1997/10/21 by Aninda J. Bhattacharyya, Aninda Jiban Bhattacharyya, Bhattacharyya, Aninda Jiban +6
Chemical Engineering · Engineering · Physics and Astronomy · #Advanced Battery Materials and Technologies #Condensed Matter (cond-mat) #FOS: Physical sciences #Fuel Cells and Related Materials #Ionic liquids properties and applications #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9710214
12 pages, LaTeX, 2 ps figures, Submitted to Jour. Appl. Phys
arxiv created 1997/10/21 · openalex publication_date 1997/10/21 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper we present a computer simulation study of ionic conductivity in\nsolid polymeric electrolytes. The multiphase nature of the material is taken\ninto account. The polymer is represented by a regular lattice whose sites\nrepresent either crystalline or amorphous regions with the charge carrier\nperforming a random walk. Different waiting times are assigned to sites\ncorresponding to the different phases. A random walk (RW) is used to calculate\nthe conductivity through the Nernst-Einstein relation. Our walk algorithm takes\ninto account the reorganisation of the different phases over time scales\ncomparable to time scales for the conduction process. This is a characteristic\nfeature of the polymer network. The qualitative nature of the variation of\nconductivity with salt concentration agrees with the experimental values for\nPEO-NH4I and PEO-NH4SCN. The average jump distance estimated from our\nwork is consistent with the reported bond lengths for such polymers.\n