Abstract
Membranes based on the composite gel polymer electrolyte (CGPE) system have been prepared through the solution casting method using poly(vinylidene fluoride–hexafluoropropylene) (P(VdF–HFP)), nano-sized alumina ceramics (Al2O3) and 1M LiCF3SO3 salt dissolved in the mixture of (1:1) ethylene carbonate, dimethyl carbonate (EC+DMC) solvents. Physicochemical characteristics viz., structural, electrochemical properties of these membranes have been analyzed. The optimum composition of 10wt% Al2O3 with (P(VdF–HFP)) and 1M LiCF3SO3 in EC+DMC showed a higher ionic conductivity of 7.1047×10−3Scm−1, electrochemical stability of 4.9V (CGPE-10, 30°C) which can be attributed to honey-comb structure. This Li/CGPE-10/LiNi1/3Mn1/3Co1/3O2 cell delivered significant enhancement in charge–discharge studies viz., 186mAhg−1 (1st) and good capacity retention ∼90% (50th) in the voltage range 2.5–4.6V at 0.1C rate. Also, corresponding Li-ion polymer cell (MCMB/CGPE-10/LiNi1/3Mn1/3Co1/3O2) yielded proportionate 2.38mAh and the capacity retention ∼95% at the 50th cycle.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
