Flexible and hybrid energy harvesting device combining piezoelectric and electrostatic conversions
US11870372B2 · kind B2 · utility
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3References
18Claims
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Assignee
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Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Sep 5, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/872
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are device implementations for a hybrid energy harvesting device and methods for harvesting mechanical energy from the ambient. The various device implementations utilize a combination of electrostatic energy conversion and piezoelectric energy conversion elements. The method simultaneously converts mechanical energy into electrical charge by electrostatic and piezoelectric energy harvesting. The devices include a piezoelectric harvester including a pair of electrodes and piezoelectric nanocomposite polymer, an electrostatic harvester including an electret film and a pair of electrostatic electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.