The structure, lithium ion conductivity and reaction suppression against Li anode of the LaAlO3-La0.57Li0.3TiO3 solid solution

Kai Yun Yang, Kuan Zong Fung

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The structure, lithium ion conductivity and reaction suppression against lithium of the novel xLaAlO3-(1 - x)La0.57Li0.30TiO3 oxides (0 ≤ x ≤ 1) with a perovskite related structure (ABO3) are studied by using X-ray diffraction, ac impedance and digital multimeter. The results show that owing to the geometric environment, consisting of La3+, Li+ and vacancy at A-sites, the conductivities from x = 0 to 20 mol% are maintained in the range of 10-4 S cm-1, and decrease to 8.92 × 10-9 S cm-1 with 30-40 mol% LaAlO3 addition. When the value of x is larger than 50 mol%, the corresponding oxides no longer have the characteristic of ionic conduction. A stable solid electrolyte is also observed to alleviate the reaction significantly when the incorporated LaAlO3 content is 40 mol%.

Original languageEnglish
Pages (from-to)301-306
Number of pages6
JournalJournal of Power Sources
Volume159
Issue number1 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Sep 13

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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