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Mixed Anion Effect in Ion Conducting Polymer Electrolytes
Author(s) -
Bhattacharya B.,
Chandra A.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/(sici)1521-3951(200105)225:1<179::aid-pssb179>3.0.co;2-5
Subject(s) - crystallinity , conductivity , dielectric , ion , ionic conductivity , electrolyte , polar , materials science , polymer , ionic bonding , electrical resistivity and conductivity , analytical chemistry (journal) , chemistry , inorganic chemistry , organic chemistry , physics , composite material , electrode , optoelectronics , quantum mechanics , astronomy
Electrical conductivity, DSC, percentage of crystallinity and dielectric constant have been studied for mixed anion systems: (i) PEO: (1 — x ) NaI + x NaSCN, (ii) PEO: (1 — x ) NaI + x NaCH 3 COO and (iii) PEO: (1 — x ) NaSCN + x NaCH 3 COO for 0 ≤ x ≤ 1. The conductivity enhancement is larger for the (nonpolar + polar) anion system, i.e. systems (i) and (ii), compared to system (iii) which is a (polar + polar) anion combination. A qualitative correlation has been established for conductivity changes vis‐a‐vis ionic size, percentage of crystallinity and dielectric constant.