Kajian sifat elektrokimia dan teraksi kimia elektrolit polimer pepejal berasaskan PVdF-HFP/ENR50-LiTf

Authors

  • Siti Aminah Mohd Noor Centre for Defence Foundation Studies, National Defence University of Malaysia, 57000, Kuala Lumpur, MALAYSIA
  • Nor Shafika Ramli Faculty of Science and Technology, Universiti Kebangsaan Malaysia 43600, Bangi, Selangor, MALAYSIA
  • Mohd Sukor Su'ait Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia 43600, Bangi, Selangor, MALAYSIA
  • Lee Tian Khoon Instutute Sel Fuel, Universiti Kebangsaan Malaysia 43600, Bangi, Selangor, MALAYSIA
  • Azizan Ahmad Faculty of Science and Technology, Universiti Kebangsaan Malaysia 43600, Bangi, Selangor, MALAYSIA

Keywords:

Elektrolit polimer pepejal (EPP), getah asli terepoksida, PVdF-HFP, LiTf

Abstract

Elektrolit polimer pepejal (EPP) yang terdiri daripada pengadunan PVdF-HFP dan ENR50 sebagai polimer induk dan LiTf sebagai garam pendopan telah disediakan dengan menggunakan teknik pengacuanan larutan. Kesan peratusan berat garam LiTf terhadap sifat elektrokimia iaitu kekonduksian ion dan kestabilan kimia serta perubahan dan interaksi kimia bagi elektrolit polimer pepejal berasaskan PVdF-HFP/ENR50-LiTf telah dikaji. Filem EPP ini dicirikan menggunakan spektroskopi inframerah tranform Fourier-pantulan penuh (ATR-FTIR) bagi menentukan interaksi kimia yang berlaku, manakala spektroskopi impedan elektrokimia (EIS), nombor angkutan ion (Tn) dan voltametri kitaran (CV) digunakan untuk mengkaji kekonduksian ion dan kestabilan kimia EPP yang terhasil. Interaksi kimia di antara kumpulan berfungsi C-F dan ion litium di dalam sampel dapat dikesan dengan melakukan analisis inframerah. Analisis EIS menunjukkan kekonduksian ion yang paling optimum adalah pada 25 % berat garam iaitu 4.61 x10-5 S cm-1. Analisis nombor angkutan ion menentukan jumlah ion yang bergerak dalam EPP dan nilai Tion yang diperolehi adalah  0.997.

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Published

2020-01-03

Issue

Vol. 4 No. 1 (2019)

Section

Articles

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