| 摘要 |
PROBLEM TO BE SOLVED: To provide a separator having sufficient retainability of electrolytic solution. SOLUTION: The separator for electric or electronic parts made of aramid paper and coated with at least one type of material selected from an ionic material, a hydroxyl group containing material, and a silicon compound. The separator is heat-treated before and/or after coating. Here, the ionic material is selected from calcium carbonate, calcium chloride, anhydrous calcium chloride, calcium oxide, sodium chloride, sodium sulfate, anhydrous sodium sulfate, sodium sulfite, copper sulfate, anhydrous copper sulfate, aluminum sulfate, and sodium carboxymethyl cellulose. The hydroxyl group containing material is selected from alcohols, glycols, and polysaccharides, and the silicon compound is selected from silica gel, silica sol, anhydrous silica, and zeolite. COPYRIGHT: (C)2009,JPO&INPIT
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