LIQUID ELECTROLYTE FOR FLUORIDE ION BATTERY AND FLUORIDE ION BATTERY

摘要

The problem to be solved by the present invention is the provision of a liquid electrolyte for a fluoride ion battery which allows a larger capacity of the battery. The present invention solves the problem by providing a liquid electrolyte for a fluoride ion battery comprising a fluoride salt and a solvent to dissolve the fluoride salt, characterized in that the solvent is an aromatic material having an aromatic cation preferably a pyridinium or imidazolium cation and an anion, and a molar ratio of the aromatic cation to the fluoride ion is more than 1.