Preparation and characterization of PVDF-MG49-NH4CF 3SO3 based solid polymer electrolyte

N. Ataollahi, Azizan Ahmad, T. K. Lee, A. R. Abdullah, Mohd Yusri Abd Rahman

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The ionic conductivity of ammonium-based solid polymer films of poly(vinylidene fluoride) (PVDF) blended with MG49, a graft of natural rubber and poly(methyl methacrylate), with various compositions of ammonium triflate NH4CF3SO3, was investigated. As a result, 30 wt.% of NH4CF3SO3-doped polymer electrolyte exhibits the highest ionic conductivity at 6.32 ×; 10-4 S/cm at room temperature. The conductivity enhancement can be attributed to the increase in the number of NH4 + as charge carriers. The significance of the blend is the increase of one order in ionic conductivity as compared with pure PVDF electrolyte. The temperature dependence of conductivity of the electrolyte does not obey the Arrhenius law. However, the conductivity increases with temperature and it reached 1.56 × 10-3 S/cm at 363 K. X-ray diffraction reveals a decrease in crystallinity of the electrolyte upon the addition of NH4CF3SO3 salt. This result is supported by scanning electron microscopy. Linear sweep voltammetry demonstrates that the anodic stability of the electrolyte is up to 4 V. Therefore, the electrolyte shows good compatibility with high-voltage electrode. Hence, this electrolyte system can be a prospective candidate as lithium-ion conducting electrolyte for lithium batteries.

Original languageEnglish
Pages (from-to)115-120
Number of pages6
JournalE-Polymers
Volume14
Issue number2
DOIs
Publication statusPublished - 2014

Fingerprint

vinylidene
Electrolytes
fluorides
Polymers
electrolytes
preparation
polymers
Ionic conductivity
ion currents
Ammonium Compounds
conductivity
Lithium batteries
polyvinylidene fluoride
lithium batteries
Rubber
Polymethyl Methacrylate
Voltammetry
Charge carriers
Polymethyl methacrylates
Lithium

Keywords

  • Blend
  • Ionic conductivity
  • MG49
  • Polymer electrolyte
  • PVDF

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Polymers and Plastics

Cite this

Preparation and characterization of PVDF-MG49-NH4CF 3SO3 based solid polymer electrolyte. / Ataollahi, N.; Ahmad, Azizan; Lee, T. K.; Abdullah, A. R.; Abd Rahman, Mohd Yusri.

In: E-Polymers, Vol. 14, No. 2, 2014, p. 115-120.

Research output: Contribution to journalArticle

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