Best Physical Means of Storing Kinetic/Mechanical Energy

[BasketDaN]

Meaning springs and such; what specifically is the strongest (in relation to size) device for storing this energy?

Thanks

 

[ballooza]

a space shuttle... before u break off the Earth's atmoshpere try jumping off that thing... and feel the POWER -in case u won't be hit by a heart attack first-.

nothing is really comin' up to my mind but springs... u can make a very big one and a small one... if ur askin' about qualities then, it's ur choice because logically u can imagine anything!
if ur doing a project or something then try considering a gun's spring that fires the bullet when u trigger (Sniper Rifles are the best example)

 

[NateTG]

Meaning springs and such; what specifically is the strongest (in relation to size) device for storing this energy?

It's unclear exactly what you mean by strongest. Here are some possibilities:
Power Density (Power per Mass)
Power Density (Power per Volume)
Energy Density (Energy per Mass)
Energy Density (Energy per Volume)
Storage Efficiency (Energy out per Energy in)

Do you consider a fast moving object to be 'energy storage'?
Do you consider moving up to be 'energy storage'?
Do you have a particular application in mind?

 

[krab]

If you want portable storage, then flywheels would probably be best.
If you can leave it in one place, just use gravity. Raise a heavy object to some high elevation. You can even make it a fluid, such as the storage behind a hydroelectric dam.
But why would it have to be in mechanical form? Just use gasoline, and convert it to mechanical when needed.

 

[BasketDaN]

It needs to be mobile... and what I'm looking for is either the highest energy per volume or power per volume.

 

[NateTG]

It needs to be mobile... and what I'm looking for is either the highest energy per volume or power per volume.

Pick one, you can't have both.

 

[BasketDaN]

Either meaning I don't know which one... so if you know one or both, that'd be great.