Scalable radioisotope power tiles

Patent metadata

Field	Value
Publication number	US-12327650-B2
Application number	US-202217864864-A
Country	US
Kind code	B2
Filing date	Jul 14, 2022
Priority date	Jul 14, 2022
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

Scalable radioisotope power tiles that can provide heat, electrical power, or both, are disclosed. Unlike conventional radioisotope thermoelectric generator (RTG) designs, the scalable radioisotope power tiles do not necessarily seek to minimize the RTG surface area. Rather, a planar design may be used to maximize the radiative surface to increase the temperature difference (ΔT) and increase system heat to electricity conversion efficiency where electrical power generation is desired. In addition, such a planar design can be one-sided or two-sided, allowing for flexibility in design. For instance, such power tiles may be deployed in a material like a solar sail, on the surface of a vehicle, in terrestrial systems, etc.

First claim

The invention claimed is:

1. A radioisotope power tile, comprising:
a tile body;
one or more radioisotope power units located within the tile body; and
one or more radiator surfaces operably connected to at least one of the one or more radioisotope power units, wherein
the one or more radiator surfaces constitute respective surfaces of the radioisotope power tile.

2. The radioisotope power tile of claim 1 , wherein the one or more radioisotope power units comprise CoSb 3 , LaFe 4 Sb 12 , Fe 3 CoSb 12 , CsBi 4 Te 6 , Bi 0.5 Sb 1.5 Te 3 , or any combination thereof.

3. The radioisotope power tile of claim 1 , wherein the radioisotope power unit is located on a surface of or within a vehicle, on a surface of or within an internal component of the vehicle, or on a surface of or within an internal component of the vehicle.

4. The radioisotope power tile of claim 1 , wherein a local temperature provided by the radioisotope power tile is between 20° C. and 100° C.

5. The radioisotope power tile of claim 1 , wherein the one or more radioisotope power units comprise:
a radioisotope unit comprising one or more radioisotopes;
one or more hot shoes operably connected to the radioisotope unit;
one or more cold shoes; and
a plurality of thermal junctions operably connecting the one or more hot shoes to the one or more cold shoes.

6. The radioisotope power tile of claim 5 , wherein the radioisotope unit is clad in a metal, the metal comprising Pt, Pd, Os, W, or any combination thereof, that captures radiation from the one or more radioisotopes and converts the radiation into heat.

7. The radioisotope power tile of claim 5 , wherein the one or more cold shoes are each thermally connected to a radiator surface of the one or more radiator surfaces.

8. The radioisotope power tile of claim 1 , wherein the tile body comprises an insulator, an aerogel, multilayer insulation (MLI), or any combination thereof.

9. The radioisotope power tile of claim 1 , further comprising:
one or more electronic or mechanical components within the tile body.

10. The radioisotope power tile of claim 9 , wherein a component of the one or more components is configured to receive heat from a radioisotope of at least one of the one or more radioisotope power units.

11. The radioisotope power tile of claim 9 , wherein
the tile body comprises insulation, and
a component of the one or more components is insulated from heat from a radioisotope of at least one of the one or more radioisotope power units by insulation of the tile body.

12. The radioisotope power tile of claim 1 , wherein
the radioisotope power tile is operably connected to a vehicle, and
the radioisotope power tile is configured to supply power and heat to one or more components of the vehicle that are otherwise separated from a main power system of the vehicle.

13. The radioisotope power tile of claim 1 , wherein
the radioisotope power tile is operably connected to one or more components of a vehicle that are separated from a main body of the vehicle, and
the radioisotope power tile is configured to supply power and heat to the one or more separated components.

14. A radioisotope power tile, comprising:
one or more radioisotope power units; and
one or more radiator surfaces operably connected to at least one of the one or more radioisotope power units, wherein
the one or more radiator surfaces constitute respective surfaces of the radioisotope power tile.

15. The radioisotope power tile of claim 14 , wherein the one or more radioisotope power units comprise CoSb 3 , LaFe 4 Sb 12 , Fe 3 CoSb 12 , CsBi 4 Te 6 , Bi 0.5 Sb 1.5 Te 3 , or any combination thereof.

16. The radioisotope power tile of claim 14 , wherein the radioisotope power unit is located on a surface of or within a vehicle, on a surface of or within an internal component of the vehicle, or on a surface of or within an internal component of the vehicle.

17. The radioisotope power tile of claim 14 , wherein the one or more radioisotope power units comprise:
a radioisotope unit comprising one or more radioisotopes;
one or more hot shoes operably connected to the radioisotope unit;
one or more cold shoes; and
a plurality of thermal junctions operably connecting the one or more hot shoes to the one or more cold shoes.

18. The radioisotope power tile of claim 17 , wherein the radioisotope unit is clad in a metal, the metal comprising Pt, Pd, Os, W, or any combination thereof, that captures radiation from the one or more radioisotopes and converts the radiation into heat.

19. The radioisotope power tile of claim 17 , wherein the one or more cold shoes are each thermally connected to a radiator surface of the one or more radiator surfaces.

20. The radioisotope power tile of claim 14 , further comprising:
a tile body comprising the one or more radioisotope power units and the one or more radiator surfaces.

21. The radioisotope power tile of claim 20 , further comprising:
one or more electronic or mechanical components within the tile body.

22. The radioisotope power tile of claim 21 , wherein a component of the one or more components is configured to receive heat from a radioisotope of at least one of the one or more radioisotope power units.

23. The radioisotope power tile of claim 21 , wherein
the tile body comprises insulation, and
a component of the one or more components is insulated from heat from a radioisotope of at least one of the one or more radioisotope power units by insulation of the tile body.

24. The radioisotope power tile of claim 14 , wherein
the radioisotope power tile is operably connected to a vehicle, and
the radioisotope power tile is configured to supply power and heat to one or more components of the vehicle that are otherwise separated from a main power system of the vehicle.

25. The radioisotope power tile of claim 14 , wherein
the radioisotope power tile is operably connected to one or more components of a vehicle that are separated from a main body of the vehicle, and
the radioisotope power tile is configured to supply power and heat to the one or more separated components.

26. A radioisotope power tile, comprising:
a tile body;
one or more radioisotope power units located within the tile body; and
one or more radiator surfaces operably connected to at least one of the one or more radioisotope power units, wherein
the one or more radioisotope power units comprise:
a radioisotope unit comprising one or more radioisotopes,
one or more hot shoes operably connected to the radioisotope unit,
one or more cold shoes, and
a plurality of thermal junctions operably connecting the one or more hot shoes to the one or more cold shoes,

the one or more cold shoes are each thermally connected to a radiator surface of the one or more radiator surfaces, and
the one or more radiator surfaces constitute respective surfaces of the radioisotope power tile.

27. The radioisotope power tile of claim 26 , wherein the one or more radioisotope power units comprise CoSb 3 , LaFe 4 Sb 12 , Fe 3 CoSb 12 , CsBi 4 Te 6 , Bi 0.5 Sb 1.5 Te 3 , or any combination thereof.

28. The radioisotope power tile of claim 26 , wherein the radioisotope power unit is located on a surface of or within a vehicle, on a surface of or within an internal component of the vehicle, or on a surface of or within an internal component of the vehic

Assignees

• Aerospace Corp

Inventors

• Nemanick Eric Joseph
• Helvajian Henry
• Delgado Jr Adon
• Ferrone Kristine L

Classifications

• H10N10/17

  characterised by the structure or configuration of the cell or thermocouple forming the device · CPC title

• H10N19/101

  Multiple thermocouples connected in a cascade arrangement · CPC title

• B64G1/50

  for temperature control · CPC title

• B64G1/422

  Nuclear power generation · CPC title

• G21H1/103 Primary

  Cells provided with thermo-electric generators · CPC title