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.
| Original language | English |
|---|---|
| Article number | 1755 |
| Journal | Polymers |
| Volume | 12 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2020 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2020 by the authors.
Keywords
- Ionic conductivity
- Ionic liquid
- Polymer electrolyte
- Zn-ion conducting
ASJC Scopus subject areas
- General Chemistry
- Polymers and Plastics
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