FT-Raman spectroscopy study on the effect of ceramic fillers in P(EO) 20LiBETI

Joon-Ho Shin, Sang-Sik Jeong, Ki-Won Kim, Stefano Passerini

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The present work reports the Raman spectroscopic characterization of solvent-cast and hot-pressed P(EO)20LiN(SO2CF2CF3)2(LiBETI) polymer electrolytes containing nanosized (7 and 12 nm) SiO2and micro-sized γ-LiAlO2. 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 SiO2ceramic 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. © 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)571 - 577
Number of pages7
JournalSolid State Ionics
Issue number5-6
Publication statusPublished - 14 Feb 2005
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electrochemistry
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Materials Chemistry
  • Condensed Matter Physics

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