Ionic liquid-based piezoelectric apparatus and related methods
US12308765B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2023 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Oct 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/852
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to piezoelectric apparatus containing ionic liquids. The piezoelectric apparatus includes a chamber defining an internal volume containing an ionic liquid therein. The ionic liquid can generate a voltage or current upon application of force to the chamber or cell, thus exhibiting a piezoelectric effect. The ionic liquid also can deform upon application of a voltage to the ionic liquid, thus exhibiting a converse piezoelectric effect. The piezoelectric apparatus further includes first and second electrodes in contact with the ionic liquid at first and second locations, such as at opposing locations in the chamber with the ionic liquid positioned between the electrodes. The piezoelectric apparatus, depending on whether it is configured to exhibit a piezoelectric effect or a converse piezoelectric effect, can form or otherwise be a component of various energy or sensing devices, such as an energy harvester, force sensor, piezo-pneumatic device or actuator, optical sensor, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.