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Properties of Gel Polymer Electrolyte Based Poly(Vinylidine Fluoride-сo-Hexafluoropropylene) (PVdF-HFP), Lithium Perchlorate (LiClO4) and 1-Butyl-3-Methylimmidazoliumhexafluorophosphate [PF6]
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Properties of Gel Polymer Electrolyte Based Poly(Vinylidine Fluoride-сo-Hexafluoropropylene) (PVdF-HFP), Lithium Perchlorate (LiClO4) and 1-Butyl-3-Methylimmidazoliumhexafluorophosphate [PF6]

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Abstract:

This study reported the preparation and characterization of gel polymer electrolyte (GPE) using poly (vinylidine fluoride-co-hexafluoropropylene) (PVdF-HFP), lithium perchlorate (LiClO4) and 1-butyl-3-metilimmidazoliumhexafluorophosphate [PF6]. The GPE were prepared by solution casting technique. [Bmim] [PF6] ionic liquid is used as an additive for the purpose of increasing the ionic conductivity of GPE. Morphological analysis showed that the electrolyte gel polymer sample had a smooth and flat surface with the addition of [Bmim] [PF6] and no phase separation effect was observed. This shows the compatibility between PVdF-HFP and [Bmim] [PF6]. ATR-FTIR analysis showed that C-F bond related peaks experienced peak changes in terms of intensity and peak shifting. This proves the interaction of the imidazolium ion with the fluorine atom through the formation of coordinate bonds. Ionic conductivity analysis showed that PVdF-HFP-[Bmim][PF6] samples reached a maximum room temperature ionic conductivity value of 2.44 × 10-4 S cm-1 at 60 wt.% [Bmim] [PF6]. When 20 wt.% of LiClO4 added to the system, the ionic conductivity increased one magnitude order to 2.20 × 10-3 S cm-1.

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Solid State Science and Technology VII View Preview

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Periodical:

Solid State Phenomena (Volume 317)

Pages:

434-439

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.317.434

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Online since:

May 2021

Authors:

Siti Aminah Mohd Noor*, Chow Peng Wong, Mariah Zuliana Dzulkipli, Mohd Sukor Su'ait, Lee Tian Khoon, Nur Hasyareeda Hassan

Keywords:

1-Butyl-3-Methylmidazolium Hexafluorophosphate, Gel Polymer Electrolyte, Poly(Vinilidine Fluoride-co-Hexafluoropropylene), Solution Casting Technique

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