Fluoride ion battery compositions

摘要

A lithium-free, anion based charge transport electrochemical system that uses fluoride ion transporting electrolytes, including ionic liquids, with and without various additives to improve performance, is described. The fluoride ion transporting electrolyte can be wholly or partly an ionic liquid that is typically liquid at temperatures less than 200 degrees Celsius. In other embodiments, electrolytes that remain liquid at less than 100 degrees Celsius are useful.

主权项

1. A fluoride ion battery comprising:
an anode a cathode, an electrolyte comprising an ionic liquid solvent, and a dissolved fluoride salt, the electrolyte being liquid at a temperature less than 200 degrees Celsius and the fluoride salt comprising a fluoride anion and a cation comprising an organic group or comprising a metal-organic species, a substituted metal-organic species or a metal-coordination complex species.