摘要 |
PROBLEM TO BE SOLVED: To provide driving electrolyte for an electrolytic capacitor which can suppress a rise of internal pressure and can suppress appearance expansion of a product even in a condition that a temperature of flow/reflow by use of lead-free solder is set to be high. SOLUTION: Organic carboxylic acid such as adipic acid, sebacic acid, azelaic acid, benzoic acid, phthalic acid, maleic acid, or salt of it, and 5.0 to 10.0 wt% of 2,5-dihydro thiophene-3-carboxylic acid methyl ester shown by a following chemical formula are dissolved in solvent which is mainly composed ofγ-butyrolactone. COPYRIGHT: (C)2006,JPO&NCIPI
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