in the surrounding of a die 71 by magnetic field formation parts 74, 75 connected to an AC power supply 80 during the extrusion molding of the separator 63. This magnetic field is formed such that a magnetic flux strides over a flow channel 712 of a resin material 630 in the die 71. The resin material 630 constituting the separator 63 passes through the magnetic field. Consequently, at least a portion of molecules of the resin material 630 is oriented in a constant direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
