Lithium tetrachloroaluminate

Lithium tetrachloroaluminate

Names
IUPAC name lithium tetrachloroaluminate
Other names lithium aluminium chloride; LAC
Identifiers
CAS Number	14024-11-4 Y
3D model (Jmol)	Interactive image
ChemSpider	21160220 Y
ECHA InfoCard	100.034.396
InChI InChI=1S/Al.4ClH.Li/h;4*1H;/q+3;;;;;+1/p-4 Y Key: AQLRWYUVWAYZFO-UHFFFAOYSA-J Y InChI=1/Al.4ClH.Li/h;4*1H;/q+3;;;;;+1/p-4/rAlCl4.Li/c2-1(3,4)5;/q-1;+1 Key: AQLRWYUVWAYZFO-VCMAQHAHAL
SMILES [Li+].Cl[Al-](Cl)(Cl)Cl
Properties
Chemical formula	LiAlCl4
Molar mass	140.5 g/mol
Appearance	white crystals
Melting point	(decomposes)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Lithium tetrachloroaluminate (LAC, lithium aluminium chloride) is an inorganic compound, a tetrachloroaluminate of lithium, with the formula LiAlCl₄.^[1]

Solution of lithium tetrachloroaluminate in thionyl chloride is the liquid cathode and electrolyte of some lithium batteries, e.g. the lithium-thionyl chloride cell. Another cathode-electrolyte formulation is lithium tetrachloroaluminate+thionyl chloride+sulfur dioxide+bromine.

Other salts used in lithium battery electrolytes are lithium bromide, lithium perchlorate, lithium tetrafluoroborate, and lithium hexafluorophosphate; less common ones are lithium chloride, lithium iodide, lithium chlorate, lithium nitrate, lithium hexafluoroarsenate, lithium hexafluorosilicate, lithium bis(trifluoromethanesulfonyl)imide, and lithium trifluoromethanesulfonate.^[2]

References