Power Density

Characteristic parameter of a battery/electrical power source indicating its electrical power per unit weight or volume.

Specific Power or Gravimetric Power Density
Weight based power density [watt/kg].

Power Density or Volumetric Power Density
Volume based power density [watt/litre or watt/m3].

Note: the terminology is not strictly defined.

See also: Battery, Energy Density, Ragone Plot, Rechargeable Battery.

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Subjects: Chemistry Mechanical Engineering