Summary
A simple model for the concentration dependence of the electrical conductivity of the polymer electrolyte: poly(ethyleneoxide) — LiCF3SO3 is presented. It is assumed that the crystals with stoichiometry: 4 polymer oxygens to 1 lithiumion are insulating and the surrounding conducting solution is saturated in the 4∶1 crystals. Correcting the space available for conduction with a volume correction factor accounts qualitatively for the concentration dependence of the conductivity.
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Sørensen, P.R., Jacobsen, T. Phase diagram and conductivity of the polymer electrolyte: PEORLiCF3SO3 . Polymer Bulletin 9, 47–51 (1983). https://doi.org/10.1007/BF00275567
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DOI: https://doi.org/10.1007/BF00275567