Half a croissant, on a plate, with a sign in front of it saying '50c'
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Radical Battery

create a centrifugal lead acid flow battery
  [vote for,

Create a structure of conductive cylinders that can be fixed in two positions, 180 degrees apart and spun as a group. Connect them thru electrical slip rings and pump acid electrolyte with lead sulphate particles into the assembly while spinning and charging. The particles cling to the outermost surface and form charged areas upon the addition of current. For discharge, the gang of cylinders are individually turned 180 degrees and spun again, releasing the sulphate particles to be pumped away. Goal: indefinite battery life and a possible 20 times the standard charge density.
Tobor, Apr 13 2007


       Indefinite battery life, maybe, but how do you power the centrifuge?
DrCurry, Apr 13 2007

       //how do you power the centrifuge?// It takes only *slightly* more power than is generated by the battey ...
nuclear hobo, Apr 13 2007

       hello and welcome Tobor.
po, Apr 13 2007

       I don't think the centrifuge itself would need much power if it were in a vacuum, and up to speed. However, at high rotational speeds, rotating the cylinders by 180 degrees would require very high torque against the centripetal effect. Effectively, it woud be like lifting the lead against a very high gravity.   

       I'm not entirely sure I understand the way the cell works, either. Any more explanation?
Ling, Apr 14 2007

       Is the spin speed slow? Otherwise, it doesnt matter what relative position the conductive cylinders are in.   

       //to be pumped away// ... so, as well as the electrical slip rings, you have some magic hydraulic connector?   

       Welcome [Tobor]- nice to see some original thought.
ConsulFlaminicus, Apr 14 2007

       So is that to say that the electrickery is retained by the accelleration due to the circular motion of the device? I canna think of a better way to nail down those rambunctious recalcitrant relectrons.
the dog's breakfast, Apr 14 2007

       The battery would power its own spin motor. As long as drag is a minimum, there would be little loss.   

       The hydraulic/slip ring connections would be tricky, admittedly. Perhaps an internal inverter and rotary transformer would work better.   

       The point of the invention is, that batteries are inefficient and short lived. Only a small amount of electrode -as surface- get used.
Tobor, Apr 15 2007

       Easier just to add EDTA.
ldischler, Jul 20 2007

       Not sure i get the idea here: the centrifugal force would somehow counter the electrical charge, but turned 180 degrees the forces still point radially, as before, so what happens as you turn them?
loonquawl, Jul 20 2007


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