Lithium (as lithium fluoride) is used as an additive to aluminium smelters (Hall–Héroult process), reducing melting temperature and increasing electrical resistance, a use which accounts for 3% of production (2011).
Lithium (som lithiumfluorid) anvendes som tilsætningsstof til aluminiumsmeltere (Hall–Héroult-processen) for at reducere smeltetemperatur og øge elektrisk modstand, hvilket står for 3 % af produktionen (2011).