1. Preparation and characterization of PEO-based composite gel-polymer electrolytes complexed with lithium trifluoro methane sulfonate
- Author
-
A. J. Nagajothi, S. Rajashabala, and R. Kannan
- Subjects
Materials science ,Polymer electrolytes ,Composite number ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Nanomaterials ,interfacial properties ,General Materials Science ,Materials of engineering and construction. Mechanics of materials ,polyethylene oxide ,ft-ir ,Mechanical Engineering ,transport number ,Methane sulfonate ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,0104 chemical sciences ,Characterization (materials science) ,Chemical engineering ,chemistry ,Mechanics of Materials ,ionic conductivity ,TA401-492 ,Lithium ,0210 nano-technology - Abstract
Chitosan has been successfully incorporated as a filler in a polyethylene oxide (PEO) and lithium trifluoromethanesulfonate (LiCF3SO3) matrix with a combination of plasticizers, namely 1,3-dioxolane (DIOX) and tetraethylene glycol dimethylether (TEGDME). The composite gel-polymer electrolyte (CGPE) membranes were prepared by solution casting technique in an argon atmosphere. The prepared membranes were subjected to SEM, TG/DTA and FT-IR analyses. A Li/CGPE/Li symmetric cell was assembled and the variation of interfacial resistance was measured as a function of time. The lithium transference number (Li+t) was measured and the value was calculated as 0.6 which is sufficient for battery applications. The electrochemical stability window of the sample was studied by linear sweep voltammetry and the polymer electrolyte was found to be stable up to 5.2 V.
- Published
- 2018