Improvement of Li-ion conductivity in A-site disordering lithium-lanthanum-titanate perovskite oxides by adding LiF in synthesis

Toyoki Okumura, Koji Yokoo, Tomokazu Fukutsuka, Yoshiharu Uchimoto, Morihiro Saito, Koji Amezawa

研究成果: Article査読

21 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)536-538
ページ数3
ジャーナルJournal of Power Sources
189
1
DOI
出版ステータスPublished - 2009 4月 1

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学

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