A model problem concerning ionic transport in microstructured solid electrolytes

We consider ionic transport by diffusion and migration through microstructured solid electrolytes. The assumed constitutive relations for the constituent phases follow from convex energy and dissipation potentials which guarantee thermodynamic consistency. The effective response is determined by hom...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Curto Sillamoni, Ignacio José, Idiart, Martín Ignacio
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2015
Materias:	Ingeniería Ingeniería Aeronáutica Diffusion Migration Heterogeneous solids Periodic homogenization Interphases
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/103069 https://link.springer.com/article/10.1007/s00161-014-0391-4
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-103069
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ingeniería Ingeniería Aeronáutica Diffusion Migration Heterogeneous solids Periodic homogenization Interphases
spellingShingle	Ingeniería Ingeniería Aeronáutica Diffusion Migration Heterogeneous solids Periodic homogenization Interphases Curto Sillamoni, Ignacio José Idiart, Martín Ignacio A model problem concerning ionic transport in microstructured solid electrolytes
topic_facet	Ingeniería Ingeniería Aeronáutica Diffusion Migration Heterogeneous solids Periodic homogenization Interphases
description	We consider ionic transport by diffusion and migration through microstructured solid electrolytes. The assumed constitutive relations for the constituent phases follow from convex energy and dissipation potentials which guarantee thermodynamic consistency. The effective response is determined by homogenizing the relevant field equations via the notion ofmulti-scale convergence. The resulting homogenized response involves several effective tensors, but they all require the solution of just one standard conductivity problem over the representative volume element. A multi-scale model for semicrystalline polymer electrolytes with spherulitic morphologies is derived by applying the theory to a specific class of two-dimensional microgeometries for which the effective response can be computed exactly. An enriched model accounting for a random dispersion of filler particles with interphases is also derived. In both cases, explicit expressions for the effective material parameters are provided. The models are used to explore the effect of crystallinity and filler content on the overall response. Predictions support recent experimental observations on doped poly-ethylene-oxide systems which suggest that the anisotropic crystalline phase can actually support faster ion transport than the amorphous phase along certain directions dictated by the morphology of the polymeric chains. Predictions also support the viewpoint that ceramic fillers improve ionic conductivity and cation transport number via interphasial effects.
format	Articulo Articulo
author	Curto Sillamoni, Ignacio José Idiart, Martín Ignacio
author_facet	Curto Sillamoni, Ignacio José Idiart, Martín Ignacio
author_sort	Curto Sillamoni, Ignacio José
title	A model problem concerning ionic transport in microstructured solid electrolytes
title_short	A model problem concerning ionic transport in microstructured solid electrolytes
title_full	A model problem concerning ionic transport in microstructured solid electrolytes
title_fullStr	A model problem concerning ionic transport in microstructured solid electrolytes
title_full_unstemmed	A model problem concerning ionic transport in microstructured solid electrolytes
title_sort	model problem concerning ionic transport in microstructured solid electrolytes
publishDate	2015
url	http://sedici.unlp.edu.ar/handle/10915/103069 https://link.springer.com/article/10.1007/s00161-014-0391-4
work_keys_str_mv	AT curtosillamoniignaciojose amodelproblemconcerningionictransportinmicrostructuredsolidelectrolytes AT idiartmartinignacio amodelproblemconcerningionictransportinmicrostructuredsolidelectrolytes AT curtosillamoniignaciojose modelproblemconcerningionictransportinmicrostructuredsolidelectrolytes AT idiartmartinignacio modelproblemconcerningionictransportinmicrostructuredsolidelectrolytes
bdutipo_str	Repositorios
_version_	1764820441428393984

A model problem concerning ionic transport in microstructured solid electrolytes

Ejemplares similares