Crystal Structure of Garnet-Related Li-Ion Conductor Li_7-3x Ga _x La₃Zr₂O₁₂: Fast Li-Ion Conduction Caused by a Different Cubic Modification?

ABSTRACT: Li-oxide garnets such as Li₇La₃Zr₂O₁₂ (LLZO) are among the most promising candidates for solid-state electrolytes to be used in next-generation Li-ion batteries. The garnet-structured cubic modification of LLZO, showing space group Ia-3d, has to be stabilized with supervalent cations. LLZO stabilized with Ga³⁺ shows superior properties compared to LLZO stabilized with similar cations; however, the reason for this behavior is still unknown. In this study, a comprehensive structural characterization of Ga-stabilized LLZO is performed by means of single-crystal X-ray diffraction. Coarse-grained samples with crystal sizes of several hundred micrometers are obtained by solid-state reaction. Single-crystal X-ray diffraction res

SUBMITTER: Wagner R 

PROVIDER: S-EPMC4806310 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature