Developing lithiated polyvinyl formal based single-ion conductor membrane with a significantly improved ionic conductivity as solid-state electrolyte for batteries
作者: Hongnan ZhangFang LianLijuan BaiNan MengChunzhong Xu
作者单位: 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
刊名: Journal of Membrane Science, 2018, Vol.552 , pp.349-356
来源数据库: Elsevier Journal
DOI: 10.1016/j.memsci.2018.02.032
关键词: Ionic conductivityLithium ion batterySingle-ion conductorSolid-state electrolyte
原始语种摘要: Abstract(#br)A novel lithiated polyvinyl formal single-ion conductor (Li-PVFM) membrane has been proposed and prepared as polymer electrolyte for Li-ion batteries with excellent mechanical strength of 11–34 MPa and good thermal stability, but the series faces the common issue of solid-state electrolyte - a low ionic conductivity about 10 −6 S cm −1 at room temperature. Herein, by purifying the polymer matrix to avoid the negative effect of the impurities on Li + diffusion, and linking more Li + from lithium bis(trifluoromethanesulfonyl) imide (LiTFSI) on the matrix to improve the carrier concentration, the as obtained solid-state electrolyte membrane exhibits a significantly improved ambient ionic conductivity in two orders of magnitude to 10 −4 S cm −1 . The results confirm that the...
全文获取路径: Elsevier  (合作)
影响因子:4.093 (2012)

  • conductor 导线
  • conductivity 传导率
  • electrolyte 电解液
  • improved 改进
  • single 单独的
  • membrane 
  • ionic 离子的
  • polyvinyl 聚乙烯
  • formal 形式的
  • state 状态