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Na 3 PSe 4 : A Novel Chalcogenide Solid Electrolyte with High Ionic Conductivity
Author(s) -
Zhang Long,
Yang Kun,
Mi Jianli,
Lu Lei,
Zhao Linran,
Wang Limin,
Li Yueming,
Zeng Hong
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201501294
Subject(s) - chalcogenide , ionic conductivity , electrolyte , materials science , conductivity , diffusion , ionic bonding , fast ion conductor , ion , ionic liquid , analytical chemistry (journal) , computer science , nanotechnology , chemistry , thermodynamics , optoelectronics , physics , organic chemistry , electrode , catalysis
A new Na 3 PSe 4 compound is synthesized and exhibits a large cell parameter of 7.3094 Å, thereby providing 3D channels that are optimal for Na ion diffusion. Na 3 PSe 4 has the highest ionic conductivity reported for chalcogenides so far, with a value of over 1 mS cm −1 at room temperature and a low activation energy of 0.21 eV.