Electrochemical studies of PVdF-HFP-based  gel electrolytes

 

Kamisah Mohamad Mahbor1 & Ibrahim Abu Talib2

 

1AMREC, SIRIM Berhad,

Lot 34, Jln Hi-Tech 2/3,

Kulim Hi-Tech Park,

09000 Kulim, Kedah

2School of Applied Physics, Faculty of Science & Technology

Universiti Kebangsaan Malaysia,

 43600 Bangi, Selangor

 

 

ABSTRACT

 

The electrochemical properties of PVdF-HFP-based gel electrolytes formed by immobilizing of commercial battery electrolytes in a copolymer poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) have been determined. The ionic conductivity, interaction with lithium metal and Li+ ion transference number of gel electrolytes, which are examined by the impedance spectroscopy and the dc polarization of cells are evaluated and discussed.  Particular attention is devoted to the phenomena occurring at the interface between this gel and the lithium metal electrode.

 

 

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