Monte Carlo study of diffusion in polymer electrolytes

P. Pendzig*, W. Dieterich, A. Nitzan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Polymer chain and ion dynamics properties are investigated in a lattice model of polymer electrolytes, which emphasizes the difference in cation-polymer and anion-polymer interactions. The assumption of specific binding sites for cations on the chain molecules leads to a reduction of chain mobilities, which in turn suppresses diffusion of ions. We find a correlation between cation and chain diffusion constants, both of which closely follow a Vogel-Tammann-Fulcher (VTF) law with a common VTF-temperature, which increases with ion concentration. These findings are discussed in connection with recent experiments revealing a salt-induced change of the glass transition temperature and a pronounced asymmetry in the cation and anion diffusion constants.

Original languageEnglish
Pages (from-to)748-752
Number of pages5
JournalJournal of Non-Crystalline Solids
StatePublished - 2 Aug 1998


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