Abstract
The Na-β"-Al2O3 solid electrolyte ceramic material was synthesized by a conventional solid-state reaction method with inexpensive industrial alumina as a raw material. The samples were characterized by X-ray diffraction and scanning electron microscopy, and the conductivity of the sample was tested by AC impedance method. The results indicate that the relative content of β"-Al2O3 phase is closely related to the Na content in Na1.67(1+x)Li0.33Al10.67O17 and the synthesis temperature when x=0.15, and the sintering temperature is 1 580℃. The maximum relative content of β"-Al2O3 phase is 97.19%. In this case, the microstructure of ceramics is relatively compact, its conductivity is 0.028 S/cm at 300℃ and the conductance activation energy is 0.259 eV.
| Translated title of the contribution | Synthesis of Na-βʺ-Al2O3 Solid Electrolytes by Solid-state Reaction Method |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 1217-1221 |
| Journal | 硅酸盐学报 / Journal of the Chinese Ceramic Society |
| Volume | 46 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sept 2018 |
Research Keywords
- 固体电解质
- 钠–β"-氧化铝固体电解质
- 离子电导率
- 低成本
- sodium-beta"-alumina solid electrolyte
- ionic conductivity
- Sodium-beta"-alumina solid electrolyte
- low cost