The Al3+ stabilized phase Li3-3xAlxBO3

The structure of an Al3+ stabilized phase Li3-3xAlxBO3 (x approximate to 0.18) was determined by means of single crystal X-ray diffraction. This phase crystallizes in space group P6(1)22 or P6(5)22, with lattice constants a = 4.9019(5) angstrom, = 17.538(2) angstrom and Z = 6. 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 angstrom are connected. Significant ionic conductivity was observed for this phase. (c) 2004 Elsevier Inc. All rights reserved.