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Ionic conductivity enhancement in gel polymer electrolyte membrane with N-methyl-N-butyl-piperidine-bis(trifluoromethylsulfonyl) imide ionic liquid for lithium ion battery

  • Y. Ma
  • , L. B. Li
  • , G. X. Gao
  • , X. Y. Yang
  • , J. You
  • , P. X. Yang
  • Harbin University of Science and Technology
  • Harbin Institute of Technology

科研成果: 期刊稿件文章同行评审

46 引用 (Scopus)

摘要

A novel gel polymer electrolyte (GPE) based on polyvinylidene fluoride (PVdF) and polyvinyl alcohol (PVA) with reliable electrochemical performance, mechanical robustness and safety features is prepared by a casting method. The physical, electrochemical and thermal properties of the casting membrane are characterized by scanning electron microscopy (SEM), atomic force microscope (AFM), thermal gravimetric analysis (TG), alternating-current (AC) impedance and charge-discharge techniques. The resulting polymer membrane shows a high ionic conductivity of 1.19 × 10-3 S/cm with 45.5 wt% of ionic liquid (IL) content while the cell assembled with PVdF/PVA/IL electrolyte delivers better electrochemical stability and higher discharge capacity than that without IL, and the thermal stability is obtained compared to conventional liquid electrolytes.

源语言英语
页(从-至)130-138
页数9
期刊Colloids and Surfaces A: Physicochemical and Engineering Aspects
502
DOI
出版状态已出版 - 5 8月 2016
已对外发布

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    可持续发展目标 7 经济适用的清洁能源

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