Abstract
La0.56-yLi0.33TiO3-3yF3y (y = 0.017, 0.05) were prepared by a conventional solid-state reaction from a mixture of La2O3, LiCO3, TiO2, and 10% excess LiF. The variation of the lattice parameter with increase of y value in La0.56-yLi0.33TiO3-3yF3y was different from that in conventional lithium-lanthanum-titanate series perovskite oxides, La0.56-yLi0.33+3yTiO3. Bulk Li-ion conductivities of the La0.56-yLi0.33TiO3-3yF3y are higher than those of La0.56-yLi0.33+3yTiO3. Li-ion conductivity of La0.56-yLi0.33TiO3-3yF3y (y = 0.017) was 2.30 × 10-3 S cm-1 at 30 °C, which is, to our knowledge, one of the highest Li-ion conductivities in the oxide compounds.
| Original language | English |
|---|---|
| Pages (from-to) | 536-538 |
| Number of pages | 3 |
| Journal | Journal of Power Sources |
| Volume | 189 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2009 Apr 1 |
Keywords
- Li-ion conductor
- Perovskite structure
- Solid-state electrolyte
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering
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Cite this
Okumura, T., Yokoo, K., Fukutsuka, T., Uchimoto, Y., Saito, M., & Amezawa, K. (2009). Improvement of Li-ion conductivity in A-site disordering lithium-lanthanum-titanate perovskite oxides by adding LiF in synthesis. Journal of Power Sources, 189(1), 536-538. https://doi.org/10.1016/j.jpowsour.2008.10.056