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Ionic Liquid-Incorporated Zn-Ion Conducting Polymer Electrolyte Membranes.

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Title: Ionic Liquid-Incorporated Zn-Ion Conducting Polymer Electrolyte Membranes.
Authors: Liu, Jianghe1 (AUTHOR) liujianghe@stu.hit.edu.cn, Ahmed, Sultan1 (AUTHOR) usmanisultan@gmail.com, Khanam, Zeba1 (AUTHOR) zbkhnm@gmail.com, Wang, Ting2 (AUTHOR) twang-hawk@foxmail.com, Song, Shenhua1 (AUTHOR) shsong@hit.edu.cn
Source: Polymers (20734360). Aug2020, Vol. 12 Issue 8, p1755. 1p.
Subjects: Polyelectrolytes, Polymeric membranes, Ionic conductivity, Energy storage, Electrolytes
Abstract: In this study, novel ionic liquid-incorporated Zn-ion conducting polymer electrolyte membranes containing polymer matrix poly (vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (EMITf), along with zinc trifluoromethanesulfonate Zn(Tf)2, are prepared and investigated. It is ascertained that the optimal membrane ILPE-Zn-4 (the mass ratio of EMITf:Zn(Tf)2:PVDF-HFP is 0.4:0.4:1), with abundant nanopores, exhibits a high amorphousness. At room temperature, the optimized electrolyte membrane offers a good value of ionic conductivity (~1.44 × 10−4 S cm−1), with a wide electrochemical stability window (~4.14 V). Moreover, the electrolyte membrane can sustain a high thermal decomposition temperature (~305 °C), and thus its mechanical performance is sufficient for practical applications. Accordingly, the ionic liquid-incorporated Zn-ion conducting polymer electrolyte could be a potential candidate for Zn-based energy storage applications. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:In this study, novel ionic liquid-incorporated Zn-ion conducting polymer electrolyte membranes containing polymer matrix poly (vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (EMITf), along with zinc trifluoromethanesulfonate Zn(Tf)2, are prepared and investigated. It is ascertained that the optimal membrane ILPE-Zn-4 (the mass ratio of EMITf:Zn(Tf)2:PVDF-HFP is 0.4:0.4:1), with abundant nanopores, exhibits a high amorphousness. At room temperature, the optimized electrolyte membrane offers a good value of ionic conductivity (~1.44 × 10−4 S cm−1), with a wide electrochemical stability window (~4.14 V). Moreover, the electrolyte membrane can sustain a high thermal decomposition temperature (~305 °C), and thus its mechanical performance is sufficient for practical applications. Accordingly, the ionic liquid-incorporated Zn-ion conducting polymer electrolyte could be a potential candidate for Zn-based energy storage applications. [ABSTRACT FROM AUTHOR]
ISSN:20734360
DOI:10.3390/polym12081755