| Lithium tetrachloroaluminate | |
|---|---|
|
lithium tetrachloroaluminate |
|
|
Other names
lithium aluminium chloride; LAC |
|
| Identifiers | |
| CAS number | 14024-11-4 |
| ChemSpider | 21160220 |
| Jmol-3D images | Image 1 |
|
|
|
|
| Properties | |
| Molecular formula | LiAlCl4 |
| Molar mass | g/mol |
| Appearance | white crystals |
| Melting point |
° (decomp) |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
|
| Infobox references | |
Lithium tetrachloroaluminate (LAC, lithium aluminium chloride) is an inorganic compound, a tetrachloroaluminate of lithium, with the formula LiAlCl4.
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.
Lithium batteries with electrolytes based on lithium tetrachloroaluminate tend to have substantial voltage delays after high temperature storage followed with discharge at low temperature. [1]
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]