Abstract
High resolution NMR has been used to reveal interactions between components in prepared electrolyte material prior to polymerization that was aimed for use in lithium polymer battery research. Previous results indicated a decrease in lithium mobility with increased amount of methoxysilyl groups contained in the sample. 1H, 13C, 7Li, and 29Si NMR spectra as well as pulsed field-gradient (PFG NMR) measurements of the self-diffusion of lithium ions were obtained and a preferred coordination of lithium ions to the methoxysilyl groups was proved. Although this interaction seems quite weak, based on the small shifts observed in the spectra, a clear decrease in lithium diffusion dependent on the increased content of methoxysilyl groups was shown.
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