| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve detection accuracy of a magnetic foreign matter contained in a sheet body which plays a role of a power generation element constituting a secondary battery. <P>SOLUTION: The method of manufacturing the secondary battery including a separator 14 which constitutes the power generation element includes a magnetization process of magnetizing the magnetic foreign matter contained in the separator 14 by a magnetization section 41 and a detection process of acquiring information about presence of the magnetic foreign matter with a Gauss meter 42 by detecting a magnetic field of the magnetic foreign matter magnetized in the magnetization process. <P>COPYRIGHT: (C)2012,JPO&INPIT |
