Altair Nanotechnologies Inc. is an American company specializing in the development and manufacturing of energy storage systems for efficient power and energy management.

Altair Nantechnologies designs advanced lithium-ion energy systems and batteries.

Altairnano's best-known product are their lithium-ion batteries, produced by Altair's Power and Energy division.

The batteries have an anode made of a lithium titanate oxide formed into a spinel structure.

The titanate replaces the graphite anodes of typical lithium-ion batteries.