| 摘要 |
PROBLEM TO BE SOLVED: To provide a separator for a storage battery capable of keeping oxidation resistance over a long time and thereby capable of extending the battery life, in a separator for a storage battery formed with a polyolefin-based resin, inorganic powder and mineral oil. SOLUTION: In a separator for a storage battery formed with a polyolefin-based resin, inorganic powder and mineral oil (mineral oil A), this separator for a storage battery is characterized by dispersing and holding releasing microcapsules with mineral oil (mineral oil B) contained. COPYRIGHT: (C)2005,JPO&NCIPI
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