title: Exceptionally High Ionic Conductivity in Na3P0.62As0.38S4with Improved Moisture Stability for Solid-State Sodium-Ion Batteries.
abstract: A Na-ion solid-state electrolyte, Na3P0.62As0.38S4, is developed with an exceptionally high conductivity of 1.46 mS cm-1at 25 °C and enhanced moisture stability. Dual effects of alloying element As (lattice expansion and a weaker AsS 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.
authors.affiliation: Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Zhaoxin
authors.initials: Z
authors.lastname: Yu
authors.affiliation: Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Shun-Li
authors.initials: SL
authors.lastname: Shang
authors.affiliation: Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Joo-Hwan
authors.initials: JH
authors.lastname: Seo
authors.affiliation: Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Daiwei
authors.initials: D
authors.lastname: Wang
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL, 60439, USA.
authors.forename: Xiangyi
authors.initials: X
authors.lastname: Luo
authors.affiliation: Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Qingquan
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Shuru
authors.initials: S
authors.lastname: Chen
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL, 60439, USA.
authors.forename: Jun
authors.initials: J
authors.lastname: Lu
authors.affiliation: Energy & Environment Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Zi-Kui
authors.initials: ZK
authors.lastname: Liu
authors.affiliation: Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
authors.forename: Donghai
authors.initials: D
authors.lastname: Wang
keywords: all-solid-state battery; first-principles calculations; sodium-ion conductor; solid-state electrolyte; sulfide