Preparation and study of conductivity in lithium salt complexes of mixed MEEP : PEO polymer electrolytes

Bulletin of materials science

G Saibaba²  D Srikanth¹  A Ramachandra Reddy¹ 

[1] Department of Physics, National Institute of Technology, Warangal 506 004, India$$Department of Physics, National Institute of Technology, Warangal 506 004, IndiaDepartment of Physics, National Institute of Technology, Warangal 506 004, India$$;Department of Physics, Railway College, Kazipet 506 003, India$$Department of Physics, Railway College, Kazipet 506 003, IndiaDepartment of Physics, Railway College, Kazipet 506 003, India$$

关键词: Complexes;    conductivity;    structural modification;    amorphous region.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Poly(ethylene oxide)â€�?�LiX complexes and poly[bis(methoxy ethoxy ethoxide) phosphazene]â€�?�LiX complexes of polymer thin films were prepared. Conductivity measurements were carried out and the values were found to lie between 10^-8 and 1.7 Ã�? 10^-5 (S/cm). MEEP : LiX salts showed higher conductivity than PEOâ€�?�LiX salts despite lower dimensional stability. For enhancing stability and conductivity, MEEPâ€�?�PEO : (LiX)_ð‘�?? systems were prepared and conductivity measurements carried out. Further the MEEP/PEO : (LiX)_ð‘�?? was doped with Al₂O₃ and TiO₂ nanocomposite ceramic fillers and the conductivity was studied. The conductivity vs temperature plots showed the enhancement of conductivity with TiO₂ added nanocomposite ceramic fillers. The enhanced conductivity is explained on the basis of the effect of local structural modification-promoting localized amorphous region-for enhancement of the Li⁺ ion transport.

【 授权许可】

Unknown