Crystal Structure of High-Temperature Phase of Lithium Ionic Conductor, Li3PS4

被引：49

作者：

Homma, Kenji ^{[1
]}

Yonemura, Masao ^{[2
]}

Nagao, Miki ^{[1
]}

Hirayama, Masaaki ^{[1
]}

Kanno, Ryoji ^{[1
]}

机构：

[1] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Engn, Dept Elect Chem, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[2] Ibaraki Univ, Grad Sch Sci & Engn, Inst Appl Beam Sci, Hitachi, Ibaraki 3168511, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2010年 / 79卷

基金：

日本学术振兴会;

关键词：

lithium ionic conductor; lithium solid electrolyte; thio-LISICON; Lithium phosphorus sulfide; Li3PS4; crystal structure; THIO-LISICON; SULFIDES;

D O I：

10.1143/JPSJS.79SA.90

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Crystal structure of the high-temperature phase of lithium ionic conductor, Li3PS4, was determined using high-temperature synchrotron X-ray diffraction data. Li3PS4 belongs to the thio-LISICON (Lithium Super Ionic CONductor) family and shows high ionic conductivity above 500 K. The high-temperature alpha phase with space group, Pbcn(60), has an orthorhombic cell parameter, a = 8.6125(2) angstrom, b = 9.0211(2) angstrom, and c = 8.42621(2) angstrom at 906 K. The PS4 tetrahedra are isolated with each other and form an alternating T+ row and T- row, where T+ and T- indicate that the apex of the tetrahedra is up and down, respectively. These PS4 arrangements are different from those of the medium temperature beta-phase and the low-temperature gamma-phase.

引用

页数：4

共 15 条

[1] THE CRYSTAL-STRUCTURE OF LI3.75SI0.75P0.25O4 AND IONIC-CONDUCTIVITY IN TETRAHEDRAL STRUCTURES [J].