TY - JOUR
T1 - A new percolation model for composite solid electrolytes and dispersed ionic conductors
AU - Hasyim, Muhammad Risyad
AU - Lanagan, Michael T.
N1 - Funding Information:
The authors gratefully acknowledge the support of the National Science Foundation as part of the Center for Dielectrics and Piezoelectrics under Grant No. IIP-1361571 and IIP-1361503. This work contributed to the completion of MR Hasyim’s ESM BS thesis ‘Experimental Studies and Modeling of Lithium Borate/Silica Composite Solid Electrolyte.’ Any opinion, findings, conclusions and/or recommendations expressed are those of the authors and do not necessarily reflect the views of the NSF.
Publisher Copyright:
© 2018 IOP Publishing Ltd.
PY - 2018/3
Y1 - 2018/3
N2 - Composite solid electrolytes (CSEs) including conductor/insulator composites known as dispersed ionic conductors (DICs) have motivated the development of novel percolation models that describe their conductivity. Despite the long history, existing models lack in one or more key areas: (1) rigorous foundation for their physical theory, (2) explanation for non-universal conductor-insulator transition, (3) classification of DICs, and (4) extension to frequency-domain. This work describes a frequency-domain effective medium approximation (EMA) of a bond percolation model for CSEs. The EMA is derived entirely from Maxwell's equations and contains basic microstructure parameters. The model was applied successfully to several composite systems from literature. Simulations and fitting of literature data address these key areas and illustrate the interplay between space charge layer properties and bulk microstructure.
AB - Composite solid electrolytes (CSEs) including conductor/insulator composites known as dispersed ionic conductors (DICs) have motivated the development of novel percolation models that describe their conductivity. Despite the long history, existing models lack in one or more key areas: (1) rigorous foundation for their physical theory, (2) explanation for non-universal conductor-insulator transition, (3) classification of DICs, and (4) extension to frequency-domain. This work describes a frequency-domain effective medium approximation (EMA) of a bond percolation model for CSEs. The EMA is derived entirely from Maxwell's equations and contains basic microstructure parameters. The model was applied successfully to several composite systems from literature. Simulations and fitting of literature data address these key areas and illustrate the interplay between space charge layer properties and bulk microstructure.
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U2 - 10.1088/1361-651X/aaa26f
DO - 10.1088/1361-651X/aaa26f
M3 - Article
AN - SCOPUS:85041407430
SN - 0965-0393
VL - 26
JO - Modelling and Simulation in Materials Science and Engineering
JF - Modelling and Simulation in Materials Science and Engineering
IS - 2
M1 - 025011
ER -