FT-Raman spectroscopy study on the effect of ceramic fillers in P(EO) 20LiBETI
Shin JH, Jeong SS, Kim KW, Passerini S.
Research article (journal)Abstract
The present work reports the Raman spectroscopic characterization of solvent-cast and hot-pressed P(EO)20LiN(SO2CF 2CF3)2 (LiBETI) polymer electrolytes containing nanosized (7 and 12 nm) SiO2 and micro-sized γ-LiAlO 2. The Raman spectra showed slight changes, including peak shifting and new peaks, in the low frequency region that are likely due to the interaction between the filler and the polymer. However, no significant differences in the BETI- anion modes in filler-free and filler-containing P(EO)20LiBETI polymer electrolytes were detected. This indicates that the presence of the nanometric SiO2 ceramic filler in the P(EO)20LiBETI polymer electrolyte may have little influence on the ionic interactions. In addition, solvent-cast polymer electrolytes showed only slight changes in very weak vibrational modes.
Details about the publication
Authors from the University of Münster
| Jeong, Sangsik | Institute of Physical Chemistry |
| Passerini, Stefano | Institute of Physical Chemistry |