A 7Li and 19F NMR relaxation study of LiCF3SO3 in plasticised solid polyether electrolytes
Data(s) |
01/12/1995
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Resumo |
<sup>7</sup>Li and <sup>19</sup>F NMR relaxation time (<i>T</i><sub>1</sub>, <i>T</i><sub>2</sub>, <i>T</i><sub>1ρ</sub>) measurements have been used to probe the dynamics of LiCF<sub>3</sub>SO<sub>3</sub> dissolved in an amorphous co-polymer poly(ethylene oxide-co-propylene oxide), and in particular the influence of the plasticising agents propylene carbonate and dimethyl formamide. The changes in relaxation behaviour of <sup>19</sup>F and <sup>7</sup>Li with increasing plasticiser concentration are very different, as is the effect of each plasticiser. These differences can be explained qualitatively in terms of the interaction between the plasticiser and the ions. Preliminary <sup>7</sup>Li T<sub>1</sub><sub>ρ</sub> measurements reveal two components at low temperatures.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Academic Press |
Relação |
http://dro.deakin.edu.au/eserv/DU:30030052/forsyth-a7liand19f-1995.pdf http://dx.doi.org/10.1016/0926-2040(95)01192-1 |
Direitos |
1995, Elsevier Science B.V. |
Palavras-Chave | #lithium-7 #fluorine-19 #NMR relaxation #lithium triflate #polymer electrolyte |
Tipo |
Journal Article |