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7Li NMR measurements of polymer gel electrolytes

Adebahr, J., Forsyth, M., MacFarlane, D. R., Gavelin, P. and Jacobsson, P. 2002, 7Li NMR measurements of polymer gel electrolytes, Solid state ionics, vol. 147, no. 3-4, pp. 303-307.

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Title 7Li NMR measurements of polymer gel electrolytes
Formatted title 7Li NMR measurements of polymer gel electrolytes
Author(s) Adebahr, J.
Forsyth, M.
MacFarlane, D. R.
Gavelin, P.
Jacobsson, P.
Journal name Solid state ionics
Volume number 147
Issue number 3-4
Start page 303
End page 307
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2002-04
ISSN 0167-2738
1872-7689
Keyword(s) polymer gel electrolyte
mobility, Ionic interaction
NMR spectroscopy
Summary Ion conducting polymer gels prepared from (ethylene oxide)n grafted methacrylates, ethylene carbonate (EC), gamma butyrolactone (gBL), and lithium hexafluorophosphate are studied by means of nuclear magnetic resonance spectroscopy. This study shows that there are at least two possible lithium sites with different mobility. The lithium-ions with lower mobility dominate at room temperature, but this is changed as the temperature is increased. The NMR results also show that the 7Li spin–spin relaxation time decreases with increasing length of the grafted ethylene oxide side chains, indicating a stronger interaction between the polymer and the Li-ions, and hence, a lower mobility of the Li-ions.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2002, Elsevier Science B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030046

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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