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Raman and 7Li NMR spectroscopic studies of Li/SO2 rechargeable cells

✍ Scribed by T.J. Lee; P.C. Yao; G.T.-K. Fey

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
485 KB
Volume
35
Category
Article
ISSN
0378-7753

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✦ Synopsis

Both Raman and 7Li NMR spectroscopic data of 0.2 M LiAICl, and LiGaCL in Iiquid sulfur dioxide indicate that ionic structuraI changes occur near 25 "C, thus supporting observations from conductivity and cyclic voltammetric studies. The solvation number of the lithium cation is 4 for both salts of interest. The activation energies of spin-lattice relaxation, the formation constants of Iithium ion pairs, and the chemical shii due to the free lithium ions and lithium ion pairs of LiAlCl, and LiGaCl, in suIfur dioxide are presented.

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