- Tytuł:
- Stability of Garnet-Type Li7La3Zr2O12-Based Ceramics for All-Solid-State Batteries
- Autorzy:
-
Yi, Eun-Jeong
Yoon, Keun-Young
Jung, Hyun-Ah
Hwang, Haejin - Powiązania:
- https://bibliotekanauki.pl/articles/355988.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
all-solid-state batteries
solid electrolytes
garnet type ceramics
ionic conductivity - Opis:
- Al and Nb-doped Li7 La3 Zr2O12 (LLZO) and W-doped LLZO lithium ion conducting electrolyte samples were prepared and their H2O stability was investigated. The LLZO samples were exposed to 50% humidified air for 48 h. After H2O exposure, a cubic to tetragonal transformation occurred and acquired SEM images exhibited the presence of reaction phases at the grain boundaries of Al and Nb-LLZO. As a result, the lithium ion conductivity significantly decreased after H2O exposure. On the contrary, W-LLZO showed good stability against H2O. Although the cubic to tetragonal transformation was also observed in H2O-exposed W-LLZO, the decrease in lithium ion conductivity was found to be modest. No morphological changes of the W-LLZO samples were confirmed in the H2O-exposed W-LLZO samples.
- Źródło:
-
Archives of Metallurgy and Materials; 2019, 64, 2; 579-583
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł