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AssigneeUniversidade Do Porto
InventorMaria Helena Braga SOUSA SOARES DE OLIVEIRA BRAGA
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The present invention relates to a superconductor comprising a ferroelectric with a very high dielectric constant at temperatures from below to above room temperature, in which a spontaneous dynamic alignment of the dipoles of the ferroelectric the superconductivity is induced at the surface. The use of the innovative superconductor and application of the phenomenon with subsequent harvesting of the generated current, the ferroelectric, can be applied between two identical conductors or semiconductors, two dissimilar conductors or semiconductors, or as an insulator core of a conductor or just in contact with air. The present invention is thus useful in applications that enable the transmission of electrical power with no losses in the fields of energy, harvest, storage, sensors, transistors, parts of a computer, photovoltaic cell or panels, wind turbines, SQUID, MRI, mass spectrometer, particle accelerators, smart grids, electric power transmission, transformers, power storage devices and/or electric motors.
A superconductor comprising:
The superconductor of any one of the preceding claims wherein the ferroelectric is in contact with two interfaces that are similar or dissimilar conductors.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Na-based Na2.99Ba0.005ClO and the conductors are Cu.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Na-based Na2.99Ba0.005ClO and the conductors are Zn and Cu.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Na-based Na2.99Ba0.005ClO and the conductors are Zn and C foam, sponge, wires, nanotubes, graphene, graphite, carbon black or any other allotrope or carbon structure with or without impurities.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Li-based (1-x)Li2.99Ba0.005ClO+xLi3-2y-zMyHzClO, with 0≤x≤1, one conductor is Li and the other is a mixture of MnO2 with carbon black and/or a binder.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Na-based (1-x)Na2.99Ba0.005ClO+xNa3-2y-zMyHzClO, with 0≤x≤1, one conductor is Na and the other is a mixture of Na3V2(PO4)3 with carbon black and/or a binder.
The superconductor of any one of the preceding claims wherein the ferroelectric is in contact with two interfaces that are similar or dissimilar semiconductors or a conductor and a semiconductor.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Li-based Li2.99Ba0.005ClO+Li2S, the conductor is Al and the semiconductor Si.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Li-based Li2.99Ba0.005ClO+Li3-2y-zMyHzClO, the conductor is Li and the semiconductor MnO2 or a mixture of sulfur and carbon.
The superconductor of any one of the preceding claims wherein the ferroelectric is in contact with two interfaces one a semiconductor or a conductor, and the other an insulator with a conductor contact or electron collector.
The superconductor of any one of the preceding claims wherein the ferroelectric is the Na-based or Li-based and the conductors are Zn or Cu, Li, Na, a Li alloy or composite, a Na alloy or composite and the ferroelectric surface area is in contact with an insulator such as air, vacuum, polymer, plasticizer, insulating tape, glue, or binder.
The superconductor of any one of the preceding claims wherein the ferroelectric is Li-based, Li2.99Ba0.005ClO or a Li2.99Ba0.005ClO+Li3-2y-zMyHzClO mixture or a composite, and the conductor is Li or a Li alloy such as LiMg or a solid solution of (Li) and the ferroelectric surface area is in contact with an insulator such as air, vacuum, polymer, plasticizer, insulating tape, glue, or binder.
The superconductor of any one of the preceding claims that comprises a wire conductor filled with a ferroelectric.
The superconductor of any one of the preceding claims that comprises at least one interface between a ferroelectric and an insulator.
The superconductor of any one of the preceding claims in which the insulator is Si2O, a polymer, a plasticizer such as succinonitrile and/or air.
The superconductor of any one of the preceding claims in which the insulator has an interface with two ferroelectric materials.
The superconductor of any one of the preceding claims that comprises at least one interface between a ferroelectric-superconductor and superconductor.
The superconductor of any one of the preceding claims in which the ferroelectric is Li or Na-based and the superconductors are both Al or Ti or Sn, Li and Al, or Li and Ti or Sn.
The superconductor of any one of the preceding claims in which the ferroelectric is Li or Na-based and the superconductors are HgBa2Ca2Cu3Ox, FeSe, or H2S.
The superconductor of any one of the preceding claims in which the ferroelectric is a composite mixture with a polymer such as a ferroelectric-glue mixture.
The superconductor of any one of the preceding claims in which the dielectric constant εr is higher than 104, higher than 105, higher than 106, higher than 107, higher than 108 or higher than 109 at the interface and at temperatures from −40° C. to 170° C., from −35° C. to 170° C., from 0° C. to 100° C., from 0° C. to 75° C. or room temperature.
Use of the superconductor as defined according to any one of the preceding claims as an energy harvester, energy storage device, part of a sensor, part of a transistor, part of a computer, part of a photovoltaic cell or panel, part of a wind turbine, part of a SQUID, MRI, mass spectrometer, or a particle accelerator, part of a smart grid, electric power transmission, transformers, power storage devices and/or electric motors.
Dependencies are inferred from the claim text.