Premium
Exceptionally High Ionic Conductivity in Na 3 P 0.62 As 0.38 S 4 with Improved Moisture Stability for Solid‐State Sodium‐Ion Batteries
Author(s) -
Yu Zhaoxin,
Shang ShunLi,
Seo JooHwan,
Wang Daiwei,
Luo Xiangyi,
Huang Qingquan,
Chen Shuru,
Lu Jun,
Li Xiaolin,
Liu ZiKui,
Wang Donghai
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201605561
Subject(s) - materials science , moisture , conductivity , ionic conductivity , ion , electrolyte , sodium , analytical chemistry (journal) , chemical engineering , inorganic chemistry , composite material , chemistry , metallurgy , chromatography , organic chemistry , electrode , engineering
A Na‐ion solid‐state electrolyte, Na 3 P 0.62 As 0.38 S 4 , is developed with an exceptionally high conductivity of 1.46 mS cm –1 at 25 °C and enhanced moisture stability. Dual effects of alloying element As (lattice expansion and a weaker AsS bond strength) are responsible for the superior conductivity. Improved moisture stability is regulated by shifting low‐energy moisture reactions to high‐energy ones due to As.