title: An Air-Stable Na3 SbS4 Superionic Conductor Prepared by a Rapid and Economic Synthetic Procedure.
abstract: All-solid-state sodium batteries, using solid electrolyte and abundant sodium resources, show great promise for safe, low-cost, and large-scale energy storage applications. The exploration of novel solid electrolytes is critical for the room temperature operation of all-solid-state Na batteries. An ideal solid electrolyte must have high ionic conductivity, hold outstanding chemical and electrochemical stability, and employ low-cost synthetic methods. Achieving the combination of these properties is a grand challenge for the synthesis of sulfide-based solid electrolytes. Design of the solid electrolyte Na3 SbS4 is described, realizing excellent air stability and an economic synthesis based on hard and soft acid and base (HSAB) theory. This new solid electrolyte also exhibits a remarkably high ionic conductivity of 1 mS cm(-1) at 25 °C and ideal compatibility with a metallic sodium anode.
authors.affiliation: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.affiliation: Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.|School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
authors.forename: Zachary D
authors.initials: ZD
authors.lastname: Hood
authors.affiliation: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
authors.forename: Gayatri
authors.initials: G
authors.lastname: Sahu
authors.affiliation: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
authors.forename: Amaresh Samuthira
authors.initials: AS
authors.lastname: Pandian
authors.affiliation: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.|Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
authors.forename: Jong Kahk
authors.initials: JK
authors.lastname: Keum
authors.affiliation: Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
authors.forename: Ke
authors.initials: K
authors.lastname: An
authors.affiliation: Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA. cd_liang@hotmail.com.
authors.forename: Chengdu
authors.initials: C
authors.lastname: Liang
keywords: air-stable materials; hard and soft acid and base theory (HSAB); ionic conductivity; solid-state sodium batteries; synthesis