Conductivity and FTIR studies on PEO-LiX [X: CF3SO3(-), SO4(2-)] polymer electrolytes.

Conductivity and FTIR studies on PEO-LiX [X: CF3SO3(-), SO4(2-)] polymer electrolytes.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (2007-06-30)

S Ramesh, Tai Fung Yuen, Chia Jun Shen

RÉSUMÉ

Polymer electrolytes based on poly(ethylene oxide)-lithium triflate (PEO-LiCF3SO3) and poly(ethylene oxide)-lithium sulphate (PEO-Li2S4) were prepared by using solution casting method. Measurements of conductivity and dielectric were carried out on these films as a function of frequency at various temperatures. It was observed that PEO-LiCF3SO3 polymer electrolytes have higher conductivity. The interaction between PEO and Li salts were studied by Fourier transform infrared (FTIR).

MATÉRIAUX

Référence du produit

Marque

Description du produit

L6375

Sigma-Aldrich

Sulfate de lithium, ≥98.5% (titration)

203653

Sigma-Aldrich

Sulfate de lithium, ≥99.99% trace metals basis

62613

Sigma-Aldrich

Sulfate de lithium, purum p.a., ≥98.0% (T)