Abstract
In the present study, Li6.5−3xGaxLa3Zr1.5Bi0.5O12 (0 ≤ x ≤ 0.3) ceramics were obtained by the sol–gel method. Then, the influences of Ga contents on the crystal structure, micromorphology, and ionic conductivity of the above ceramics were systematically studied by X-ray diffraction, scanning electron microscopy, and impedance spectroscopy. Our results show that all samples appear to be in cubic phase. Suitably doping Ga contents (x = 0.1) promoted the densification of ceramics with relative density of 93.5% and improved ionic conductivity of 1.7 × 10−4 S cm−1. This finding on improved ionic conductivity can be attributed to the enhanced densification and occupation of the octahedral 96 h site.
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