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Thread: Ferroelectric energy storage

  1. #1 Ferroelectric energy storage 
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    Join Date
    Apr 2009
    As I know usual capacitors store charges on both sides of dielectric plate.
    Dielectric atoms experience polarization and dipole formation.
    Some of dielectrics are called ferroelectrics (such as Barium Titanate) and are able
    to retain their polarisation even in absence of external electric field.
    Is it possible to create ferroelectric energy storage which would not use any free charges but store energy only in polarization of material after applied potential?
    Maybe it will allow to diminish problem of electrical breakdown,because in regular
    capacitor charges will try to break through, one to another, but in polarazed ferroelectric there is no charges and breakdown can't happen?
    What whould be theoretocal energy density of such device?And how energy could be retreived from it?

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