goujon-macrophaseseparated-2020.pdf (1.26 MB)
Macrophase-separated organic ionic plastic crystals/PAMPS-based ionomer electrolyte: a new design perspective for flexible and highly conductive solid-state electrolytes
journal contribution
posted on 2020-01-01, 00:00 authored by Nicolas Goujon, Robert KerrRobert Kerr, C Gervillié, Y V Oza, Luke O'DellLuke O'Dell, Patrick HowlettPatrick Howlett, Maria ForsythMaria ForsythA material design approach was taken for the preparation of an organic ionic plastic crystal (OIPC)-polymer electrolyte material that exhibited both good mechanical and transport properties. Previous attempts to form this type of electrolyte material resulted in the solvation of the OIPC by the ionomer and loss of the plastic crystal component. Here, we prepared, in situ, a macrophase-separated OIPC-polymer electrolyte system by adding lithium bis(fluorosulfonyl)imide (LiFSI) to a (PAMPS-N1222) ionomer. It was found that an optimal compositional window of 40-50 mol % LiFSI exists whereby the electrolyte conductivity suddenly increased 4 orders of magnitude while exhibiting elastic and flexible mechanical properties. The phase behavior and transport properties were studied using differential scanning calorimetry and 7Li and 19F solid-state nuclear magnetic resonance spectroscopy. This is the first example of a fabrication principle that lends itself to a wide range of promising OIPC and ionomeric materials. Subsequent studies are required to characterize and understand the morphology and conductive nature of these systems and their application as electrolyte materials.
History
Journal
ACS omegaVolume
5Issue
6Pagination
2931 - 2938Publisher
American Chemical SocietyLocation
Washington, D.C.Publisher DOI
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eISSN
2470-1343Language
engPublication classification
C1 Refereed article in a scholarly journalUsage metrics
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