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Title: A vibrational spectroscopic study on the interaction between lithium salt and ethylene carbonate plasticizer for PAN-based electrolytes

Abstract

The Raman and infrared (IR) spectra of ethylene carbonate (EC) containing various concentrations of lithium perchlorate have been studied. It was found that both the vibrational frequencies and the relative intensities of the bands related to the ring structure and C{double_bond}O group of the EC molecule change with the concentration of LiClO{sub 4} in the solution. The results indicate that there are rather strong interactions between Li{sup +} ions and EC molecules. The interactions between the Li{sup +} ions and EC molecules occur on all three oxygen atoms of the carbonate group. Another result given by Raman and IR spectroscopy is that the vibrational modes of ClO{sub 4}{sup {minus}} anions at 460 and at 624 cm{sup {minus}1} are nearly as sensitive as the previously reported ClO{sub 4}{sup {minus}} bands at 930 cm{sup {minus}1} in detecting ion aggregates in the LiClO{sub 4}/EC solutions. The technical interest in these materials is that they can be used as solid electrolytes in solid-state batteries, fuel cells, and chemical sensors, etc.

Authors:
; ; ; ; ;  [1]
  1. Chinese Academy of Sciences, Beijing (China)
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
256802
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 143; Journal Issue: 5; Other Information: PBD: May 1996
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 30 DIRECT ENERGY CONVERSION; ELECTRIC BATTERIES; SOLID ELECTROLYTES; SOLID ELECTROLYTE FUEL CELLS; CLATHRATES; RAMAN SPECTRA; INFRARED SPECTRA; LITHIUM COMPOUNDS; ORGANIC POLYMERS; NITRILES; PLASTICIZERS

Citation Formats

Wang, Z, Huang, B, Huang, H, Xue, R, Chen, L, and Wang, F. A vibrational spectroscopic study on the interaction between lithium salt and ethylene carbonate plasticizer for PAN-based electrolytes. United States: N. p., 1996. Web. doi:10.1149/1.1836671.
Wang, Z, Huang, B, Huang, H, Xue, R, Chen, L, & Wang, F. A vibrational spectroscopic study on the interaction between lithium salt and ethylene carbonate plasticizer for PAN-based electrolytes. United States. doi:10.1149/1.1836671.
Wang, Z, Huang, B, Huang, H, Xue, R, Chen, L, and Wang, F. Wed . "A vibrational spectroscopic study on the interaction between lithium salt and ethylene carbonate plasticizer for PAN-based electrolytes". United States. doi:10.1149/1.1836671.
@article{osti_256802,
title = {A vibrational spectroscopic study on the interaction between lithium salt and ethylene carbonate plasticizer for PAN-based electrolytes},
author = {Wang, Z and Huang, B and Huang, H and Xue, R and Chen, L and Wang, F},
abstractNote = {The Raman and infrared (IR) spectra of ethylene carbonate (EC) containing various concentrations of lithium perchlorate have been studied. It was found that both the vibrational frequencies and the relative intensities of the bands related to the ring structure and C{double_bond}O group of the EC molecule change with the concentration of LiClO{sub 4} in the solution. The results indicate that there are rather strong interactions between Li{sup +} ions and EC molecules. The interactions between the Li{sup +} ions and EC molecules occur on all three oxygen atoms of the carbonate group. Another result given by Raman and IR spectroscopy is that the vibrational modes of ClO{sub 4}{sup {minus}} anions at 460 and at 624 cm{sup {minus}1} are nearly as sensitive as the previously reported ClO{sub 4}{sup {minus}} bands at 930 cm{sup {minus}1} in detecting ion aggregates in the LiClO{sub 4}/EC solutions. The technical interest in these materials is that they can be used as solid electrolytes in solid-state batteries, fuel cells, and chemical sensors, etc.},
doi = {10.1149/1.1836671},
journal = {Journal of the Electrochemical Society},
number = 5,
volume = 143,
place = {United States},
year = {1996},
month = {5}
}