Integrated additive manufacturing and laser processing systems and methods for ceramic, glass, and silicon carbide applications

Patent metadata

Field	Value
Publication number	US-12053906-B2
Application number	US-202017138173-A
Country	US
Kind code	B2
Filing date	Dec 30, 2020
Priority date	Dec 31, 2019
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

A method for fabricating a protonic ceramic energy device includes: coating an electrolyte layer on an anode layer; and densifying the electrolyte layer by a rapid laser reactive sintering (RLRS) process on the electrolyte layer and/or the anode layer to form a half-cell comprising a dense electrolyte and a porous anode.

First claim

What is claimed is:

1. A method for fabricating a protonic ceramic energy device, the method comprising:
coating an electrolyte layer on an anode layer; and
densifying the electrolyte layer by a rapid laser reactive sintering (RLRS) process on the electrolyte layer and/or the anode layer to form a half-cell comprising a dense electrolyte and a porous anode,
the method further comprising depositing a cathode layer on the electrolyte layer or the dense electrolyte.

2. The method of claim 1 further comprising treating the half-cell and cathode layer in a furnace to form a single cell comprising the dense electrolyte, the porous anode, and a porous cathode.

3. The method of claim 1 wherein the RLRS process comprises a one-step tri-sintering of the anode layer, the electrolyte layer, and the cathode layer to form a single cell.

4. The method of claim 1 wherein the RLRS process comprises a one-step co-sintering of the anode layer and the electrolyte layer.

5. The method of claim 1 wherein the RLRS process is carried out using a CO 2 laser.

6. The method of claim 1 further comprising preheating the anode layer and the electrolyte layer before the RLRS process.

7. The method of claim 1 wherein the porous anode comprises a nanoporous anode.

8. The method of claim 1 wherein the anode layer comprises a pre-sintered anode.

9. The method of claim 1 wherein the RLRS process allows for the rapid manufacturing of the half-cell with desired crystal structure, microstructure, and thickness.

10. A method for manufacturing at least one component for a protonic ceramic energy device, the method comprising:
depositing a precursor on a build surface; and
rapid laser reactive sintering the precursor to form the at least one component, wherein the at least one component comprises at least one of a dense electrolyte, a porous electrode/electrode scaffold, and a dense interconnect,
wherein the precursor comprises an electrolyte precursor, and the build surface comprises an anode or an anode precursor.

11. The method of claim 10 , wherein the formed at least one component comprises a half-cell comprising a porous anode and the dense electrolyte.

12. The method of claim 11 wherein the rapid laser reactive sintering comprises rapid laser reactive sintering the anode precursor and the electrolyte precursor in a single step to form the half-cell.

13. The method of claim 10 ,
wherein the method further comprises depositing a cathode precursor on the electrolyte precursor, and the formed at least one component comprises a single cell comprising the anode, the dense electrolyte, and a porous cathode, and
wherein the rapid laser reactive sintering comprises rapid laser reactive sintering the anode precursor, the electrolyte precursor, and the cathode precursor in a single step to form the single cell.

14. A method for fabricating a protonic ceramic component for a protonic ceramic energy device using an integrated additive manufacturing and laser processing system, the method comprising:
extruding a plurality of layers of paste in a layer-by-layer construction;
after extruding each layer of paste, drying said layer of paste to form a green component; and
sintering the green component to form the protonic ceramic component,
the method further comprising laser machining the green component,
wherein the laser machining is for polishing the green component and/or for creating a complex geometry for the green component, and
wherein laser machining the green component comprises cutting each layer during the layer-by-layer construction to create the complex geometry.

15. The method of claim 14 wherein the complex geometry is one of a pellet, a cylinder, a cone, a ring, a bottom-closed straight tube, a top-closed straight tube, and a lobed tube.

16. The method of claim 14 wherein the drying step is carried out using a CO2 laser, the sintering step is carried out using a rapid laser reactive sintering (RLRS) process, and/or the laser machining step is carried out using a picosecond laser.

Assignees

• Univ Clemson Res Foundation

Inventors

• Xiao Hai
• Tong Jianhua
• Peng Fei
• Brinkman Kyle S
• Mu shenglong
• Lei Jincheng
• Hong Yuzhe
• Huang Hua
• Bordia Rajendra

Classifications

• B33Y40/20

  Post-treatment, e.g. curing, coating or polishing · CPC title

• B23K26/402

  involving non-metallic material, e.g. isolators · CPC title

• C03B19/01

  by progressive fusion {or sintering} of powdered glass onto a shaping substrate, i.e. accretion {, e.g. plasma oxidation deposition (making fibre preforms C03B37/01291)} · CPC title

• B23K2103/52

  Ceramics · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title