The Al3+ stabilized phase Li3−3xAlxBO3

The structure of an Al3+ stabilized phase Li3−3xAlxBO3 (image) was determined by means of single crystal X-ray diffraction. This phase crystallizes in space group P6122 or P6522, with lattice constants image, image and image. The unit cell consists of six layers of BO3 groups with Li+ cations distributing statistically on five crystallographic sites, none of which is fully occupied. The Li sites are close to each other and a three-dimensional network results when Li sites only within 1.65 Å are connected. Significant ionic conductivity was observed for this phase.