Open AccessVacancy‐Contained Tetragonal Na 3 SbS 4 Superionic Conductor
Author(s) -
Zhang Long,
Zhang Dechao,
Yang Kun,
Yan Xinlin,
Wang Limin,
Mi Jianli,
Xu Bo,
Li Yueming
Publication year - 2016
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201600089
Subject(s) - tetragonal crystal system , vacancy defect , materials science , conductor , fast ion conductor , crystallography , chemistry , crystal structure , composite material , electrolyte , electrode
Tetragonal Na 3 SbS 4 is synthesized as a new sodium superionic conductor. The discovery of Na vacancies experimentally verifies previous theoretical predictions. Na vacancies, distorted cubic sulphur sublattices and large Na atomic displacement parameters lead to the ionic conductivity as high as 3 mS cm −1 , a value significantly higher than those of state‐of‐the‐art sodium sulfide electrolytes.