A nuclear magnetic resonance study of 7Li dynamics in polyether-urethane based solid polymer electrolytes

Ng, S. T. C., Forsyth, M., Garcia, M., MacFarlane, D. R. and Smith, M. E. 1998, A nuclear magnetic resonance study of 7Li dynamics in polyether-urethane based solid polymer electrolytes, Electrochimica acta, vol. 43, no. 10-11, pp. 1551-1556.

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Title A nuclear magnetic resonance study of 7Li dynamics in polyether-urethane based solid polymer electrolytes
Formatted title A nuclear magnetic resonance study of 7Li dynamics in polyether-urethane based solid polymer electrolytes
Author(s) Ng, S. T. C.
Forsyth, M.
Garcia, M.
MacFarlane, D. R.
Smith, M. E.
Journal name Electrochimica acta
Volume number 43
Issue number 10-11
Start page 1551
End page 1556
Publisher Elsevier Science Pub. Co.
Place of publication New York, N.Y.
Publication date 1998-04
ISSN 0013-4686
1873-3859
Keyword(s) polymer electrolytes
lithium-7 NMR
plasticisers
conductivity
NMR relaxation studies
ionic aggregation
Summary Nuclear magnetic resonance (NMR) is a technique that allows the probing of the dynamics of specific magnetically active nuclei. In the present study a polyethylene glycol network containing varying concentrations of LiClO4 have been studied using 7Li NMR relaxation techniques. A plasticiser, tetraglyme, has been added to several samples to improve the mobility of the polymer and thus of the ionic species. The effects of tetraglyme and salt concentration on the cationic mobility and environment have been investigated using T1 and T2 relaxation experiments, with the presence of two cationic species of differing relaxation times (and possibly mobility) reported. The results are discussed with relevance to conductivity measurements made on similar samples.
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 ©1998, Elsevier Science Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030222

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