| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Ceramics for a New Generation of Nuclear Energy Systems and Applications
|
| Presentation Title |
J-1: Development and Characterization of Ga/Ta Doped Li7La3Zr2O12 for Direct LiT Electrolysis |
| Author(s) |
Rahul Rajeev, Shraddha Jadhava, Brenda Garcia-Diaz, Christopher Dandeneau, Dale Hitchcock, Kyle Brinkman |
| On-Site Speaker (Planned) |
Rahul Rajeev |
| Abstract Scope |
Li7La3Zr2O12(LLZO) has proven to be an excellent material for all-solid-state battery electrolytes with good stability and ionic conductivity. In this work, LLZO is being developed for use in a direct lithium tritide (LiT) electrolysis process for hydrogen isotope extraction from Lead Lithium (Li-Pb) blanket in a nuclear fusion reactor. Three different routes were used to synthesize phase pure LLZO with the addition of aliovalent dopants Gallium (Ga) and Tantalum (Ta) used to stabilize the high conducting cubic LLZO phase. The stability was studied by immersing LLZO powders and sintered pellets in the Li-Pb blanket material at 450oC in an inert environment for several hours. Post exposure characterization tests were performed including powder X-ray diffraction(PXRD) Rietveld analysis, transmission electron microscopy (TEM), and energy dispersive X-Ray (EDX) analysis to detect potential phase degradation. |