  Blend solid polymer electrolyte based on PEO, PVP complexed with lithium
LiBOB were synthesized by solution cast technique and impact of LiBOB on the
morphology, structure, and electrochemical properties is examined. The XRD and
FESEM analysis reveals the enhancement of amorphous content on salt addition.
The FTIR spectroscopy evidences the complex formation. The ionic conductivity
for optimized system was two order higher than salt free system, i.e. ~0.5x10-5
S cm-1 (@RT) and increases to ~0.65 mS cm-1 (@100 oC) for O/Li=16 and
temperature dependent conductivity follows Arrhenius nature. The high tion
(~0.99) evidences the ionic nature of complexed electrolyte. DSC analysis
evidences the suppression of crystallinity and shift of glass & melting
temperature toward lower temperature implies the enhancement of amorphous
content. Finally, an interaction mechanism is proposed for exploring the ion
transport mechanism. The present electrolyte system can be a potential
candidate for application in solid-state batteries
