ENERGY HARVESTING DEVICE
First Claim
1. A piezoelectric energy harvesting system comprising a cantilever including a conducting element, at least a first piezoelectric layer and a non-piezoelectric layer, wherein said piezoelectric layer has a thickness of about 1 μ
- m-about 150 μ
m, and an electrical connection to a device which stores or uses energy.
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Accused Products
Abstract
A piezoelectric energy harvesting device (PEHD) comprising a driving element, conducting element, piezoelectric layer and non-piezoelectric layer capable of converting ambient mechanical energy into electrical energy. The piezoelectric layer may be constructed from PMN-PT or PZT having a thickness of about 1-150 ?m. The PEHD may be used to generate about 1 W. The harvested energy may be stored and used to power microelectronic devices and rechargeable battery technologies.
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Citations
20 Claims
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1. A piezoelectric energy harvesting system comprising a cantilever including a conducting element, at least a first piezoelectric layer and a non-piezoelectric layer, wherein said piezoelectric layer has a thickness of about 1 μ
- m-about 150 μ
m, and an electrical connection to a device which stores or uses energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- m-about 150 μ
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16. A method harvesting energy harvesting comprising the steps of:
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a. exposing at least one piezoelectric cantilever including a driving element, at least a first piezoelectric layer having a thickness of about 1 μ
m-about 150 μ
m, a conductive element, and a non-piezoelectric layer, to a mechanical or vibrational force, andb. harvesting electrical energy generated by conversion of said mechanical or vibrational energy into electrical energy. - View Dependent Claims (17, 18, 19, 20)
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Specification