Internal current collection structure of thermal to electric converting cell and manufacturing method of the same

Patent metadata

Field	Value
Publication number	US-9666377-B2
Application number	US-201313961911-A
Country	US
Kind code	B2
Filing date	Aug 8, 2013
Priority date	Jul 3, 2013
Publication date	May 30, 2017
Grant date	May 30, 2017

Abstract

Disclosed is an internal current collection structure of a tubular thermal to electric converting cell including an internal electrode, a solid electrolyte and an external electrode. The internal current collection structure includes: a first current collector which closely contacts with the internal electrode of the tubular thermal to electric converting cell; a second current collector which fixes the first porous current collector to the inside of the tubular thermal to electric converting cell and causes the first current collector to be in close contact with the internal electrode; and a lead wire which is a conductive medium and is located between the first current collector and the second current collector.

First claim

What is claimed is:

1. An apparatus comprising:
an electric converting cell comprising an internal electrode, a solid electrolyte, and an external electrode; and
an internal collection structure comprising a first collector, a second collector, and a lead wire, the second collector comprising a plurality of holes therein;
the second collector disposed within a perimeter of the first collector, the entire circumference of the second collector being disposed within the inside circumference of the first collector, and the first collector contacting with the internal electrode; and
the lead wire disposed between the first collector and the second collector, the lead wire being fastened to one of the holes of the second collector.

2. The apparatus of claim 1 , wherein the first collector has a porous structure and comprises at least any one selected from the group of consisting of Ni, Ta, Mo, Ti, W, Cu, Fe, Cr, Au, Ag, Pt, Al, Mn, Hg, Ar, Sn, Zn, Li, Pd, V, C, Ge, Rh and Ir.

3. The apparatus of claim 1 , wherein the second current collector comprises at least any one selected from the group consisting of Ni, Ta, Mo, Ti, W, Cu, Fe, Cr, Au, Ag, Pt, Al, Mn, Hg, Ar, Sn, Zn, Li, Pd, V, C, Ge, Rh and Ir.

4. The apparatus of claim 1 , wherein the second collector is made of a metal having characteristic of elasticity and conductivity, wherein the second collector is closely disposed within the inside perimeter of the first collector.

5. The apparatus of claim 1 , wherein the solid electrolyte comprises any one of beta-alumina solid electrolyte and Na super-ionic conductor (NASICON) solid electrolyte.

6. The apparatus of claim 1 , wherein the internal electrode and the external electrode comprise at least any one selected from the group consisting of Mo, Ni, Al, PtW, RhW, TiC, TiN, SiN, RuO, Ru.sub.2O, and Rh.sub.2W.

7. The apparatus of claim 1 , further comprising:
a tubular metal support, wherein
the internal electrode is disposed on an inner surface of the metal support,
the solid electrolyte is disposed on an outer surface of the metal support, and the external electrode is disposed on a surface of the solid electrolyte.

8. The apparatus of claim 1 , wherein
a joiner is disposed under the external electrode for insulation and sealing.

9. The apparatus of claim 8 , wherein the joiner has both open sides allowing air to pass therethrough and has a cylindrical shape with an empty interior.

10. The apparatus of claim 8 , wherein the joiner comprises an insulating portion and a metal tube.

11. The apparatus of claim 10 , wherein the insulating portion comprises at least any one of alpha alumina, anodized metal, and enamel coated metal.

12. The apparatus of claim 10 , wherein the insulating portion is joined by using at least any one of a welding method, an O-ring method, and a brazing method.

Assignees

• Korea Energy Research Inst

Inventors

• Kim Sun-Dong
• Woo Sang-Kuk
• Kim Se-Young
• Joo Jong-Hoon
• Han In-Sub
• Seo Doo-Won
• Suh Min-Soo

Classifications

• H02N3/00

  Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom (discharge tubes functioning as thermionic generators H01J45/00) · CPC title

• Y10T29/417

  Cross-Sectional Technologies · mapped topic

• H01G9/21 Primary

  Temperature-sensitive devices · CPC title

• H10N10/17 Primary

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