Mixed anion effect on the ionic transport behavior, complexation and various physicochemical properties of ionic liquid based polymer gel electrolyte membranes
2016
Shalu, | Balo, Liton | Gupta, Himani | Singh, Varun kumar | Singh, Rajendra Kumar
Li-ion conducting polymer gel electrolyte membranes (PGEMs) containing ionic liquid (IL), 1-butyl-3-methylimidazolium tetrafluroborate BMIMBF₄, polymer poly(vinylidene fluoride-co-hexafluoropropylene) PVdF-HFP and lithium bis(trifluoromethanesulfonyl)imide LiTFSI salt (having different anion i.e. BF₄⁻ and TFSI⁻) have been synthesized and characterized by various techniques. The results show that the synthesized PGEMs have good free-standing characteristics, good thermal stability (300–400 °C) and also have a wide electrochemical window (ECW) ∼4.0–4.20 V. The conductivity increases with increasing amount of IL, and attains a value of 3.2 × 10⁻³ S cm⁻¹ at room temperature for the PGEMs containing higher loadings of IL. A high total ionic transference number (∼0.99) and cationic transference number (tLᵢ₊ ∼ 0.33) for the PGEMs containing higher loadings of IL have been obtained.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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