### Energy Density: Specific Energy Density, Gravimetric Energy Density & Volumetric Energy Density

The energy density describes the amount of energy that can be stored in a battery per mass or per volume. There is a “volumetric energy density”, sometimes short-abbreviated as “energy density” and the specific energy density also called as the gravimetric energy density. Therefore, the amount of energy per kg (Wh/kg) or the amount of energy per litre (Wh/L).