抄録
The crystal structure and lithium ion conductivity of La1/3-xLi3xTaO3 solid solutions with the A-site deficient perovskite structure have been studied. Single phase solid solutions were obtained in the range of x=0 to 1/6. Change from tetragonal to cubic structure and decrease in the lattice volume were observed with increasing the x value. The maximum conductivity obtained was 7×10-3S·-1 at x=0.06. The composition-dependence on the carrier concentration was calculated and compared with conductivity data.
