Fluoride ion battery compositions
AssigneeCalifornia Institute of Technology
InventorsIsabelle Darolles, Cedric M. Weiss, Maksudul M. Alam, Arunkumar Tiruvannamalai, Simon Christopher Jones
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Abstract
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.
Claims25
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.
A fluoride ion battery comprising:
- a substantially lithium-free anode and cathode, with at least one of the anode or cathode containing fluorine, and
- a substantially lithium-free liquid electrolyte comprising an ionic liquid and an organic-soluble fluoride salt, wherein the electrolyte is liquid at a temperature less than 200 degrees Celsius and the organic-soluble fluoride salt comprises a fluorine 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.
A fluoride ion battery comprising
- an anode
- a cathode, and
- an electrolyte comprising at least one of an ionic liquid fluoride or acidic ionic liquid fluoride, the ionic liquid fluoride or acidic ionic liquid fluoride being liquid at room temperature.
Dependencies are inferred from the claim text.