| abstract |
Provided is a power storage device using a room temperature molten salt excellent in reduction resistance as an electrolyte. A room temperature molten salt represented by the formula (G1). (Of R1 to R5, one or two is a C1-20 alkyl group, methoxy group, methoxymethyl group, or methoxyethyl group, and the other three or four are H; A- is a monovalent imide anion. Monovalent methide anion, perfluoroalkyl sulfonate anion, tetrafluoroborate (BF4-) or hexafluorophosphate (PF6-)) |