Finite element modelling of ion transport in the electrolyte of a 3D-microbattery
2011 (English)In: Solid State Ionics, ISSN 0167-2738, E-ISSN 1872-7689, Vol. 192, no 1, 279-283 p.Article in journal (Refereed) Published
A mathematical model describing ionic transport in a 3D-microbattery (3D-MB) electrolyte is developed here using finite element methodology. The model is then exploited to study a 3D-MB based on an interdigitated plate ("trench") architecture for a 10 pm-thick electrolyte layer separating 10 mu m-thick graphite anode and LiCoO(2) cathode plates. The effect of varying plate length, end-shape and electronic conductivity is also modelled. It is shown that the 3D-MB architecture gives rise to qualitatively non-uniform current densities, leading to sub-optimal surface utilization. This can, in turn, be optimized by varying electrode geometries and/or material properties.
Place, publisher, year, edition, pages
2011. Vol. 192, no 1, 279-283 p.
Three-dimensional microbattery, Electrolyte modelling, Finite element analysis
Chemical Sciences Inorganic Chemistry
Research subject Chemistry with specialization in Inorganic Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-157213DOI: 10.1016/j.ssi.2010.02.007ISI: 000292848800060OAI: oai:DiVA.org:uu-157213DiVA: diva2:435880
Conference: 17th International Conference on Solid State Lonics Location: Toronto, CANADA Date: JUN 28-JUL 03, 2009 2011-08-202011-08-202011-11-29Bibliographically approved