title: Li-Ion Conduction and Stability of Perovskite Li3/8Sr7/16Hf1/4Ta3/4O3.
abstract: A solid Li-ion conductor with a high room temperature Li-ion conductivity and small interfacial resistance is required for its application in next-generation Li-ion batteries. Here, we prepared a cubic perovskite-related oxide with the general formula Li3/8Sr7/16Hf1/4Ta3/4O3 (LSHT) by a conventional solid-state reaction method, which was studied by X-ray diffraction, electrochemical impedance spectroscopy, and (7)Li MAS NMR. Li3/8Sr7/16Hf1/4Ta3/4O3 has a high Li-ion conductivity of 3.8 × 10(-4) S cm(-1) at 25 °C and a low activation energy of 0.36 eV in the temperature range 298-430 K. It exhibits both high stability and small interfacial resistance with commercial organic liquid electrolytes, which makes it promising as a separator in Li-ion batteries.
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P.R. China.|School of Material Science and Engineering, Jiangxi University of Science and Technology , Ganzhou 341000, Jiangxi, P.R. China.
authors.forename: Bing
authors.initials: B
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, P.R. China.
authors.forename: Biyi
authors.initials: B
authors.lastname: Xu
authors.affiliation: Materials Research Program and the Texas Materials Institute, ETC9.184, University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Yutao
authors.initials: Y
authors.lastname: Li
authors.affiliation: Materials Research Program and the Texas Materials Institute, ETC9.184, University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Weidong
authors.initials: W
authors.lastname: Zhou
authors.affiliation: Materials Research Program and the Texas Materials Institute, ETC9.184, University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Ya
authors.initials: Y
authors.lastname: You
authors.affiliation: School of Material Science and Engineering, Jiangxi University of Science and Technology , Ganzhou 341000, Jiangxi, P.R. China.|Materials Research Program and the Texas Materials Institute, ETC9.184, University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: Shengwen
authors.initials: S
authors.lastname: Zhong
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University , Beijing 100084, P.R. China.
authors.forename: Chang-An
authors.initials: CA
authors.lastname: Wang
authors.affiliation: Materials Research Program and the Texas Materials Institute, ETC9.184, University of Texas at Austin , Austin, Texas 78712, United States.
authors.forename: John B
authors.initials: JB
authors.lastname: Goodenough
keywords: Li-ion batteries; Li-ion conductor; interfacial resistance; perovskite; solid oxide electrolyte