Improving ionic conductivity by Mg-doping of A2SnO3 (A = Li+, Na+)
作者: I. Blazquez-AlcoverG. RousseD. Alves Dalla CorteJ.C. BadotA. GrimaudP. RozierJ.M. Tarascon
作者单位: 1Collège de France, Chaire de Chimie du Solide et de l'Energie, UMR 8260, 11 place Marcelin Berthelot, 75231 Paris Cedex 05, France
2Sorbonne Universités, UPMC Univ Paris 06, 4 place Jussieu, F-75005 Paris, France
3Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
4Réseau sur le Stockage Electrochimique de l'Energie (RS2E), FR CNRS 3459, France
5University of Toulouse III Paul Sabatier, CIRIMAT, CNRS, UMR 5085, 31062, Toulouse Cedex 09, France
刊名: Solid State Ionics, 2017, Vol.308 , pp.16-21
来源数据库: Elsevier Journal
DOI: 10.1016/j.ssi.2017.05.013
关键词: Ionic conductivitySolid electrolytesAll-solid-state batteriesLayered oxidesNeutron diffraction
英文摘要: Abstract(#br)The search for Li ions conducting ceramics is burgeoning, owing to the regain interest for solid state batteries. Here we investigate the effect of Mg substitutions on the ionic conductivity of the A 2 SnO 3 (A=Li, Na) phases. Pure A 1.8 Mg 0.1 SnO 3 and A 2.2 Mg 0.1 Sn 0.9 O 3 were structurally characterized and their ionic conductivity was measured by AC impedance spectroscopy. We show a decrease of the activation energy with increasing the Mg substitution and found ionic conductivities three and two orders of magnitude higher for Li 2.2 Mg 0.1 Sn 0.9 O 3 and Na 1.8 Mg 0.1 SnO 3 as compared to pristine Li 2 SnO 3 and Na 2 SnO 3 , respectively. Neutron diffraction was used to determine the Mg localization in the crystal structure and to...
全文获取路径: Elsevier  (合作)
影响因子:2.046 (2012)

  • conductivity 传导率
  • Li 
  • Na 
  • ionic 离子的
  • diffraction 衍射
  • doping 掺杂
  • state 状态
  • solid 固体