Synthesis and characterization of SrBi4Ti4O15ferroelectric
filler based composite polymer electrolytes for lithium ion batteries |
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| Authors: | D Shanmukaraj GX Wang H K Liu R Murugan |
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| Affiliation: | (1) Department of Physics Pondicherry Engineering College, 605014 Puducherry, India;(2) Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2522 Wollongong, Australia |
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| Abstract: | Composite polymer electrolytes (CPEs) based on poly (ethylene oxide) (PEO) (Mol.Wt ∼6×105)
complexed with LiN(CF3SO2)2 lithium
salt and SrBi4Ti4O15 ferroelectric
ceramic filler have been prepared as films. Citrate gel technique and conventional solid state technique
were employed for the synthesis of the ferroelectric fillers in order to study the effect of particle
size of the filler on ionic conductivity of the polymer electrolyte. Characterization techniques such
as X-ray diffraction (XRD), differential thermal analysis (DTA), scanning electron microscopy (SEM) and
temperature dependant DC conductivity studies were taken for the prepared polymer composite electrolytes.
The broadening of DTA endotherms on addition of ceramic fillers to the polymer salt complex indicated
the reduction in crystallinity. An enhancement in conductivity was observed with the addition of SrBi4Ti4O15
as filler to the (PEO)8-LiN(CF3SO2)2
polymer salt complexes. Among the investigated samples (PEO)8-LiN(CF3SO2)2
+10 wt% SrBi4Ti4O15 (citrate
gel) polymer composite exhibits a maximum conductivity. |
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