| abstract |
PROBLEM TO BE SOLVED: To provide a novel quaternary ammonium-based room temperature melt useful as an electrolyte salt or an electrolyte for an electrochemical device such as a secondary battery, an electric double layer capacitor, a fuel cell, or a dye-sensitized solar cell, and further as a solvent for organic synthesis Provide salt. SOLUTION: A tertiary diamino compound and an alkylating agent are reacted, and then the product is subjected to anion exchange, whereby the following general formula (1) [Chemical 1] (In the formula, R 1 to R 5 each independently represents an alkyl group having 1 to 4 carbon atoms, n represents an integer of 1 to 6, and A represents an anion.) A quaternary ammonium-based room temperature molten salt represented by |