| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-performance power storage device including as an electrolytic solution, an ordinary temperature molten salt including monovalent anion and cyclic quaternary ammonium cation that has excellent reduction resistance. <P>SOLUTION: A power storage device includes as an electrolytic solution, an ordinary temperature molten salt including cyclic quaternary ammonium cation represented by the following general formula (G1). In the formula, two of R1-R5 each represent any of an alkyl group, a methoxy group, a methoxymethyl group, and a methoxyethyl group with a carbon number of 1-20, another two thereof each represent a hydrogen atoms, and A<SP POS="POST">-</SP>represents any of monovalent imide-based anion, monovalent methide-based anion, perfluoroalkylsulfonate anion, tetrafluoroborate (BF<SB POS="POST">4</SB><SP POS="POST">-</SP>), and hexafluorophosphate (PF<SB POS="POST">6</SB><SP POS="POST">-</SP>). <P>COPYRIGHT: (C)2012,JPO&INPIT |
