| 摘要 |
Preventing deterioration of a secondary battery and reducing electric resistance of a conductor such as metallic wiring in an electric apparatus or device. Radioactive substance 4 is fixed to a sheet-like material 3 and this sheet-like material is bonded to an apparatus or device such as a portable phone T. Alternatively, the radioactive substance 4 is mixed in raw material resin 9 and part of the apparatus or device, for example, a lid body 10 of the secondary battery B is formed with an obtained compound. Or the radioactive substance 4 is mixed in a paint 11 and then, by coating an apparatus or device therewith, ions or deposit in an icon conductor of the secondary battery B are excited. Consequently, chemical reaction activity of ions or deposit is raised so as to suppress growth or excessive expansion of deposit crystal, thereby protecting the secondary battery B from deterioration. Further, by exciting bonding electrons in metallic wiring or the like, the degree of freedom is raised, thereby reducing electric resistance of the conductor.
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