Lithium hexafluorozirconate is an inorganic compound of lithium, fluorine, and zirconium with the chemical formula . It is the lithium salt of hexafluorozirconic acid.
Structure Lithium hexafluorozirconate forms tetragonal crystals under standard conditions; a monoclinic phase has been observed under high pressure.
Preparation Lithium hexafluorozirconate can be prepared by treating lithium fluoride with hexafluorozirconic acid solution.
Uses Lithium hexafluorozirconate is of research interest as an electrolyte in lithium metal batteries. The in situ formation of a trigonal solid–electrolyte interphase was reported to enhance Li-ion transfer and suppress the growth of Li dendrites.
Related compounds Tetralithium octafluoridozirconate (Li4ZrF8) has been characterized. It is prepared by hydrothermal synthesis.
A hexafluorozirconate composed of lithium and magnesium cations (Li2Mg(ZrF6)2) has also been characterized along with the tetrahydrate.
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