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Li-7 NMR measuremen...
Li-7 NMR measurements of polymer gel electrolytes
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- Adebahr, Josefina (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Forsyth, M (author)
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MacFarlane, DR (author)
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- Gavelin, Patrik (author)
- Lund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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- Jacobsson, Per, 1958 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2002
- 2002
- English.
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In: Solid State Ionics. - 0167-2738. ; 147:3-4, s. 303-307
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Abstract
Subject headings
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- 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 Li-7 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. (C) 2002 Elsevier Science B.V. All rights reserved.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
Keyword
- polymer gel electrolyte
- mobility
- NMR spectroscopy
- ionic interaction
Publication and Content Type
- art (subject category)
- ref (subject category)
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