Crystal Structure of Li7P3S11Studied by Neutron and Synchrotron X-ray Powder Diffraction

Abstract

Time-of-flight neutron powder diffraction (TOF-NPD) and synchrotron X-ray powder diffraction (SXPD) experiments were carried out to study the crystal structure of 7 Li isotope enriched 7 Li 7 P 3 S 11 glass ceramics, which is a lithium superionic conductor. Combined X-ray/neutron Rietveld refinement informed us precise atomic coordinates, especially lithium. Furthermore, a network of neighboring Li + cations was visualized in the crystal structure of Li 7 P 3 S 11 with the triclinic system (space group: P 1 ) in order to predict the diffusion pathway of Li + cations.