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

Ng, Simon T.C., Forsyth, Maria, Garcia, Maria, MacFarlane, Douglas R., Smith, Mark E. (1998) A nuclear magnetic resonance study of Li-7 dynamics in polyether-urethane based solid polymer electrolytes. Electrochimica Acta, 43 (10-11). pp. 1551-1556. ISSN 0013-4686. (doi:10.1016/S0013-4686(97)10052-4) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:17470)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL:
http://dx.doi.org/10.1016/S0013-4686(97)10052-4

Abstract

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 Li-7 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 T-1 and T-2 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.

Item Type: Article
DOI/Identification number: 10.1016/S0013-4686(97)10052-4
Uncontrolled keywords: polymer electrolytes; lithium-7 NMR; plasticisers; conductivity; NMR relaxation studies; ionic aggregation
Subjects: Q Science
T Technology
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: M.A. Ziai
Date Deposited: 29 Jun 2011 08:15 UTC
Last Modified: 16 Nov 2021 09:55 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/17470 (The current URI for this page, for reference purposes)

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