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US 7,521,842 B2Granted
Magnetostrictive / piezo remote power generation, battery and method
AssigneeCooper Tire & Rubber Company
InventorsRandall L. Tucker, Gary T. Carroll
Life of this patent
Estimating the term…
Abstract
A power generation device generates power by subjecting a composite of magnetostrictive material and piezo material to a magnetic field. The composite of magnetostrictive material and piezo material may be incorporated in a battery or other storage device.
Claims13
A method for forming a battery comprising the steps of:
- (a) providing a composite of (i) a magnetostrictive material and (ii) lead zirconate titanate (PZT) piezo material which generates electricity when subjected to magnetic field, said composite having a natural resonant frequency;
- (b) connecting said composite to a capacitor or ferro capacitor;
- and
- (c) subjecting said composite to a magnetic field having resonant frequency in the range of 90% to 110% of the natural resonant frequency of said composite.
1 more element
A method of forming a battery comprising the steps of:
- (a) forming a structure having (i) a composite of magnetostrictive material and piezo material, (ii) a first terminal at a first location, (iii) a second terminal at a second location, and (iv) a capacitor or ferro capacitor, said capacitor or ferro capacitor being positioned between said composite and (A) said first terminal or (B) said second terminal;
- and
- (b) subjecting said structure to a pulsed or continuous magnetic field.
Dependencies are inferred from the claim text.