Vacancy‐Contained Tetragonal Na3SbS4 Superionic Conductor. Issue 10 (23rd April 2016)

• Record Type: Journal Article
• Authors: Zhang, Long; Zhang, Dechao; Yang, Kun; Yan, Xinlin; Wang, Limin; Mi, Jianli; Xu, Bo; Li, Yueming
• Is Part Of: Advanced science. Volume 3:Issue 10(2016:Oct.)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-04-23
• Subjects: chalcogenide -- sodium batteries -- sodium superionic conductors -- solid electrolytes -- sulfides; Science -- Periodicals; 505
• DOI: 10.1002/advs.201600089
• Languages: English
• ISSNs: 2198-3844

Abstract

Abstract : Tetragonal Na3 SbS4 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.