PREPARATION OF TiO₂ THIN-FILM ELECTRODE ON Li_1+xAl_xTi_2-x(PO₄)₃ SOLID ELECTROLYTE

抄録

Anatase TiO₂ thin-film electrode was prepared on Li_1+xAl_xTi_2-x(PO₄)₃-based (LTP) solid electrolyte bya sol-gel coating method. The prepared thin film was characterized with X-ray diffraction, Raman spectroscopy, and it was confirmed that the thin film consisted of the single phase of anatase TiO₂. The prepared thin film was very flat and crack-free. An electrochemical cell Li/Polymer-gel electrolyte/LTP/TiO₂/Au was fabricated and the electrochemical properties of the TiO₂/LTP were investigated. The Li⁺ ion insertion/extraction into/from the TiO₂ took place reversibly through the solid-solid interface.