title: Fluorine-Doped Antiperovskite Electrolyte for All-Solid-State Lithium-Ion Batteries.
abstract: A fluorine-doped antiperovskite Li-ion conductor Li2 (OH)X (X=Cl, Br) is shown to be a promising candidate for a solid electrolyte in an all-solid-state Li-ion rechargeable battery. Substitution of F(-) for OH(-) transforms orthorhombic Li2 OHCl to a room-temperature cubic phase, which shows electrochemical stability to 9 V versus Li(+) /Li and two orders of magnitude higher Li-ion conductivity than that of orthorhombic Li2 OHCl. An all-solid-state Li/LiFePO4 with F-doped Li2 OHCl as the solid electrolyte showed good cyclability and a high coulombic efficiency over 40 charge/discharge cycles.
authors.affiliation: Materials research program and the Texas Materials Institute, University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Yutao
authors.initials: Y
authors.lastname: Li
authors.affiliation: Materials research program and the Texas Materials Institute, University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Weidong
authors.initials: W
authors.lastname: Zhou
authors.affiliation: Materials research program and the Texas Materials Institute, University of Texas at Austin, Austin, TX, 78712, USA.|School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, P.R. China.
authors.forename: Sen
authors.initials: S
authors.lastname: Xin
authors.affiliation: High Pressure Science and Engineering Center, University of Nevada, Las Vegas, NV, 89154, USA.
authors.forename: Shuai
authors.initials: S
authors.lastname: Li
authors.affiliation: High Pressure Science and Engineering Center, University of Nevada, Las Vegas, NV, 89154, USA.
authors.forename: Jinlong
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Center for Integrated Nanotechnologies, Las Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Xujie
authors.initials: X
authors.lastname: Lü
authors.affiliation: Materials research program and the Texas Materials Institute, University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Zhiming
authors.initials: Z
authors.lastname: Cui
authors.affiliation: Center for Integrated Nanotechnologies, Las Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
authors.forename: Quanxi
authors.initials: Q
authors.lastname: Jia
authors.affiliation: Materials research program and the Texas Materials Institute, University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Jianshi
authors.initials: J
authors.lastname: Zhou
authors.affiliation: High Pressure Science and Engineering Center, University of Nevada, Las Vegas, NV, 89154, USA.
authors.forename: Yusheng
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Materials research program and the Texas Materials Institute, University of Texas at Austin, Austin, TX, 78712, USA. jgoodenough@mail.utexas.edu.
authors.forename: John B
authors.initials: JB
authors.lastname: Goodenough
keywords: all-solid-state battery; antiperovskite; lithium-ion battery; solid electrolyte