| abstract |
A fluoride ion battery comprising a positive electrode active material layer, a negative electrode active material layer, and an electrolyte layer formed between the positive electrode active material layer and the negative electrode active material layer, the electrolyte layer containing an electrolytic solution including a fluoride salt and a solvent for dissolving the fluoride salt, and the solvent is an ether-containing material with a cation and an anion, in the cation, an ether group represented by -CH 2 -OR binds to a central cation element which is N or P, and R represents an alkyl group or a fluoroalkyl group. |