| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrolyte which can ensure high breakdown voltage and suppress the increase in tanδ, by preventing reaction between an electrode foil and a water content in an electrolyte over a long time. SOLUTION: A solvent made mainly of ethylene glycol is mixed with azelaic acid, carboxylic acid, such as benzoic acid, ammonium salt of boric acid, and triacrylformal indicated by a chemical Formula (1). The mixing quantity of triacrylformal is 0.10-5.0 wt.% with respect to the electrolyte as a whole, for example. COPYRIGHT: (C)2007,JPO&INPIT
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