is this element used in batteries?
Yes, Fluoride-ion Battery
Fluoride
A large team of researchers, including Simon C. Jones of California Institute of Technology and Christopher J. Brooks of the Honda Research Institute, have come up with a liquid electrolyte that shuttles fluoride ions to and fro and demonstrated its use in a room-temperature, rechargeable FIB (
when did they start putting fluoride in water 1945 what was the objective of doing this? Water fluoridation is the controlled adjustment of fluoride to a public water supply to reduce tooth decay. what is this substance mentioned here? It is an inorganic, monatomic anion, whose salts are typically white or colorless. how is it associated with teeth? Fluoridated water operates on tooth surfaces: in the mouth, it creates low levels of fluoride in saliva, which reduces the rate at which tooth enamel demineralizes and increases the rate at which it remineralizes in the early stages of cavities. is it found in any food consumed by humans? Seafood, tea, and gelatin.
wiki:1206861
Fluoride [SEP] Fluoride-ion Battery
A large team of researchers, including Simon C. Jones of California Institute of Technology and Christopher J. Brooks of the Honda Research Institute, have come up with a liquid electrolyte that shuttles fluoride ions to and fro and demonstrated its use in a room-temperature, rechargeable FIB (Science 2018, DOI: 10.1126/science.aat7070).